{"api_version":"1","generated_at":"2026-09-24T23:02:00+00:00","cve":"CVE-2026-97503","urls":{"html":"https://cve.report/CVE-2026-97503","api":"https://cve.report/api/cve/CVE-2026-97503.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-97503","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-97503"},"summary":{"title":"genirq/proc: Size interrupt directory names for 10-digit interrupt numbers","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ngenirq/proc: Size interrupt directory names for 10-digit interrupt numbers\n\n/proc/irq/<n>/ directory names are built in `char name[10]` buffers\nwith `sprintf(name, \"%u\", irq)`.\n\nTen-digit IRQ numbers already need 11 bytes including the trailing NUL, and\ncurrent sparse-IRQ configurations allow interrupt numbers in that range.\n\nSize the temporary name buffer for the current decimal form and switch\nto bounded formatting when creating or removing the proc entry.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-24 17:17:28","updated_at":"2026-09-24 17:17:28"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/c2c7983c93f5d86962318be7e7298f1bc3feb1a6","name":"https://git.kernel.org/stable/c/c2c7983c93f5d86962318be7e7298f1bc3feb1a6","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d4b22fbae70037299e96539c330e4a1054b28a91","name":"https://git.kernel.org/stable/c/d4b22fbae70037299e96539c330e4a1054b28a91","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-97503","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97503","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 d4b22fbae70037299e96539c330e4a1054b28a91 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 c2c7983c93f5d86962318be7e7298f1bc3feb1a6 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.18.53 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.53 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["kernel/irq/proc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"d4b22fbae70037299e96539c330e4a1054b28a91","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"c2c7983c93f5d86962318be7e7298f1bc3feb1a6","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"6.18.53","status":"affected","version":"0","versionType":"semver"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["kernel/irq/proc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.53","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.53","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ngenirq/proc: Size interrupt directory names for 10-digit interrupt numbers\n\n/proc/irq/<n>/ directory names are built in `char name[10]` buffers\nwith `sprintf(name, \"%u\", irq)`.\n\nTen-digit IRQ numbers already need 11 bytes including the trailing NUL, and\ncurrent sparse-IRQ configurations allow interrupt numbers in that range.\n\nSize the temporary name buffer for the current decimal form and switch\nto bounded formatting when creating or removing the proc entry."}],"providerMetadata":{"dateUpdated":"2026-09-24T16:04:50.412Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/d4b22fbae70037299e96539c330e4a1054b28a91"},{"url":"https://git.kernel.org/stable/c/c2c7983c93f5d86962318be7e7298f1bc3feb1a6"}],"title":"genirq/proc: Size interrupt directory names for 10-digit interrupt numbers","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-97503","datePublished":"2026-09-24T16:04:50.412Z","dateReserved":"2026-09-24T16:01:01.151Z","dateUpdated":"2026-09-24T16:04:50.412Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-24 17:17:28","lastModifiedDate":"2026-09-24 17:17:28","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"97503","Ordinal":"1","Title":"genirq/proc: Size interrupt directory names for 10-digit interru","CVE":"CVE-2026-97503","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"97503","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\ngenirq/proc: Size interrupt directory names for 10-digit interrupt numbers\n\n/proc/irq/<n>/ directory names are built in `char name[10]` buffers\nwith `sprintf(name, \"%u\", irq)`.\n\nTen-digit IRQ numbers already need 11 bytes including the trailing NUL, and\ncurrent sparse-IRQ configurations allow interrupt numbers in that range.\n\nSize the temporary name buffer for the current decimal form and switch\nto bounded formatting when creating or removing the proc entry.","Type":"Description","Title":"genirq/proc: Size interrupt directory names for 10-digit interru"}]}}}