CVE-2026-53177 (GCVE-0-2026-53177)

Vulnerability from cvelistv5 – Published: 2026-06-25 08:38 – Updated: 2026-11-06 16:24
VLAI
Title
bnxt_en: Fix NULL pointer dereference
Summary
In the Linux kernel, the following vulnerability has been resolved: bnxt_en: Fix NULL pointer dereference PCIe errors detected by a Root Port or Downstream Port cause error recovery services to run on all subordinate devices regardless of administrative state. The .error_detected() callback, bnxt_io_error_detected(), disables and synchronizes IRQs via bnxt_disable_int_sync(), which calls bnxt_cp_num_to_irq_num() to map completion rings to IRQs using bp->bnapi. Since bp->bnapi is allocated on NIC open and freed on NIC close, PCIe error recovery on a closed NIC can dereference a NULL pointer. Check if bp->bnapi is NULL before disabling and synchronizing IRQs.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-06 16:21 UTC
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6653 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: e5811b8c09df9bc80eabc95339fceded23f16289 , < 1449177b87f768353909e930a99b902675119b2b (git)
Affected: e5811b8c09df9bc80eabc95339fceded23f16289 , < 964b1c3eb71afe58bb61c8b984164447e000ae8a (git)
Affected: e5811b8c09df9bc80eabc95339fceded23f16289 , < 59c5a3e69c7630a811565937e64be70b08436761 (git)
Affected: e5811b8c09df9bc80eabc95339fceded23f16289 , < 1a418ad0e5e525d1d117dd1601681f75455af320 (git)
Affected: e5811b8c09df9bc80eabc95339fceded23f16289 , < 08e57d014ea19f303d5d57a849beb846f37788b7 (git)
Affected: e5811b8c09df9bc80eabc95339fceded23f16289 , < 3884976f87448e269908ae61bd5d62d54ce9c0c7 (git)
Affected: e5811b8c09df9bc80eabc95339fceded23f16289 , < 580844a9683afe7974856dd5b7886447435b3474 (git)
Affected: e5811b8c09df9bc80eabc95339fceded23f16289 , < d930276f2cddd0b7294cac7a8fe7b877f6d9e08d (git)
guessed Create a notification for this product.
Linux Linux Affected: 4.17
Unaffected: 0 , < 4.17 (semver)
Unaffected: 5.10.260 , ≤ 5.10.* (semver)
Unaffected: 5.15.210 , ≤ 5.15.* (semver)
Unaffected: 6.1.176 , ≤ 6.1.* (semver)
Unaffected: 6.6.143 , ≤ 6.6.* (semver)
Unaffected: 6.12.94 , ≤ 6.12.* (semver)
Unaffected: 6.18.36 , ≤ 6.18.* (semver)
Unaffected: 7.0.13 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem Affected: 0 , < * (custom)
guessed Create a notification for this product.
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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

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