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| author |   Mikhail Lobanov <m.lobanov@rosa.ru> | 2025-03-17 13:31:37 +0300 |
|---|---|---|
| committer |   Johannes Berg <johannes.berg@intel.com> | 2025-03-18 10:27:33 +0100 |
| commit | 16ee3ea8faef8ff042acc15867a6c458c573de61 (patch) | |
| tree | 8a8f615a7d38f8f50b3fa01aa44a69a40f4fbd17 /net/wireless | |
| parent | wifi: mac80211: fix indentation in ieee80211_set_monitor_channel() (diff) | |
| download | linux-rng-16ee3ea8faef8ff042acc15867a6c458c573de61.tar.xz linux-rng-16ee3ea8faef8ff042acc15867a6c458c573de61.zip | |
wifi: mac80211: check basic rates validity in sta_link_apply_parameters
When userspace sets supported rates for a new station via
NL80211_CMD_NEW_STATION, it might send a list that's empty
or contains only invalid values. Currently, we process these
values in sta_link_apply_parameters() without checking the result of
ieee80211_parse_bitrates(), which can lead to an empty rates bitmap.
A similar issue was addressed for NL80211_CMD_SET_BSS in commit
ce04abc3fcc6 ("wifi: mac80211: check basic rates validity").
This patch applies the same approach in sta_link_apply_parameters()
for NL80211_CMD_NEW_STATION, ensuring there is at least one valid
rate by inspecting the result of ieee80211_parse_bitrates().
Found by Linux Verification Center (linuxtesting.org) with Syzkaller.
Fixes: b95eb7f0eee4 ("wifi: cfg80211/mac80211: separate link params from station params")
Signed-off-by: Mikhail Lobanov <m.lobanov@rosa.ru>
Link: https://patch.msgid.link/20250317103139.17625-1-m.lobanov@rosa.ru
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless')
0 files changed, 0 insertions, 0 deletions