Answer in brief
CVE-2026-53177 records a Medium severity (CVSS 5.5) vulnerability in bnxt_en: Fix NULL pointer dereference. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=e5811b8c09df9bc80eabc95339fceded23f16289 <1449177b87f768353909e930a99b902675119b2b || >=e5811b8c09df9bc80eabc95339fceded23f16289 <964b1c3eb71afe58bb61c8b984164447e000ae8a || >=e5811b8c09df9bc80eabc95339fceded23f16289 <59c5a3e69c7630a811565937e64be70b08436761 || >=e5811b8c09df9bc80eabc95339fceded23f16289 <1a418ad0e5e525d1d117dd1601681f75455af320 || >=e5811b8c09df9bc80eabc95339fceded23f16289 <08e57d014ea19f303d5d57a849beb846f37788b7 || >=e5811b8c09df9bc80eabc95339fceded23f16289 <3884976f87448e269908ae61bd5d62d54ce9c0c7 || >=e5811b8c09df9bc80eabc95339fceded23f16289 <580844a9683afe7974856dd5b7886447435b3474 || >=e5811b8c09df9bc80eabc95339fceded23f16289 <d930276f2cddd0b7294cac7a8fe7b877f6d9e08d | 1449177b87f768353909e930a99b902675119b2b, 964b1c3eb71afe58bb61c8b984164447e000ae8a, 59c5a3e69c7630a811565937e64be70b08436761, 1a418ad0e5e525d1d117dd1601681f75455af320, 08e57d014ea19f303d5d57a849beb846f37788b7, 3884976f87448e269908ae61bd5d62d54ce9c0c7, 580844a9683afe7974856dd5b7886447435b3474, d930276f2cddd0b7294cac7a8fe7b877f6d9e08d |
| Linux/Linuxgeneric | 4.17 | Not reported |
| Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystemgeneric | >=0 <* | * |
Published upstream
Jun 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 25, 2026
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.
Quoted source text, attributed separately from HOL analysis.