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vuln-cve/data/2024/40xxx/CVE-2024-40914.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2024-40914",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2024-07-12T12:17:45.581Z",
"datePublished": "2024-07-12T12:24:58.055Z",
"dateUpdated": "2026-05-23T15:50:52.644Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-05-23T15:50:52.644Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/huge_memory: don't unpoison huge_zero_folio\n\nWhen I did memory failure tests recently, below panic occurs:\n\n kernel BUG at include/linux/mm.h:1135!\n invalid opcode: 0000 [#1] PREEMPT SMP NOPTI\n CPU: 9 PID: 137 Comm: kswapd1 Not tainted 6.9.0-rc4-00491-gd5ce28f156fe-dirty #14\n RIP: 0010:shrink_huge_zero_page_scan+0x168/0x1a0\n RSP: 0018:ffff9933c6c57bd0 EFLAGS: 00000246\n RAX: 000000000000003e RBX: 0000000000000000 RCX: ffff88f61fc5c9c8\n RDX: 0000000000000000 RSI: 0000000000000027 RDI: ffff88f61fc5c9c0\n RBP: ffffcd7c446b0000 R08: ffffffff9a9405f0 R09: 0000000000005492\n R10: 00000000000030ea R11: ffffffff9a9405f0 R12: 0000000000000000\n R13: 0000000000000000 R14: 0000000000000000 R15: ffff88e703c4ac00\n FS: 0000000000000000(0000) GS:ffff88f61fc40000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 000055f4da6e9878 CR3: 0000000c71048000 CR4: 00000000000006f0\n Call Trace:\n <TASK>\n do_shrink_slab+0x14f/0x6a0\n shrink_slab+0xca/0x8c0\n shrink_node+0x2d0/0x7d0\n balance_pgdat+0x33a/0x720\n kswapd+0x1f3/0x410\n kthread+0xd5/0x100\n ret_from_fork+0x2f/0x50\n ret_from_fork_asm+0x1a/0x30\n </TASK>\n Modules linked in: mce_inject hwpoison_inject\n ---[ end trace 0000000000000000 ]---\n RIP: 0010:shrink_huge_zero_page_scan+0x168/0x1a0\n RSP: 0018:ffff9933c6c57bd0 EFLAGS: 00000246\n RAX: 000000000000003e RBX: 0000000000000000 RCX: ffff88f61fc5c9c8\n RDX: 0000000000000000 RSI: 0000000000000027 RDI: ffff88f61fc5c9c0\n RBP: ffffcd7c446b0000 R08: ffffffff9a9405f0 R09: 0000000000005492\n R10: 00000000000030ea R11: ffffffff9a9405f0 R12: 0000000000000000\n R13: 0000000000000000 R14: 0000000000000000 R15: ffff88e703c4ac00\n FS: 0000000000000000(0000) GS:ffff88f61fc40000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 000055f4da6e9878 CR3: 0000000c71048000 CR4: 00000000000006f0\n\nThe root cause is that HWPoison flag will be set for huge_zero_folio\nwithout increasing the folio refcnt. But then unpoison_memory() will\ndecrease the folio refcnt unexpectedly as it appears like a successfully\nhwpoisoned folio leading to VM_BUG_ON_PAGE(page_ref_count(page) == 0) when\nreleasing huge_zero_folio.\n\nSkip unpoisoning huge_zero_folio in unpoison_memory() to fix this issue. \nWe're not prepared to unpoison huge_zero_folio yet."
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"mm/memory-failure.c"
],
"versions": [
{
"version": "f8f836100fff594cea8a0a027affb9d5520f09a7",
"lessThan": "688bb46ad339497b5b7f527b6636d2afe04b46af",
"status": "affected",
"versionType": "git"
},
{
"version": "478d134e9506c7e9bfe2830ed03dd85e97966313",
"lessThan": "b2494506f30675245a3e6787281f79601af087bf",
"status": "affected",
"versionType": "git"
},
{
"version": "478d134e9506c7e9bfe2830ed03dd85e97966313",
"lessThan": "0d73477af964dbd7396163a13817baf13940bca9",
"status": "affected",
"versionType": "git"
},
{
"version": "478d134e9506c7e9bfe2830ed03dd85e97966313",
"lessThan": "d72b7711919de49d92a67dfc844a6cf4c23dd794",
"status": "affected",
"versionType": "git"
},
{
"version": "478d134e9506c7e9bfe2830ed03dd85e97966313",
"lessThan": "fe6f86f4b40855a130a19aa589f9ba7f650423f4",
"status": "affected",
"versionType": "git"
},
{
"version": "13d9b8cd12f37d133b07ea5b323583e8a0c6b738",
"status": "affected",
"versionType": "git"
},
{
"version": "5.15.41",
"lessThan": "5.15.162",
"status": "affected",
"versionType": "semver"
},
{
"version": "5.17.9",
"lessThan": "5.18",
"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-failure.c"
],
"versions": [
{
"version": "5.18",
"status": "affected"
},
{
"version": "0",
"lessThan": "5.18",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.162",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.95",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.35",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.9.6",
"lessThanOrEqual": "6.9.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.10",
"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": "5.15.41",
"versionEndExcluding": "5.15.162"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.18",
"versionEndExcluding": "6.1.95"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.18",
"versionEndExcluding": "6.6.35"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.18",
"versionEndExcluding": "6.9.6"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.18",
"versionEndExcluding": "6.10"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.17.9"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/688bb46ad339497b5b7f527b6636d2afe04b46af"
},
{
"url": "https://git.kernel.org/stable/c/b2494506f30675245a3e6787281f79601af087bf"
},
{
"url": "https://git.kernel.org/stable/c/0d73477af964dbd7396163a13817baf13940bca9"
},
{
"url": "https://git.kernel.org/stable/c/d72b7711919de49d92a67dfc844a6cf4c23dd794"
},
{
"url": "https://git.kernel.org/stable/c/fe6f86f4b40855a130a19aa589f9ba7f650423f4"
}
],
"title": "mm/huge_memory: don't unpoison huge_zero_folio",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"adp": [
{
"title": "CVE Program Container",
"references": [
{
"url": "https://git.kernel.org/stable/c/688bb46ad339497b5b7f527b6636d2afe04b46af",
"tags": [
"x_transferred"
]
},
{
"url": "https://git.kernel.org/stable/c/b2494506f30675245a3e6787281f79601af087bf",
"tags": [
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{
"url": "https://git.kernel.org/stable/c/0d73477af964dbd7396163a13817baf13940bca9",
"tags": [
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"url": "https://git.kernel.org/stable/c/d72b7711919de49d92a67dfc844a6cf4c23dd794",
"tags": [
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{
"url": "https://git.kernel.org/stable/c/fe6f86f4b40855a130a19aa589f9ba7f650423f4",
"tags": [
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]
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
}
],
"providerMetadata": {
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE",
"dateUpdated": "2025-11-03T21:57:44.975Z"
}
},
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"id": "CVE-2024-40914",
"role": "CISA Coordinator",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2024-09-10T17:05:52.834846Z"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2024-09-11T17:34:39.386Z"
}
}
]
}
}
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