CVE-2022-49498

ALSA: pcm: Check for null pointer of pointer substream before dereferencing it

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.02%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/stable/c/b2421a196cb0911ea95aec1050a0b830464c8fa6 patch
https://git.kernel.org/stable/c/f2c68c52898f623fe84518da4606538d193b0cca patch
https://git.kernel.org/stable/c/7784d22f81a29df2ec57ca90d54f93a35cbcd1a2 patch
https://git.kernel.org/stable/c/1f2e28857be1e5c7db39bbc221332215fc5467e3 patch
https://git.kernel.org/stable/c/b41ef7ad9238c22aa2e142f5ce4ce1a1a0d48123 patch
https://git.kernel.org/stable/c/011b559be832194f992f73d6c0d5485f5925a10b patch

Frequently Asked Questions

What is the severity of CVE-2022-49498?
CVE-2022-49498 has been scored as a medium severity vulnerability.
How to fix CVE-2022-49498?
To fix CVE-2022-49498, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-49498 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-49498 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-49498?
CVE-2022-49498 affects Linux Linux, Linux Linux.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.