CVE-2026-53177
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
36/100
Published: 2026-06-25
Modified: 2026-11-06
First seen: 2026-11-06
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
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.
Weakness Classification (1)
Affected Software (17)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | e5811b8c09df9bc80eabc95339fceded23f16289 < 1449177b87f768353909e930a99b902675119b2b |
| Linux | Linux | e5811b8c09df9bc80eabc95339fceded23f16289 < 964b1c3eb71afe58bb61c8b984164447e000ae8a |
| Linux | Linux | e5811b8c09df9bc80eabc95339fceded23f16289 < 59c5a3e69c7630a811565937e64be70b08436761 |
| Linux | Linux | e5811b8c09df9bc80eabc95339fceded23f16289 < 1a418ad0e5e525d1d117dd1601681f75455af320 |
| Linux | Linux | e5811b8c09df9bc80eabc95339fceded23f16289 < 08e57d014ea19f303d5d57a849beb846f37788b7 |
| Linux | Linux | e5811b8c09df9bc80eabc95339fceded23f16289 < 3884976f87448e269908ae61bd5d62d54ce9c0c7 |
| Linux | Linux | e5811b8c09df9bc80eabc95339fceded23f16289 < 580844a9683afe7974856dd5b7886447435b3474 |
| Linux | Linux | e5811b8c09df9bc80eabc95339fceded23f16289 < d930276f2cddd0b7294cac7a8fe7b877f6d9e08d |
| Linux | Linux | 4.17 |
| linux | linux_kernel | 4.17 – 5.15.210 |
| linux | linux_kernel | 7.1 |
| linux | linux_kernel | 7.1 |
| linux | linux_kernel | 7.1 |
| linux | linux_kernel | 7.1 |
| linux | linux_kernel | 7.1 |
| linux | linux_kernel | 7.1 |
| linux | linux_kernel | 7.1 |