Vulnerability in Linux

CVE-2026-64485

In the Linux kernel, the following vulnerability has been resolved: ALSA: compress: Fix task creation error unwind snd_compr_task_new() allocates the driver task before validating the returned DMA buffers and reserving file descriptors. When either of those later steps fails, the core frees its task wrapper and DMA-buffer references without calling the driver's task_free() callback. Any driver resources allocated by task_create() are therefore leaked. The dual-fd allocation path also jumps to cleanup without storing the negative get_unused_fd_flags() result in retval. Since retval still contains the successful task_create() return value, TASK_CREATE can incorrectly report success although the task was discarded. Preserve the fd allocation errors and call task_free() when failure occurs after a successful task_create() callback.

EPSS: 0.001 (3.4th 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 7.2-rc1, 7.2, 6.13

References

Frequently asked questions

What is CVE-2026-64485?
CVE-2026-64485 is a high-severity vulnerability in Linux. CVSS score: 7.8/10. Published 2026-07-25.
How severe is CVE-2026-64485?
High severity. CVSS v3 base score is 7.8 out of 10.