diff options
| author |   Wei Fang <wei.fang@nxp.com> | 2026-05-20 14:44:15 +0800 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2026-05-21 08:48:59 -0700 |
| commit | 4a995d37b537f437daa01752d39cf44c6ba9ee2c (patch) | |
| tree | 9fbd57e8c9e11512cb2626ce150fd4895e6b455d /tools/testing/selftests/dm-verity/git:/ssh:/git@git.zx2c4.com | |
| parent | net: enetc: fix missing error code when pf->vf_state allocation fails (diff) | |
net: enetc: add ratelimiting to VF mailbox error messages
Sashiko reported that a buggy or malicious guest VM can flood the host
kernel log by repeatedly sending VF-to-PF messages at a high rate,
degrading host performance and hiding important system logs [1].
Fix by replacing dev_err()/dev_warn() with dev_err_ratelimited(),
limiting output to the default kernel ratelimit. This ensures errors are
still logged for debugging while preventing log flooding attacks.
Link: https://sashiko.dev/#/patchset/20260511080805.2052495-1-wei.fang%40nxp.com #1
Fixes: beb74ac878c8 ("enetc: Add vf to pf messaging support")
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Reviewed-by: Harshitha Ramamurthy <hramamurthy@google.com>
Link: https://patch.msgid.link/20260520064421.91569-4-wei.fang@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools/testing/selftests/dm-verity/git:/ssh:/git@git.zx2c4.com')
0 files changed, 0 insertions, 0 deletions