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CVE-2022-49607

15
FAUCET Score

CVE-2022-49607 describes a data race vulnerability in the Linux kernel's perf subsystem, specifically affecting the perf/core component. This race condition between perf_event_set_output() and perf_mmap_close() can lead to a denial of service. With a CVSS score of 4.7 (MEDIUM), an attacker with low privileges and high attack complexity could cause a system crash. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.2.49, < 3.3CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.4.52, < 3.5CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.9.8, < 4.9.325CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.10, < 4.14.290CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.15, < 4.19.254CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

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
0.19%
Probability of exploitation in next 30 days
EPSS Percentile
8.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0019 is in the 44th 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-2022-49607Moderate

kernel: perf/core: Fix data race between perf_event_set_output() and perf_mmap_close()

Feb 26, 2025

References

git.kernel.org / stable/c/17f5417194136517ee9bbd6511249e5310e5617c
Patch
git.kernel.org / stable/c/3bbd868099287ff9027db59029b502fcfa2202a0
Patch
git.kernel.org / stable/c/43128b3eee337824158f34da6648163d2f2fb937
Patch
git.kernel.org / stable/c/68e3c69803dada336893640110cb87221bb01dcf
Patch
git.kernel.org / stable/c/98c3c8fd0d4c560e0f8335b79c407bbf7fc9462c
Patch
git.kernel.org / stable/c/a9391ff7a7c5f113d6f2bf6621d49110950de49c
Patch
git.kernel.org / stable/c/da3c256e2d0ebc87c7db0c605c9692b6f1722074
Patch
git.kernel.org / stable/c/f836f9ac95df15f1e0af4beb0ec20021e8c91998
Patch