{"id":"CVE-2026-90085","state":"PUBLISHED","title":"octeontx2-af: fix NULL deref in NIX TM tree debugfs read path","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-af: fix NULL deref in NIX TM tree debugfs read path\n\nrvu_dbg_nix_tm_tree_display() dereferences pfvf->sq_ctx without\nchecking whether the SQ context has been allocated. Reading\n/sys/kernel/debug/octeontx2/nix/tm_tree for a NIX LF whose transmit\nqueues are not set up triggers a kernel oops.\n\nGuard the read path the same way rvu_dbg_nix_tm_tree_write() already\ndoes and return -EINVAL with a seq_file message when sq_ctx is NULL.","publishedAt":"2026-09-17T16:06:01.525Z","updatedAt":"2026-10-19T08:57:41.513Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"b907194a5d5bcd3b01d28d095f6a4d9fcd9c5354","status":"affected","lessThan":"fb736d733b0a60377cf53010571c261886446fd5","versionType":"git"},{"version":"b907194a5d5bcd3b01d28d095f6a4d9fcd9c5354","status":"affected","lessThan":"537e11a1700f64dc6754108f0e1333ad63d4f548","versionType":"git"},{"version":"b907194a5d5bcd3b01d28d095f6a4d9fcd9c5354","status":"affected","lessThan":"fdf7358e2688f12eff41290bc45030b7aff0845e","versionType":"git"},{"version":"b907194a5d5bcd3b01d28d095f6a4d9fcd9c5354","status":"affected","lessThan":"ec65631bd5ec251cdf67a4919fac7a3149a6e235","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.11","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/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c"]}],"references":["https://git.kernel.org/stable/c/fb736d733b0a60377cf53010571c261886446fd5","https://git.kernel.org/stable/c/537e11a1700f64dc6754108f0e1333ad63d4f548","https://git.kernel.org/stable/c/fdf7358e2688f12eff41290bc45030b7aff0845e","https://git.kernel.org/stable/c/ec65631bd5ec251cdf67a4919fac7a3149a6e235"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/90xxx/CVE-2026-90085.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-90085","state":"PUBLISHED","datePublished":"2026-09-17T16:06:01.525Z","dateUpdated":"2026-10-19T08:57:41.513Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-11T19:38:34.785Z"},"containers":{"cna":{"title":"octeontx2-af: fix NULL deref in NIX TM tree debugfs read path","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-af: fix NULL deref in NIX TM tree debugfs read path\n\nrvu_dbg_nix_tm_tree_display() dereferences pfvf->sq_ctx without\nchecking whether the SQ context has been allocated. Reading\n/sys/kernel/debug/octeontx2/nix/tm_tree for a NIX LF whose transmit\nqueues are not set up triggers a kernel oops.\n\nGuard the read path the same way rvu_dbg_nix_tm_tree_write() already\ndoes and return -EINVAL with a seq_file message when sq_ctx is NULL."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"b907194a5d5bcd3b01d28d095f6a4d9fcd9c5354","status":"affected","lessThan":"fb736d733b0a60377cf53010571c261886446fd5","versionType":"git"},{"version":"b907194a5d5bcd3b01d28d095f6a4d9fcd9c5354","status":"affected","lessThan":"537e11a1700f64dc6754108f0e1333ad63d4f548","versionType":"git"},{"version":"b907194a5d5bcd3b01d28d095f6a4d9fcd9c5354","status":"affected","lessThan":"fdf7358e2688f12eff41290bc45030b7aff0845e","versionType":"git"},{"version":"b907194a5d5bcd3b01d28d095f6a4d9fcd9c5354","status":"affected","lessThan":"ec65631bd5ec251cdf67a4919fac7a3149a6e235","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.11","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/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/fb736d733b0a60377cf53010571c261886446fd5"},{"url":"https://git.kernel.org/stable/c/537e11a1700f64dc6754108f0e1333ad63d4f548"},{"url":"https://git.kernel.org/stable/c/fdf7358e2688f12eff41290bc45030b7aff0845e"},{"url":"https://git.kernel.org/stable/c/ec65631bd5ec251cdf67a4919fac7a3149a6e235"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T08:57:41.513Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.18.52"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}