{"api_version":"1","generated_at":"2026-05-12T18:11:29+00:00","cve":"CVE-2026-43474","urls":{"html":"https://cve.report/CVE-2026-43474","api":"https://cve.report/api/cve/CVE-2026-43474.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-43474","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-43474"},"summary":{"title":"fs: init flags_valid before calling vfs_fileattr_get","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfs: init flags_valid before calling vfs_fileattr_get\n\nsyzbot reported a uninit-value bug in [1].\n\nSimilar to the \"*get\" context where the kernel's internal file_kattr\nstructure is initialized before calling vfs_fileattr_get(), we should\nuse the same mechanism when using fa.\n\n[1]\nBUG: KMSAN: uninit-value in fuse_fileattr_get+0xeb4/0x1450 fs/fuse/ioctl.c:517\n fuse_fileattr_get+0xeb4/0x1450 fs/fuse/ioctl.c:517\n vfs_fileattr_get fs/file_attr.c:94 [inline]\n __do_sys_file_getattr fs/file_attr.c:416 [inline]\n\nLocal variable fa.i created at:\n __do_sys_file_getattr fs/file_attr.c:380 [inline]\n __se_sys_file_getattr+0x8c/0xbd0 fs/file_attr.c:372","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-08 15:17:00","updated_at":"2026-05-12 14:10:27"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/cb184dd19154fc486fa3d9e02afe70a97e54e055","name":"https://git.kernel.org/stable/c/cb184dd19154fc486fa3d9e02afe70a97e54e055","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b8c182b2c8c44c6016b11d8af61715ad7ef958a1","name":"https://git.kernel.org/stable/c/b8c182b2c8c44c6016b11d8af61715ad7ef958a1","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/379e19e820dd1c6145426b97467728b3b89c0b42","name":"https://git.kernel.org/stable/c/379e19e820dd1c6145426b97467728b3b89c0b42","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-43474","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43474","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected be7efb2d20d67f334a7de2aef77ae6c69367e646 379e19e820dd1c6145426b97467728b3b89c0b42 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected be7efb2d20d67f334a7de2aef77ae6c69367e646 b8c182b2c8c44c6016b11d8af61715ad7ef958a1 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected be7efb2d20d67f334a7de2aef77ae6c69367e646 cb184dd19154fc486fa3d9e02afe70a97e54e055 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.17","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.17 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.19 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19.9 6.19.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"43474","cve":"CVE-2026-43474","epss":"0.000170000","percentile":"0.041290000","score_date":"2026-05-11","updated_at":"2026-05-12 00:01:17"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/file_attr.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"379e19e820dd1c6145426b97467728b3b89c0b42","status":"affected","version":"be7efb2d20d67f334a7de2aef77ae6c69367e646","versionType":"git"},{"lessThan":"b8c182b2c8c44c6016b11d8af61715ad7ef958a1","status":"affected","version":"be7efb2d20d67f334a7de2aef77ae6c69367e646","versionType":"git"},{"lessThan":"cb184dd19154fc486fa3d9e02afe70a97e54e055","status":"affected","version":"be7efb2d20d67f334a7de2aef77ae6c69367e646","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["fs/file_attr.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.17"},{"lessThan":"6.17","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.19","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.9","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.19","versionStartIncluding":"6.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.9","versionStartIncluding":"6.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0","versionStartIncluding":"6.17","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nfs: init flags_valid before calling vfs_fileattr_get\n\nsyzbot reported a uninit-value bug in [1].\n\nSimilar to the \"*get\" context where the kernel's internal file_kattr\nstructure is initialized before calling vfs_fileattr_get(), we should\nuse the same mechanism when using fa.\n\n[1]\nBUG: KMSAN: uninit-value in fuse_fileattr_get+0xeb4/0x1450 fs/fuse/ioctl.c:517\n fuse_fileattr_get+0xeb4/0x1450 fs/fuse/ioctl.c:517\n vfs_fileattr_get fs/file_attr.c:94 [inline]\n __do_sys_file_getattr fs/file_attr.c:416 [inline]\n\nLocal variable fa.i created at:\n __do_sys_file_getattr fs/file_attr.c:380 [inline]\n __se_sys_file_getattr+0x8c/0xbd0 fs/file_attr.c:372"}],"providerMetadata":{"dateUpdated":"2026-05-11T22:25:18.616Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/379e19e820dd1c6145426b97467728b3b89c0b42"},{"url":"https://git.kernel.org/stable/c/b8c182b2c8c44c6016b11d8af61715ad7ef958a1"},{"url":"https://git.kernel.org/stable/c/cb184dd19154fc486fa3d9e02afe70a97e54e055"}],"title":"fs: init flags_valid before calling vfs_fileattr_get","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-43474","datePublished":"2026-05-08T14:22:32.871Z","dateReserved":"2026-05-01T14:12:56.011Z","dateUpdated":"2026-05-11T22:25:18.616Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-08 15:17:00","lastModifiedDate":"2026-05-12 14:10:27","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"43474","Ordinal":"1","Title":"fs: init flags_valid before calling vfs_fileattr_get","CVE":"CVE-2026-43474","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"43474","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nfs: init flags_valid before calling vfs_fileattr_get\n\nsyzbot reported a uninit-value bug in [1].\n\nSimilar to the \"*get\" context where the kernel's internal file_kattr\nstructure is initialized before calling vfs_fileattr_get(), we should\nuse the same mechanism when using fa.\n\n[1]\nBUG: KMSAN: uninit-value in fuse_fileattr_get+0xeb4/0x1450 fs/fuse/ioctl.c:517\n fuse_fileattr_get+0xeb4/0x1450 fs/fuse/ioctl.c:517\n vfs_fileattr_get fs/file_attr.c:94 [inline]\n __do_sys_file_getattr fs/file_attr.c:416 [inline]\n\nLocal variable fa.i created at:\n __do_sys_file_getattr fs/file_attr.c:380 [inline]\n __se_sys_file_getattr+0x8c/0xbd0 fs/file_attr.c:372","Type":"Description","Title":"fs: init flags_valid before calling vfs_fileattr_get"}]}}}