bnxt_en: set backing store type from query type

Overview

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

• Linux >= 6a4d0774f02d61f8c75ffe2e38a8553410fe52e9 < c66a27ca534580de1d28cf568f59fe5f50d43e15
• Linux >= 6a4d0774f02d61f8c75ffe2e38a8553410fe52e9 < c8d53b70166d1dc463ef42adb7293e1a770822c7
• Linux >= 6a4d0774f02d61f8c75ffe2e38a8553410fe52e9 < 29732b68a6816a815d58e9ab229844c23617e1e0
• Linux >= 6a4d0774f02d61f8c75ffe2e38a8553410fe52e9 < 4ee937107d52f9e5c350e4b5e629760e328b3d9f
• Linux 6.8

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.