CVE-2026-64485 is a vulnerability in Linux Kernel
Published on July 25, 2026
ALSA: compress: Fix task creation error unwind
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.
Products Associated with CVE-2026-64485
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Affected Versions
Linux:- Version 04177158cf98a79744937893b100020d77e6f9ac and below b27a75d42044d9d4709095617730b91b1c4af423 is affected.
- Version 04177158cf98a79744937893b100020d77e6f9ac and below 426a9947a38d272d0e19c031658da68e31128667 is affected.
- Version 04177158cf98a79744937893b100020d77e6f9ac and below 4a60127debb9e370d6c0e22a307326b624a141f3 is affected.
- Version 6.13 is affected.
- Before 6.13 is unaffected.
- Version 6.18.39, <= 6.18.* is unaffected.
- Version 7.1.4, <= 7.1.* is unaffected.
- Version 7.2-rc1, <= * is unaffected.