[PATCH v2 0/5] net/bnxt: fix VF and firmware-facing bounds/leak issues
Mohammad Shuab Siddique
mohammad-shuab.siddique at broadcom.com
Mon Sep 21 04:19:57 CEST 2026
From: Mohammad Shuab Siddique <mohammad-shuab.siddique at broadcom.com>
This series fixes five independent out-of-bounds and memory-leak
issues in VF- and firmware-facing control-path code in the bnxt PMD:
- an unvalidated, firmware-controlled VF ID used to index
bp->pf->vf_info[] before range-checking it,
- firmware-reported ring-group/L2-context counts that were not
clamped before being cast down or summed,
- a use-after-free in the VNIC filter list walk during cleanup
(STAILQ_FOREACH() dereferencing a node this loop had already
freed),
- a memory leak on the VF VNIC query error path, and
- a memory leak on the VF info allocation error path.
Each patch is independently bisectable and was validated with a
scoped net/bnxt build (and, for split points, an intermediate-commit
build) in addition to the full compliance gate.
v2:
* Patch 2/5 and patch 5/5 had their Fixes: tag SHA1s corrected to the
full 12-character form per checkpatch's BAD_FIXES_TAG warning. No
functional/code changes anywhere in this series -- patches 1/5,
3/5 and 4/5 are unchanged from v1.
Joseph Wong (3):
net/bnxt: add VF ID boundary check before usage
net/bnxt: fix bounds on firmware-reported resource counts
net/bnxt: fix VF info alloc error path memory leak
Kishore Padmanabha (1):
net/bnxt: fix memory leak in VF VNIC query error path
Mohammad Shuab Siddique (1):
net/bnxt: fix use-after-free in VNIC filter cleanup
drivers/net/bnxt/bnxt.h | 3 +++
drivers/net/bnxt/bnxt_cpr.c | 25 ++++++++++++++-----------
drivers/net/bnxt/bnxt_hwrm.c | 31 +++++++++++++++++++++----------
3 files changed, 38 insertions(+), 21 deletions(-)
--
2.47.3
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