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VulnerabilityPublished Updated

CVE-2026-97570: Linux kernel · bnxt_en: Bound SW TPA IDs to prevent crashes

Affects Linux kernelSource CVE Database V5

0

Not known to be exploited · CVSS 8.1 High : upgrade to c0aceaf65b70b3c000e70dd867f3a673015f24ca or 05cf64d171772c65bcdee76ee7163c35d9f55a89 soon.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score
8.1High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 38% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in c0aceaf65b70b3c000e70dd867f3a673015f24ca, 05cf64d171772c65bcdee76ee7163c35d9f55a89
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 25 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade Linux kernel to c0aceaf65b70b3c000e70dd867f3a673015f24ca or 05cf64d171772c65bcdee76ee7163c35d9f55a89.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 54c28fab2fa5afd681c9c4b10f4f6da1efdd397a, < c0aceaf65b70b3c000e70dd867f3a673015f24ca
Fixed in
  • c0aceaf65b70b3c000e70dd867f3a673015f24ca
LinuxLinuxAffected
  • ≥ 54c28fab2fa5afd681c9c4b10f4f6da1efdd397a, < 05cf64d171772c65bcdee76ee7163c35d9f55a89
Fixed in
  • 05cf64d171772c65bcdee76ee7163c35d9f55a89
LinuxLinuxAffected
  • =7.1
Fixed in–

AI-suggested

A fix is available and has been applied in the Linux kernel commits c0aceaf65b70b3c000e70dd867f3a673015f24ca and 05cf64d171772c65bcdee76ee7163c35d9f55a89. Users should update to a kernel version including these commits to resolve the issue. No additional mitigation is required beyond applying the official patch.

Description

CVE-2026-97570 is a vulnerability in the Linux kernel's bnxt_en network driver where software TPA IDs are not properly bounded, leading to out-of-bounds memory access. This can cause kernel crashes due to invalid pointer dereferences when the firmware advertises fewer concurrent TPAs than the software expects. The issue is fixed by allocating the rx_tpa array with a size rounded up to the next power of two and masking the firmware TPA ID accordingly.

References

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