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vuln-cve/data/2025/68xxx/CVE-2025-68265.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2025-68265",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2025-12-16T13:41:40.268Z",
"datePublished": "2025-12-16T14:47:05.303Z",
"dateUpdated": "2026-11-10T12:38:02.068Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-08-05T12:10:35.899Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme: fix admin request_queue lifetime\n\nThe namespaces can access the controller's admin request_queue, and\nstale references on the namespaces may exist after tearing down the\ncontroller. Ensure the admin request_queue is active by moving the\ncontroller's 'put' to after all controller references have been released\nto ensure no one is can access the request_queue. This fixes a reported\nuse-after-free bug:\n\n BUG: KASAN: slab-use-after-free in blk_queue_enter+0x41c/0x4a0\n Read of size 8 at addr ffff88c0a53819f8 by task nvme/3287\n CPU: 67 UID: 0 PID: 3287 Comm: nvme Tainted: G E 6.13.2-ga1582f1a031e #15\n Tainted: [E]=UNSIGNED_MODULE\n Hardware name: Jabil /EGS 2S MB1, BIOS 1.00 06/18/2025\n Call Trace:\n <TASK>\n dump_stack_lvl+0x4f/0x60\n print_report+0xc4/0x620\n ? _raw_spin_lock_irqsave+0x70/0xb0\n ? _raw_read_unlock_irqrestore+0x30/0x30\n ? blk_queue_enter+0x41c/0x4a0\n kasan_report+0xab/0xe0\n ? blk_queue_enter+0x41c/0x4a0\n blk_queue_enter+0x41c/0x4a0\n ? __irq_work_queue_local+0x75/0x1d0\n ? blk_queue_start_drain+0x70/0x70\n ? irq_work_queue+0x18/0x20\n ? vprintk_emit.part.0+0x1cc/0x350\n ? wake_up_klogd_work_func+0x60/0x60\n blk_mq_alloc_request+0x2b7/0x6b0\n ? __blk_mq_alloc_requests+0x1060/0x1060\n ? __switch_to+0x5b7/0x1060\n nvme_submit_user_cmd+0xa9/0x330\n nvme_user_cmd.isra.0+0x240/0x3f0\n ? force_sigsegv+0xe0/0xe0\n ? nvme_user_cmd64+0x400/0x400\n ? vfs_fileattr_set+0x9b0/0x9b0\n ? cgroup_update_frozen_flag+0x24/0x1c0\n ? cgroup_leave_frozen+0x204/0x330\n ? nvme_ioctl+0x7c/0x2c0\n blkdev_ioctl+0x1a8/0x4d0\n ? blkdev_common_ioctl+0x1930/0x1930\n ? fdget+0x54/0x380\n __x64_sys_ioctl+0x129/0x190\n do_syscall_64+0x5b/0x160\n entry_SYSCALL_64_after_hwframe+0x4b/0x53\n RIP: 0033:0x7f765f703b0b\n Code: ff ff ff 85 c0 79 9b 49 c7 c4 ff ff ff ff 5b 5d 4c 89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d dd 52 0f 00 f7 d8 64 89 01 48\n RSP: 002b:00007ffe2cefe808 EFLAGS: 00000202 ORIG_RAX: 0000000000000010\n RAX: ffffffffffffffda RBX: 00007ffe2cefe860 RCX: 00007f765f703b0b\n RDX: 00007ffe2cefe860 RSI: 00000000c0484e41 RDI: 0000000000000003\n RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000000\n R10: 00007f765f611d50 R11: 0000000000000202 R12: 0000000000000003\n R13: 00000000c0484e41 R14: 0000000000000001 R15: 00007ffe2cefea60\n </TASK>"
}
],
"metrics": [
{
"cvssV3_1": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"baseScore": 7.8,
"baseSeverity": "HIGH"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - Exploitation requires issuing an NVMe admin ioctl through a retained local namespace or controller file descriptor. A remote NVMe-oF peer can induce teardown, but cannot independently perform the stale-FD ioctl.\nAC:L - The attacker can retain the file descriptor across controller teardown and trigger the UAF afterward, so no narrow race must be won. Teardown can also be induced predictably in NVMe/TCP deployments through controlled connection failure.\nPR:L - A basic local user with access to the NVMe device can use an Identify admin command, which nvme_cmd_allowed() permits without CAP_SYS_ADMIN. User-namespace capabilities are therefore unnecessary.\nUI:N - No victim action is required once the attacker has opened the device; controller teardown may occur automatically or be attacker-influenced.\nS:U - The UAF compromises the same host kernel security authority containing the vulnerable NVMe and block-layer code. It does not inherently cross a VM, IOMMU, or equivalent boundary.\nC:H - The stale request_queue can be reclaimed and reused, allowing subsequent queue and request processing to access attacker-influenced freed-object contents. As a kernel UAF, this can plausibly provide information-disclosure primitives.\nI:H - Queue entry increments a refcount through the stale object, and successful reuse can drive request initialization through an unrelated queue and corrupt kernel memory. This is plausibly exploitable for arbitrary modification or control-flow hijacking.\nA:H - The reported UAF occurs in blk_queue_enter() and can cause an oops, panic, hang, or broader memory corruption. The retained stale descriptor permits repeated triggering."
}
]
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/nvme/host/core.c"
],
"versions": [
{
"version": "fe60e8c534118a288cd251a59d747cbf5c03e160",
"lessThan": "4896491c497226022626c3acc46044fd182f943c",
"status": "affected",
"versionType": "git"
},
{
"version": "fe60e8c534118a288cd251a59d747cbf5c03e160",
"lessThan": "a505f0ba36ab24176c300d7ff56aff85c2977e6c",
"status": "affected",
"versionType": "git"
},
{
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"lessThan": "e8061d02b49c5c901980f58d91e96580e9a14acf",
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{
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"status": "affected",
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},
{
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"lessThan": "03b3bcd319b3ab5182bc9aaa0421351572c78ac0",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/nvme/host/core.c"
],
"versions": [
{
"version": "6.1",
"status": "affected"
},
{
"version": "0",
"lessThan": "6.1",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.168",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.120",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12.62",
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.17.12",
"lessThanOrEqual": "6.17.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.18",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.1",
"versionEndExcluding": "6.1.168"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.1",
"versionEndExcluding": "6.6.120"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.1",
"versionEndExcluding": "6.12.62"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.1",
"versionEndExcluding": "6.17.12"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.1",
"versionEndExcluding": "6.18"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/4896491c497226022626c3acc46044fd182f943c"
},
{
"url": "https://git.kernel.org/stable/c/a505f0ba36ab24176c300d7ff56aff85c2977e6c"
},
{
"url": "https://git.kernel.org/stable/c/e8061d02b49c5c901980f58d91e96580e9a14acf"
},
{
"url": "https://git.kernel.org/stable/c/e7dac681790556c131854b97551337aa8042215b"
},
{
"url": "https://git.kernel.org/stable/c/03b3bcd319b3ab5182bc9aaa0421351572c78ac0"
}
],
"title": "nvme: fix admin request_queue lifetime",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"adp": [
{
"x_adpType": "supplier",
"providerMetadata": {
"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"shortName": "siemens-SADP",
"dateUpdated": "2026-11-10T12:38:02.068Z"
},
"affected": [
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)",
"versions": [
{
"status": "affected",
"version": "V3.1.6",
"lessThan": "*",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
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"versions": [
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{
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},
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"id": "CVE-2025-68265",
"role": "CISA Coordinator",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"version": "2.0.3",
"timestamp": "2026-10-15T22:00:38.242498Z"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-10-15T22:02:48.507Z"
}
}
]
}
}
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