CVE-2026-90085octeontx2-af: fix NULL deref in NIX TM tree debugfs read path
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: fix NULL deref in NIX TM tree debugfs read path rvu_dbg_nix_tm_tree_display() dereferences pfvf->sq_ctx without checking whether the SQ context has been allocated. Reading /sys/kernel/debug/octeontx2/nix/tm_tree for a NIX LF whose transmit queues are not set up triggers a kernel oops. Guard the read path the same way rvu_dbg_nix_tm_tree_write() already does and return -EINVAL with a seq_file message when sq_ctx is NULL.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from b907194a5d5bcd3b01d28d095f6a4d9fcd9c5354 before fb736d733b0a60377cf53010571c261886446fd5; from b907194a5d5bcd3b01d28d095f6a4d9fcd9c5354 before 537e11a1700f64dc6754108f0e1333ad63d4f548; from b907194a5d5bcd3b01d28d095f6a4d9fcd9c5354 before fdf7358e2688f12eff41290bc45030b7aff0845e; from b907194a5d5bcd3b01d28d095f6a4d9fcd9c5354 before ec65631bd5ec251cdf67a4919fac7a3149a6e235 | CNA record |
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
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.