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CVE-2022-49149

15
FAUCET Score

CVE-2022-49149 is a race condition vulnerability in the Linux kernel's rxrpc component, affecting the handling of call timers. This flaw allows a timer associated with an rxrpc_call structure to be restarted after it has already been stopped and potentially deallocated, leading to a system crash (oops). The vulnerability has a CVSS score of 4.7 (Medium), indicating a local attack vector with high attack complexity, low privileges required, and a high impact on availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.15.1, < 5.10.110CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.33CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 5.16.19CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.17, < 5.17.2CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
4.15CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:4.15:-:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.7MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.0
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.17%
Probability of exploitation in next 30 days
EPSS Percentile
6.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0017 is in the 37th percentile among its peer group of 1,297 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 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 0.4 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (2)

redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2022-49149Moderate

kernel: rxrpc: Fix call timer start racing with call destruction

Feb 26, 2025

References

git.kernel.org / stable/c/051360e51341cd17738d82c15a8226010c7cb7f6
Patch
git.kernel.org / stable/c/4a7f62f91933c8ae5308f9127fd8ea48188b6bc3
Patch
git.kernel.org / stable/c/54df5a37f1d951ed27fd47bf9b15a42279582110
Patch
git.kernel.org / stable/c/5e3c11144e557a9dbf9a2f6abe444689ef9d8aae
Patch
git.kernel.org / stable/c/8cbf4ae7a2833767d63114573e5f9a45740cc975
Patch