Description
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
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
02219b3abca59fca81711bfe7ee78df7abad97ce to < 69f054d6642c8f6173724ce17e7ee3ff66b8f682affected02219b3abca59fca81711bfe7ee78df7abad97ce to < 46b9e29db2012a4d2a40a26101862e002ccf387baffected02219b3abca59fca81711bfe7ee78df7abad97ce to < eed897a22230e3231a740eddd7d6d95ba476625faffected02219b3abca59fca81711bfe7ee78df7abad97ce to < 42d08e97b196479f593499e887a9ab81446a34b9affected02219b3abca59fca81711bfe7ee78df7abad97ce to < d5e568c3a4ec2ddd23e7dc5ad5b0c64e4f22981aaffected
Linux Linux
Default version status: affected
3.19affected0 to < 3.19unaffected4.19.222 to ≤ 4.19.*unaffected5.4.168 to ≤ 5.4.*unaffected5.10.88 to ≤ 5.10.*unaffected5.15.11 to ≤ 5.15.*unaffected5.16 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/69f054d6642c8f6173724ce17e7ee3ff66b8f682 ↗
- https://git.kernel.org/stable/c/46b9e29db2012a4d2a40a26101862e002ccf387b ↗
- https://git.kernel.org/stable/c/eed897a22230e3231a740eddd7d6d95ba476625f ↗
- https://git.kernel.org/stable/c/42d08e97b196479f593499e887a9ab81446a34b9 ↗
- https://git.kernel.org/stable/c/d5e568c3a4ec2ddd23e7dc5ad5b0c64e4f22981a ↗