248 lines
12 KiB
JSON
248 lines
12 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-23234",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-01-13T15:37:45.988Z",
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"datePublished": "2026-03-04T14:36:38.843Z",
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"dateUpdated": "2026-05-11T22:02:55.136Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-05-11T22:02:55.136Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to avoid UAF in f2fs_write_end_io()\n\nAs syzbot reported an use-after-free issue in f2fs_write_end_io().\n\nIt is caused by below race condition:\n\nloop device\t\t\t\tumount\n- worker_thread\n - loop_process_work\n - do_req_filebacked\n - lo_rw_aio\n - lo_rw_aio_complete\n - blk_mq_end_request\n - blk_update_request\n - f2fs_write_end_io\n - dec_page_count\n - folio_end_writeback\n\t\t\t\t\t- kill_f2fs_super\n\t\t\t\t\t - kill_block_super\n\t\t\t\t\t - f2fs_put_super\n\t\t\t\t\t : free(sbi)\n : get_pages(, F2FS_WB_CP_DATA)\n accessed sbi which is freed\n\nIn kill_f2fs_super(), we will drop all page caches of f2fs inodes before\ncall free(sbi), it guarantee that all folios should end its writeback, so\nit should be safe to access sbi before last folio_end_writeback().\n\nLet's relocate ckpt thread wakeup flow before folio_end_writeback() to\nresolve this issue."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"fs/f2fs/data.c"
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],
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"versions": [
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{
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"version": "e234088758fca3a669ebb1a02d8bf7bf60f0e4ff",
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"lessThan": "0fb58aff0dafd6837cc91f4154f3ed6e020358fa",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e234088758fca3a669ebb1a02d8bf7bf60f0e4ff",
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"lessThan": "2f67ff1e15a8a4d0e4ffc6564ab20d03d7398fe9",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e234088758fca3a669ebb1a02d8bf7bf60f0e4ff",
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"lessThan": "505e1c0530db6152cab3feef8e3e4da3d3e358c9",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e234088758fca3a669ebb1a02d8bf7bf60f0e4ff",
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"lessThan": "acc2c97fc0005846e5cf11b5ba3189fef130c9b3",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e234088758fca3a669ebb1a02d8bf7bf60f0e4ff",
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"lessThan": "cf4a9e1bc8129eb63fda5f8bdcd8d87f0bd76f42",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e234088758fca3a669ebb1a02d8bf7bf60f0e4ff",
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"lessThan": "995030be4ce6338c6ff814583c14166446a64008",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e234088758fca3a669ebb1a02d8bf7bf60f0e4ff",
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"lessThan": "a42f99be8a16b32a0bb91bb6dda212a6ad61be5d",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e234088758fca3a669ebb1a02d8bf7bf60f0e4ff",
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"lessThan": "ce2739e482bce8d2c014d76c4531c877f382aa54",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"fs/f2fs/data.c"
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],
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"versions": [
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{
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"version": "3.13",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "3.13",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.251",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.201",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.164",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.127",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.74",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.13",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.19.3",
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"lessThanOrEqual": "6.19.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.0",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.13",
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"versionEndExcluding": "5.10.251"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.13",
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"versionEndExcluding": "5.15.201"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.13",
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"versionEndExcluding": "6.1.164"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.13",
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"versionEndExcluding": "6.6.127"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.13",
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"versionEndExcluding": "6.12.74"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.13",
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"versionEndExcluding": "6.18.13"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.13",
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"versionEndExcluding": "6.19.3"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.13",
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"versionEndExcluding": "7.0"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/0fb58aff0dafd6837cc91f4154f3ed6e020358fa"
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},
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{
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"url": "https://git.kernel.org/stable/c/2f67ff1e15a8a4d0e4ffc6564ab20d03d7398fe9"
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},
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{
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"url": "https://git.kernel.org/stable/c/505e1c0530db6152cab3feef8e3e4da3d3e358c9"
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},
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{
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"url": "https://git.kernel.org/stable/c/acc2c97fc0005846e5cf11b5ba3189fef130c9b3"
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},
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{
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"url": "https://git.kernel.org/stable/c/cf4a9e1bc8129eb63fda5f8bdcd8d87f0bd76f42"
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},
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{
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"url": "https://git.kernel.org/stable/c/995030be4ce6338c6ff814583c14166446a64008"
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},
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{
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"url": "https://git.kernel.org/stable/c/a42f99be8a16b32a0bb91bb6dda212a6ad61be5d"
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},
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{
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"url": "https://git.kernel.org/stable/c/ce2739e482bce8d2c014d76c4531c877f382aa54"
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}
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],
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"title": "f2fs: fix to avoid UAF in f2fs_write_end_io()",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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}
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} |