CVE-2024-37356 (GCVE-0-2024-37356)
Vulnerability from cvelistv5 – Published: 2024-06-21 10:18 – Updated: 2026-05-12 11:54
VLAI
EPSS
VEX
Title
tcp: Fix shift-out-of-bounds in dctcp_update_alpha().
Summary
In the Linux kernel, the following vulnerability has been resolved:
tcp: Fix shift-out-of-bounds in dctcp_update_alpha().
In dctcp_update_alpha(), we use a module parameter dctcp_shift_g
as follows:
alpha -= min_not_zero(alpha, alpha >> dctcp_shift_g);
...
delivered_ce <<= (10 - dctcp_shift_g);
It seems syzkaller started fuzzing module parameters and triggered
shift-out-of-bounds [0] by setting 100 to dctcp_shift_g:
memcpy((void*)0x20000080,
"/sys/module/tcp_dctcp/parameters/dctcp_shift_g\000", 47);
res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x20000080ul,
/*flags=*/2ul, /*mode=*/0ul);
memcpy((void*)0x20000000, "100\000", 4);
syscall(__NR_write, /*fd=*/r[0], /*val=*/0x20000000ul, /*len=*/4ul);
Let's limit the max value of dctcp_shift_g by param_set_uint_minmax().
With this patch:
# echo 10 > /sys/module/tcp_dctcp/parameters/dctcp_shift_g
# cat /sys/module/tcp_dctcp/parameters/dctcp_shift_g
10
# echo 11 > /sys/module/tcp_dctcp/parameters/dctcp_shift_g
-bash: echo: write error: Invalid argument
[0]:
UBSAN: shift-out-of-bounds in net/ipv4/tcp_dctcp.c:143:12
shift exponent 100 is too large for 32-bit type 'u32' (aka 'unsigned int')
CPU: 0 PID: 8083 Comm: syz-executor345 Not tainted 6.9.0-05151-g1b294a1f3561 #2
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
1.13.0-1ubuntu1.1 04/01/2014
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x201/0x300 lib/dump_stack.c:114
ubsan_epilogue lib/ubsan.c:231 [inline]
__ubsan_handle_shift_out_of_bounds+0x346/0x3a0 lib/ubsan.c:468
dctcp_update_alpha+0x540/0x570 net/ipv4/tcp_dctcp.c:143
tcp_in_ack_event net/ipv4/tcp_input.c:3802 [inline]
tcp_ack+0x17b1/0x3bc0 net/ipv4/tcp_input.c:3948
tcp_rcv_state_process+0x57a/0x2290 net/ipv4/tcp_input.c:6711
tcp_v4_do_rcv+0x764/0xc40 net/ipv4/tcp_ipv4.c:1937
sk_backlog_rcv include/net/sock.h:1106 [inline]
__release_sock+0x20f/0x350 net/core/sock.c:2983
release_sock+0x61/0x1f0 net/core/sock.c:3549
mptcp_subflow_shutdown+0x3d0/0x620 net/mptcp/protocol.c:2907
mptcp_check_send_data_fin+0x225/0x410 net/mptcp/protocol.c:2976
__mptcp_close+0x238/0xad0 net/mptcp/protocol.c:3072
mptcp_close+0x2a/0x1a0 net/mptcp/protocol.c:3127
inet_release+0x190/0x1f0 net/ipv4/af_inet.c:437
__sock_release net/socket.c:659 [inline]
sock_close+0xc0/0x240 net/socket.c:1421
__fput+0x41b/0x890 fs/file_table.c:422
task_work_run+0x23b/0x300 kernel/task_work.c:180
exit_task_work include/linux/task_work.h:38 [inline]
do_exit+0x9c8/0x2540 kernel/exit.c:878
do_group_exit+0x201/0x2b0 kernel/exit.c:1027
__do_sys_exit_group kernel/exit.c:1038 [inline]
__se_sys_exit_group kernel/exit.c:1036 [inline]
__x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1036
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xe4/0x240 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x67/0x6f
RIP: 0033:0x7f6c2b5005b6
Code: Unable to access opcode bytes at 0x7f6c2b50058c.
RSP: 002b:00007ffe883eb948 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f6c2b5862f0 RCX: 00007f6c2b5005b6
RDX: 0000000000000001 RSI: 000000000000003c RDI: 0000000000000001
RBP: 0000000000000001 R08: 00000000000000e7 R09: ffffffffffffffc0
R10: 0000000000000006 R11: 0000000000000246 R12: 00007f6c2b5862f0
R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001
</TASK>
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-21 13:56 UTC
Assigner
References
12 references
Impacted products
9 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
e3118e8359bb7c59555aca60c725106e6d78c5ce , < 06d0fe049b51b0a92a70df8333fd85c4ba3eb2c6
(git)
Affected: e3118e8359bb7c59555aca60c725106e6d78c5ce , < 6aacaa80d962f4916ccf90e2080306cec6c90fcf (git) Affected: e3118e8359bb7c59555aca60c725106e6d78c5ce , < e9b2f60636d18dfd0dd4965b3316f88dfd6a2b31 (git) Affected: e3118e8359bb7c59555aca60c725106e6d78c5ce , < 8602150286a2a860a1dc55cbd04f99316f19b40a (git) Affected: e3118e8359bb7c59555aca60c725106e6d78c5ce , < e65d13ec00a738fa7661925fd5929ab3c765d4be (git) Affected: e3118e8359bb7c59555aca60c725106e6d78c5ce , < 02261d3f9dc7d1d7be7d778f839e3404ab99034c (git) Affected: e3118e8359bb7c59555aca60c725106e6d78c5ce , < 237340dee373b97833a491d2e99fcf1d4a9adafd (git) Affected: e3118e8359bb7c59555aca60c725106e6d78c5ce , < 3ebc46ca8675de6378e3f8f40768e180bb8afa66 (git) |
guessed | |
| Linux | Linux |
Affected:
3.18
Unaffected: 0 , < 3.18 (semver) Unaffected: 4.19.316 , ≤ 4.19.* (semver) Unaffected: 5.4.278 , ≤ 5.4.* (semver) Unaffected: 5.10.219 , ≤ 5.10.* (semver) Unaffected: 5.15.161 , ≤ 5.15.* (semver) Unaffected: 6.1.93 , ≤ 6.1.* (semver) Unaffected: 6.6.33 , ≤ 6.6.* (semver) Unaffected: 6.9.4 , ≤ 6.9.* (semver) Unaffected: 6.10 , ≤ * (original_commit_for_fix) |
guessed | |
| Siemens | RUGGEDCOM RST2428P |
Affected:
0 , < V3.1
(custom)
|
guessed | |
| Siemens | SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family |
Unaffected:
0 , < *
(custom)
|
guessed | |
| Siemens | SCALANCE XCM-/XRM-/XCH-/XRH-300 family |
Affected:
0 , < V3.1
(custom)
|
guessed | |
| Siemens | SIMATIC S7-1500 TM MFP - GNU/Linux subsystem |
Affected:
0 , < *
(custom)
|
guessed | |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.0 , < V3.1.5
(custom)
|
guessed | |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.0 , < V3.1.5
(custom)
|
guessed | |
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.0 , < V3.1.5
(custom)
|
guessed |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2024-37356",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-06-21T13:56:45.436880Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-06-21T13:57:55.391Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2025-11-04T17:21:20.246Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/06d0fe049b51b0a92a70df8333fd85c4ba3eb2c6"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/6aacaa80d962f4916ccf90e2080306cec6c90fcf"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/e9b2f60636d18dfd0dd4965b3316f88dfd6a2b31"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/8602150286a2a860a1dc55cbd04f99316f19b40a"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/e65d13ec00a738fa7661925fd5929ab3c765d4be"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/02261d3f9dc7d1d7be7d778f839e3404ab99034c"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/237340dee373b97833a491d2e99fcf1d4a9adafd"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/3ebc46ca8675de6378e3f8f40768e180bb8afa66"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"
}
],
"title": "CVE Program Container"
},
{
"affected": [
{
"defaultStatus": "unknown",
"product": "RUGGEDCOM RST2428P",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V3.1",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SCALANCE XCM-/XRM-/XCH-/XRH-300 family",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V3.1",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V3.1.5",
"status": "affected",
"version": "V3.1.0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V3.1.5",
"status": "affected",
"version": "V3.1.0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V3.1.5",
"status": "affected",
"version": "V3.1.0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V3.1.5",
"status": "affected",
"version": "V3.1.0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V3.1.5",
"status": "affected",
"version": "V3.1.0",
"versionType": "custom"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-12T11:54:30.036Z",
"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"shortName": "siemens-SADP"
},
"references": [
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-398330.html"
},
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
},
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-613116.html"
}
],
"x_adpType": "supplier"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/ipv4/tcp_dctcp.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "06d0fe049b51b0a92a70df8333fd85c4ba3eb2c6",
"status": "affected",
"version": "e3118e8359bb7c59555aca60c725106e6d78c5ce",
"versionType": "git"
},
{
"lessThan": "6aacaa80d962f4916ccf90e2080306cec6c90fcf",
"status": "affected",
"version": "e3118e8359bb7c59555aca60c725106e6d78c5ce",
"versionType": "git"
},
{
"lessThan": "e9b2f60636d18dfd0dd4965b3316f88dfd6a2b31",
"status": "affected",
"version": "e3118e8359bb7c59555aca60c725106e6d78c5ce",
"versionType": "git"
},
{
"lessThan": "8602150286a2a860a1dc55cbd04f99316f19b40a",
"status": "affected",
"version": "e3118e8359bb7c59555aca60c725106e6d78c5ce",
"versionType": "git"
},
{
"lessThan": "e65d13ec00a738fa7661925fd5929ab3c765d4be",
"status": "affected",
"version": "e3118e8359bb7c59555aca60c725106e6d78c5ce",
"versionType": "git"
},
{
"lessThan": "02261d3f9dc7d1d7be7d778f839e3404ab99034c",
"status": "affected",
"version": "e3118e8359bb7c59555aca60c725106e6d78c5ce",
"versionType": "git"
},
{
"lessThan": "237340dee373b97833a491d2e99fcf1d4a9adafd",
"status": "affected",
"version": "e3118e8359bb7c59555aca60c725106e6d78c5ce",
"versionType": "git"
},
{
"lessThan": "3ebc46ca8675de6378e3f8f40768e180bb8afa66",
"status": "affected",
"version": "e3118e8359bb7c59555aca60c725106e6d78c5ce",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/ipv4/tcp_dctcp.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "3.18"
},
{
"lessThan": "3.18",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.316",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.278",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.219",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.161",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.93",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.33",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.9.*",
"status": "unaffected",
"version": "6.9.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.10",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "4.19.316",
"versionStartIncluding": "3.18",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.278",
"versionStartIncluding": "3.18",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.219",
"versionStartIncluding": "3.18",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.161",
"versionStartIncluding": "3.18",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.93",
"versionStartIncluding": "3.18",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.33",
"versionStartIncluding": "3.18",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.9.4",
"versionStartIncluding": "3.18",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.10",
"versionStartIncluding": "3.18",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntcp: Fix shift-out-of-bounds in dctcp_update_alpha().\n\nIn dctcp_update_alpha(), we use a module parameter dctcp_shift_g\nas follows:\n\n alpha -= min_not_zero(alpha, alpha \u003e\u003e dctcp_shift_g);\n ...\n delivered_ce \u003c\u003c= (10 - dctcp_shift_g);\n\nIt seems syzkaller started fuzzing module parameters and triggered\nshift-out-of-bounds [0] by setting 100 to dctcp_shift_g:\n\n memcpy((void*)0x20000080,\n \"/sys/module/tcp_dctcp/parameters/dctcp_shift_g\\000\", 47);\n res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x20000080ul,\n /*flags=*/2ul, /*mode=*/0ul);\n memcpy((void*)0x20000000, \"100\\000\", 4);\n syscall(__NR_write, /*fd=*/r[0], /*val=*/0x20000000ul, /*len=*/4ul);\n\nLet\u0027s limit the max value of dctcp_shift_g by param_set_uint_minmax().\n\nWith this patch:\n\n # echo 10 \u003e /sys/module/tcp_dctcp/parameters/dctcp_shift_g\n # cat /sys/module/tcp_dctcp/parameters/dctcp_shift_g\n 10\n # echo 11 \u003e /sys/module/tcp_dctcp/parameters/dctcp_shift_g\n -bash: echo: write error: Invalid argument\n\n[0]:\nUBSAN: shift-out-of-bounds in net/ipv4/tcp_dctcp.c:143:12\nshift exponent 100 is too large for 32-bit type \u0027u32\u0027 (aka \u0027unsigned int\u0027)\nCPU: 0 PID: 8083 Comm: syz-executor345 Not tainted 6.9.0-05151-g1b294a1f3561 #2\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS\n1.13.0-1ubuntu1.1 04/01/2014\nCall Trace:\n \u003cTASK\u003e\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0x201/0x300 lib/dump_stack.c:114\n ubsan_epilogue lib/ubsan.c:231 [inline]\n __ubsan_handle_shift_out_of_bounds+0x346/0x3a0 lib/ubsan.c:468\n dctcp_update_alpha+0x540/0x570 net/ipv4/tcp_dctcp.c:143\n tcp_in_ack_event net/ipv4/tcp_input.c:3802 [inline]\n tcp_ack+0x17b1/0x3bc0 net/ipv4/tcp_input.c:3948\n tcp_rcv_state_process+0x57a/0x2290 net/ipv4/tcp_input.c:6711\n tcp_v4_do_rcv+0x764/0xc40 net/ipv4/tcp_ipv4.c:1937\n sk_backlog_rcv include/net/sock.h:1106 [inline]\n __release_sock+0x20f/0x350 net/core/sock.c:2983\n release_sock+0x61/0x1f0 net/core/sock.c:3549\n mptcp_subflow_shutdown+0x3d0/0x620 net/mptcp/protocol.c:2907\n mptcp_check_send_data_fin+0x225/0x410 net/mptcp/protocol.c:2976\n __mptcp_close+0x238/0xad0 net/mptcp/protocol.c:3072\n mptcp_close+0x2a/0x1a0 net/mptcp/protocol.c:3127\n inet_release+0x190/0x1f0 net/ipv4/af_inet.c:437\n __sock_release net/socket.c:659 [inline]\n sock_close+0xc0/0x240 net/socket.c:1421\n __fput+0x41b/0x890 fs/file_table.c:422\n task_work_run+0x23b/0x300 kernel/task_work.c:180\n exit_task_work include/linux/task_work.h:38 [inline]\n do_exit+0x9c8/0x2540 kernel/exit.c:878\n do_group_exit+0x201/0x2b0 kernel/exit.c:1027\n __do_sys_exit_group kernel/exit.c:1038 [inline]\n __se_sys_exit_group kernel/exit.c:1036 [inline]\n __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1036\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xe4/0x240 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x67/0x6f\nRIP: 0033:0x7f6c2b5005b6\nCode: Unable to access opcode bytes at 0x7f6c2b50058c.\nRSP: 002b:00007ffe883eb948 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7\nRAX: ffffffffffffffda RBX: 00007f6c2b5862f0 RCX: 00007f6c2b5005b6\nRDX: 0000000000000001 RSI: 000000000000003c RDI: 0000000000000001\nRBP: 0000000000000001 R08: 00000000000000e7 R09: ffffffffffffffc0\nR10: 0000000000000006 R11: 0000000000000246 R12: 00007f6c2b5862f0\nR13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001\n \u003c/TASK\u003e"
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T20:18:28.367Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/06d0fe049b51b0a92a70df8333fd85c4ba3eb2c6"
},
{
"url": "https://git.kernel.org/stable/c/6aacaa80d962f4916ccf90e2080306cec6c90fcf"
},
{
"url": "https://git.kernel.org/stable/c/e9b2f60636d18dfd0dd4965b3316f88dfd6a2b31"
},
{
"url": "https://git.kernel.org/stable/c/8602150286a2a860a1dc55cbd04f99316f19b40a"
},
{
"url": "https://git.kernel.org/stable/c/e65d13ec00a738fa7661925fd5929ab3c765d4be"
},
{
"url": "https://git.kernel.org/stable/c/02261d3f9dc7d1d7be7d778f839e3404ab99034c"
},
{
"url": "https://git.kernel.org/stable/c/237340dee373b97833a491d2e99fcf1d4a9adafd"
},
{
"url": "https://git.kernel.org/stable/c/3ebc46ca8675de6378e3f8f40768e180bb8afa66"
}
],
"title": "tcp: Fix shift-out-of-bounds in dctcp_update_alpha().",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2024-37356",
"datePublished": "2024-06-21T10:18:11.642Z",
"dateReserved": "2024-06-21T10:13:16.306Z",
"dateUpdated": "2026-05-12T11:54:30.036Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2024-37356",
"date": "2026-09-16",
"epss": "0.00247",
"percentile": "0.16193"
},
"fkie_nvd": {
"descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ntcp: Fix shift-out-of-bounds in dctcp_update_alpha().\\n\\nIn dctcp_update_alpha(), we use a module parameter dctcp_shift_g\\nas follows:\\n\\n alpha -= min_not_zero(alpha, alpha \u003e\u003e dctcp_shift_g);\\n ...\\n delivered_ce \u003c\u003c= (10 - dctcp_shift_g);\\n\\nIt seems syzkaller started fuzzing module parameters and triggered\\nshift-out-of-bounds [0] by setting 100 to dctcp_shift_g:\\n\\n memcpy((void*)0x20000080,\\n \\\"/sys/module/tcp_dctcp/parameters/dctcp_shift_g\\\\000\\\", 47);\\n res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x20000080ul,\\n /*flags=*/2ul, /*mode=*/0ul);\\n memcpy((void*)0x20000000, \\\"100\\\\000\\\", 4);\\n syscall(__NR_write, /*fd=*/r[0], /*val=*/0x20000000ul, /*len=*/4ul);\\n\\nLet\u0027s limit the max value of dctcp_shift_g by param_set_uint_minmax().\\n\\nWith this patch:\\n\\n # echo 10 \u003e /sys/module/tcp_dctcp/parameters/dctcp_shift_g\\n # cat /sys/module/tcp_dctcp/parameters/dctcp_shift_g\\n 10\\n # echo 11 \u003e /sys/module/tcp_dctcp/parameters/dctcp_shift_g\\n -bash: echo: write error: Invalid argument\\n\\n[0]:\\nUBSAN: shift-out-of-bounds in net/ipv4/tcp_dctcp.c:143:12\\nshift exponent 100 is too large for 32-bit type \u0027u32\u0027 (aka \u0027unsigned int\u0027)\\nCPU: 0 PID: 8083 Comm: syz-executor345 Not tainted 6.9.0-05151-g1b294a1f3561 #2\\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS\\n1.13.0-1ubuntu1.1 04/01/2014\\nCall Trace:\\n \u003cTASK\u003e\\n __dump_stack lib/dump_stack.c:88 [inline]\\n dump_stack_lvl+0x201/0x300 lib/dump_stack.c:114\\n ubsan_epilogue lib/ubsan.c:231 [inline]\\n __ubsan_handle_shift_out_of_bounds+0x346/0x3a0 lib/ubsan.c:468\\n dctcp_update_alpha+0x540/0x570 net/ipv4/tcp_dctcp.c:143\\n tcp_in_ack_event net/ipv4/tcp_input.c:3802 [inline]\\n tcp_ack+0x17b1/0x3bc0 net/ipv4/tcp_input.c:3948\\n tcp_rcv_state_process+0x57a/0x2290 net/ipv4/tcp_input.c:6711\\n tcp_v4_do_rcv+0x764/0xc40 net/ipv4/tcp_ipv4.c:1937\\n sk_backlog_rcv include/net/sock.h:1106 [inline]\\n __release_sock+0x20f/0x350 net/core/sock.c:2983\\n release_sock+0x61/0x1f0 net/core/sock.c:3549\\n mptcp_subflow_shutdown+0x3d0/0x620 net/mptcp/protocol.c:2907\\n mptcp_check_send_data_fin+0x225/0x410 net/mptcp/protocol.c:2976\\n __mptcp_close+0x238/0xad0 net/mptcp/protocol.c:3072\\n mptcp_close+0x2a/0x1a0 net/mptcp/protocol.c:3127\\n inet_release+0x190/0x1f0 net/ipv4/af_inet.c:437\\n __sock_release net/socket.c:659 [inline]\\n sock_close+0xc0/0x240 net/socket.c:1421\\n __fput+0x41b/0x890 fs/file_table.c:422\\n task_work_run+0x23b/0x300 kernel/task_work.c:180\\n exit_task_work include/linux/task_work.h:38 [inline]\\n do_exit+0x9c8/0x2540 kernel/exit.c:878\\n do_group_exit+0x201/0x2b0 kernel/exit.c:1027\\n __do_sys_exit_group kernel/exit.c:1038 [inline]\\n __se_sys_exit_group kernel/exit.c:1036 [inline]\\n __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1036\\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\\n do_syscall_64+0xe4/0x240 arch/x86/entry/common.c:83\\n entry_SYSCALL_64_after_hwframe+0x67/0x6f\\nRIP: 0033:0x7f6c2b5005b6\\nCode: Unable to access opcode bytes at 0x7f6c2b50058c.\\nRSP: 002b:00007ffe883eb948 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7\\nRAX: ffffffffffffffda RBX: 00007f6c2b5862f0 RCX: 00007f6c2b5005b6\\nRDX: 0000000000000001 RSI: 000000000000003c RDI: 0000000000000001\\nRBP: 0000000000000001 R08: 00000000000000e7 R09: ffffffffffffffc0\\nR10: 0000000000000006 R11: 0000000000000246 R12: 00007f6c2b5862f0\\nR13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001\\n \u003c/TASK\u003e\"}, {\"lang\": \"es\", \"value\": \"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tcp: corrige el desplazamiento fuera de los l\\u00edmites en dctcp_update_alpha(). En dctcp_update_alpha(), utilizamos un par\\u00e1metro de m\\u00f3dulo dctcp_shift_g de la siguiente manera: alpha -= min_not_zero(alpha, alpha \u0026gt;\u0026gt; dctcp_shift_g); ... entregado_ce \u0026lt;\u0026lt;= (10 - dctcp_shift_g); Parece que syzkaller comenz\\u00f3 a modificar los par\\u00e1metros del m\\u00f3dulo y activ\\u00f3 el desplazamiento fuera de los l\\u00edmites [0] estableciendo 100 en dctcp_shift_g: memcpy((void*)0x20000080, \\\"/sys/module/tcp_dctcp/parameters/dctcp_shift_g\\\\000\\\", 47) ; res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x20000080ul, /*flags=*/2ul, /*mode=*/0ul); memcpy((void*)0x20000000, \\\"100\\\\000\\\", 4); syscall(__NR_write, /*fd=*/r[0], /*val=*/0x20000000ul, /*len=*/4ul); Limitemos el valor m\\u00e1ximo de dctcp_shift_g mediante param_set_uint_minmax(). Con este parche: # echo 10 \u0026gt; /sys/module/tcp_dctcp/parameters/dctcp_shift_g # cat /sys/module/tcp_dctcp/parameters/dctcp_shift_g 10 # echo 11 \u0026gt; /sys/module/tcp_dctcp/parameters/dctcp_shift_g -bash: echo: error de escritura: argumento no v\\u00e1lido [0]: UBSAN: desplazamiento fuera de los l\\u00edmites en net/ipv4/tcp_dctcp.c:143:12 el exponente de desplazamiento 100 es demasiado grande para el tipo \u0027u32\u0027 de 32 bits (tambi\\u00e9n conocido como \u0027int sin signo\u0027 ) CPU: 0 PID: 8083 Comm: syz-executor345 No contaminado 6.9.0-05151-g1b294a1f3561 #2 Nombre del hardware: PC est\\u00e1ndar QEMU (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 01/04/2014 Seguimiento de llamadas: __dump_stack lib/dump_stack.c:88 [en l\\u00ednea] dump_stack_lvl+0x201/0x300 lib/dump_stack.c:114 ubsan_epilogue lib/ubsan.c:231 [en l\\u00ednea] __ubsan_handle_shift_out_of_bounds+0x346/0x3a0 lib/ubsan.c :468 dctcp_update_alpha+0x540/0x570 net/ipv4/tcp_dctcp.c:143 tcp_in_ack_event net/ipv4/tcp_input.c:3802 [en l\\u00ednea] tcp_ack+0x17b1/0x3bc0 net/ipv4/tcp_input.c:3948 v_state_process+0x57a/0x2290 neto/ ipv4/tcp_input.c:6711 tcp_v4_do_rcv+0x764/0xc40 net/ipv4/tcp_ipv4.c:1937 sk_backlog_rcv include/net/sock.h:1106 [en l\\u00ednea] __release_sock+0x20f/0x350 net/core/sock.c:2983 release_sock+ 0x61/0x1f0 net/core/sock.c:3549 mptcp_subflow_shutdown+0x3d0/0x620 net/mptcp/protocol.c:2907 mptcp_check_send_data_fin+0x225/0x410 net/mptcp/protocol.c:2976 __mptcp_close+0x238/0x ad0 net/mptcp/protocolo .c:3072 mptcp_close+0x2a/0x1a0 net/mptcp/protocol.c:3127 inet_release+0x190/0x1f0 net/ipv4/af_inet.c:437 __sock_release net/socket.c:659 [en l\\u00ednea] sock_close+0xc0/0x240 net/ socket.c:1421 __fput+0x41b/0x890 fs/file_table.c:422 task_work_run+0x23b/0x300 kernel/task_work.c:180 exit_task_work include/linux/task_work.h:38 [en l\\u00ednea] do_exit+0x9c8/0x2540 kernel/exit .c:878 do_group_exit+0x201/0x2b0 kernel/exit.c:1027 __do_sys_exit_group kernel/exit.c:1038 [en l\\u00ednea] __se_sys_exit_group kernel/exit.c:1036 [en l\\u00ednea] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:10 36 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xe4/0x240 arch/x86/entry/common.c:83 Entry_SYSCALL_64_after_hwframe+0x67/0x6f RIP: 0033:0x7f6c2b5005b6 C\\u00f3digo: no se puede acceder a los bytes del c\\u00f3digo de operaci\\u00f3n en 0x7f6c2b50058c . RSP: 002b:00007ffe883eb948 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f6c2b5862f0 RCX: 00007f6c2b5005b6 RDX: 0000000001 RSI: 000000000000003c RDI: 0000000000000001 RBP: 0000000000000001 R08: 00000000000000e7 R09: ffffffffffffffc0 R10: 06 R11: 0000000000000246 R12: 00007f6c2b5862f0 R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 \"}]",
"id": "CVE-2024-37356",
"lastModified": "2024-11-21T09:23:42.667",
"published": "2024-06-21T11:15:10.677",
"references": "[{\"url\": \"https://git.kernel.org/stable/c/02261d3f9dc7d1d7be7d778f839e3404ab99034c\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/06d0fe049b51b0a92a70df8333fd85c4ba3eb2c6\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/237340dee373b97833a491d2e99fcf1d4a9adafd\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/3ebc46ca8675de6378e3f8f40768e180bb8afa66\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/6aacaa80d962f4916ccf90e2080306cec6c90fcf\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/8602150286a2a860a1dc55cbd04f99316f19b40a\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/e65d13ec00a738fa7661925fd5929ab3c765d4be\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/e9b2f60636d18dfd0dd4965b3316f88dfd6a2b31\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/02261d3f9dc7d1d7be7d778f839e3404ab99034c\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/06d0fe049b51b0a92a70df8333fd85c4ba3eb2c6\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/237340dee373b97833a491d2e99fcf1d4a9adafd\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/3ebc46ca8675de6378e3f8f40768e180bb8afa66\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/6aacaa80d962f4916ccf90e2080306cec6c90fcf\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/8602150286a2a860a1dc55cbd04f99316f19b40a\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/e65d13ec00a738fa7661925fd5929ab3c765d4be\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/e9b2f60636d18dfd0dd4965b3316f88dfd6a2b31\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}]",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Awaiting Analysis"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2024-37356\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-06-21T11:15:10.677\",\"lastModified\":\"2026-06-17T07:38:12.693\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ntcp: Fix shift-out-of-bounds in dctcp_update_alpha().\\n\\nIn dctcp_update_alpha(), we use a module parameter dctcp_shift_g\\nas follows:\\n\\n alpha -= min_not_zero(alpha, alpha \u003e\u003e dctcp_shift_g);\\n ...\\n delivered_ce \u003c\u003c= (10 - dctcp_shift_g);\\n\\nIt seems syzkaller started fuzzing module parameters and triggered\\nshift-out-of-bounds [0] by setting 100 to dctcp_shift_g:\\n\\n memcpy((void*)0x20000080,\\n \\\"/sys/module/tcp_dctcp/parameters/dctcp_shift_g\\\\000\\\", 47);\\n res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x20000080ul,\\n /*flags=*/2ul, /*mode=*/0ul);\\n memcpy((void*)0x20000000, \\\"100\\\\000\\\", 4);\\n syscall(__NR_write, /*fd=*/r[0], /*val=*/0x20000000ul, /*len=*/4ul);\\n\\nLet\u0027s limit the max value of dctcp_shift_g by param_set_uint_minmax().\\n\\nWith this patch:\\n\\n # echo 10 \u003e /sys/module/tcp_dctcp/parameters/dctcp_shift_g\\n # cat /sys/module/tcp_dctcp/parameters/dctcp_shift_g\\n 10\\n # echo 11 \u003e /sys/module/tcp_dctcp/parameters/dctcp_shift_g\\n -bash: echo: write error: Invalid argument\\n\\n[0]:\\nUBSAN: shift-out-of-bounds in net/ipv4/tcp_dctcp.c:143:12\\nshift exponent 100 is too large for 32-bit type \u0027u32\u0027 (aka \u0027unsigned int\u0027)\\nCPU: 0 PID: 8083 Comm: syz-executor345 Not tainted 6.9.0-05151-g1b294a1f3561 #2\\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS\\n1.13.0-1ubuntu1.1 04/01/2014\\nCall Trace:\\n \u003cTASK\u003e\\n __dump_stack lib/dump_stack.c:88 [inline]\\n dump_stack_lvl+0x201/0x300 lib/dump_stack.c:114\\n ubsan_epilogue lib/ubsan.c:231 [inline]\\n __ubsan_handle_shift_out_of_bounds+0x346/0x3a0 lib/ubsan.c:468\\n dctcp_update_alpha+0x540/0x570 net/ipv4/tcp_dctcp.c:143\\n tcp_in_ack_event net/ipv4/tcp_input.c:3802 [inline]\\n tcp_ack+0x17b1/0x3bc0 net/ipv4/tcp_input.c:3948\\n tcp_rcv_state_process+0x57a/0x2290 net/ipv4/tcp_input.c:6711\\n tcp_v4_do_rcv+0x764/0xc40 net/ipv4/tcp_ipv4.c:1937\\n sk_backlog_rcv include/net/sock.h:1106 [inline]\\n __release_sock+0x20f/0x350 net/core/sock.c:2983\\n release_sock+0x61/0x1f0 net/core/sock.c:3549\\n mptcp_subflow_shutdown+0x3d0/0x620 net/mptcp/protocol.c:2907\\n mptcp_check_send_data_fin+0x225/0x410 net/mptcp/protocol.c:2976\\n __mptcp_close+0x238/0xad0 net/mptcp/protocol.c:3072\\n mptcp_close+0x2a/0x1a0 net/mptcp/protocol.c:3127\\n inet_release+0x190/0x1f0 net/ipv4/af_inet.c:437\\n __sock_release net/socket.c:659 [inline]\\n sock_close+0xc0/0x240 net/socket.c:1421\\n __fput+0x41b/0x890 fs/file_table.c:422\\n task_work_run+0x23b/0x300 kernel/task_work.c:180\\n exit_task_work include/linux/task_work.h:38 [inline]\\n do_exit+0x9c8/0x2540 kernel/exit.c:878\\n do_group_exit+0x201/0x2b0 kernel/exit.c:1027\\n __do_sys_exit_group kernel/exit.c:1038 [inline]\\n __se_sys_exit_group kernel/exit.c:1036 [inline]\\n __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1036\\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\\n do_syscall_64+0xe4/0x240 arch/x86/entry/common.c:83\\n entry_SYSCALL_64_after_hwframe+0x67/0x6f\\nRIP: 0033:0x7f6c2b5005b6\\nCode: Unable to access opcode bytes at 0x7f6c2b50058c.\\nRSP: 002b:00007ffe883eb948 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7\\nRAX: ffffffffffffffda RBX: 00007f6c2b5862f0 RCX: 00007f6c2b5005b6\\nRDX: 0000000000000001 RSI: 000000000000003c RDI: 0000000000000001\\nRBP: 0000000000000001 R08: 00000000000000e7 R09: ffffffffffffffc0\\nR10: 0000000000000006 R11: 0000000000000246 R12: 00007f6c2b5862f0\\nR13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001\\n \u003c/TASK\u003e\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tcp: corrige el desplazamiento fuera de los l\u00edmites en dctcp_update_alpha(). En dctcp_update_alpha(), utilizamos un par\u00e1metro de m\u00f3dulo dctcp_shift_g de la siguiente manera: alpha -= min_not_zero(alpha, alpha \u0026gt;\u0026gt; dctcp_shift_g); ... entregado_ce \u0026lt;\u0026lt;= (10 - dctcp_shift_g); Parece que syzkaller comenz\u00f3 a modificar los par\u00e1metros del m\u00f3dulo y activ\u00f3 el desplazamiento fuera de los l\u00edmites [0] estableciendo 100 en dctcp_shift_g: memcpy((void*)0x20000080, \\\"/sys/module/tcp_dctcp/parameters/dctcp_shift_g\\\\000\\\", 47) ; res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x20000080ul, /*flags=*/2ul, /*mode=*/0ul); memcpy((void*)0x20000000, \\\"100\\\\000\\\", 4); syscall(__NR_write, /*fd=*/r[0], /*val=*/0x20000000ul, /*len=*/4ul); Limitemos el valor m\u00e1ximo de dctcp_shift_g mediante param_set_uint_minmax(). Con este parche: # echo 10 \u0026gt; /sys/module/tcp_dctcp/parameters/dctcp_shift_g # cat /sys/module/tcp_dctcp/parameters/dctcp_shift_g 10 # echo 11 \u0026gt; /sys/module/tcp_dctcp/parameters/dctcp_shift_g -bash: echo: error de escritura: argumento no v\u00e1lido [0]: UBSAN: desplazamiento fuera de los l\u00edmites en net/ipv4/tcp_dctcp.c:143:12 el exponente de desplazamiento 100 es demasiado grande para el tipo \u0027u32\u0027 de 32 bits (tambi\u00e9n conocido como \u0027int sin signo\u0027 ) CPU: 0 PID: 8083 Comm: syz-executor345 No contaminado 6.9.0-05151-g1b294a1f3561 #2 Nombre del hardware: PC est\u00e1ndar QEMU (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 01/04/2014 Seguimiento de llamadas: __dump_stack lib/dump_stack.c:88 [en l\u00ednea] dump_stack_lvl+0x201/0x300 lib/dump_stack.c:114 ubsan_epilogue lib/ubsan.c:231 [en l\u00ednea] __ubsan_handle_shift_out_of_bounds+0x346/0x3a0 lib/ubsan.c :468 dctcp_update_alpha+0x540/0x570 net/ipv4/tcp_dctcp.c:143 tcp_in_ack_event net/ipv4/tcp_input.c:3802 [en l\u00ednea] tcp_ack+0x17b1/0x3bc0 net/ipv4/tcp_input.c:3948 v_state_process+0x57a/0x2290 neto/ ipv4/tcp_input.c:6711 tcp_v4_do_rcv+0x764/0xc40 net/ipv4/tcp_ipv4.c:1937 sk_backlog_rcv include/net/sock.h:1106 [en l\u00ednea] __release_sock+0x20f/0x350 net/core/sock.c:2983 release_sock+ 0x61/0x1f0 net/core/sock.c:3549 mptcp_subflow_shutdown+0x3d0/0x620 net/mptcp/protocol.c:2907 mptcp_check_send_data_fin+0x225/0x410 net/mptcp/protocol.c:2976 __mptcp_close+0x238/0x ad0 net/mptcp/protocolo .c:3072 mptcp_close+0x2a/0x1a0 net/mptcp/protocol.c:3127 inet_release+0x190/0x1f0 net/ipv4/af_inet.c:437 __sock_release net/socket.c:659 [en l\u00ednea] sock_close+0xc0/0x240 net/ socket.c:1421 __fput+0x41b/0x890 fs/file_table.c:422 task_work_run+0x23b/0x300 kernel/task_work.c:180 exit_task_work include/linux/task_work.h:38 [en l\u00ednea] do_exit+0x9c8/0x2540 kernel/exit .c:878 do_group_exit+0x201/0x2b0 kernel/exit.c:1027 __do_sys_exit_group kernel/exit.c:1038 [en l\u00ednea] __se_sys_exit_group kernel/exit.c:1036 [en l\u00ednea] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:10 36 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xe4/0x240 arch/x86/entry/common.c:83 Entry_SYSCALL_64_after_hwframe+0x67/0x6f RIP: 0033:0x7f6c2b5005b6 C\u00f3digo: no se puede acceder a los bytes del c\u00f3digo de operaci\u00f3n en 0x7f6c2b50058c . RSP: 002b:00007ffe883eb948 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f6c2b5862f0 RCX: 00007f6c2b5005b6 RDX: 0000000001 RSI: 000000000000003c RDI: 0000000000000001 RBP: 0000000000000001 R08: 00000000000000e7 R09: ffffffffffffffc0 R10: 06 R11: 0000000000000246 R12: 00007f6c2b5862f0 R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 \"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"net/ipv4/tcp_dctcp.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"e3118e8359bb7c59555aca60c725106e6d78c5ce\",\"lessThan\":\"06d0fe049b51b0a92a70df8333fd85c4ba3eb2c6\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"e3118e8359bb7c59555aca60c725106e6d78c5ce\",\"lessThan\":\"6aacaa80d962f4916ccf90e2080306cec6c90fcf\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"e3118e8359bb7c59555aca60c725106e6d78c5ce\",\"lessThan\":\"e9b2f60636d18dfd0dd4965b3316f88dfd6a2b31\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"e3118e8359bb7c59555aca60c725106e6d78c5ce\",\"lessThan\":\"8602150286a2a860a1dc55cbd04f99316f19b40a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"e3118e8359bb7c59555aca60c725106e6d78c5ce\",\"lessThan\":\"e65d13ec00a738fa7661925fd5929ab3c765d4be\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"e3118e8359bb7c59555aca60c725106e6d78c5ce\",\"lessThan\":\"02261d3f9dc7d1d7be7d778f839e3404ab99034c\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"e3118e8359bb7c59555aca60c725106e6d78c5ce\",\"lessThan\":\"237340dee373b97833a491d2e99fcf1d4a9adafd\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"e3118e8359bb7c59555aca60c725106e6d78c5ce\",\"lessThan\":\"3ebc46ca8675de6378e3f8f40768e180bb8afa66\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"net/ipv4/tcp_dctcp.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"3.18\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"3.18\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.19.316\",\"lessThanOrEqual\":\"4.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.278\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.219\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.161\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.93\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.33\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.9.4\",\"lessThanOrEqual\":\"6.9.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.10\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]},{\"source\":\"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\",\"affectedData\":[{\"vendor\":\"Siemens\",\"product\":\"RUGGEDCOM RST2428P\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"V3.1\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"unaffected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SCALANCE XCM-/XRM-/XCH-/XRH-300 family\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"V3.1\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIMATIC S7-1500 TM MFP - GNU/Linux subsystem\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"V3.1.0\",\"lessThan\":\"V3.1.5\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"V3.1.0\",\"lessThan\":\"V3.1.5\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"V3.1.0\",\"lessThan\":\"V3.1.5\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"V3.1.0\",\"lessThan\":\"V3.1.5\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"V3.1.0\",\"lessThan\":\"V3.1.5\",\"versionType\":\"custom\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-06-21T13:56:45.436880Z\",\"id\":\"CVE-2024-37356\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-190\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.18\",\"versionEndExcluding\":\"4.19.316\",\"matchCriteriaId\":\"38710DA2-400D-4570-BDB2-C84CC12E69E3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.278\",\"matchCriteriaId\":\"7FDBF235-DA18-49A1-8690-6C7272FD0701\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.219\",\"matchCriteriaId\":\"E9063AF3-D593-43B7-810D-58B87F82F9F9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.161\",\"matchCriteriaId\":\"31130639-53FE-4726-8986-434EE2528CB2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.93\",\"matchCriteriaId\":\"EEFB78EE-F990-4197-BF1C-156760A55667\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.33\",\"matchCriteriaId\":\"FCE796DF-3B50-4DC6-BAE5-95271068FC9E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.9.4\",\"matchCriteriaId\":\"991B9791-966A-4D18-9E8D-A8AB128E5627\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/02261d3f9dc7d1d7be7d778f839e3404ab99034c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/06d0fe049b51b0a92a70df8333fd85c4ba3eb2c6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/237340dee373b97833a491d2e99fcf1d4a9adafd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/3ebc46ca8675de6378e3f8f40768e180bb8afa66\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6aacaa80d962f4916ccf90e2080306cec6c90fcf\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8602150286a2a860a1dc55cbd04f99316f19b40a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e65d13ec00a738fa7661925fd5929ab3c765d4be\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e9b2f60636d18dfd0dd4965b3316f88dfd6a2b31\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/02261d3f9dc7d1d7be7d778f839e3404ab99034c\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/06d0fe049b51b0a92a70df8333fd85c4ba3eb2c6\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/237340dee373b97833a491d2e99fcf1d4a9adafd\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/3ebc46ca8675de6378e3f8f40768e180bb8afa66\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6aacaa80d962f4916ccf90e2080306cec6c90fcf\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8602150286a2a860a1dc55cbd04f99316f19b40a\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e65d13ec00a738fa7661925fd5929ab3c765d4be\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e9b2f60636d18dfd0dd4965b3316f88dfd6a2b31\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://cert-portal.siemens.com/productcert/html/ssa-265688.html\",\"source\":\"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\"},{\"url\":\"https://cert-portal.siemens.com/productcert/html/ssa-398330.html\",\"source\":\"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\"},{\"url\":\"https://cert-portal.siemens.com/productcert/html/ssa-613116.html\",\"source\":\"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\"}]}}",
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-06-28T08:04:47+00:00",
"cve": "CVE-2024-37356",
"id": "CVE-2024-37356",
"initial_release_date": "2024-06-21T00:00:00+00:00",
"product_status:fixed": "783",
"product_status:known_affected": "64",
"product_status:known_not_affected": "9",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: tcp: Fix shift-out-of-bounds in dctcp_update_alpha().",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-37356.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-09-03T00:23:58Z",
"cve": "CVE-2024-37356",
"id": "CVE-2024-37356",
"initial_release_date": "2024-06-24T23:16:33Z",
"product_status:known_affected": "20",
"product_status:known_not_affected": "644",
"product_status:recommended": "49",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2024-37356",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-37356.json",
"version": "62"
},
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/06d0fe049b51b0a92a70df8333fd85c4ba3eb2c6\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/6aacaa80d962f4916ccf90e2080306cec6c90fcf\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/e9b2f60636d18dfd0dd4965b3316f88dfd6a2b31\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/8602150286a2a860a1dc55cbd04f99316f19b40a\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/e65d13ec00a738fa7661925fd5929ab3c765d4be\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/02261d3f9dc7d1d7be7d778f839e3404ab99034c\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/237340dee373b97833a491d2e99fcf1d4a9adafd\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/3ebc46ca8675de6378e3f8f40768e180bb8afa66\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2025-11-04T17:21:20.246Z\"}}, {\"affected\": [{\"vendor\": \"Siemens\", \"product\": \"RUGGEDCOM RST2428P\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"V3.1\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \"SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"*\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \"SCALANCE XCM-/XRM-/XCH-/XRH-300 family\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"V3.1\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \"SIMATIC S7-1500 TM MFP - GNU/Linux subsystem\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"*\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP\", \"versions\": [{\"status\": \"affected\", \"version\": \"V3.1.0\", \"lessThan\": \"V3.1.5\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP\", \"versions\": [{\"status\": \"affected\", \"version\": \"V3.1.0\", \"lessThan\": \"V3.1.5\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP\", \"versions\": [{\"status\": \"affected\", \"version\": \"V3.1.0\", \"lessThan\": \"V3.1.5\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP\", \"versions\": [{\"status\": \"affected\", \"version\": \"V3.1.0\", \"lessThan\": \"V3.1.5\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP\", \"versions\": [{\"status\": \"affected\", \"version\": \"V3.1.0\", \"lessThan\": \"V3.1.5\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}], \"x_adpType\": \"supplier\", \"references\": [{\"url\": \"https://cert-portal.siemens.com/productcert/html/ssa-398330.html\"}, {\"url\": \"https://cert-portal.siemens.com/productcert/html/ssa-265688.html\"}, {\"url\": \"https://cert-portal.siemens.com/productcert/html/ssa-613116.html\"}], \"providerMetadata\": {\"orgId\": \"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\", \"shortName\": \"siemens-SADP\", \"dateUpdated\": \"2026-05-12T11:54:30.036Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-37356\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-06-21T13:56:45.436880Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-06-21T13:57:48.242Z\"}}], \"cna\": {\"title\": \"tcp: Fix shift-out-of-bounds in dctcp_update_alpha().\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"e3118e8359bb7c59555aca60c725106e6d78c5ce\", \"lessThan\": \"06d0fe049b51b0a92a70df8333fd85c4ba3eb2c6\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e3118e8359bb7c59555aca60c725106e6d78c5ce\", \"lessThan\": \"6aacaa80d962f4916ccf90e2080306cec6c90fcf\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e3118e8359bb7c59555aca60c725106e6d78c5ce\", \"lessThan\": \"e9b2f60636d18dfd0dd4965b3316f88dfd6a2b31\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e3118e8359bb7c59555aca60c725106e6d78c5ce\", \"lessThan\": \"8602150286a2a860a1dc55cbd04f99316f19b40a\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e3118e8359bb7c59555aca60c725106e6d78c5ce\", \"lessThan\": \"e65d13ec00a738fa7661925fd5929ab3c765d4be\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e3118e8359bb7c59555aca60c725106e6d78c5ce\", \"lessThan\": \"02261d3f9dc7d1d7be7d778f839e3404ab99034c\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e3118e8359bb7c59555aca60c725106e6d78c5ce\", \"lessThan\": \"237340dee373b97833a491d2e99fcf1d4a9adafd\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e3118e8359bb7c59555aca60c725106e6d78c5ce\", \"lessThan\": \"3ebc46ca8675de6378e3f8f40768e180bb8afa66\", \"versionType\": \"git\"}], \"programFiles\": [\"net/ipv4/tcp_dctcp.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"3.18\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"3.18\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.19.316\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.278\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.219\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.161\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.93\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.33\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9.4\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.9.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/ipv4/tcp_dctcp.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/06d0fe049b51b0a92a70df8333fd85c4ba3eb2c6\"}, {\"url\": \"https://git.kernel.org/stable/c/6aacaa80d962f4916ccf90e2080306cec6c90fcf\"}, {\"url\": \"https://git.kernel.org/stable/c/e9b2f60636d18dfd0dd4965b3316f88dfd6a2b31\"}, {\"url\": \"https://git.kernel.org/stable/c/8602150286a2a860a1dc55cbd04f99316f19b40a\"}, {\"url\": \"https://git.kernel.org/stable/c/e65d13ec00a738fa7661925fd5929ab3c765d4be\"}, {\"url\": \"https://git.kernel.org/stable/c/02261d3f9dc7d1d7be7d778f839e3404ab99034c\"}, {\"url\": \"https://git.kernel.org/stable/c/237340dee373b97833a491d2e99fcf1d4a9adafd\"}, {\"url\": \"https://git.kernel.org/stable/c/3ebc46ca8675de6378e3f8f40768e180bb8afa66\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ntcp: Fix shift-out-of-bounds in dctcp_update_alpha().\\n\\nIn dctcp_update_alpha(), we use a module parameter dctcp_shift_g\\nas follows:\\n\\n alpha -= min_not_zero(alpha, alpha \u003e\u003e dctcp_shift_g);\\n ...\\n delivered_ce \u003c\u003c= (10 - dctcp_shift_g);\\n\\nIt seems syzkaller started fuzzing module parameters and triggered\\nshift-out-of-bounds [0] by setting 100 to dctcp_shift_g:\\n\\n memcpy((void*)0x20000080,\\n \\\"/sys/module/tcp_dctcp/parameters/dctcp_shift_g\\\\000\\\", 47);\\n res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x20000080ul,\\n /*flags=*/2ul, /*mode=*/0ul);\\n memcpy((void*)0x20000000, \\\"100\\\\000\\\", 4);\\n syscall(__NR_write, /*fd=*/r[0], /*val=*/0x20000000ul, /*len=*/4ul);\\n\\nLet\u0027s limit the max value of dctcp_shift_g by param_set_uint_minmax().\\n\\nWith this patch:\\n\\n # echo 10 \u003e /sys/module/tcp_dctcp/parameters/dctcp_shift_g\\n # cat /sys/module/tcp_dctcp/parameters/dctcp_shift_g\\n 10\\n # echo 11 \u003e /sys/module/tcp_dctcp/parameters/dctcp_shift_g\\n -bash: echo: write error: Invalid argument\\n\\n[0]:\\nUBSAN: shift-out-of-bounds in net/ipv4/tcp_dctcp.c:143:12\\nshift exponent 100 is too large for 32-bit type \u0027u32\u0027 (aka \u0027unsigned int\u0027)\\nCPU: 0 PID: 8083 Comm: syz-executor345 Not tainted 6.9.0-05151-g1b294a1f3561 #2\\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS\\n1.13.0-1ubuntu1.1 04/01/2014\\nCall Trace:\\n \u003cTASK\u003e\\n __dump_stack lib/dump_stack.c:88 [inline]\\n dump_stack_lvl+0x201/0x300 lib/dump_stack.c:114\\n ubsan_epilogue lib/ubsan.c:231 [inline]\\n __ubsan_handle_shift_out_of_bounds+0x346/0x3a0 lib/ubsan.c:468\\n dctcp_update_alpha+0x540/0x570 net/ipv4/tcp_dctcp.c:143\\n tcp_in_ack_event net/ipv4/tcp_input.c:3802 [inline]\\n tcp_ack+0x17b1/0x3bc0 net/ipv4/tcp_input.c:3948\\n tcp_rcv_state_process+0x57a/0x2290 net/ipv4/tcp_input.c:6711\\n tcp_v4_do_rcv+0x764/0xc40 net/ipv4/tcp_ipv4.c:1937\\n sk_backlog_rcv include/net/sock.h:1106 [inline]\\n __release_sock+0x20f/0x350 net/core/sock.c:2983\\n release_sock+0x61/0x1f0 net/core/sock.c:3549\\n mptcp_subflow_shutdown+0x3d0/0x620 net/mptcp/protocol.c:2907\\n mptcp_check_send_data_fin+0x225/0x410 net/mptcp/protocol.c:2976\\n __mptcp_close+0x238/0xad0 net/mptcp/protocol.c:3072\\n mptcp_close+0x2a/0x1a0 net/mptcp/protocol.c:3127\\n inet_release+0x190/0x1f0 net/ipv4/af_inet.c:437\\n __sock_release net/socket.c:659 [inline]\\n sock_close+0xc0/0x240 net/socket.c:1421\\n __fput+0x41b/0x890 fs/file_table.c:422\\n task_work_run+0x23b/0x300 kernel/task_work.c:180\\n exit_task_work include/linux/task_work.h:38 [inline]\\n do_exit+0x9c8/0x2540 kernel/exit.c:878\\n do_group_exit+0x201/0x2b0 kernel/exit.c:1027\\n __do_sys_exit_group kernel/exit.c:1038 [inline]\\n __se_sys_exit_group kernel/exit.c:1036 [inline]\\n __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1036\\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\\n do_syscall_64+0xe4/0x240 arch/x86/entry/common.c:83\\n entry_SYSCALL_64_after_hwframe+0x67/0x6f\\nRIP: 0033:0x7f6c2b5005b6\\nCode: Unable to access opcode bytes at 0x7f6c2b50058c.\\nRSP: 002b:00007ffe883eb948 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7\\nRAX: ffffffffffffffda RBX: 00007f6c2b5862f0 RCX: 00007f6c2b5005b6\\nRDX: 0000000000000001 RSI: 000000000000003c RDI: 0000000000000001\\nRBP: 0000000000000001 R08: 00000000000000e7 R09: ffffffffffffffc0\\nR10: 0000000000000006 R11: 0000000000000246 R12: 00007f6c2b5862f0\\nR13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001\\n \u003c/TASK\u003e\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.316\", \"versionStartIncluding\": \"3.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.278\", \"versionStartIncluding\": \"3.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.219\", \"versionStartIncluding\": \"3.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.161\", \"versionStartIncluding\": \"3.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.93\", \"versionStartIncluding\": \"3.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.33\", \"versionStartIncluding\": \"3.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.9.4\", \"versionStartIncluding\": \"3.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10\", \"versionStartIncluding\": \"3.18\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T20:18:28.367Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2024-37356\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-12T11:54:30.036Z\", \"dateReserved\": \"2024-06-21T10:13:16.306Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-06-21T10:18:11.642Z\", \"assignerShortName\": \"Linux\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…