{"id":"CVE-2026-90085","summary":"octeontx2-af: fix NULL deref in NIX TM tree debugfs read path","details":"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-\u003esq_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.","modified":"2026-09-18T03:48:35.339161791Z","published":"2026-09-17T16:06:01.525Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90085.json","cna_assigner":"Linux"},"references":[{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"},{"type":"WEB","url":"https://git.kernel.org/stable/c/537e11a1700f64dc6754108f0e1333ad63d4f548"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ec65631bd5ec251cdf67a4919fac7a3149a6e235"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fb736d733b0a60377cf53010571c261886446fd5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fdf7358e2688f12eff41290bc45030b7aff0845e"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90085.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90085"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"b907194a5d5bcd3b01d28d095f6a4d9fcd9c5354"},{"fixed":"fb736d733b0a60377cf53010571c261886446fd5"},{"fixed":"537e11a1700f64dc6754108f0e1333ad63d4f548"},{"fixed":"fdf7358e2688f12eff41290bc45030b7aff0845e"},{"fixed":"ec65631bd5ec251cdf67a4919fac7a3149a6e235"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90085.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.11.0"},{"fixed":"6.12.110"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.52"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90085.json"}}],"schema_version":"1.9.0"}