{"api_version":"1","generated_at":"2026-08-21T00:31:25+00:00","cve":"CVE-2022-50753","urls":{"html":"https://cve.report/CVE-2022-50753","api":"https://cve.report/api/cve/CVE-2022-50753.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2022-50753","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2022-50753"},"summary":{"title":"f2fs: fix to do sanity check on summary info","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to do sanity check on summary info\n\nAs Wenqing Liu reported in bugzilla:\n\nhttps://bugzilla.kernel.org/show_bug.cgi?id=216456\n\nBUG: KASAN: use-after-free in recover_data+0x63ae/0x6ae0 [f2fs]\nRead of size 4 at addr ffff8881464dcd80 by task mount/1013\n\nCPU: 3 PID: 1013 Comm: mount Tainted: G        W          6.0.0-rc4 #1\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014\nCall Trace:\n dump_stack_lvl+0x45/0x5e\n print_report.cold+0xf3/0x68d\n kasan_report+0xa8/0x130\n recover_data+0x63ae/0x6ae0 [f2fs]\n f2fs_recover_fsync_data+0x120d/0x1fc0 [f2fs]\n f2fs_fill_super+0x4665/0x61e0 [f2fs]\n mount_bdev+0x2cf/0x3b0\n legacy_get_tree+0xed/0x1d0\n vfs_get_tree+0x81/0x2b0\n path_mount+0x47e/0x19d0\n do_mount+0xce/0xf0\n __x64_sys_mount+0x12c/0x1a0\n do_syscall_64+0x38/0x90\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nThe root cause is: in fuzzed image, SSA table is corrupted: ofs_in_node\nis larger than ADDRS_PER_PAGE(), result in out-of-range access on 4k-size\npage.\n\n- recover_data\n - do_recover_data\n  - check_index_in_prev_nodes\n   - f2fs_data_blkaddr\n\nThis patch adds sanity check on summary info in recovery and GC flow\nin where the flows rely on them.\n\nAfter patch:\n[   29.310883] F2FS-fs (loop0): Inconsistent ofs_in_node:65286 in summary, ino:0, nid:6, max:1018","state":"PUBLISHED","assigner":"Linux","published_at":"2025-12-24 13:16:02","updated_at":"2026-08-04 10:18:23"},"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:N/UI:R/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","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:N/UI:R/S:U/C:H/I:H/A:H","data":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://git.kernel.org/stable/c/e168f819bfa42459b14f479e55ebd550bcc78899","name":"https://git.kernel.org/stable/c/e168f819bfa42459b14f479e55ebd550bcc78899","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c99860f9a75079f339ed7670425b1ac58f26e2ff","name":"https://git.kernel.org/stable/c/c99860f9a75079f339ed7670425b1ac58f26e2ff","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4a8e8bf280703e04e0b9d91f101e1fdd9a5bd09e","name":"https://git.kernel.org/stable/c/4a8e8bf280703e04e0b9d91f101e1fdd9a5bd09e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c6ad7fd16657ebd34a87a97d9588195aae87597d","name":"https://git.kernel.org/stable/c/c6ad7fd16657ebd34a87a97d9588195aae87597d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0922ad64ccefa3e483e84355942b86e13c8fea68","name":"https://git.kernel.org/stable/c/0922ad64ccefa3e483e84355942b86e13c8fea68","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/73687c53919f49dff3852155621dab7a35c52854","name":"https://git.kernel.org/stable/c/73687c53919f49dff3852155621dab7a35c52854","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-50753","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-50753","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b292dcab068e141d8a820b77cbcc88d98c610eb4 c99860f9a75079f339ed7670425b1ac58f26e2ff git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b292dcab068e141d8a820b77cbcc88d98c610eb4 4a8e8bf280703e04e0b9d91f101e1fdd9a5bd09e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b292dcab068e141d8a820b77cbcc88d98c610eb4 73687c53919f49dff3852155621dab7a35c52854 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b292dcab068e141d8a820b77cbcc88d98c610eb4 e168f819bfa42459b14f479e55ebd550bcc78899 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b292dcab068e141d8a820b77cbcc88d98c610eb4 0922ad64ccefa3e483e84355942b86e13c8fea68 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b292dcab068e141d8a820b77cbcc88d98c610eb4 c6ad7fd16657ebd34a87a97d9588195aae87597d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3.11","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 3.11 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.4.220 5.4.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.150 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.75 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.19.17 5.19.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.0.3 6.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2022","cve_id":"50753","cve":"CVE-2022-50753","epss":"0.001730000","percentile":"0.069150000","score_date":"2026-08-06","updated_at":"2026-08-07 00:14:20"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/f2fs/gc.c","fs/f2fs/recovery.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"c99860f9a75079f339ed7670425b1ac58f26e2ff","status":"affected","version":"b292dcab068e141d8a820b77cbcc88d98c610eb4","versionType":"git"},{"lessThan":"4a8e8bf280703e04e0b9d91f101e1fdd9a5bd09e","status":"affected","version":"b292dcab068e141d8a820b77cbcc88d98c610eb4","versionType":"git"},{"lessThan":"73687c53919f49dff3852155621dab7a35c52854","status":"affected","version":"b292dcab068e141d8a820b77cbcc88d98c610eb4","versionType":"git"},{"lessThan":"e168f819bfa42459b14f479e55ebd550bcc78899","status":"affected","version":"b292dcab068e141d8a820b77cbcc88d98c610eb4","versionType":"git"},{"lessThan":"0922ad64ccefa3e483e84355942b86e13c8fea68","status":"affected","version":"b292dcab068e141d8a820b77cbcc88d98c610eb4","versionType":"git"},{"lessThan":"c6ad7fd16657ebd34a87a97d9588195aae87597d","status":"affected","version":"b292dcab068e141d8a820b77cbcc88d98c610eb4","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["fs/f2fs/gc.c","fs/f2fs/recovery.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.11"},{"lessThan":"3.11","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.4.*","status":"unaffected","version":"5.4.220","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.150","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.75","versionType":"semver"},{"lessThanOrEqual":"5.19.*","status":"unaffected","version":"5.19.17","versionType":"semver"},{"lessThanOrEqual":"6.0.*","status":"unaffected","version":"6.0.3","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.4.220","versionStartIncluding":"3.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.150","versionStartIncluding":"3.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.75","versionStartIncluding":"3.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.19.17","versionStartIncluding":"3.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.0.3","versionStartIncluding":"3.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1","versionStartIncluding":"3.11","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to do sanity check on summary info\n\nAs Wenqing Liu reported in bugzilla:\n\nhttps://bugzilla.kernel.org/show_bug.cgi?id=216456\n\nBUG: KASAN: use-after-free in recover_data+0x63ae/0x6ae0 [f2fs]\nRead of size 4 at addr ffff8881464dcd80 by task mount/1013\n\nCPU: 3 PID: 1013 Comm: mount Tainted: G        W          6.0.0-rc4 #1\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014\nCall Trace:\n dump_stack_lvl+0x45/0x5e\n print_report.cold+0xf3/0x68d\n kasan_report+0xa8/0x130\n recover_data+0x63ae/0x6ae0 [f2fs]\n f2fs_recover_fsync_data+0x120d/0x1fc0 [f2fs]\n f2fs_fill_super+0x4665/0x61e0 [f2fs]\n mount_bdev+0x2cf/0x3b0\n legacy_get_tree+0xed/0x1d0\n vfs_get_tree+0x81/0x2b0\n path_mount+0x47e/0x19d0\n do_mount+0xce/0xf0\n __x64_sys_mount+0x12c/0x1a0\n do_syscall_64+0x38/0x90\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nThe root cause is: in fuzzed image, SSA table is corrupted: ofs_in_node\nis larger than ADDRS_PER_PAGE(), result in out-of-range access on 4k-size\npage.\n\n- recover_data\n - do_recover_data\n  - check_index_in_prev_nodes\n   - f2fs_data_blkaddr\n\nThis patch adds sanity check on summary info in recovery and GC flow\nin where the flows rely on them.\n\nAfter patch:\n[   29.310883] F2FS-fs (loop0): Inconsistent ofs_in_node:65286 in summary, ino:0, nid:6, max:1018"}],"metrics":[{"cvssV3_1":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"}}],"providerMetadata":{"dateUpdated":"2026-08-04T09:09:57.456Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/c99860f9a75079f339ed7670425b1ac58f26e2ff"},{"url":"https://git.kernel.org/stable/c/4a8e8bf280703e04e0b9d91f101e1fdd9a5bd09e"},{"url":"https://git.kernel.org/stable/c/73687c53919f49dff3852155621dab7a35c52854"},{"url":"https://git.kernel.org/stable/c/e168f819bfa42459b14f479e55ebd550bcc78899"},{"url":"https://git.kernel.org/stable/c/0922ad64ccefa3e483e84355942b86e13c8fea68"},{"url":"https://git.kernel.org/stable/c/c6ad7fd16657ebd34a87a97d9588195aae87597d"}],"title":"f2fs: fix to do sanity check on summary info","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2022-50753","datePublished":"2025-12-24T13:05:47.559Z","dateReserved":"2025-12-24T13:02:21.544Z","dateUpdated":"2026-08-04T09:09:57.456Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2025-12-24 13:16:02","lastModifiedDate":"2026-08-04 10:18:23","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:N/UI:R/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2022","CveId":"50753","Ordinal":"1","Title":"f2fs: fix to do sanity check on summary info","CVE":"CVE-2022-50753","Year":"2022"},"notes":[{"CveYear":"2022","CveId":"50753","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to do sanity check on summary info\n\nAs Wenqing Liu reported in bugzilla:\n\nhttps://bugzilla.kernel.org/show_bug.cgi?id=216456\n\nBUG: KASAN: use-after-free in recover_data+0x63ae/0x6ae0 [f2fs]\nRead of size 4 at addr ffff8881464dcd80 by task mount/1013\n\nCPU: 3 PID: 1013 Comm: mount Tainted: G        W          6.0.0-rc4 #1\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014\nCall Trace:\n dump_stack_lvl+0x45/0x5e\n print_report.cold+0xf3/0x68d\n kasan_report+0xa8/0x130\n recover_data+0x63ae/0x6ae0 [f2fs]\n f2fs_recover_fsync_data+0x120d/0x1fc0 [f2fs]\n f2fs_fill_super+0x4665/0x61e0 [f2fs]\n mount_bdev+0x2cf/0x3b0\n legacy_get_tree+0xed/0x1d0\n vfs_get_tree+0x81/0x2b0\n path_mount+0x47e/0x19d0\n do_mount+0xce/0xf0\n __x64_sys_mount+0x12c/0x1a0\n do_syscall_64+0x38/0x90\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nThe root cause is: in fuzzed image, SSA table is corrupted: ofs_in_node\nis larger than ADDRS_PER_PAGE(), result in out-of-range access on 4k-size\npage.\n\n- recover_data\n - do_recover_data\n  - check_index_in_prev_nodes\n   - f2fs_data_blkaddr\n\nThis patch adds sanity check on summary info in recovery and GC flow\nin where the flows rely on them.\n\nAfter patch:\n[   29.310883] F2FS-fs (loop0): Inconsistent ofs_in_node:65286 in summary, ino:0, nid:6, max:1018","Type":"Description","Title":"f2fs: fix to do sanity check on summary info"}]}}}