wifi: iwlwifi: mvm: don't read past the mfuart notifcation

stable inclusion
from stable-v4.19.317
commit 15b37c6fab9d5e40ac399fa1c725118588ed649c
category: bugfix
bugzilla: https://gitee.com/src-openeuler/kernel/issues/IACQYV
CVE: CVE-2024-40941

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=15b37c6fab9d5e40ac399fa1c725118588ed649c



---------------------------

[ Upstream commit 4bb95f4535489ed830cf9b34b0a891e384d1aee4 ]

In case the firmware sends a notification that claims it has more data
than it has, we will read past that was allocated for the notification.
Remove the print of the buffer, we won't see it by default. If needed,
we can see the content with tracing.

This was reported by KFENCE.

Fixes: bdccdb85 ("iwlwifi: mvm: support MFUART dump in case of MFUART assert")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240513132416.ba82a01a559e.Ia91dd20f5e1ca1ad380b95e68aebf2794f553d9b@changeid


Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>