CVE-2022-49498

low-risk
Published 2025-02-26

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.

Do I need to act?

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0.05% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (6)

Patch https://git.kernel.org/stable/c/011b559be832194f992f73d6c0d5485f5925a10b
Patch https://git.kernel.org/stable/c/1f2e28857be1e5c7db39bbc221332215fc5467e3
Patch https://git.kernel.org/stable/c/7784d22f81a29df2ec57ca90d54f93a35cbcd1a2
Patch https://git.kernel.org/stable/c/b2421a196cb0911ea95aec1050a0b830464c8fa6
Patch https://git.kernel.org/stable/c/b41ef7ad9238c22aa2e142f5ce4ce1a1a0d48123
Patch https://git.kernel.org/stable/c/f2c68c52898f623fe84518da4606538d193b0cca
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal