CVE-2021-47602
Medium
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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedJun 19, 2024
First seenJun 19, 2024
How to fix
Update
- linux linux_kernel4.19.222, 5.4.168, 5.10.88, 5.15.11 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 3.19 ≤ v < 4.19.222, 4.20 ≤ v < 5.4.168, 5.5 ≤ v < 5.10.88, 5.11 ≤ v < 5.15.11, 5.16 | 4.19.222, 5.4.168, 5.10.88, 5.15.11 |
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