CVEvulnerability
CVE-2026-64481
7.8 HIGH
Official page ↗
- Status
- Received
- Published
- 2026-07-25
- Last modified
- 2026-10-21
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-416
Description
In the Linux kernel, the following vulnerability has been resolved:
ALSA: hda/cs35l41: Fix firmware load work teardown
cs35l41_hda creates ALSA controls whose private data points at the
cs35l41_hda object. The firmware load control can also queue
fw_load_work.
Those controls are not removed on component unbind, and device remove
only cancels fw_load_work through cs35l41_remove_dsp(). That helper is
skipped when halo_initialized is false. With firmware_autostart
disabled, a firmware load can be requested before the DSP has been
initialized. If the component or device is removed before the queued
work runs, the worker can run after teardown and dereference driver
state that is no longer valid.
Track the created controls and remove them on unbind so no new control
callback can reach the driver data or queue more work. Then cancel
fw_load_work to drain any request that was already queued. Also cancel
the work unconditionally during device remove before runtime PM teardown.
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- https://git.kernel.org/stable/c/3e339c88b8c3044919fd1936a8b23124285d0de6 git.kernel.org
- https://git.kernel.org/stable/c/8947215c0136c9d905e4a46d824824f8b48a2e5b git.kernel.org
- https://git.kernel.org/stable/c/b65020d5398f499c09498c9786dba6d67ae57664 git.kernel.org
- https://git.kernel.org/stable/c/ce0a903d0591e3e2c790c5b628802b08d1b287cc git.kernel.org
- https://git.kernel.org/stable/c/d6a40a4d083ef74d00c8f9516cb5ff07ac70720b git.kernel.org