CWE-476
AllowedNULL Pointer Dereference
Abstraction: Base · Status: Stable
The product dereferences a pointer that it expects to be valid but is NULL.
6310 vulnerabilities reference this CWE, most recent first.
GHSA-WVHC-GH4M-R3J8
Vulnerability from github – Published: 2025-06-18 12:30 – Updated: 2025-11-13 21:31In the Linux kernel, the following vulnerability has been resolved:
ASoC: DPCM: Don't pick up BE without substream
When DPCM tries to add valid BE connections at dpcm_add_paths(), it doesn't check whether the picked BE actually supports for the given stream direction. Due to that, when an asymmetric BE stream is present, it picks up wrongly and this may result in a NULL dereference at a later point where the code assumes the existence of a corresponding BE substream.
This patch adds the check for the presence of the substream for the target BE for avoiding the problem above.
Note that we have already some fix for non-existing BE substream at commit 6246f283d5e0 ("ASoC: dpcm: skip missing substream while applying symmetry"). But the code path we've hit recently is rather happening before the previous fix. So this patch tries to fix at picking up a BE instead of parsing BE lists.
{
"affected": [],
"aliases": [
"CVE-2022-50049"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-06-18T11:15:33Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: DPCM: Don\u0027t pick up BE without substream\n\nWhen DPCM tries to add valid BE connections at dpcm_add_paths(), it\ndoesn\u0027t check whether the picked BE actually supports for the given\nstream direction. Due to that, when an asymmetric BE stream is\npresent, it picks up wrongly and this may result in a NULL dereference\nat a later point where the code assumes the existence of a\ncorresponding BE substream.\n\nThis patch adds the check for the presence of the substream for the\ntarget BE for avoiding the problem above.\n\nNote that we have already some fix for non-existing BE substream at\ncommit 6246f283d5e0 (\"ASoC: dpcm: skip missing substream while\napplying symmetry\"). But the code path we\u0027ve hit recently is rather\nhappening before the previous fix. So this patch tries to fix at\npicking up a BE instead of parsing BE lists.",
"id": "GHSA-wvhc-gh4m-r3j8",
"modified": "2025-11-13T21:31:18Z",
"published": "2025-06-18T12:30:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50049"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6a840e8ef6b6c56d1b7e6a555adc31135e517875"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/754590651ccbbcc74a7c20907be4bb15d642bde3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/aa803e6ecac78e93b24ebefa17c207d6392d8ad4"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-WVJ8-VQJ8-XQG5
Vulnerability from github – Published: 2025-01-17 18:31 – Updated: 2025-01-17 18:31Belledonne Communications Linphone-Desktop is vulnerable to a NULL Dereference vulnerability, which could allow a remote attacker to create a denial-of-service condition.
{
"affected": [],
"aliases": [
"CVE-2025-0430"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-01-17T18:15:30Z",
"severity": "HIGH"
},
"details": "Belledonne Communications Linphone-Desktop \n is vulnerable to a NULL Dereference vulnerability, which could allow a remote attacker to create a denial-of-service condition.",
"id": "GHSA-wvj8-vqj8-xqg5",
"modified": "2025-01-17T18:31:15Z",
"published": "2025-01-17T18:31:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-0430"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-25-014-04"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-WVJJ-GC57-3W9J
Vulnerability from github – Published: 2025-10-07 18:31 – Updated: 2026-02-04 00:30In the Linux kernel, the following vulnerability has been resolved:
nvme-tcp: don't access released socket during error recovery
While the error recovery work is temporarily failing reconnect attempts, running the 'nvme list' command causes a kernel NULL pointer dereference by calling getsockname() with a released socket.
During error recovery work, the nvme tcp socket is released and a new one created, so it is not safe to access the socket without proper check.
{
"affected": [],
"aliases": [
"CVE-2023-53643"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-07T16:15:47Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-tcp: don\u0027t access released socket during error recovery\n\nWhile the error recovery work is temporarily failing reconnect attempts,\nrunning the \u0027nvme list\u0027 command causes a kernel NULL pointer dereference\nby calling getsockname() with a released socket.\n\nDuring error recovery work, the nvme tcp socket is released and a new one\ncreated, so it is not safe to access the socket without proper check.",
"id": "GHSA-wvjj-gc57-3w9j",
"modified": "2026-02-04T00:30:27Z",
"published": "2025-10-07T18:31:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53643"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/76d54bf20cdcc1ed7569a89885e09636e9a8d71d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d82f762db4776fa11de88018f0f5de2d5db72a72"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/fe2d9e54165dadaa0d0cc3355c0be9c3e129fa0d"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-WVR3-5588-32P4
Vulnerability from github – Published: 2025-11-24 15:30 – Updated: 2025-11-24 21:30NULL pointer dereference in coap_dtls_generate_cookie() in src/coap_openssl.c in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a crafted DTLS handshake that triggers SSL_get_SSL_CTX() to return NULL.
{
"affected": [],
"aliases": [
"CVE-2025-65498"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-11-24T14:15:47Z",
"severity": "MODERATE"
},
"details": "NULL pointer dereference in coap_dtls_generate_cookie() in src/coap_openssl.c in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a crafted DTLS handshake that triggers SSL_get_SSL_CTX() to return NULL.",
"id": "GHSA-wvr3-5588-32p4",
"modified": "2025-11-24T21:30:58Z",
"published": "2025-11-24T15:30:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-65498"
},
{
"type": "WEB",
"url": "https://github.com/obgm/libcoap/issues/1746"
},
{
"type": "WEB",
"url": "https://github.com/obgm/libcoap/pull/1750"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-WVRM-QGRR-87QR
Vulnerability from github – Published: 2024-06-20 12:31 – Updated: 2025-09-17 18:31In the Linux kernel, the following vulnerability has been resolved:
ARM: 9170/1: fix panic when kasan and kprobe are enabled
arm32 uses software to simulate the instruction replaced by kprobe. some instructions may be simulated by constructing assembly functions. therefore, before executing instruction simulation, it is necessary to construct assembly function execution environment in C language through binding registers. after kasan is enabled, the register binding relationship will be destroyed, resulting in instruction simulation errors and causing kernel panic.
the kprobe emulate instruction function is distributed in three files: actions-common.c actions-arm.c actions-thumb.c, so disable KASAN when compiling these files.
for example, use kprobe insert on cap_capable+20 after kasan enabled, the cap_capable assembly code is as follows: : e92d47f0 push {r4, r5, r6, r7, r8, r9, sl, lr} e1a05000 mov r5, r0 e280006c add r0, r0, #108 ; 0x6c e1a04001 mov r4, r1 e1a06002 mov r6, r2 e59fa090 ldr sl, [pc, #144] ; ebfc7bf8 bl c03aa4b4 <__asan_load4> e595706c ldr r7, [r5, #108] ; 0x6c e2859014 add r9, r5, #20 ...... The emulate_ldr assembly code after enabling kasan is as follows: c06f1384 : e92d47f0 push {r4, r5, r6, r7, r8, r9, sl, lr} e282803c add r8, r2, #60 ; 0x3c e1a05000 mov r5, r0 e7e37855 ubfx r7, r5, #16, #4 e1a00008 mov r0, r8 e1a09001 mov r9, r1 e1a04002 mov r4, r2 ebf35462 bl c03c6530 <__asan_load4> e357000f cmp r7, #15 e7e36655 ubfx r6, r5, #12, #4 e205a00f and sl, r5, #15 0a000001 beq c06f13bc e0840107 add r0, r4, r7, lsl #2 ebf3545c bl c03c6530 <__asan_load4> e084010a add r0, r4, sl, lsl #2 ebf3545a bl c03c6530 <__asan_load4> e2890010 add r0, r9, #16 ebf35458 bl c03c6530 <__asan_load4> e5990010 ldr r0, [r9, #16] e12fff30 blx r0 e356000f cm r6, #15 1a000014 bne c06f1430 e1a06000 mov r6, r0 e2840040 add r0, r4, #64 ; 0x40 ......
when running in emulate_ldr to simulate the ldr instruction, panic occurred, and the log is as follows: Unable to handle kernel NULL pointer dereference at virtual address 00000090 pgd = ecb46400 [00000090] pgd=2e0fa003, pmd=00000000 Internal error: Oops: 206 [#1] SMP ARM PC is at cap_capable+0x14/0xb0 LR is at emulate_ldr+0x50/0xc0 psr: 600d0293 sp : ecd63af8 ip : 00000004 fp : c0a7c30c r10: 00000000 r9 : c30897f4 r8 : ecd63cd4 r7 : 0000000f r6 : 0000000a r5 : e59fa090 r4 : ecd63c98 r3 : c06ae294 r2 : 00000000 r1 : b7611300 r0 : bf4ec008 Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment user Control: 32c5387d Table: 2d546400 DAC: 55555555 Process bash (pid: 1643, stack limit = 0xecd60190) (cap_capable) from (kprobe_handler+0x218/0x340) (kprobe_handler) from (kprobe_trap_handler+0x24/0x48) (kprobe_trap_handler) from (do_undefinstr+0x13c/0x364) (do_undefinstr) from (__und_svc_finish+0x0/0x30) (__und_svc_finish) from (cap_capable+0x18/0xb0) (cap_capable) from (cap_vm_enough_memory+0x38/0x48) (cap_vm_enough_memory) from (security_vm_enough_memory_mm+0x48/0x6c) (security_vm_enough_memory_mm) from (copy_process.constprop.5+0x16b4/0x25c8) (copy_process.constprop.5) from (_do_fork+0xe8/0x55c) (_do_fork) from (SyS_clone+0x1c/0x24) (SyS_clone) from (__sys_trace_return+0x0/0x10) Code: 0050a0e1 6c0080e2 0140a0e1 0260a0e1 (f801f0e7)
{
"affected": [],
"aliases": [
"CVE-2021-47618"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-06-20T11:15:54Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nARM: 9170/1: fix panic when kasan and kprobe are enabled\n\narm32 uses software to simulate the instruction replaced\nby kprobe. some instructions may be simulated by constructing\nassembly functions. therefore, before executing instruction\nsimulation, it is necessary to construct assembly function\nexecution environment in C language through binding registers.\nafter kasan is enabled, the register binding relationship will\nbe destroyed, resulting in instruction simulation errors and\ncausing kernel panic.\n\nthe kprobe emulate instruction function is distributed in three\nfiles: actions-common.c actions-arm.c actions-thumb.c, so disable\nKASAN when compiling these files.\n\nfor example, use kprobe insert on cap_capable+20 after kasan\nenabled, the cap_capable assembly code is as follows:\n\u003ccap_capable\u003e:\ne92d47f0\tpush\t{r4, r5, r6, r7, r8, r9, sl, lr}\ne1a05000\tmov\tr5, r0\ne280006c\tadd\tr0, r0, #108 ; 0x6c\ne1a04001\tmov\tr4, r1\ne1a06002\tmov\tr6, r2\ne59fa090\tldr\tsl, [pc, #144] ;\nebfc7bf8\tbl\tc03aa4b4 \u003c__asan_load4\u003e\ne595706c\tldr\tr7, [r5, #108] ; 0x6c\ne2859014\tadd\tr9, r5, #20\n......\nThe emulate_ldr assembly code after enabling kasan is as follows:\nc06f1384 \u003cemulate_ldr\u003e:\ne92d47f0\tpush\t{r4, r5, r6, r7, r8, r9, sl, lr}\ne282803c\tadd\tr8, r2, #60 ; 0x3c\ne1a05000\tmov\tr5, r0\ne7e37855\tubfx\tr7, r5, #16, #4\ne1a00008\tmov\tr0, r8\ne1a09001\tmov\tr9, r1\ne1a04002\tmov\tr4, r2\nebf35462\tbl\tc03c6530 \u003c__asan_load4\u003e\ne357000f\tcmp\tr7, #15\ne7e36655\tubfx\tr6, r5, #12, #4\ne205a00f\tand\tsl, r5, #15\n0a000001\tbeq\tc06f13bc \u003cemulate_ldr+0x38\u003e\ne0840107\tadd\tr0, r4, r7, lsl #2\nebf3545c\tbl\tc03c6530 \u003c__asan_load4\u003e\ne084010a\tadd\tr0, r4, sl, lsl #2\nebf3545a\tbl\tc03c6530 \u003c__asan_load4\u003e\ne2890010\tadd\tr0, r9, #16\nebf35458\tbl\tc03c6530 \u003c__asan_load4\u003e\ne5990010\tldr\tr0, [r9, #16]\ne12fff30\tblx\tr0\ne356000f\tcm\tr6, #15\n1a000014\tbne\tc06f1430 \u003cemulate_ldr+0xac\u003e\ne1a06000\tmov\tr6, r0\ne2840040\tadd\tr0, r4, #64 ; 0x40\n......\n\nwhen running in emulate_ldr to simulate the ldr instruction, panic\noccurred, and the log is as follows:\nUnable to handle kernel NULL pointer dereference at virtual address\n00000090\npgd = ecb46400\n[00000090] *pgd=2e0fa003, *pmd=00000000\nInternal error: Oops: 206 [#1] SMP ARM\nPC is at cap_capable+0x14/0xb0\nLR is at emulate_ldr+0x50/0xc0\npsr: 600d0293 sp : ecd63af8 ip : 00000004 fp : c0a7c30c\nr10: 00000000 r9 : c30897f4 r8 : ecd63cd4\nr7 : 0000000f r6 : 0000000a r5 : e59fa090 r4 : ecd63c98\nr3 : c06ae294 r2 : 00000000 r1 : b7611300 r0 : bf4ec008\nFlags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment user\nControl: 32c5387d Table: 2d546400 DAC: 55555555\nProcess bash (pid: 1643, stack limit = 0xecd60190)\n(cap_capable) from (kprobe_handler+0x218/0x340)\n(kprobe_handler) from (kprobe_trap_handler+0x24/0x48)\n(kprobe_trap_handler) from (do_undefinstr+0x13c/0x364)\n(do_undefinstr) from (__und_svc_finish+0x0/0x30)\n(__und_svc_finish) from (cap_capable+0x18/0xb0)\n(cap_capable) from (cap_vm_enough_memory+0x38/0x48)\n(cap_vm_enough_memory) from\n(security_vm_enough_memory_mm+0x48/0x6c)\n(security_vm_enough_memory_mm) from\n(copy_process.constprop.5+0x16b4/0x25c8)\n(copy_process.constprop.5) from (_do_fork+0xe8/0x55c)\n(_do_fork) from (SyS_clone+0x1c/0x24)\n(SyS_clone) from (__sys_trace_return+0x0/0x10)\nCode: 0050a0e1 6c0080e2 0140a0e1 0260a0e1 (f801f0e7)",
"id": "GHSA-wvrm-qgrr-87qr",
"modified": "2025-09-17T18:31:13Z",
"published": "2024-06-20T12:31:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47618"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1515e72aae803fc6b466adf918e71c4e4c9d5b3d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8b59b0a53c840921b625378f137e88adfa87647e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ba1863be105b06e10d0e2f6b1b8a0570801cfc71"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-WVVH-9XXX-C3M6
Vulnerability from github – Published: 2022-05-17 02:33 – Updated: 2022-05-17 02:33In TrustZone an untrusted pointer dereference vulnerability can potentially occur in a DRM routine in all Android releases from CAF using the Linux kernel.
{
"affected": [],
"aliases": [
"CVE-2015-9000"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-05-16T14:29:00Z",
"severity": "HIGH"
},
"details": "In TrustZone an untrusted pointer dereference vulnerability can potentially occur in a DRM routine in all Android releases from CAF using the Linux kernel.",
"id": "GHSA-wvvh-9xxx-c3m6",
"modified": "2022-05-17T02:33:14Z",
"published": "2022-05-17T02:33:14Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2015-9000"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/2017-04-01"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/97329"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1038201"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-WVX2-MP64-Q5WJ
Vulnerability from github – Published: 2026-04-24 15:32 – Updated: 2026-04-28 21:36In the Linux kernel, the following vulnerability has been resolved:
drm/i915/gt: Check set_default_submission() before deferencing
When the i915 driver firmware binaries are not present, the set_default_submission pointer is not set. This pointer is dereferenced during suspend anyways.
Add a check to make sure it is set before dereferencing.
[ 23.289926] PM: suspend entry (deep) [ 23.293558] Filesystems sync: 0.000 seconds [ 23.298010] Freezing user space processes [ 23.302771] Freezing user space processes completed (elapsed 0.000 seconds) [ 23.309766] OOM killer disabled. [ 23.313027] Freezing remaining freezable tasks [ 23.318540] Freezing remaining freezable tasks completed (elapsed 0.001 seconds) [ 23.342038] serial 00:05: disabled [ 23.345719] serial 00:02: disabled [ 23.349342] serial 00:01: disabled [ 23.353782] sd 0:0:0:0: [sda] Synchronizing SCSI cache [ 23.358993] sd 1:0:0:0: [sdb] Synchronizing SCSI cache [ 23.361635] ata1.00: Entering standby power mode [ 23.368863] ata2.00: Entering standby power mode [ 23.445187] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 23.452194] #PF: supervisor instruction fetch in kernel mode [ 23.457896] #PF: error_code(0x0010) - not-present page [ 23.463065] PGD 0 P4D 0 [ 23.465640] Oops: Oops: 0010 [#1] SMP NOPTI [ 23.469869] CPU: 8 UID: 0 PID: 211 Comm: kworker/u48:18 Tainted: G S W 6.19.0-rc4-00020-gf0b9d8eb98df #10 PREEMPT(voluntary) [ 23.482512] Tainted: [S]=CPU_OUT_OF_SPEC, [W]=WARN [ 23.496511] Workqueue: async async_run_entry_fn [ 23.501087] RIP: 0010:0x0 [ 23.503755] Code: Unable to access opcode bytes at 0xffffffffffffffd6. [ 23.510324] RSP: 0018:ffffb4a60065fca8 EFLAGS: 00010246 [ 23.515592] RAX: 0000000000000000 RBX: ffff9f428290e000 RCX: 000000000000000f [ 23.522765] RDX: 0000000000000000 RSI: 0000000000000282 RDI: ffff9f428290e000 [ 23.529937] RBP: ffff9f4282907070 R08: ffff9f4281130428 R09: 00000000ffffffff [ 23.537111] R10: 0000000000000000 R11: 0000000000000001 R12: ffff9f42829070f8 [ 23.544284] R13: ffff9f4282906028 R14: ffff9f4282900000 R15: ffff9f4282906b68 [ 23.551457] FS: 0000000000000000(0000) GS:ffff9f466b2cf000(0000) knlGS:0000000000000000 [ 23.559588] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.565365] CR2: ffffffffffffffd6 CR3: 000000031c230001 CR4: 0000000000f70ef0 [ 23.572539] PKRU: 55555554 [ 23.575281] Call Trace: [ 23.577770] [ 23.579905] intel_engines_reset_default_submission+0x42/0x60 [ 23.585695] __intel_gt_unset_wedged+0x191/0x200 [ 23.590360] intel_gt_unset_wedged+0x20/0x40 [ 23.594675] gt_sanitize+0x15e/0x170 [ 23.598290] i915_gem_suspend_late+0x6b/0x180 [ 23.602692] i915_drm_suspend_late+0x35/0xf0 [ 23.607008] ? __pfx_pci_pm_suspend_late+0x10/0x10 [ 23.611843] dpm_run_callback+0x78/0x1c0 [ 23.615817] device_suspend_late+0xde/0x2e0 [ 23.620037] async_suspend_late+0x18/0x30 [ 23.624082] async_run_entry_fn+0x25/0xa0 [ 23.628129] process_one_work+0x15b/0x380 [ 23.632182] worker_thread+0x2a5/0x3c0 [ 23.635973] ? __pfx_worker_thread+0x10/0x10 [ 23.640279] kthread+0xf6/0x1f0 [ 23.643464] ? __pfx_kthread+0x10/0x10 [ 23.647263] ? __pfx_kthread+0x10/0x10 [ 23.651045] ret_from_fork+0x131/0x190 [ 23.654837] ? __pfx_kthread+0x10/0x10 [ 23.658634] ret_from_fork_asm+0x1a/0x30 [ 23.662597] [ 23.664826] Modules linked in: [ 23.667914] CR2: 0000000000000000 [ 23.671271] ------------[ cut here ]------------
(cherry picked from commit daa199abc3d3d1740c9e3a2c3e9216ae5b447cad)
{
"affected": [],
"aliases": [
"CVE-2026-31540"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-04-24T15:16:27Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915/gt: Check set_default_submission() before deferencing\n\nWhen the i915 driver firmware binaries are not present, the\nset_default_submission pointer is not set. This pointer is\ndereferenced during suspend anyways.\n\nAdd a check to make sure it is set before dereferencing.\n\n[ 23.289926] PM: suspend entry (deep)\n[ 23.293558] Filesystems sync: 0.000 seconds\n[ 23.298010] Freezing user space processes\n[ 23.302771] Freezing user space processes completed (elapsed 0.000 seconds)\n[ 23.309766] OOM killer disabled.\n[ 23.313027] Freezing remaining freezable tasks\n[ 23.318540] Freezing remaining freezable tasks completed (elapsed 0.001 seconds)\n[ 23.342038] serial 00:05: disabled\n[ 23.345719] serial 00:02: disabled\n[ 23.349342] serial 00:01: disabled\n[ 23.353782] sd 0:0:0:0: [sda] Synchronizing SCSI cache\n[ 23.358993] sd 1:0:0:0: [sdb] Synchronizing SCSI cache\n[ 23.361635] ata1.00: Entering standby power mode\n[ 23.368863] ata2.00: Entering standby power mode\n[ 23.445187] BUG: kernel NULL pointer dereference, address: 0000000000000000\n[ 23.452194] #PF: supervisor instruction fetch in kernel mode\n[ 23.457896] #PF: error_code(0x0010) - not-present page\n[ 23.463065] PGD 0 P4D 0\n[ 23.465640] Oops: Oops: 0010 [#1] SMP NOPTI\n[ 23.469869] CPU: 8 UID: 0 PID: 211 Comm: kworker/u48:18 Tainted: G S W 6.19.0-rc4-00020-gf0b9d8eb98df #10 PREEMPT(voluntary)\n[ 23.482512] Tainted: [S]=CPU_OUT_OF_SPEC, [W]=WARN\n[ 23.496511] Workqueue: async async_run_entry_fn\n[ 23.501087] RIP: 0010:0x0\n[ 23.503755] Code: Unable to access opcode bytes at 0xffffffffffffffd6.\n[ 23.510324] RSP: 0018:ffffb4a60065fca8 EFLAGS: 00010246\n[ 23.515592] RAX: 0000000000000000 RBX: ffff9f428290e000 RCX: 000000000000000f\n[ 23.522765] RDX: 0000000000000000 RSI: 0000000000000282 RDI: ffff9f428290e000\n[ 23.529937] RBP: ffff9f4282907070 R08: ffff9f4281130428 R09: 00000000ffffffff\n[ 23.537111] R10: 0000000000000000 R11: 0000000000000001 R12: ffff9f42829070f8\n[ 23.544284] R13: ffff9f4282906028 R14: ffff9f4282900000 R15: ffff9f4282906b68\n[ 23.551457] FS: 0000000000000000(0000) GS:ffff9f466b2cf000(0000) knlGS:0000000000000000\n[ 23.559588] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 23.565365] CR2: ffffffffffffffd6 CR3: 000000031c230001 CR4: 0000000000f70ef0\n[ 23.572539] PKRU: 55555554\n[ 23.575281] Call Trace:\n[ 23.577770] \u003cTASK\u003e\n[ 23.579905] intel_engines_reset_default_submission+0x42/0x60\n[ 23.585695] __intel_gt_unset_wedged+0x191/0x200\n[ 23.590360] intel_gt_unset_wedged+0x20/0x40\n[ 23.594675] gt_sanitize+0x15e/0x170\n[ 23.598290] i915_gem_suspend_late+0x6b/0x180\n[ 23.602692] i915_drm_suspend_late+0x35/0xf0\n[ 23.607008] ? __pfx_pci_pm_suspend_late+0x10/0x10\n[ 23.611843] dpm_run_callback+0x78/0x1c0\n[ 23.615817] device_suspend_late+0xde/0x2e0\n[ 23.620037] async_suspend_late+0x18/0x30\n[ 23.624082] async_run_entry_fn+0x25/0xa0\n[ 23.628129] process_one_work+0x15b/0x380\n[ 23.632182] worker_thread+0x2a5/0x3c0\n[ 23.635973] ? __pfx_worker_thread+0x10/0x10\n[ 23.640279] kthread+0xf6/0x1f0\n[ 23.643464] ? __pfx_kthread+0x10/0x10\n[ 23.647263] ? __pfx_kthread+0x10/0x10\n[ 23.651045] ret_from_fork+0x131/0x190\n[ 23.654837] ? __pfx_kthread+0x10/0x10\n[ 23.658634] ret_from_fork_asm+0x1a/0x30\n[ 23.662597] \u003c/TASK\u003e\n[ 23.664826] Modules linked in:\n[ 23.667914] CR2: 0000000000000000\n[ 23.671271] ------------[ cut here ]------------\n\n(cherry picked from commit daa199abc3d3d1740c9e3a2c3e9216ae5b447cad)",
"id": "GHSA-wvx2-mp64-q5wj",
"modified": "2026-04-28T21:36:01Z",
"published": "2026-04-24T15:32:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31540"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0162ab3220bac870e43e229e6e3024d1a21c3f26"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1a16150729db8d997e39519f9d58e6b435c4c087"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2e20a886b443a71b573ceaed3ca7053d15380916"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/cf4b224ffb9a58181be32b64130fc36cf59c3192"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/da6552d67012a1cf0585f2eb401d0c4abcf108c9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/db8b1bebe81ffb410ddd746b6869f72e22420850"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/df1f4a7d9cf689b4e96c95255228896505f44c31"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-WW3H-62P9-9XF2
Vulnerability from github – Published: 2023-02-12 06:30 – Updated: 2023-02-21 18:30Denial of service in modem due to null pointer dereference while processing DNS packets
{
"affected": [],
"aliases": [
"CVE-2022-25733"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-02-12T04:15:00Z",
"severity": "HIGH"
},
"details": "Denial of service in modem due to null pointer dereference while processing DNS packets",
"id": "GHSA-ww3h-62p9-9xf2",
"modified": "2023-02-21T18:30:24Z",
"published": "2023-02-12T06:30:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-25733"
},
{
"type": "WEB",
"url": "https://www.qualcomm.com/company/product-security/bulletins/february-2023-bulletin"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-WW56-VHV9-VMG9
Vulnerability from github – Published: 2025-07-10 15:31 – Updated: 2025-07-10 15:31A flaw was found in libsoup. A NULL pointer dereference vulnerability occurs in libsoup's cookie parsing functionality. When processing a cookie without a domain parameter, the soup_cookie_jar_add_cookie() function will crash, resulting in a denial of service.
{
"affected": [],
"aliases": [
"CVE-2025-7370"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-10T15:15:30Z",
"severity": "HIGH"
},
"details": "A flaw was found in libsoup. A NULL pointer dereference vulnerability occurs in libsoup\u0027s cookie parsing functionality. When processing a cookie without a domain parameter, the soup_cookie_jar_add_cookie() function will crash, resulting in a denial of service.",
"id": "GHSA-ww56-vhv9-vmg9",
"modified": "2025-07-10T15:31:30Z",
"published": "2025-07-10T15:31:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-7370"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2025-7370"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2378888"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-WW84-6Q95-5PGR
Vulnerability from github – Published: 2022-05-14 03:31 – Updated: 2022-05-14 03:31The av_audio_fifo_size function in libavutil/audio_fifo.c in Libav 12.2 allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted media file.
{
"affected": [],
"aliases": [
"CVE-2017-18247"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-03-23T19:29:00Z",
"severity": "MODERATE"
},
"details": "The av_audio_fifo_size function in libavutil/audio_fifo.c in Libav 12.2 allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted media file.",
"id": "GHSA-ww84-6q95-5pgr",
"modified": "2022-05-14T03:31:33Z",
"published": "2022-05-14T03:31:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-18247"
},
{
"type": "WEB",
"url": "https://bugzilla.libav.org/show_bug.cgi?id=1089"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation MIT-56
For any pointers that could have been modified or provided from a function that can return NULL, check the pointer for NULL before use. When working with a multithreaded or otherwise asynchronous environment, ensure that proper locking APIs are used to lock before the check, and unlock when it has finished [REF-1484].
Mitigation
Select a programming language that is not susceptible to these issues.
Mitigation
Check the results of all functions that return a value and verify that the value is non-null before acting upon it.
Mitigation
Identify all variables and data stores that receive information from external sources, and apply input validation to make sure that they are only initialized to expected values.
Mitigation
Explicitly initialize all variables and other data stores, either during declaration or just before the first usage.
No CAPEC attack patterns related to this CWE.