Improper Check or Handling of Exceptional Conditions in Linux kernel - CVE-2026-72260
Published: August 16, 2026
Vulnerability details
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper exception handling in mt8192_afe_pcm_dev_probe() when probing the MT8192 AFE device and reinitializing the regmap cache during runtime power management resume. A local user can trigger device probe under conditions where runtime resume fails to cause a denial of service.
The issue can leave the power management usage count incremented and continue probe while the device may not be accessible.
Affected software
Ubuntu
linux-gcp-7.0 (Ubuntu package)
linux-azure-7.0 (Ubuntu package)
How to mitigate CVE-2026-72260
linux-gcp-7.0 (Ubuntu package) - addressed in versions 7.0.0-38.38~24.04.4, 7.0.0-1013.13~24.04.1, 7.0.0-1014.14~24.04.1
linux-azure-7.0 (Ubuntu package) - addressed in versions 7.0.0-1016.16~24.04.1, 7.0.0-1017.17~24.04.1
External References
- 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