{"api_version":"1","generated_at":"2026-08-07T00:15:44+00:00","cve":"CVE-2023-53763","urls":{"html":"https://cve.report/CVE-2023-53763","api":"https://cve.report/api/cve/CVE-2023-53763.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2023-53763","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-53763"},"summary":{"title":"Revert \"f2fs: fix to do sanity check on extent cache correctly\"","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRevert \"f2fs: fix to do sanity check on extent cache correctly\"\n\nsyzbot reports a f2fs bug as below:\n\nUBSAN: array-index-out-of-bounds in fs/f2fs/f2fs.h:3275:19\nindex 1409 is out of range for type '__le32[923]' (aka 'unsigned int[923]')\nCall Trace:\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106\n ubsan_epilogue lib/ubsan.c:217 [inline]\n __ubsan_handle_out_of_bounds+0x11c/0x150 lib/ubsan.c:348\n inline_data_addr fs/f2fs/f2fs.h:3275 [inline]\n __recover_inline_status fs/f2fs/inode.c:113 [inline]\n do_read_inode fs/f2fs/inode.c:480 [inline]\n f2fs_iget+0x4730/0x48b0 fs/f2fs/inode.c:604\n f2fs_fill_super+0x640e/0x80c0 fs/f2fs/super.c:4601\n mount_bdev+0x276/0x3b0 fs/super.c:1391\n legacy_get_tree+0xef/0x190 fs/fs_context.c:611\n vfs_get_tree+0x8c/0x270 fs/super.c:1519\n do_new_mount+0x28f/0xae0 fs/namespace.c:3335\n do_mount fs/namespace.c:3675 [inline]\n __do_sys_mount fs/namespace.c:3884 [inline]\n __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3861\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nThe issue was bisected to:\n\ncommit d48a7b3a72f121655d95b5157c32c7d555e44c05\nAuthor: Chao Yu <chao@kernel.org>\nDate:   Mon Jan 9 03:49:20 2023 +0000\n\n    f2fs: fix to do sanity check on extent cache correctly\n\nThe root cause is we applied both v1 and v2 of the patch, v2 is the right\nfix, so it needs to revert v1 in order to fix reported issue.\n\nv1:\ncommit d48a7b3a72f1 (\"f2fs: fix to do sanity check on extent cache correctly\")\nhttps://lore.kernel.org/lkml/20230109034920.492914-1-chao@kernel.org/\n\nv2:\ncommit 269d11948100 (\"f2fs: fix to do sanity check on extent cache correctly\")\nhttps://lore.kernel.org/lkml/20230207134808.1827869-1-chao@kernel.org/","state":"PUBLISHED","assigner":"Linux","published_at":"2025-12-08 02:15:52","updated_at":"2026-08-04 10:19:20"},"problem_types":[],"metrics":[{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://git.kernel.org/stable/c/958ccbbf1ce716d77c7cfa79ace50a421c1eed73","name":"https://git.kernel.org/stable/c/958ccbbf1ce716d77c7cfa79ace50a421c1eed73","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ea35767edc78327c686e21fe1231b668f11be0db","name":"https://git.kernel.org/stable/c/ea35767edc78327c686e21fe1231b668f11be0db","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0d545a8e77cbd1fbad311b18952e38e0f7672ab4","name":"https://git.kernel.org/stable/c/0d545a8e77cbd1fbad311b18952e38e0f7672ab4","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/bbb3cd66301ef752fae2922452660f228d69bcaf","name":"https://git.kernel.org/stable/c/bbb3cd66301ef752fae2922452660f228d69bcaf","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-53763","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-53763","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 85eb8b61dd4cfc7a839a0e86287b92ca6193444e 0d545a8e77cbd1fbad311b18952e38e0f7672ab4 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d48a7b3a72f121655d95b5157c32c7d555e44c05 ea35767edc78327c686e21fe1231b668f11be0db git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d48a7b3a72f121655d95b5157c32c7d555e44c05 bbb3cd66301ef752fae2922452660f228d69bcaf git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d48a7b3a72f121655d95b5157c32c7d555e44c05 958ccbbf1ce716d77c7cfa79ace50a421c1eed73 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a3d1fd01250ffca88c11e9bd8d19be779acc7557 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.1.29 6.1.53 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.2.5 6.3 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.3","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.3 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.53 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.4.16 6.4.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.5.3 6.5.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2023","cve_id":"53763","cve":"CVE-2023-53763","epss":"0.001390000","percentile":"0.037230000","score_date":"2026-08-05","updated_at":"2026-08-06 00:00:37"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/f2fs/inode.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"0d545a8e77cbd1fbad311b18952e38e0f7672ab4","status":"affected","version":"85eb8b61dd4cfc7a839a0e86287b92ca6193444e","versionType":"git"},{"lessThan":"ea35767edc78327c686e21fe1231b668f11be0db","status":"affected","version":"d48a7b3a72f121655d95b5157c32c7d555e44c05","versionType":"git"},{"lessThan":"bbb3cd66301ef752fae2922452660f228d69bcaf","status":"affected","version":"d48a7b3a72f121655d95b5157c32c7d555e44c05","versionType":"git"},{"lessThan":"958ccbbf1ce716d77c7cfa79ace50a421c1eed73","status":"affected","version":"d48a7b3a72f121655d95b5157c32c7d555e44c05","versionType":"git"},{"status":"affected","version":"a3d1fd01250ffca88c11e9bd8d19be779acc7557","versionType":"git"},{"lessThan":"6.1.53","status":"affected","version":"6.1.29","versionType":"semver"},{"lessThan":"6.3","status":"affected","version":"6.2.5","versionType":"semver"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["fs/f2fs/inode.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.3"},{"lessThan":"6.3","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.53","versionType":"semver"},{"lessThanOrEqual":"6.4.*","status":"unaffected","version":"6.4.16","versionType":"semver"},{"lessThanOrEqual":"6.5.*","status":"unaffected","version":"6.5.3","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.6","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.53","versionStartIncluding":"6.1.29","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.4.16","versionStartIncluding":"6.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.5.3","versionStartIncluding":"6.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6","versionStartIncluding":"6.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2.5","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nRevert \"f2fs: fix to do sanity check on extent cache correctly\"\n\nsyzbot reports a f2fs bug as below:\n\nUBSAN: array-index-out-of-bounds in fs/f2fs/f2fs.h:3275:19\nindex 1409 is out of range for type '__le32[923]' (aka 'unsigned int[923]')\nCall Trace:\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106\n ubsan_epilogue lib/ubsan.c:217 [inline]\n __ubsan_handle_out_of_bounds+0x11c/0x150 lib/ubsan.c:348\n inline_data_addr fs/f2fs/f2fs.h:3275 [inline]\n __recover_inline_status fs/f2fs/inode.c:113 [inline]\n do_read_inode fs/f2fs/inode.c:480 [inline]\n f2fs_iget+0x4730/0x48b0 fs/f2fs/inode.c:604\n f2fs_fill_super+0x640e/0x80c0 fs/f2fs/super.c:4601\n mount_bdev+0x276/0x3b0 fs/super.c:1391\n legacy_get_tree+0xef/0x190 fs/fs_context.c:611\n vfs_get_tree+0x8c/0x270 fs/super.c:1519\n do_new_mount+0x28f/0xae0 fs/namespace.c:3335\n do_mount fs/namespace.c:3675 [inline]\n __do_sys_mount fs/namespace.c:3884 [inline]\n __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3861\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nThe issue was bisected to:\n\ncommit d48a7b3a72f121655d95b5157c32c7d555e44c05\nAuthor: Chao Yu <chao@kernel.org>\nDate:   Mon Jan 9 03:49:20 2023 +0000\n\n    f2fs: fix to do sanity check on extent cache correctly\n\nThe root cause is we applied both v1 and v2 of the patch, v2 is the right\nfix, so it needs to revert v1 in order to fix reported issue.\n\nv1:\ncommit d48a7b3a72f1 (\"f2fs: fix to do sanity check on extent cache correctly\")\nhttps://lore.kernel.org/lkml/20230109034920.492914-1-chao@kernel.org/\n\nv2:\ncommit 269d11948100 (\"f2fs: fix to do sanity check on extent cache correctly\")\nhttps://lore.kernel.org/lkml/20230207134808.1827869-1-chao@kernel.org/"}],"metrics":[{"cvssV3_1":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"providerMetadata":{"dateUpdated":"2026-08-04T09:16:27.499Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/0d545a8e77cbd1fbad311b18952e38e0f7672ab4"},{"url":"https://git.kernel.org/stable/c/ea35767edc78327c686e21fe1231b668f11be0db"},{"url":"https://git.kernel.org/stable/c/bbb3cd66301ef752fae2922452660f228d69bcaf"},{"url":"https://git.kernel.org/stable/c/958ccbbf1ce716d77c7cfa79ace50a421c1eed73"}],"title":"Revert \"f2fs: fix to do sanity check on extent cache correctly\"","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2023-53763","datePublished":"2025-12-08T01:19:25.250Z","dateReserved":"2025-12-08T01:18:04.281Z","dateUpdated":"2026-08-04T09:16:27.499Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2025-12-08 02:15:52","lastModifiedDate":"2026-08-04 10:19:20","problem_types":[],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2023","CveId":"53763","Ordinal":"1","Title":"Revert \"f2fs: fix to do sanity check on extent cache correctly\"","CVE":"CVE-2023-53763","Year":"2023"},"notes":[{"CveYear":"2023","CveId":"53763","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nRevert \"f2fs: fix to do sanity check on extent cache correctly\"\n\nsyzbot reports a f2fs bug as below:\n\nUBSAN: array-index-out-of-bounds in fs/f2fs/f2fs.h:3275:19\nindex 1409 is out of range for type '__le32[923]' (aka 'unsigned int[923]')\nCall Trace:\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106\n ubsan_epilogue lib/ubsan.c:217 [inline]\n __ubsan_handle_out_of_bounds+0x11c/0x150 lib/ubsan.c:348\n inline_data_addr fs/f2fs/f2fs.h:3275 [inline]\n __recover_inline_status fs/f2fs/inode.c:113 [inline]\n do_read_inode fs/f2fs/inode.c:480 [inline]\n f2fs_iget+0x4730/0x48b0 fs/f2fs/inode.c:604\n f2fs_fill_super+0x640e/0x80c0 fs/f2fs/super.c:4601\n mount_bdev+0x276/0x3b0 fs/super.c:1391\n legacy_get_tree+0xef/0x190 fs/fs_context.c:611\n vfs_get_tree+0x8c/0x270 fs/super.c:1519\n do_new_mount+0x28f/0xae0 fs/namespace.c:3335\n do_mount fs/namespace.c:3675 [inline]\n __do_sys_mount fs/namespace.c:3884 [inline]\n __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3861\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nThe issue was bisected to:\n\ncommit d48a7b3a72f121655d95b5157c32c7d555e44c05\nAuthor: Chao Yu <chao@kernel.org>\nDate:   Mon Jan 9 03:49:20 2023 +0000\n\n    f2fs: fix to do sanity check on extent cache correctly\n\nThe root cause is we applied both v1 and v2 of the patch, v2 is the right\nfix, so it needs to revert v1 in order to fix reported issue.\n\nv1:\ncommit d48a7b3a72f1 (\"f2fs: fix to do sanity check on extent cache correctly\")\nhttps://lore.kernel.org/lkml/20230109034920.492914-1-chao@kernel.org/\n\nv2:\ncommit 269d11948100 (\"f2fs: fix to do sanity check on extent cache correctly\")\nhttps://lore.kernel.org/lkml/20230207134808.1827869-1-chao@kernel.org/","Type":"Description","Title":"Revert \"f2fs: fix to do sanity check on extent cache correctly\""}]}}}