CVE-2021-47602 (GCVE-0-2021-47602)

Vulnerability from cvelistv5 – Published: 2024-06-19 14:54 – Updated: 2025-05-04 07:14
VLAI?
Title
mac80211: track only QoS data frames for admission control
Summary
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 02219b3abca59fca81711bfe7ee78df7abad97ce , < 69f054d6642c8f6173724ce17e7ee3ff66b8f682 (git)
Affected: 02219b3abca59fca81711bfe7ee78df7abad97ce , < 46b9e29db2012a4d2a40a26101862e002ccf387b (git)
Affected: 02219b3abca59fca81711bfe7ee78df7abad97ce , < eed897a22230e3231a740eddd7d6d95ba476625f (git)
Affected: 02219b3abca59fca81711bfe7ee78df7abad97ce , < 42d08e97b196479f593499e887a9ab81446a34b9 (git)
Affected: 02219b3abca59fca81711bfe7ee78df7abad97ce , < d5e568c3a4ec2ddd23e7dc5ad5b0c64e4f22981a (git)
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    Linux Linux Affected: 3.19
Unaffected: 0 , < 3.19 (semver)
Unaffected: 4.19.222 , ≤ 4.19.* (semver)
Unaffected: 5.4.168 , ≤ 5.4.* (semver)
Unaffected: 5.10.88 , ≤ 5.10.* (semver)
Unaffected: 5.15.11 , ≤ 5.15.* (semver)
Unaffected: 5.16 , ≤ * (original_commit_for_fix)
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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