CVE-2026-46240 – media: iris: Fix use-after-free in iris_release_internal_buffers()

CVE ID :CVE-2026-46240

Published : May 28, 2026, 10:16 a.m. | 15 minutes ago

Description :In the Linux kernel, the following vulnerability has been resolved:

media: iris: Fix use-after-free in iris_release_internal_buffers()

The recent change in commit 1dabf00ee206 (“media: iris: gen1: Destroy
internal buffers after FW releases”) introduced a regression where
session_release_buf() may free the buffer. The caller,
iris_release_internal_buffers(), continued to access `buffer` after the
call, leading to a potential use-after-free.

Fix this by setting BUF_ATTR_PENDING_RELEASE before calling
session_release_buf(), and reverting the flag if the call fails. This
ensures no dereference occurs after potential freeing.

Severity: 0.0 | NA

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