CVE-2022-49498

MEDIUM EPSS 15.9%
Published Feb 26, 20251y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Feb 26, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Check for null pointer of pointer substream before dereferencing it Pointer substream is being dereferenced on the assignment of pointer card before substream is being null checked with the macro PCM_RUNTIME_CHECK. Although PCM_RUNTIME_CHECK calls BUG_ON, it still is useful to perform the the pointer check before card is assigned.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
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 None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
15.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 4

VendorProductVersionRange
linuxlinux_kernel*≥5.6  –  <5.10.121
linuxlinux_kernel*≥5.11  –  <5.15.46
linuxlinux_kernel*≥5.16  –  <5.17.14
linuxlinux_kernel*≥5.18  –  <5.18.3

References 6

  • git.kernel.org https://git.kernel.org/stable/c/011b559be832194f992f73d6c0d5485f5925a10b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1f2e28857be1e5c7db39bbc221332215fc5467e3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7784d22f81a29df2ec57ca90d54f93a35cbcd1a2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b2421a196cb0911ea95aec1050a0b830464c8fa6
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b41ef7ad9238c22aa2e142f5ce4ce1a1a0d48123
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f2c68c52898f623fe84518da4606538d193b0cca
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/011b559be832194f992f73d6c0d5485f5925a10b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1f2e28857be1e5c7db39bbc221332215fc5467e3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7784d22f81a29df2ec57ca90d54f93a35cbcd1a2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b2421a196cb0911ea95aec1050a0b830464c8fa6
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b41ef7ad9238c22aa2e142f5ce4ce1a1a0d48123
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f2c68c52898f623fe84518da4606538d193b0cca
    Patch