bnxt_en: Fix NULL pointer dereference
Summary
| CVE | CVE-2026-53177 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-06-25 09:16:35 UTC |
| Updated | 2026-06-25 09:16:35 UTC |
| Description | 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. |
Risk And Classification
EPSS: 0.001720000 probability, percentile 0.068650000 (date 2026-06-25)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected e5811b8c09df9bc80eabc95339fceded23f16289 964b1c3eb71afe58bb61c8b984164447e000ae8a git | Not specified |
| CNA | Linux | Linux | affected e5811b8c09df9bc80eabc95339fceded23f16289 59c5a3e69c7630a811565937e64be70b08436761 git | Not specified |
| CNA | Linux | Linux | affected e5811b8c09df9bc80eabc95339fceded23f16289 1a418ad0e5e525d1d117dd1601681f75455af320 git | Not specified |
| CNA | Linux | Linux | affected e5811b8c09df9bc80eabc95339fceded23f16289 08e57d014ea19f303d5d57a849beb846f37788b7 git | Not specified |
| CNA | Linux | Linux | affected e5811b8c09df9bc80eabc95339fceded23f16289 3884976f87448e269908ae61bd5d62d54ce9c0c7 git | Not specified |
| CNA | Linux | Linux | affected e5811b8c09df9bc80eabc95339fceded23f16289 580844a9683afe7974856dd5b7886447435b3474 git | Not specified |
| CNA | Linux | Linux | affected e5811b8c09df9bc80eabc95339fceded23f16289 d930276f2cddd0b7294cac7a8fe7b877f6d9e08d git | Not specified |
| CNA | Linux | Linux | affected 4.17 | Not specified |
| CNA | Linux | Linux | unaffected 4.17 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.210 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.176 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.143 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.94 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.36 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.0.13 7.0.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.1 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/3884976f87448e269908ae61bd5d62d54ce9c0c7 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/964b1c3eb71afe58bb61c8b984164447e000ae8a | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/08e57d014ea19f303d5d57a849beb846f37788b7 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/580844a9683afe7974856dd5b7886447435b3474 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/d930276f2cddd0b7294cac7a8fe7b877f6d9e08d | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/1a418ad0e5e525d1d117dd1601681f75455af320 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/59c5a3e69c7630a811565937e64be70b08436761 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.