{"id":"CVE-2026-89833","state":"PUBLISHED","title":"f2fs: fix to avoid potential deadloop in f2fs_fsync_node_pages()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to avoid potential deadloop in f2fs_fsync_node_pages()\n\nThere is potential deadloop in race condition:\n\nThread A\t\t\t\tThread B\n- fsync\n - f2fs_do_sync_file\n  - f2fs_fsync_node_pages\n   - last_fsync_dnode\n    - folio_get(last_folio)\n\t\t\t\t\t- f2fs_setattr\n\t\t\t\t\t - f2fs_truncate\n\t\t\t\t\t  - f2fs_truncate_blocks\n\t\t\t\t\t   - f2fs_do_truncate_blocks\n\t\t\t\t\t    - f2fs_truncate_inode_blocks\n\t\t\t\t\t     - truncate_dnode\n\t\t\t\t\t      - truncate_node\n\t\t\t\t\t       - invalidate_mapping_pages\n\t\t\t\t\t        - folio->mapping = NULL\n   - is_node_folio alwasy return false\n   - atomic && !marked is always true,\n     then goto retry","publishedAt":"2026-09-16T10:31:05.680Z","updatedAt":"2026-10-30T12:33:12.025Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"608514deba38c8611ad330d6a3c8e2b9a1f68e4b","status":"affected","lessThan":"64a47dc8286ff98d8c231ae035bdfe16be1b93bf","versionType":"git"},{"version":"608514deba38c8611ad330d6a3c8e2b9a1f68e4b","status":"affected","lessThan":"58ca9f06480457eb9c9513e1ae2b75316d4ed1e5","versionType":"git"},{"version":"608514deba38c8611ad330d6a3c8e2b9a1f68e4b","status":"affected","lessThan":"bdc06381d590ad5833ee7a2c56b8b685d80ee9b5","versionType":"git"},{"version":"608514deba38c8611ad330d6a3c8e2b9a1f68e4b","status":"affected","lessThan":"161513f53e4ac90fd356433bdf8e31e6adeb92af","versionType":"git"},{"version":"608514deba38c8611ad330d6a3c8e2b9a1f68e4b","status":"affected","lessThan":"905411f6504876d268ba8dafc8e75367782da4b7","versionType":"git"},{"version":"608514deba38c8611ad330d6a3c8e2b9a1f68e4b","status":"affected","lessThan":"ce366bfa821ec81dd45bde547ee31e659306cc61","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/f2fs/node.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.7","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.7","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.114","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.51","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.5","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/f2fs/node.c"]}],"references":["https://git.kernel.org/stable/c/64a47dc8286ff98d8c231ae035bdfe16be1b93bf","https://git.kernel.org/stable/c/58ca9f06480457eb9c9513e1ae2b75316d4ed1e5","https://git.kernel.org/stable/c/bdc06381d590ad5833ee7a2c56b8b685d80ee9b5","https://git.kernel.org/stable/c/161513f53e4ac90fd356433bdf8e31e6adeb92af","https://git.kernel.org/stable/c/905411f6504876d268ba8dafc8e75367782da4b7","https://git.kernel.org/stable/c/ce366bfa821ec81dd45bde547ee31e659306cc61"],"weaknesses":[],"ingestedAt":"2026-10-30T12:52:04.348Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/89xxx/CVE-2026-89833.json","commit":"1f312381e38164a43607eebab851b151dd16861e","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-89833","state":"PUBLISHED","datePublished":"2026-09-16T10:31:05.680Z","dateUpdated":"2026-10-30T12:33:12.025Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-11T19:38:34.769Z"},"containers":{"cna":{"title":"f2fs: fix to avoid potential deadloop in f2fs_fsync_node_pages()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to avoid potential deadloop in f2fs_fsync_node_pages()\n\nThere is potential deadloop in race condition:\n\nThread A\t\t\t\tThread B\n- fsync\n - f2fs_do_sync_file\n  - f2fs_fsync_node_pages\n   - last_fsync_dnode\n    - folio_get(last_folio)\n\t\t\t\t\t- f2fs_setattr\n\t\t\t\t\t - f2fs_truncate\n\t\t\t\t\t  - f2fs_truncate_blocks\n\t\t\t\t\t   - f2fs_do_truncate_blocks\n\t\t\t\t\t    - f2fs_truncate_inode_blocks\n\t\t\t\t\t     - truncate_dnode\n\t\t\t\t\t      - truncate_node\n\t\t\t\t\t       - invalidate_mapping_pages\n\t\t\t\t\t        - folio->mapping = NULL\n   - is_node_folio alwasy return false\n   - atomic && !marked is always true,\n     then goto retry"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"608514deba38c8611ad330d6a3c8e2b9a1f68e4b","status":"affected","lessThan":"64a47dc8286ff98d8c231ae035bdfe16be1b93bf","versionType":"git"},{"version":"608514deba38c8611ad330d6a3c8e2b9a1f68e4b","status":"affected","lessThan":"58ca9f06480457eb9c9513e1ae2b75316d4ed1e5","versionType":"git"},{"version":"608514deba38c8611ad330d6a3c8e2b9a1f68e4b","status":"affected","lessThan":"bdc06381d590ad5833ee7a2c56b8b685d80ee9b5","versionType":"git"},{"version":"608514deba38c8611ad330d6a3c8e2b9a1f68e4b","status":"affected","lessThan":"161513f53e4ac90fd356433bdf8e31e6adeb92af","versionType":"git"},{"version":"608514deba38c8611ad330d6a3c8e2b9a1f68e4b","status":"affected","lessThan":"905411f6504876d268ba8dafc8e75367782da4b7","versionType":"git"},{"version":"608514deba38c8611ad330d6a3c8e2b9a1f68e4b","status":"affected","lessThan":"ce366bfa821ec81dd45bde547ee31e659306cc61","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/f2fs/node.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.7","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.7","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.114","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.51","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.5","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/f2fs/node.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/64a47dc8286ff98d8c231ae035bdfe16be1b93bf"},{"url":"https://git.kernel.org/stable/c/58ca9f06480457eb9c9513e1ae2b75316d4ed1e5"},{"url":"https://git.kernel.org/stable/c/bdc06381d590ad5833ee7a2c56b8b685d80ee9b5"},{"url":"https://git.kernel.org/stable/c/161513f53e4ac90fd356433bdf8e31e6adeb92af"},{"url":"https://git.kernel.org/stable/c/905411f6504876d268ba8dafc8e75367782da4b7"},{"url":"https://git.kernel.org/stable/c/ce366bfa821ec81dd45bde547ee31e659306cc61"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-30T12:33:12.025Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"6.1.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"6.12.114"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"6.18.51"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"7.2.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}