CVEvulnerability
CVE-2026-72260
- Status
- Received
- Published
- 2026-08-15
- Last modified
- 2026-08-23
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In the Linux kernel, the following vulnerability has been resolved:
ASoC: mediatek: mt8192: Check runtime resume during probe
The MT8192 AFE probe enables runtime PM temporarily while reinitializing
the regmap cache from hardware, but it uses pm_runtime_get_sync()
without checking the return value. If runtime resume fails, probe keeps
going without the device necessarily being accessible, and
pm_runtime_get_sync() may leave the PM usage count incremented.
The regmap_reinit_cache() failure path also returns before dropping the
temporary PM reference and before clearing pm_runtime_bypass_reg_ctl.
Use pm_runtime_resume_and_get() so resume failures do not leak a usage
count, and clear the temporary bypass flag after dropping the probe PM
reference on all regmap_reinit_cache() outcomes.
References
- https://git.kernel.org/stable/c/6e2ee6eacc3ec7b339753abcf33812d27e03efe5 git.kernel.org
- https://git.kernel.org/stable/c/91b20e8c9b64042056d14394c89c81fc16a1c327 git.kernel.org
- https://git.kernel.org/stable/c/9339266a8a720889d0385cfd78ba6652fe7bb1a8 git.kernel.org
- https://git.kernel.org/stable/c/e0f276f1918a202e9c3ac72baffd311cecb6b8db git.kernel.org
- https://git.kernel.org/stable/c/e24d5dde56a50946020b134fa8448869093db76a git.kernel.org
- https://git.kernel.org/stable/c/f6e424835cc05d215c57b6370b2c1e353dd02915 git.kernel.org
- https://git.kernel.org/stable/c/faa97a1a6cab01cd3e2055deb4db4e57efc43ff2 git.kernel.org