PT-2026-64706 · Linux · Linux
CVE-2026-64485
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Publicado
2026-07-25
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Atualizado
2026-07-25
Nenhuma
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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.
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