CWE-476
AllowedNULL Pointer Dereference
Abstraction: Base · Status: Stable
The product dereferences a pointer that it expects to be valid but is NULL.
6298 vulnerabilities reference this CWE, most recent first.
GHSA-MQRH-MCFQ-VC54
Vulnerability from github – Published: 2022-05-14 03:49 – Updated: 2022-05-14 03:49poppler since version 0.17.3 has been vulnerable to NULL pointer dereference in pdfunite triggered by specially crafted documents.
{
"affected": [],
"aliases": [
"CVE-2017-7511"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-05-30T18:29:00Z",
"severity": "MODERATE"
},
"details": "poppler since version 0.17.3 has been vulnerable to NULL pointer dereference in pdfunite triggered by specially crafted documents.",
"id": "GHSA-mqrh-mcfq-vc54",
"modified": "2022-05-14T03:49:11Z",
"published": "2022-05-14T03:49:11Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-7511"
},
{
"type": "WEB",
"url": "https://cgit.freedesktop.org/poppler/poppler/commit/?id=5c9b08a875b07853be6c44e43ff5f7f059df666a"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201801-17"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MQW8-2GG2-V87M
Vulnerability from github – Published: 2022-05-17 03:38 – Updated: 2025-04-12 13:06A null pointer dereference bug affects the 16.02 and many old versions of p7zip. A lack of null pointer check for the variable folders.PackPositions in function CInArchive::ReadAndDecodePackedStreams in CPP/7zip/Archive/7z/7zIn.cpp, as used in the 7z.so library and in 7z applications, will cause a crash and a denial of service when decoding malformed 7z files.
{
"affected": [],
"aliases": [
"CVE-2016-9296"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2016-11-12T02:59:00Z",
"severity": "HIGH"
},
"details": "A null pointer dereference bug affects the 16.02 and many old versions of p7zip. A lack of null pointer check for the variable folders.PackPositions in function CInArchive::ReadAndDecodePackedStreams in CPP/7zip/Archive/7z/7zIn.cpp, as used in the 7z.so library and in 7z applications, will cause a crash and a denial of service when decoding malformed 7z files.",
"id": "GHSA-mqw8-2gg2-v87m",
"modified": "2025-04-12T13:06:28Z",
"published": "2022-05-17T03:38:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-9296"
},
{
"type": "WEB",
"url": "https://github.com/yangke/7zip-null-pointer-dereference"
},
{
"type": "WEB",
"url": "https://sourceforge.net/p/p7zip/bugs/185"
},
{
"type": "WEB",
"url": "https://sourceforge.net/p/p7zip/discussion/383043/thread/648d34db"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/94294"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MR3G-V6HC-GHW4
Vulnerability from github – Published: 2023-06-16 12:30 – Updated: 2024-04-04 04:54A null pointer dereference in Fortinet FortiOS before 7.2.5 and before 7.0.11, FortiProxy before 7.2.3 and before 7.0.9 allows attacker to denial of sslvpn service via specifically crafted request in network parameter.
{
"affected": [],
"aliases": [
"CVE-2023-33307"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-06-16T10:15:09Z",
"severity": "MODERATE"
},
"details": "A null pointer dereference in Fortinet FortiOS before 7.2.5 and before 7.0.11, FortiProxy before 7.2.3 and before 7.0.9 allows attacker to denial of sslvpn service via specifically crafted request in network parameter.",
"id": "GHSA-mr3g-v6hc-ghw4",
"modified": "2024-04-04T04:54:45Z",
"published": "2023-06-16T12:30:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-33307"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/258201"
},
{
"type": "WEB",
"url": "https://fortiguard.com/psirt/FG-IR-23-015"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MR3M-F78X-6FHF
Vulnerability from github – Published: 2024-05-17 15:31 – Updated: 2024-10-29 21:30In the Linux kernel, the following vulnerability has been resolved:
net: ll_temac: platform_get_resource replaced by wrong function
The function platform_get_resource was replaced with devm_platform_ioremap_resource_byname and is called using 0 as name.
This eventually ends up in platform_get_resource_byname in the call stack, where it causes a null pointer in strcmp.
if (type == resource_type(r) && !strcmp(r->name, name))
It should have been replaced with devm_platform_ioremap_resource.
{
"affected": [],
"aliases": [
"CVE-2024-35796"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-17T14:15:11Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ll_temac: platform_get_resource replaced by wrong function\n\nThe function platform_get_resource was replaced with\ndevm_platform_ioremap_resource_byname and is called using 0 as name.\n\nThis eventually ends up in platform_get_resource_byname in the call\nstack, where it causes a null pointer in strcmp.\n\n\tif (type == resource_type(r) \u0026\u0026 !strcmp(r-\u003ename, name))\n\nIt should have been replaced with devm_platform_ioremap_resource.",
"id": "GHSA-mr3m-f78x-6fhf",
"modified": "2024-10-29T21:30:45Z",
"published": "2024-05-17T15:31:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35796"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3a38a829c8bc27d78552c28e582eb1d885d07d11"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/46efbdbc95a30951c2579caf97b6df2ee2b3bef3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/476eed5f1c22034774902a980aa48dc4662cb39a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/553d294db94b5f139378022df480a9fb6c3ae39e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6d9395ba7f85bdb7af0b93272e537484ecbeff48"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7e9edb569fd9f688d887e36db8170f6e22bafbc8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/92c0c29f667870f17c0b764544bdf22ce0e886a1"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
}
],
"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-MR4M-76GC-52JC
Vulnerability from github – Published: 2024-07-12 15:31 – Updated: 2025-11-04 00:30In the Linux kernel, the following vulnerability has been resolved:
bnxt_en: Adjust logging of firmware messages in case of released token in __hwrm_send()
In case of token is released due to token->state == BNXT_HWRM_DEFERRED, released token (set to NULL) is used in log messages. This issue is expected to be prevented by HWRM_ERR_CODE_PF_UNAVAILABLE error code. But this error code is returned by recent firmware. So some firmware may not return it. This may lead to NULL pointer dereference. Adjust this issue by adding token pointer check.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
{
"affected": [],
"aliases": [
"CVE-2024-40919"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-07-12T13:15:14Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbnxt_en: Adjust logging of firmware messages in case of released token in __hwrm_send()\n\nIn case of token is released due to token-\u003estate == BNXT_HWRM_DEFERRED,\nreleased token (set to NULL) is used in log messages. This issue is\nexpected to be prevented by HWRM_ERR_CODE_PF_UNAVAILABLE error code. But\nthis error code is returned by recent firmware. So some firmware may not\nreturn it. This may lead to NULL pointer dereference.\nAdjust this issue by adding token pointer check.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE.",
"id": "GHSA-mr4m-76gc-52jc",
"modified": "2025-11-04T00:30:53Z",
"published": "2024-07-12T15:31:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-40919"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8b65eaeae88d4e9f999e806e196dd887b90bfed9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a9b9741854a9fe9df948af49ca5514e0ed0429df"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ca6660c956242623b4cfe9be2a1abc67907c44bf"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/cde177fa235cd36f981012504a6376315bac03c9"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
}
],
"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-MR69-6C22-JGQ8
Vulnerability from github – Published: 2025-09-05 18:31 – Updated: 2025-11-25 21:32In the Linux kernel, the following vulnerability has been resolved:
iommu/riscv: prevent NULL deref in iova_to_phys
The riscv_iommu_pte_fetch() function returns either NULL for unmapped/never-mapped iova, or a valid leaf pte pointer that requires no further validation.
riscv_iommu_iova_to_phys() failed to handle NULL returns. Prevent null pointer dereference in riscv_iommu_iova_to_phys(), and remove the pte validation.
{
"affected": [],
"aliases": [
"CVE-2025-39699"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-09-05T18:15:46Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/riscv: prevent NULL deref in iova_to_phys\n\nThe riscv_iommu_pte_fetch() function returns either NULL for\nunmapped/never-mapped iova, or a valid leaf pte pointer that\nrequires no further validation.\n\nriscv_iommu_iova_to_phys() failed to handle NULL returns.\nPrevent null pointer dereference in\nriscv_iommu_iova_to_phys(), and remove the pte validation.",
"id": "GHSA-mr69-6c22-jgq8",
"modified": "2025-11-25T21:32:04Z",
"published": "2025-09-05T18:31:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39699"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/220c491490255b656672bb572b18460cd9155926"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/99d4d1a070870aa08163af8ce0522992b7f35d8c"
}
],
"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-MR75-WQ82-9HCW
Vulnerability from github – Published: 2025-05-08 09:30 – Updated: 2025-11-14 21:30In the Linux kernel, the following vulnerability has been resolved:
scsi: ufs: mcq: Add NULL check in ufshcd_mcq_abort()
A race can occur between the MCQ completion path and the abort handler: once a request completes, __blk_mq_free_request() sets rq->mq_hctx to NULL, meaning the subsequent ufshcd_mcq_req_to_hwq() call in ufshcd_mcq_abort() can return a NULL pointer. If this NULL pointer is dereferenced, the kernel will crash.
Add a NULL check for the returned hwq pointer. If hwq is NULL, log an error and return FAILED, preventing a potential NULL-pointer dereference. As suggested by Bart, the ufshcd_cmd_inflight() check is removed.
This is similar to the fix in commit 74736103fb41 ("scsi: ufs: core: Fix ufshcd_abort_one racing issue").
This is found by our static analysis tool KNighter.
{
"affected": [],
"aliases": [
"CVE-2025-37828"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-08T07:15:54Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: ufs: mcq: Add NULL check in ufshcd_mcq_abort()\n\nA race can occur between the MCQ completion path and the abort handler:\nonce a request completes, __blk_mq_free_request() sets rq-\u003emq_hctx to\nNULL, meaning the subsequent ufshcd_mcq_req_to_hwq() call in\nufshcd_mcq_abort() can return a NULL pointer. If this NULL pointer is\ndereferenced, the kernel will crash.\n\nAdd a NULL check for the returned hwq pointer. If hwq is NULL, log an\nerror and return FAILED, preventing a potential NULL-pointer\ndereference. As suggested by Bart, the ufshcd_cmd_inflight() check is\nremoved.\n\nThis is similar to the fix in commit 74736103fb41 (\"scsi: ufs: core: Fix\nufshcd_abort_one racing issue\").\n\nThis is found by our static analysis tool KNighter.",
"id": "GHSA-mr75-wq82-9hcw",
"modified": "2025-11-14T21:30:26Z",
"published": "2025-05-08T09:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37828"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/47eec518aef3814f64a5da43df81bdd74d8c0041"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4c324085062919d4e21c69e5e78456dcec0052fe"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7d002f591486f5ef4bc02eb02025a53f931f0eb5"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d6979fabe812a168d5053e5a41d5a2e9b8afd7bf"
}
],
"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-MR76-QPG3-4RQ3
Vulnerability from github – Published: 2022-05-14 03:28 – Updated: 2022-05-14 03:28In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Automobile, Snapdragon Mobile, and Snapdragon Wear MDM9206, MDM9607, MDM9635M, MDM9640, MDM9645, MDM9650, MDM9655, MSM8909W, SD 210/SD 212/SD 205, SD 425, SD 430, SD 450, SD 617, SD 625, SD 650/52, SD 808, SD 810, SD 820, SD 820A, SD 835, SD 845, SD 850, and SDX20, in a QuRT API function, an untrusted pointer dereference can occur.
{
"affected": [],
"aliases": [
"CVE-2016-10487"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-04-18T14:29:00Z",
"severity": "CRITICAL"
},
"details": "In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Automobile, Snapdragon Mobile, and Snapdragon Wear MDM9206, MDM9607, MDM9635M, MDM9640, MDM9645, MDM9650, MDM9655, MSM8909W, SD 210/SD 212/SD 205, SD 425, SD 430, SD 450, SD 617, SD 625, SD 650/52, SD 808, SD 810, SD 820, SD 820A, SD 835, SD 845, SD 850, and SDX20, in a QuRT API function, an untrusted pointer dereference can occur.",
"id": "GHSA-mr76-qpg3-4rq3",
"modified": "2022-05-14T03:28:36Z",
"published": "2022-05-14T03:28:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-10487"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/2018-04-01"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/103671"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MRC3-MW9Q-6PG8
Vulnerability from github – Published: 2022-05-14 03:08 – Updated: 2022-05-14 03:08An issue was discovered in ImageMagick 7.0.7. A NULL pointer dereference vulnerability was found in the function LogOpenCLBuildFailure in MagickCore/opencl.c, which allows attackers to cause a denial of service via a crafted file.
{
"affected": [],
"aliases": [
"CVE-2017-18250"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-03-27T03:29:00Z",
"severity": "MODERATE"
},
"details": "An issue was discovered in ImageMagick 7.0.7. A NULL pointer dereference vulnerability was found in the function LogOpenCLBuildFailure in MagickCore/opencl.c, which allows attackers to cause a denial of service via a crafted file.",
"id": "GHSA-mrc3-mw9q-6pg8",
"modified": "2022-05-14T03:08:38Z",
"published": "2022-05-14T03:08:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-18250"
},
{
"type": "WEB",
"url": "https://github.com/ImageMagick/ImageMagick/issues/793"
}
],
"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"
}
]
}
GHSA-MRF4-WFH4-QJ5W
Vulnerability from github – Published: 2025-05-01 15:31 – Updated: 2025-11-03 21:33In the Linux kernel, the following vulnerability has been resolved:
wifi: mac80211: Purge vif txq in ieee80211_do_stop()
After ieee80211_do_stop() SKB from vif's txq could still be processed. Indeed another concurrent vif schedule_and_wake_txq call could cause those packets to be dequeued (see ieee80211_handle_wake_tx_queue()) without checking the sdata current state.
Because vif.drv_priv is now cleared in this function, this could lead to driver crash.
For example in ath12k, ahvif is store in vif.drv_priv. Thus if ath12k_mac_op_tx() is called after ieee80211_do_stop(), ahvif->ah can be NULL, leading the ath12k_warn(ahvif->ah,...) call in this function to trigger the NULL deref below.
Unable to handle kernel paging request at virtual address dfffffc000000001 KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] batman_adv: bat0: Interface deactivated: brbh1337 Mem abort info: ESR = 0x0000000096000004 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x04: level 0 translation fault Data abort info: ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 CM = 0, WnR = 0, TnD = 0, TagAccess = 0 GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [dfffffc000000001] address between user and kernel address ranges Internal error: Oops: 0000000096000004 [#1] SMP CPU: 1 UID: 0 PID: 978 Comm: lbd Not tainted 6.13.0-g633f875b8f1e #114 Hardware name: HW (DT) pstate: 10000005 (nzcV daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : ath12k_mac_op_tx+0x6cc/0x29b8 [ath12k] lr : ath12k_mac_op_tx+0x174/0x29b8 [ath12k] sp : ffffffc086ace450 x29: ffffffc086ace450 x28: 0000000000000000 x27: 1ffffff810d59ca4 x26: ffffff801d05f7c0 x25: 0000000000000000 x24: 000000004000001e x23: ffffff8009ce4926 x22: ffffff801f9c0800 x21: ffffff801d05f7f0 x20: ffffff8034a19f40 x19: 0000000000000000 x18: ffffff801f9c0958 x17: ffffff800bc0a504 x16: dfffffc000000000 x15: ffffffc086ace4f8 x14: ffffff801d05f83c x13: 0000000000000000 x12: ffffffb003a0bf03 x11: 0000000000000000 x10: ffffffb003a0bf02 x9 : ffffff8034a19f40 x8 : ffffff801d05f818 x7 : 1ffffff0069433dc x6 : ffffff8034a19ee0 x5 : ffffff801d05f7f0 x4 : 0000000000000000 x3 : 0000000000000001 x2 : 0000000000000000 x1 : dfffffc000000000 x0 : 0000000000000008 Call trace: ath12k_mac_op_tx+0x6cc/0x29b8 [ath12k] (P) ieee80211_handle_wake_tx_queue+0x16c/0x260 ieee80211_queue_skb+0xeec/0x1d20 ieee80211_tx+0x200/0x2c8 ieee80211_xmit+0x22c/0x338 __ieee80211_subif_start_xmit+0x7e8/0xc60 ieee80211_subif_start_xmit+0xc4/0xee0 __ieee80211_subif_start_xmit_8023.isra.0+0x854/0x17a0 ieee80211_subif_start_xmit_8023+0x124/0x488 dev_hard_start_xmit+0x160/0x5a8 __dev_queue_xmit+0x6f8/0x3120 br_dev_queue_push_xmit+0x120/0x4a8 __br_forward+0xe4/0x2b0 deliver_clone+0x5c/0xd0 br_flood+0x398/0x580 br_dev_xmit+0x454/0x9f8 dev_hard_start_xmit+0x160/0x5a8 __dev_queue_xmit+0x6f8/0x3120 ip6_finish_output2+0xc28/0x1b60 __ip6_finish_output+0x38c/0x638 ip6_output+0x1b4/0x338 ip6_local_out+0x7c/0xa8 ip6_send_skb+0x7c/0x1b0 ip6_push_pending_frames+0x94/0xd0 rawv6_sendmsg+0x1a98/0x2898 inet_sendmsg+0x94/0xe0 __sys_sendto+0x1e4/0x308 __arm64_sys_sendto+0xc4/0x140 do_el0_svc+0x110/0x280 el0_svc+0x20/0x60 el0t_64_sync_handler+0x104/0x138 el0t_64_sync+0x154/0x158
To avoid that, empty vif's txq at ieee80211_do_stop() so no packet could be dequeued after ieee80211_do_stop() (new packets cannot be queued because SDATA_STATE_RUNNING is cleared at this point).
{
"affected": [],
"aliases": [
"CVE-2025-37794"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-01T14:15:43Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: Purge vif txq in ieee80211_do_stop()\n\nAfter ieee80211_do_stop() SKB from vif\u0027s txq could still be processed.\nIndeed another concurrent vif schedule_and_wake_txq call could cause\nthose packets to be dequeued (see ieee80211_handle_wake_tx_queue())\nwithout checking the sdata current state.\n\nBecause vif.drv_priv is now cleared in this function, this could lead to\ndriver crash.\n\nFor example in ath12k, ahvif is store in vif.drv_priv. Thus if\nath12k_mac_op_tx() is called after ieee80211_do_stop(), ahvif-\u003eah can be\nNULL, leading the ath12k_warn(ahvif-\u003eah,...) call in this function to\ntrigger the NULL deref below.\n\n Unable to handle kernel paging request at virtual address dfffffc000000001\n KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]\n batman_adv: bat0: Interface deactivated: brbh1337\n Mem abort info:\n ESR = 0x0000000096000004\n EC = 0x25: DABT (current EL), IL = 32 bits\n SET = 0, FnV = 0\n EA = 0, S1PTW = 0\n FSC = 0x04: level 0 translation fault\n Data abort info:\n ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000\n CM = 0, WnR = 0, TnD = 0, TagAccess = 0\n GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0\n [dfffffc000000001] address between user and kernel address ranges\n Internal error: Oops: 0000000096000004 [#1] SMP\n CPU: 1 UID: 0 PID: 978 Comm: lbd Not tainted 6.13.0-g633f875b8f1e #114\n Hardware name: HW (DT)\n pstate: 10000005 (nzcV daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n pc : ath12k_mac_op_tx+0x6cc/0x29b8 [ath12k]\n lr : ath12k_mac_op_tx+0x174/0x29b8 [ath12k]\n sp : ffffffc086ace450\n x29: ffffffc086ace450 x28: 0000000000000000 x27: 1ffffff810d59ca4\n x26: ffffff801d05f7c0 x25: 0000000000000000 x24: 000000004000001e\n x23: ffffff8009ce4926 x22: ffffff801f9c0800 x21: ffffff801d05f7f0\n x20: ffffff8034a19f40 x19: 0000000000000000 x18: ffffff801f9c0958\n x17: ffffff800bc0a504 x16: dfffffc000000000 x15: ffffffc086ace4f8\n x14: ffffff801d05f83c x13: 0000000000000000 x12: ffffffb003a0bf03\n x11: 0000000000000000 x10: ffffffb003a0bf02 x9 : ffffff8034a19f40\n x8 : ffffff801d05f818 x7 : 1ffffff0069433dc x6 : ffffff8034a19ee0\n x5 : ffffff801d05f7f0 x4 : 0000000000000000 x3 : 0000000000000001\n x2 : 0000000000000000 x1 : dfffffc000000000 x0 : 0000000000000008\n Call trace:\n ath12k_mac_op_tx+0x6cc/0x29b8 [ath12k] (P)\n ieee80211_handle_wake_tx_queue+0x16c/0x260\n ieee80211_queue_skb+0xeec/0x1d20\n ieee80211_tx+0x200/0x2c8\n ieee80211_xmit+0x22c/0x338\n __ieee80211_subif_start_xmit+0x7e8/0xc60\n ieee80211_subif_start_xmit+0xc4/0xee0\n __ieee80211_subif_start_xmit_8023.isra.0+0x854/0x17a0\n ieee80211_subif_start_xmit_8023+0x124/0x488\n dev_hard_start_xmit+0x160/0x5a8\n __dev_queue_xmit+0x6f8/0x3120\n br_dev_queue_push_xmit+0x120/0x4a8\n __br_forward+0xe4/0x2b0\n deliver_clone+0x5c/0xd0\n br_flood+0x398/0x580\n br_dev_xmit+0x454/0x9f8\n dev_hard_start_xmit+0x160/0x5a8\n __dev_queue_xmit+0x6f8/0x3120\n ip6_finish_output2+0xc28/0x1b60\n __ip6_finish_output+0x38c/0x638\n ip6_output+0x1b4/0x338\n ip6_local_out+0x7c/0xa8\n ip6_send_skb+0x7c/0x1b0\n ip6_push_pending_frames+0x94/0xd0\n rawv6_sendmsg+0x1a98/0x2898\n inet_sendmsg+0x94/0xe0\n __sys_sendto+0x1e4/0x308\n __arm64_sys_sendto+0xc4/0x140\n do_el0_svc+0x110/0x280\n el0_svc+0x20/0x60\n el0t_64_sync_handler+0x104/0x138\n el0t_64_sync+0x154/0x158\n\nTo avoid that, empty vif\u0027s txq at ieee80211_do_stop() so no packet could\nbe dequeued after ieee80211_do_stop() (new packets cannot be queued\nbecause SDATA_STATE_RUNNING is cleared at this point).",
"id": "GHSA-mrf4-wfh4-qj5w",
"modified": "2025-11-03T21:33:46Z",
"published": "2025-05-01T15:31:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37794"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/305741e7e63234cbcf9b5c4e6aeca25ba0834be8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/378677eb8f44621ecc9ce659f7af61e5baa94d81"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5f6863dc407f25fcf23fc857f9ac51756a09ea2c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8bc34db7f771a464ff8f686b6f8d4e04963fec27"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/929ec2c9ad34248ef625e137b6118b6e965797d9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a8df245b5b29f6de98d016dc18e2bb35ec70b0cb"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a932a5ce4eee0cbad20220f950fe7bd3534bcbc9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c74b84544dee27298a71715b3ce2c40d372b5a23"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"
}
],
"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"
}
]
}
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.