| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "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" |
| } |
| ] |
| }, |
| { |
| "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" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-40914", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
