{"id":"CVE-2026-92477","state":"PUBLISHED","title":"scsi: ufs: debugfs: Reserve space for a string terminator","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: ufs: debugfs: Reserve space for a string terminator\n\nufs_saved_err_write() copies user input into a zero-initialized stack\nbuffer and passes it to kstrtoint(). A write that fills the entire buffer\noverwrites its only terminator.\n\nReject an input whose length leaves no room for the trailing NUL.","publishedAt":"2026-09-17T16:09:55.741Z","updatedAt":"2026-10-19T09:03:43.608Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"7340faae947400907e5e7581444712110d2811d5","status":"affected","lessThan":"b43890843e834300f967c69e74c7c2eb22cb1664","versionType":"git"},{"version":"7340faae947400907e5e7581444712110d2811d5","status":"affected","lessThan":"587be18e0935632ebd367b0f89e37aa5762e400f","versionType":"git"},{"version":"7340faae947400907e5e7581444712110d2811d5","status":"affected","lessThan":"d223989e1a1edad217b673486b093bd157fb6c9a","versionType":"git"},{"version":"7340faae947400907e5e7581444712110d2811d5","status":"affected","lessThan":"cc92af8cc0e4dacd4375d34475141b0f1a70c09e","versionType":"git"},{"version":"7340faae947400907e5e7581444712110d2811d5","status":"affected","lessThan":"2b3fb5693c25c21741f357a8c9d0e1f19b7e368f","versionType":"git"},{"version":"7340faae947400907e5e7581444712110d2811d5","status":"affected","lessThan":"abd26e6b53c4169122d61fdd4cabe09bdd916aac","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/ufs/core/ufs-debugfs.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.16","versionType":"semver"},{"version":"6.1.188","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","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":["drivers/ufs/core/ufs-debugfs.c"]}],"references":["https://git.kernel.org/stable/c/b43890843e834300f967c69e74c7c2eb22cb1664","https://git.kernel.org/stable/c/587be18e0935632ebd367b0f89e37aa5762e400f","https://git.kernel.org/stable/c/d223989e1a1edad217b673486b093bd157fb6c9a","https://git.kernel.org/stable/c/cc92af8cc0e4dacd4375d34475141b0f1a70c09e","https://git.kernel.org/stable/c/2b3fb5693c25c21741f357a8c9d0e1f19b7e368f","https://git.kernel.org/stable/c/abd26e6b53c4169122d61fdd4cabe09bdd916aac"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/92xxx/CVE-2026-92477.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-92477","state":"PUBLISHED","datePublished":"2026-09-17T16:09:55.741Z","dateUpdated":"2026-10-19T09:03:43.608Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-16T12:21:13.870Z"},"containers":{"cna":{"title":"scsi: ufs: debugfs: Reserve space for a string terminator","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: ufs: debugfs: Reserve space for a string terminator\n\nufs_saved_err_write() copies user input into a zero-initialized stack\nbuffer and passes it to kstrtoint(). A write that fills the entire buffer\noverwrites its only terminator.\n\nReject an input whose length leaves no room for the trailing NUL."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"7340faae947400907e5e7581444712110d2811d5","status":"affected","lessThan":"b43890843e834300f967c69e74c7c2eb22cb1664","versionType":"git"},{"version":"7340faae947400907e5e7581444712110d2811d5","status":"affected","lessThan":"587be18e0935632ebd367b0f89e37aa5762e400f","versionType":"git"},{"version":"7340faae947400907e5e7581444712110d2811d5","status":"affected","lessThan":"d223989e1a1edad217b673486b093bd157fb6c9a","versionType":"git"},{"version":"7340faae947400907e5e7581444712110d2811d5","status":"affected","lessThan":"cc92af8cc0e4dacd4375d34475141b0f1a70c09e","versionType":"git"},{"version":"7340faae947400907e5e7581444712110d2811d5","status":"affected","lessThan":"2b3fb5693c25c21741f357a8c9d0e1f19b7e368f","versionType":"git"},{"version":"7340faae947400907e5e7581444712110d2811d5","status":"affected","lessThan":"abd26e6b53c4169122d61fdd4cabe09bdd916aac","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/ufs/core/ufs-debugfs.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.16","versionType":"semver"},{"version":"6.1.188","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","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":["drivers/ufs/core/ufs-debugfs.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/b43890843e834300f967c69e74c7c2eb22cb1664"},{"url":"https://git.kernel.org/stable/c/587be18e0935632ebd367b0f89e37aa5762e400f"},{"url":"https://git.kernel.org/stable/c/d223989e1a1edad217b673486b093bd157fb6c9a"},{"url":"https://git.kernel.org/stable/c/cc92af8cc0e4dacd4375d34475141b0f1a70c09e"},{"url":"https://git.kernel.org/stable/c/2b3fb5693c25c21741f357a8c9d0e1f19b7e368f"},{"url":"https://git.kernel.org/stable/c/abd26e6b53c4169122d61fdd4cabe09bdd916aac"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:03:43.608Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.1.188"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.6.157"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.18.52"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}