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CVE-2022-49159

17
FAUCET Score

CVE-2022-49159 is a kernel NULL pointer dereference vulnerability in the Linux kernel's qla2xxx SCSI driver. It arises from a race condition between the timeout handler and the done function, leading to an attempt to access freed memory. Rated Medium severity (CVSS 5.5), this local vulnerability (AV:L, AC:L, PR:L) can cause a denial of service (A:H) on affected systems. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.15, < 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:*:*:*:*:*:*:*:*

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
0.26%
Probability of exploitation in next 30 days
EPSS Percentile
18.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0026 is in the 73rd 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 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-2022-49159Moderate

kernel: scsi: qla2xxx: Implement ref count for SRB

Feb 26, 2025

References

git.kernel.org / stable/c/31e6cdbe0eae37badceb5e0d4f06cf051432fd77
Patch
git.kernel.org / stable/c/ceda7f794f3dfe272491e93e3e93049f8be5f07b
Patch
git.kernel.org / stable/c/e140723f78ff418c8df7d990e102e07b65c87d4a
Patch
git.kernel.org / stable/c/e17111dd2fda81c35f309b1e5b6ab35809a375e7
Patch