mac80211: track only QoS data frames for admission control
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.2%
exploitation probability
0.2%top 88% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
mac80211: track only QoS data frames for admission control
For admission control, obviously all of that only works for
QoS data frames, otherwise we cannot even access the QoS
field in the header.
Syzbot reported (see below) an uninitialized value here due
to a status of a non-QoS nullfunc packet, which isn't even
long enough to contain the QoS header.
Fix this to only do anything for QoS data packets.
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/42d08e97b196479f593499e887a9ab81446a34b9https://git.kernel.org/stable/c/46b9e29db2012a4d2a40a26101862e002ccf387bhttps://git.kernel.org/stable/c/69f054d6642c8f6173724ce17e7ee3ff66b8f682https://git.kernel.org/stable/c/d5e568c3a4ec2ddd23e7dc5ad5b0c64e4f22981ahttps://git.kernel.org/stable/c/eed897a22230e3231a740eddd7d6d95ba476625f