Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected e5811b8c09df9bc80eabc95339fceded23f16289 before 1449177b87f768353909e930a99b902675119b2b; affected e5811b8c09df9bc80eabc95339fceded23f16289 before 964b1c3eb71afe58bb61c8b984164447e000ae8a; affected e5811b8c09df9bc80eabc95339fceded23f16289 before 59c5a3e69c7630a811565937e64be70b08436761; affected e5811b8c09df9bc80eabc95339fceded23f16289 before 1a418ad0e5e525d1d117dd1601681f75455af320; affected e5811b8c09df9bc80eabc95339fceded23f16289 before 08e57d014ea19f303d5d57a849beb846f37788b7; affected e5811b8c09df9bc80eabc95339fceded23f16289 before 3884976f87448e269908ae61bd5d62d54ce9c0c7; affected e5811b8c09df9bc80eabc95339fceded23f16289 before 580844a9683afe7974856dd5b7886447435b3474; affected e5811b8c09df9bc80eabc95339fceded23f16289 before d930276f2cddd0b7294cac7a8fe7b877f6d9e08d |
| Linux / Linux | affected 4.17; unaffected 0 before 4.17; unaffected 5.10.260 through 5.10.*; unaffected 5.15.210 through 5.15.*; unaffected 6.1.176 through 6.1.*; unaffected 6.6.143 through 6.6.*; unaffected 6.12.94 through 6.12.*; unaffected 6.18.36 through 6.18.*; unaffected 7.0.13 through 7.0.*; unaffected 7.1 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/1449177b87f768353909e930a99b902675119b2b
- https://git.kernel.org/stable/c/964b1c3eb71afe58bb61c8b984164447e000ae8a
- https://git.kernel.org/stable/c/59c5a3e69c7630a811565937e64be70b08436761
- https://git.kernel.org/stable/c/1a418ad0e5e525d1d117dd1601681f75455af320
- https://git.kernel.org/stable/c/08e57d014ea19f303d5d57a849beb846f37788b7
- https://git.kernel.org/stable/c/3884976f87448e269908ae61bd5d62d54ce9c0c7
- https://git.kernel.org/stable/c/580844a9683afe7974856dd5b7886447435b3474
- https://git.kernel.org/stable/c/d930276f2cddd0b7294cac7a8fe7b877f6d9e08d
ADP enrichment
No English description supplied.