CVE-2024-26615
Vulnerability from cvelistv5
Published
2024-02-29 15:52
Modified
2024-12-19 08:43
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: net/smc: fix illegal rmb_desc access in SMC-D connection dump A crash was found when dumping SMC-D connections. It can be reproduced by following steps: - run nginx/wrk test: smc_run nginx smc_run wrk -t 16 -c 1000 -d <duration> -H 'Connection: Close' <URL> - continuously dump SMC-D connections in parallel: watch -n 1 'smcss -D' BUG: kernel NULL pointer dereference, address: 0000000000000030 CPU: 2 PID: 7204 Comm: smcss Kdump: loaded Tainted: G E 6.7.0+ #55 RIP: 0010:__smc_diag_dump.constprop.0+0x5e5/0x620 [smc_diag] Call Trace: <TASK> ? __die+0x24/0x70 ? page_fault_oops+0x66/0x150 ? exc_page_fault+0x69/0x140 ? asm_exc_page_fault+0x26/0x30 ? __smc_diag_dump.constprop.0+0x5e5/0x620 [smc_diag] ? __kmalloc_node_track_caller+0x35d/0x430 ? __alloc_skb+0x77/0x170 smc_diag_dump_proto+0xd0/0xf0 [smc_diag] smc_diag_dump+0x26/0x60 [smc_diag] netlink_dump+0x19f/0x320 __netlink_dump_start+0x1dc/0x300 smc_diag_handler_dump+0x6a/0x80 [smc_diag] ? __pfx_smc_diag_dump+0x10/0x10 [smc_diag] sock_diag_rcv_msg+0x121/0x140 ? __pfx_sock_diag_rcv_msg+0x10/0x10 netlink_rcv_skb+0x5a/0x110 sock_diag_rcv+0x28/0x40 netlink_unicast+0x22a/0x330 netlink_sendmsg+0x1f8/0x420 __sock_sendmsg+0xb0/0xc0 ____sys_sendmsg+0x24e/0x300 ? copy_msghdr_from_user+0x62/0x80 ___sys_sendmsg+0x7c/0xd0 ? __do_fault+0x34/0x160 ? do_read_fault+0x5f/0x100 ? do_fault+0xb0/0x110 ? __handle_mm_fault+0x2b0/0x6c0 __sys_sendmsg+0x4d/0x80 do_syscall_64+0x69/0x180 entry_SYSCALL_64_after_hwframe+0x6e/0x76 It is possible that the connection is in process of being established when we dump it. Assumed that the connection has been registered in a link group by smc_conn_create() but the rmb_desc has not yet been initialized by smc_buf_create(), thus causing the illegal access to conn->rmb_desc. So fix it by checking before dump.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1fea9969b81c67d0cb1611d1b8b7d19049d937bePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/27aea64838914c6122db5b8bd4bed865c9736f22Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5fed92ca32eafbfae8b6bee8ca34cca71c6a8b6dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/68b888d51ac82f2b96bf5e077a31d76afcdef25aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6994dba06321e3c48fdad0ba796a063d9d82183aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8f3f9186e5bb96a9c9654c41653210e3ea7e48a6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a164c2922675d7051805cdaf2b07daffe44f20d9Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dbc153fd3c142909e564bb256da087e13fbf239cPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/1fea9969b81c67d0cb1611d1b8b7d19049d937bePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/27aea64838914c6122db5b8bd4bed865c9736f22Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/5fed92ca32eafbfae8b6bee8ca34cca71c6a8b6dPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/68b888d51ac82f2b96bf5e077a31d76afcdef25aPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/6994dba06321e3c48fdad0ba796a063d9d82183aPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/8f3f9186e5bb96a9c9654c41653210e3ea7e48a6Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a164c2922675d7051805cdaf2b07daffe44f20d9Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/dbc153fd3c142909e564bb256da087e13fbf239cPatch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/06/msg00017.htmlPatch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/06/msg00020.htmlPatch
Impacted products
Vendor Product Version
Linux Linux Version: 4.19
Show details on NVD website

To clipboard 

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    "cveId": "CVE-2024-26615",
    "datePublished": "2024-02-29T15:52:18.843Z",
    "dateReserved": "2024-02-19T14:20:24.131Z",
    "dateUpdated": "2024-12-19T08:43:34.525Z",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-26615\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-03-11T18:15:19.337\",\"lastModified\":\"2024-12-12T15:31:02.167\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet/smc: fix illegal rmb_desc access in SMC-D connection dump\\n\\nA crash was found when dumping SMC-D connections. It can be reproduced\\nby following steps:\\n\\n- run nginx/wrk test:\\n  smc_run nginx\\n  smc_run wrk -t 16 -c 1000 -d \u003cduration\u003e -H \u0027Connection: Close\u0027 \u003cURL\u003e\\n\\n- continuously dump SMC-D connections in parallel:\\n  watch -n 1 \u0027smcss -D\u0027\\n\\n BUG: kernel NULL pointer dereference, address: 0000000000000030\\n CPU: 2 PID: 7204 Comm: smcss Kdump: loaded Tainted: G\\tE      6.7.0+ #55\\n RIP: 0010:__smc_diag_dump.constprop.0+0x5e5/0x620 [smc_diag]\\n Call Trace:\\n  \u003cTASK\u003e\\n  ? __die+0x24/0x70\\n  ? page_fault_oops+0x66/0x150\\n  ? exc_page_fault+0x69/0x140\\n  ? asm_exc_page_fault+0x26/0x30\\n  ? __smc_diag_dump.constprop.0+0x5e5/0x620 [smc_diag]\\n  ? __kmalloc_node_track_caller+0x35d/0x430\\n  ? __alloc_skb+0x77/0x170\\n  smc_diag_dump_proto+0xd0/0xf0 [smc_diag]\\n  smc_diag_dump+0x26/0x60 [smc_diag]\\n  netlink_dump+0x19f/0x320\\n  __netlink_dump_start+0x1dc/0x300\\n  smc_diag_handler_dump+0x6a/0x80 [smc_diag]\\n  ? __pfx_smc_diag_dump+0x10/0x10 [smc_diag]\\n  sock_diag_rcv_msg+0x121/0x140\\n  ? __pfx_sock_diag_rcv_msg+0x10/0x10\\n  netlink_rcv_skb+0x5a/0x110\\n  sock_diag_rcv+0x28/0x40\\n  netlink_unicast+0x22a/0x330\\n  netlink_sendmsg+0x1f8/0x420\\n  __sock_sendmsg+0xb0/0xc0\\n  ____sys_sendmsg+0x24e/0x300\\n  ? copy_msghdr_from_user+0x62/0x80\\n  ___sys_sendmsg+0x7c/0xd0\\n  ? __do_fault+0x34/0x160\\n  ? do_read_fault+0x5f/0x100\\n  ? do_fault+0xb0/0x110\\n  ? __handle_mm_fault+0x2b0/0x6c0\\n  __sys_sendmsg+0x4d/0x80\\n  do_syscall_64+0x69/0x180\\n  entry_SYSCALL_64_after_hwframe+0x6e/0x76\\n\\nIt is possible that the connection is in process of being established\\nwhen we dump it. Assumed that the connection has been registered in a\\nlink group by smc_conn_create() but the rmb_desc has not yet been\\ninitialized by smc_buf_create(), thus causing the illegal access to\\nconn-\u003ermb_desc. So fix it by checking before dump.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net/smc: corrige el acceso ilegal a rmb_desc en el volcado de conexiones SMC-D Se encontr\u00f3 un bloqueo al volcar conexiones SMC-D. Se puede reproducir mediante los siguientes pasos: - ejecute la prueba nginx/wrk: smc_run nginx smc_run wrk -t 16 -c 1000 -d  -H \u0027Conexi\u00f3n: Cerrar\u0027  - volcar continuamente las conexiones SMC-D en paralelo: watch -n 1 \u0027smcss -D\u0027 ERROR: desreferencia del puntero NULL del kernel, direcci\u00f3n: 00000000000000030 CPU: 2 PID: 7204 Comm: smcss Kdump: cargado Contaminado: GE 6.7.0+ #55 RIP: 0010:__smc_diag_dump.constprop.0+ 0x5e5/0x620 [smc_diag] Seguimiento de llamadas: ? __morir+0x24/0x70 ? page_fault_oops+0x66/0x150? exc_page_fault+0x69/0x140? asm_exc_page_fault+0x26/0x30? __smc_diag_dump.constprop.0+0x5e5/0x620 [smc_diag] ? __kmalloc_node_track_caller+0x35d/0x430 ? __alloc_skb+0x77/0x170 smc_diag_dump_proto+0xd0/0xf0 [smc_diag] smc_diag_dump+0x26/0x60 [smc_diag] netlink_dump+0x19f/0x320 __netlink_dump_start+0x1dc/0x300 smc_diag_handler_dump+ 0x6a/0x80 [smc_diag] ? __pfx_smc_diag_dump+0x10/0x10 [smc_diag] sock_diag_rcv_msg+0x121/0x140 ? __pfx_sock_diag_rcv_msg+0x10/0x10 netlink_rcv_skb+0x5a/0x110 sock_diag_rcv+0x28/0x40 netlink_unicast+0x22a/0x330 netlink_sendmsg+0x1f8/0x420 __sock_sendmsg+0xb0/0xc0 ____s ys_sendmsg+0x24e/0x300? copy_msghdr_from_user+0x62/0x80 ___sys_sendmsg+0x7c/0xd0 ? __do_fault+0x34/0x160? do_read_fault+0x5f/0x100? do_fault+0xb0/0x110? __handle_mm_fault+0x2b0/0x6c0 __sys_sendmsg+0x4d/0x80 do_syscall_64+0x69/0x180 Entry_SYSCALL_64_after_hwframe+0x6e/0x76 Es posible que la conexi\u00f3n est\u00e9 en proceso de establecerse cuando la volcamos. Se supone que la conexi\u00f3n ha sido registrada en un grupo de enlaces por smc_conn_create() pero rmb_desc a\u00fan no ha sido inicializado por smc_buf_create(), lo que provoca el acceso ilegal a conn-\u0026gt;rmb_desc. As\u00ed que solucionelo comprobando antes del volcado.\"}],\"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}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.19\",\"versionEndExcluding\":\"4.19.307\",\"matchCriteriaId\":\"06B28A70-F49B-4000-8405-B197D1957773\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.269\",\"matchCriteriaId\":\"319545F3-D56C-4751-BEBF-0505478BBAE8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.210\",\"matchCriteriaId\":\"F5CB4CA6-A9A0-4AFD-9102-8CF94D708170\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.149\",\"matchCriteriaId\":\"0D0465BB-4053-4E15-9137-6696EBAE90FD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.76\",\"matchCriteriaId\":\"32F0FEB3-5FE1-4400-A56D-886F09BE872E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.15\",\"matchCriteriaId\":\"87C718CB-AE3D-4B07-B4D9-BFF64183C468\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.7.3\",\"matchCriteriaId\":\"58FD5308-148A-40D3-B36A-0CA6B434A8BF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"B9F4EA73-0894-400F-A490-3A397AB7A517\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1fea9969b81c67d0cb1611d1b8b7d19049d937be\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/27aea64838914c6122db5b8bd4bed865c9736f22\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5fed92ca32eafbfae8b6bee8ca34cca71c6a8b6d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/68b888d51ac82f2b96bf5e077a31d76afcdef25a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6994dba06321e3c48fdad0ba796a063d9d82183a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8f3f9186e5bb96a9c9654c41653210e3ea7e48a6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a164c2922675d7051805cdaf2b07daffe44f20d9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/dbc153fd3c142909e564bb256da087e13fbf239c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/1fea9969b81c67d0cb1611d1b8b7d19049d937be\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/27aea64838914c6122db5b8bd4bed865c9736f22\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5fed92ca32eafbfae8b6bee8ca34cca71c6a8b6d\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/68b888d51ac82f2b96bf5e077a31d76afcdef25a\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6994dba06321e3c48fdad0ba796a063d9d82183a\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8f3f9186e5bb96a9c9654c41653210e3ea7e48a6\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a164c2922675d7051805cdaf2b07daffe44f20d9\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/dbc153fd3c142909e564bb256da087e13fbf239c\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html\",\"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\",\"tags\":[\"Patch\"]}]}}"
  }
}


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