PT-2025-25887 · Linux+2 · Linux Kernel+2

Published 2022-08-25 · Updated 2026-04-20 · CVE-2022-49961

Positive Technologies (AI Summary)

CVSS v2.0

7.7

High

Base vector

AV:A/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue is related to the Linux kernel's bpf (Berkeley Packet Filter) functionality. It involves the propagation of precision markers for certain types of arguments, which is necessary for the verifier to correctly check the equivalence of states. Without this fix, the verifier may incorrectly prune states, allowing invalid programs to pass verification and potentially leading to out-of-bounds access. This problem is specific to privileged users with CAP BPF capabilities. A test case has been included to prevent future regressions.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Out of bounds Read

Unchecked Return Value

Weakness Enumeration

CWE-125

CWE-252

CWE-253

Related Identifiers

AZL-70214

BDU:2026-02037

CVE-2022-49961

OESA-2025-1876

OESA-2025-1877

RHSA-2023:2458

RHSA-2023_2458

Affected Products

Debian

Linux Kernel

Red Hat

References · 29

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49961.json · Exploit
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-49961 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2204-CVE-2022-49961 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2025-1877 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-49961 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-70214 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-38157 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-38079 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-49961 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-49961 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-38074 · Security Note
• https://git.kernel.org/stable/c/2fc31465c5373b5ca4edf2e5238558cb62902311 · Patch
• https://osv.dev/vulnerability/OESA-2025-1876 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-49961 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-49961 · Vendor Advisory