NULL pointer dereference in Linux

CVE-2026-53242

In the Linux kernel, the following vulnerability has been resolved: ALSA: PCM: Fix wait queue list corruption in snd_pcm_drain() on linked streams snd_pcm_drain() uses init_waitqueue_entry which does not clear entry.prev/next, and add_wa…

EPSS: 0.001 (2.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

  • Linux — versions 9baee36e8c5443411c4629afabafaff8a46a23fd, fc71f888994569f87d5bee20b1ac6c9c1e3a7a79, 629cf09464cf98670996ea5c191dc9743e6f3f00
  • Linux Linux_kernel — versions 7.0, 7.1

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-53242?
CVE-2026-53242 is a high-severity vulnerability in Linux, classified under NULL Pointer Dereference. CVSS score: 7.8/10. Published 2026-06-25.
How severe is CVE-2026-53242?
High severity. CVSS v3 base score is 7.8 out of 10.