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vuln-cve/data/2025/21xxx/CVE-2025-21931.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2025-21931",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2024-12-29T08:45:45.789Z",
"datePublished": "2025-04-01T15:41:01.055Z",
"dateUpdated": "2026-05-23T15:57:27.859Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-05-23T15:57:27.859Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwpoison, memory_hotplug: lock folio before unmap hwpoisoned folio\n\nCommit b15c87263a69 (\"hwpoison, memory_hotplug: allow hwpoisoned pages to\nbe offlined) add page poison checks in do_migrate_range in order to make\noffline hwpoisoned page possible by introducing isolate_lru_page and\ntry_to_unmap for hwpoisoned page. However folio lock must be held before\ncalling try_to_unmap. Add it to fix this problem.\n\nWarning will be produced if folio is not locked during unmap:\n\n ------------[ cut here ]------------\n kernel BUG at ./include/linux/swapops.h:400!\n Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP\n Modules linked in:\n CPU: 4 UID: 0 PID: 411 Comm: bash Tainted: G W 6.13.0-rc1-00016-g3c434c7ee82a-dirty #41\n Tainted: [W]=WARN\n Hardware name: QEMU QEMU Virtual Machine, BIOS 0.0.0 02/06/2015\n pstate: 40400005 (nZcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n pc : try_to_unmap_one+0xb08/0xd3c\n lr : try_to_unmap_one+0x3dc/0xd3c\n Call trace:\n try_to_unmap_one+0xb08/0xd3c (P)\n try_to_unmap_one+0x3dc/0xd3c (L)\n rmap_walk_anon+0xdc/0x1f8\n rmap_walk+0x3c/0x58\n try_to_unmap+0x88/0x90\n unmap_poisoned_folio+0x30/0xa8\n do_migrate_range+0x4a0/0x568\n offline_pages+0x5a4/0x670\n memory_block_action+0x17c/0x374\n memory_subsys_offline+0x3c/0x78\n device_offline+0xa4/0xd0\n state_store+0x8c/0xf0\n dev_attr_store+0x18/0x2c\n sysfs_kf_write+0x44/0x54\n kernfs_fop_write_iter+0x118/0x1a8\n vfs_write+0x3a8/0x4bc\n ksys_write+0x6c/0xf8\n __arm64_sys_write+0x1c/0x28\n invoke_syscall+0x44/0x100\n el0_svc_common.constprop.0+0x40/0xe0\n do_el0_svc+0x1c/0x28\n el0_svc+0x30/0xd0\n el0t_64_sync_handler+0xc8/0xcc\n el0t_64_sync+0x198/0x19c\n Code: f9407be0 b5fff320 d4210000 17ffff97 (d4210000)\n ---[ end trace 0000000000000000 ]---"
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"mm/memory_hotplug.c"
],
"versions": [
{
"version": "b15c87263a69272423771118c653e9a1d0672caa",
"lessThan": "3926b572fd073491bde13ec42ee08ac1b337bf4d",
"status": "affected",
"versionType": "git"
},
{
"version": "b15c87263a69272423771118c653e9a1d0672caa",
"lessThan": "93df6da64b004f75d307ed08d3f0f1020280d339",
"status": "affected",
"versionType": "git"
},
{
"version": "b15c87263a69272423771118c653e9a1d0672caa",
"lessThan": "576a2f4c437c19bec7d05d05b5990f178d2b0f40",
"status": "affected",
"versionType": "git"
},
{
"version": "b15c87263a69272423771118c653e9a1d0672caa",
"lessThan": "629dfc6ba5431056701d4e44830f3409b989955a",
"status": "affected",
"versionType": "git"
},
{
"version": "b15c87263a69272423771118c653e9a1d0672caa",
"lessThan": "af288a426c3e3552b62595c6138ec6371a17dbba",
"status": "affected",
"versionType": "git"
},
{
"version": "85ef35ab972b7484f41c3bb2bbc79de212e19129",
"status": "affected",
"versionType": "git"
},
{
"version": "060853fdd434ce620dd1dd7619ede834bd33b9d0",
"status": "affected",
"versionType": "git"
},
{
"version": "cb1206e85df291fefde27401190329e26996c54c",
"status": "affected",
"versionType": "git"
},
{
"version": "2c25071bed4b1f9c4cfb10a7914847d7069794bf",
"status": "affected",
"versionType": "git"
},
{
"version": "2c87072a3bf9bbcd747618bb2ccc3cd0da181db6",
"status": "affected",
"versionType": "git"
},
{
"version": "a2b977e3d9e4298d28ebe5cfff9e0859b74a7ac7",
"status": "affected",
"versionType": "git"
},
{
"version": "3.16.65",
"lessThan": "3.17",
"status": "affected",
"versionType": "semver"
},
{
"version": "4.4.170",
"lessThan": "4.5",
"status": "affected",
"versionType": "semver"
},
{
"version": "4.9.150",
"lessThan": "4.10",
"status": "affected",
"versionType": "semver"
},
{
"version": "4.14.93",
"lessThan": "4.15",
"status": "affected",
"versionType": "semver"
},
{
"version": "4.19.15",
"lessThan": "4.20",
"status": "affected",
"versionType": "semver"
},
{
"version": "4.20.2",
"lessThan": "4.21",
"status": "affected",
"versionType": "semver"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"mm/memory_hotplug.c"
],
"versions": [
{
"version": "5.0",
"status": "affected"
},
{
"version": "0",
"lessThan": "5.0",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.140",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.92",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12.19",
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.13.7",
"lessThanOrEqual": "6.13.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.14",
"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": "5.0",
"versionEndExcluding": "6.1.140"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.0",
"versionEndExcluding": "6.6.92"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.0",
"versionEndExcluding": "6.12.19"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.0",
"versionEndExcluding": "6.13.7"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.0",
"versionEndExcluding": "6.14"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.16.65"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.4.170"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.9.150"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.14.93"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.19.15"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.20.2"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/3926b572fd073491bde13ec42ee08ac1b337bf4d"
},
{
"url": "https://git.kernel.org/stable/c/93df6da64b004f75d307ed08d3f0f1020280d339"
},
{
"url": "https://git.kernel.org/stable/c/576a2f4c437c19bec7d05d05b5990f178d2b0f40"
},
{
"url": "https://git.kernel.org/stable/c/629dfc6ba5431056701d4e44830f3409b989955a"
},
{
"url": "https://git.kernel.org/stable/c/af288a426c3e3552b62595c6138ec6371a17dbba"
}
],
"title": "hwpoison, memory_hotplug: lock folio before unmap hwpoisoned folio",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"adp": [
{
"title": "CVE Program Container",
"references": [
{
"url": "https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html"
}
],
"providerMetadata": {
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE",
"dateUpdated": "2025-11-03T19:39:27.919Z"
}
}
]
}
}
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