CVE-2026-90085 (GCVE-0-2026-90085)

Vulnerability from cvelistv5 – Published: 2026-09-17 16:06 – Updated: 2026-09-17 16:06
VLAI
Title
octeontx2-af: fix NULL deref in NIX TM tree debugfs read path
Summary
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: b907194a5d5bcd3b01d28d095f6a4d9fcd9c5354 , < fb736d733b0a60377cf53010571c261886446fd5 (git)
Affected: b907194a5d5bcd3b01d28d095f6a4d9fcd9c5354 , < 537e11a1700f64dc6754108f0e1333ad63d4f548 (git)
Affected: b907194a5d5bcd3b01d28d095f6a4d9fcd9c5354 , < fdf7358e2688f12eff41290bc45030b7aff0845e (git)
Affected: b907194a5d5bcd3b01d28d095f6a4d9fcd9c5354 , < ec65631bd5ec251cdf67a4919fac7a3149a6e235 (git)
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Linux Linux Affected: 6.11
Unaffected: 0 , < 6.11 (semver)
Unaffected: 6.12.110 , ≤ 6.12.* (semver)
Unaffected: 6.18.52 , ≤ 6.18.* (semver)
Unaffected: 7.2.6 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)
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{
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          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c"
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          "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-\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."
        }
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      "providerMetadata": {
        "dateUpdated": "2026-09-17T16:06:01.525Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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    "cveId": "CVE-2026-90085",
    "datePublished": "2026-09-17T16:06:01.525Z",
    "dateReserved": "2026-09-11T19:38:34.785Z",
    "dateUpdated": "2026-09-17T16:06:01.525Z",
    "state": "PUBLISHED"
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      "date": "2026-09-25",
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            "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-\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."
          }
        ],
        "id": "CVE-2026-90085",
        "lastModified": "2026-09-17T17:16:57.957",
        "metrics": {},
        "published": "2026-09-17T17:16:57.957",
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        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    }
  }
}



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