What is CVE-2022-49548?

CVE-2022-49548 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, affecting Linux kernel versions from 5.7 onward and patched in 5.10.120, 5.15.45, 5.17.13 and others. CVE-2022-49548 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49548?

CVE-2022-49548 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2022-49548?

Yes, CVE-2022-49548 has been patched. Fixed versions include 5.10.120, 5.15.45, 5.17.13 and others. If you are running Linux kernel 5.7 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-49548 actively exploited?

CVE-2022-49548 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-49548

High

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix potential array overflow in bpf_trampoline_get_progs() The cnt value in the 'cnt >= BPF_MAX_TRAMP_PROGS' check does not include BPF_TRAMP_MODIFY_RETURN bpf programs, so the number of the attached BPF_TRAMP_MODIFY_RETURN bpf programs in a trampoline can exceed BPF_MAX_TRAMP_PROGS. When this happens, the assignment '*progs++ = aux->prog' in bpf_trampoline_get_progs() will cause progs array overflow as the progs field in the bpf_tramp_progs struct can only hold at most BPF_MAX_TRAMP_PROGS bpf programs.

Package Linux Kernel

Published 2025-02-26

Last modified 2025-10-01

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-129

CVE-2022-49548 is classified as CWE-129

See CWE-129 on MITRE CWE for full details on this weakness type.

Affected versions

Linux kernel versions 5.7 and later are affected. Fixed in 5.10.120, 5.15.45, 5.17.13, 5.18.2, 5.19 and their respective stable series.

Affected from

≥ 5.7

Fixed in

✓ 5.10.120 5.10.x ✓ 5.15.45 5.15.x ✓ 5.17.13 5.17.x ✓ 5.18.2 5.18.x ✓ 5.19

References

The following references provide additional information about CVE-2022-49548 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/32c4559c61652f24c9fdd5440342196fe37453bc
Patch
Kernel patch commit
https://git.kernel.org/stable/c/4f8897bcc20b9ae44758e0572538d741ab66f0dc
Patch
Kernel patch commit
https://git.kernel.org/stable/c/7f845de2863334bed4f362e95853f5e7bc323737
Patch

5 patch commits total View all on NVD

Details

CVE ID CVE-2022-49548

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2025-02-26

Modified 2025-10-01

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-49548?

CVE-2022-49548 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . It affects Linux kernel versions from 5.7 onward and has been patched in 5.10.120, 5.15.45, 5.17.13 and others. CVE-2022-49548 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49548?

CVE-2022-49548 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2022-49548?

Yes — CVE-2022-49548 has been patched. Fixed versions include 5.10.120, 5.15.45, 5.17.13 and others. If you are running Linux kernel 5.7 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-49548 actively exploited?

No — CVE-2022-49548 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.