CVE-2026-43034

bnxt_en: set backing store type from query type

MEDIUM
5.5
CVSS Score
Published: May 1, 2026 at 02:15 PM UTC
Updated: October 21, 2026 at 01:18 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: bnxt_en: set backing store type from query type bnxt_hwrm_func_backing_store_qcaps_v2() stores resp->type from the firmware response in ctxm->type and later uses that value to index fixed backing-store metadata arrays such as ctx_arr[] and bnxt_bstore_to_trace[]. ctxm->type is fixed by the current backing-store query type and matches the array index of ctx->ctx_arr. Set ctxm->type from the current loop variable instead of depending on resp->type. Also update the loop to advance type from next_valid_type in the for statement, which keeps the control flow simpler for non-valid and unchanged entries.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.19 ≤ v < 6.19.126.8 ≤ v < 6.18.226.86a4d0774f02d61f8c75ffe2e38a8553410fe52e97.07.0 rc17.0 rc27.0 rc37.0 rc47.0 rc57.0 rc6
Vendor states this is fixed in 29732b68a6816a815d58e9ab229844c23617e1e0 (fixed)
Vendor states this is fixed in 4ee937107d52f9e5c350e4b5e629760e328b3d9f (fixed)
Vendor states this is fixed in c8d53b70166d1dc463ef42adb7293e1a770822c7 (fixed)
Vendor states this is fixed in 6.12.114 (unaffected)
Vendor states this is fixed in 6.18.22 (unaffected)
Vendor states this is fixed in 6.19.12 (unaffected)
Vendor states this is fixed in 6.8 (unaffected)
Vendor states this is fixed in 7.0 (unaffected)

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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