In the Linux kernel, the following vulnerability has been resolved: ASoC: mediatek: mt8192:...
🔗 CVE IDs covered (1)
📋 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 (7)
- https://nvd.nist.gov/vuln/detail/CVE-2026-72260
- https://git.kernel.org/stable/c/6e2ee6eacc3ec7b339753abcf33812d27e03efe5
- https://git.kernel.org/stable/c/e0f276f1918a202e9c3ac72baffd311cecb6b8db
- https://git.kernel.org/stable/c/e24d5dde56a50946020b134fa8448869093db76a
- https://git.kernel.org/stable/c/f6e424835cc05d215c57b6370b2c1e353dd02915
- https://git.kernel.org/stable/c/faa97a1a6cab01cd3e2055deb4db4e57efc43ff2
- https://github.com/advisories/GHSA-g833-2rhh-96rv