227 lines
11 KiB
JSON
227 lines
11 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-2026-68459",
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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": "2026-07-30T09:28:09.395Z",
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"datePublished": "2026-08-15T05:51:19.713Z",
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"dateUpdated": "2026-08-17T05:06:00.080Z"
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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": "2026-08-17T05:06:00.080Z"
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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 potential deadlock in gc_merge path of f2fs_balance_fs()\n\nWhen we mount device w/ gc_merge mount option, we may suffer below\npotential deadlock:\n\nKworker\t\t\t\t\tGC trehad\t\t\tTruncator\n- f2fs_write_cache_pages\n - f2fs_write_single_data_page\n - f2fs_do_write_data_page\n - folio_start_writeback --- set writeback flag on folio\n - f2fs_outplace_write_data\n : cached folio in internal bio cache\n - f2fs_balance_fs\n - wake_up(gc_thread)\n : wake up gc thread to run foreground GC\n - finish_wait(fggc_wq)\n : wait on the waitqueue --- wait on GC thread to finish the work\n\t\t\t\t\t\t\t\t\t- truncate_inode_pages_range\n\t\t\t\t\t\t\t\t\t - __filemap_get_folio(, FGP_LOCK) --- lock folio\n\t\t\t\t\t\t\t\t\t - truncate_inode_partial_folio\n\t\t\t\t\t\t\t\t\t - folio_wait_writeback --- wait on writeback being cleared\n\t\t\t\t\t- do_garbage_collect\n\t\t\t\t\t - move_data_page\n\t\t\t\t\t - f2fs_get_lock_data_folio\n\t\t\t\t\t - lock on folio --- blocked on folio's lock\n\nIn order to avoid such deadlock, let's call below functions to commit\ncached bios in GC_MERGE path of f2fs_balance_fs() as the same as we did\nin NOGC_MERGE path.\n- f2fs_submit_merged_write(sbi, DATA);\n- f2fs_submit_all_merged_ipu_writes(sbi);"
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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/segment.c"
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],
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"versions": [
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{
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"version": "351df4b201157351c7d26bf12c3eeb9dbce98854",
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"lessThan": "8071500a8124e5a6d47d901a8d5ffd91743107a1",
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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": "351df4b201157351c7d26bf12c3eeb9dbce98854",
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"lessThan": "eb02f218aacb36365e0ca2339cbae81fb05d31a5",
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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": "351df4b201157351c7d26bf12c3eeb9dbce98854",
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"lessThan": "1436031b33fa23ab1ce7df5bc5500093413e8acf",
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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": "351df4b201157351c7d26bf12c3eeb9dbce98854",
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"lessThan": "b885c7783c19c36c7bf899492a0bffcd68afa8c7",
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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": "351df4b201157351c7d26bf12c3eeb9dbce98854",
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"lessThan": "89479a27fa4e1e11f378b3724944eabceb84f114",
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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": "351df4b201157351c7d26bf12c3eeb9dbce98854",
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"lessThan": "aa807064473abd6f2cafe419fb77ea402d3e3104",
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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": "351df4b201157351c7d26bf12c3eeb9dbce98854",
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"lessThan": "8b4468ec023d0d1b4669dfb867588997cc03a06b",
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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/segment.c"
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],
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"versions": [
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{
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"version": "3.8",
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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": "3.8",
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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": "5.15.212",
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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": "6.1.178",
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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": "6.6.145",
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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": "6.12.96",
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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": "6.18.39",
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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": "7.1.5",
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"lessThanOrEqual": "7.1.*",
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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": "7.2",
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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": "3.8",
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"versionEndExcluding": "5.15.212"
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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": "3.8",
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"versionEndExcluding": "6.1.178"
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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": "3.8",
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"versionEndExcluding": "6.6.145"
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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": "3.8",
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"versionEndExcluding": "6.12.96"
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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": "3.8",
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"versionEndExcluding": "6.18.39"
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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": "3.8",
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"versionEndExcluding": "7.1.5"
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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": "3.8",
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"versionEndExcluding": "7.2"
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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/8071500a8124e5a6d47d901a8d5ffd91743107a1"
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},
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{
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"url": "https://git.kernel.org/stable/c/eb02f218aacb36365e0ca2339cbae81fb05d31a5"
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},
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{
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"url": "https://git.kernel.org/stable/c/1436031b33fa23ab1ce7df5bc5500093413e8acf"
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},
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{
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"url": "https://git.kernel.org/stable/c/b885c7783c19c36c7bf899492a0bffcd68afa8c7"
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},
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{
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"url": "https://git.kernel.org/stable/c/89479a27fa4e1e11f378b3724944eabceb84f114"
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},
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{
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"url": "https://git.kernel.org/stable/c/aa807064473abd6f2cafe419fb77ea402d3e3104"
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},
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{
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"url": "https://git.kernel.org/stable/c/8b4468ec023d0d1b4669dfb867588997cc03a06b"
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}
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],
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"title": "f2fs: fix potential deadlock in gc_merge path of f2fs_balance_fs()",
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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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} |