PT-2025-8431 · Linux+2 · Linux Kernel+2

Colin Ian King · Published 2022-06-09 · Updated 2025-04-15 · CVE-2022-49498

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

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

Description A null pointer dereference issue has been identified in the Linux kernel, specifically in the ALSA pcm component. The issue arises when a pointer substream is dereferenced before a null check is performed using the PCM RUNTIME CHECK macro. Although PCM RUNTIME CHECK calls BUG ON, it is still beneficial to perform the pointer check before assigning the card variable.

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

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2026-03122

CVE-2022-49498

OPENSUSE-SU-2025_1263-1

SUSE-SU-2025:1027-1

SUSE-SU-2025:1176-1

SUSE-SU-2025:1183-1

SUSE-SU-2025:1194-1

SUSE-SU-2025:1241-1

SUSE-SU-2025:1263-1

SUSE-SU-2025_1027-1

SUSE-SU-2025_1241-1

SUSE-SU-2025_1263-1

Affected Products

Astra Linux

Linux Kernel

Suse

References · 1349

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49498.json · Exploit
• https://git.kernel.org/stable/c/011b559be832194f992f73d6c0d5485f5925a10b · Patch
• https://git.kernel.org/stable/c/b41ef7ad9238c22aa2e142f5ce4ce1a1a0d48123 · Patch
• https://git.kernel.org/stable/c/1f2e28857be1e5c7db39bbc221332215fc5467e3 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-49498 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1194-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1263-1 · Vendor Advisory
• https://git.kernel.org/stable/c/7784d22f81a29df2ec57ca90d54f93a35cbcd1a2 · Patch
• https://security-tracker.debian.org/tracker/CVE-2022-49498 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-03122 · Security Note
• https://git.kernel.org/stable/c/b2421a196cb0911ea95aec1050a0b830464c8fa6 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:1183-1 · Vendor Advisory
• https://git.kernel.org/stable/c/f2c68c52898f623fe84518da4606538d193b0cca · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-49498 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:1176-1 · Vendor Advisory