Draft: CVE-2024-40919: bnxt_en: Adjust logging of firmware messages in case of released token in __hwrm_send()
requested to merge redhat/red-hat-ci-tools/kernel/bot-branches/centos-stream-9:backport-RHEL-47822-centos-stream-9-main into main
JIRA: https://issues.redhat.com/browse/RHEL-47822
CVE: CVE-2024-40919
bnxt_en: Adjust logging of firmware messages in case of released token in __hwrm_send()
In case of token is released due to token->state == BNXT_HWRM_DEFERRED,
released token (set to NULL) is used in log messages. This issue is
expected to be prevented by HWRM_ERR_CODE_PF_UNAVAILABLE error code. But
this error code is returned by recent firmware. So some firmware may not
return it. This may lead to NULL pointer dereference.
Adjust this issue by adding token pointer check.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: 8fa4219dba8e ("bnxt_en: add dynamic debug support for HWRM messages")
Suggested-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Aleksandr Mishin <amishin@t-argos.ru>
Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://lore.kernel.org/r/20240611082547.12178-1-amishin@t-argos.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
(cherry picked from commit a9b9741854a9fe9df948af49ca5514e0ed0429df)Signed-off-by: CKI Backport Bot cki-ci-bot+cki-gitlab-backport-bot@redhat.com