CVE-2026-72260

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux125ab5d588b0b3b842064c4d53a666ca74521ae8 < 6e2ee6eacc3ec7b339753abcf33812d27e03efe5affected
LinuxLinux125ab5d588b0b3b842064c4d53a666ca74521ae8 < faa97a1a6cab01cd3e2055deb4db4e57efc43ff2affected
LinuxLinux125ab5d588b0b3b842064c4d53a666ca74521ae8 < e0f276f1918a202e9c3ac72baffd311cecb6b8dbaffected
LinuxLinux125ab5d588b0b3b842064c4d53a666ca74521ae8 < f6e424835cc05d215c57b6370b2c1e353dd02915affected
LinuxLinux125ab5d588b0b3b842064c4d53a666ca74521ae8 < e24d5dde56a50946020b134fa8448869093db76aaffected
LinuxLinux5.11affected
LinuxLinux0 < 5.11unaffected
LinuxLinux6.6.148 <= 6.6.*unaffected
LinuxLinux6.12.101 <= 6.12.*unaffected
LinuxLinux6.18.40 <= 6.18.*unaffected
LinuxLinux7.1.5 <= 7.1.*unaffected
LinuxLinux7.2 <= *unaffected

Weaknesses

References