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CVE-2022-49305

17
FAUCET Score

CVE-2022-49305 describes a deadlock vulnerability in the Linux kernel's rtl8192u driver, specifically within the ieee80211_beacons_stop() function. This medium-severity flaw (CVSS 5.5) can lead to a denial of service (A:H) due to a race condition where a spinlock is held while waiting for a timer, which itself requires the same lock. While the vulnerability affects the Linux kernel, there is no evidence of active exploitation, public exploit code, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.19.247CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.20, < 5.4.198CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.122CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.47CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 5.17.15CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.20%
Probability of exploitation in next 30 days
EPSS Percentile
10.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0020 is in the 48th percentile among its peer group of 15,940 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2022-49305Moderate

kernel: drivers: staging: rtl8192u: Fix deadlock in ieee80211_beacons_stop()

Feb 26, 2025

References

git.kernel.org / stable/c/042915c1bfedd684c1d98a841794ee203200571a
Patch
git.kernel.org / stable/c/1fbe033c52480f7954c057510040fa6286c4ea25
Patch
git.kernel.org / stable/c/66f769762f65d957f688f3258755c6ec410bf710
Patch
git.kernel.org / stable/c/806c7b53414934ba2a39449b31fd1a038e500273
Patch
git.kernel.org / stable/c/b34cb54923a6e5ddefbaf358c85c922c6ab456e2
Patch
git.kernel.org / stable/c/b465bb2ebf666116c1ac745cb80c65154dc0d27e
Patch
git.kernel.org / stable/c/ffc9cab7243f8151be37966301307bfd3cda2db3
Patch