CVE-2022-50305

Summary

In the Linux kernel, the following vulnerability has been resolved:

ASoC: sof_es8336: fix possible use-after-free in sof_es8336_remove()

sof_es8336_remove() calls cancel_delayed_work(). However, that function does not wait until the work function finishes. This means that the callback function may still be running after the driver's remove function has finished, which would result in a use-after-free.

Fix by calling cancel_delayed_work_sync(), which ensures that the work is properly cancelled, no longer running, and unable to re-schedule itself.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxb60ee210a76cabdc2dd5396de299a1860b4945cd < b85102a3aa3810a09eb55692e8cd6ffbb304e57daffected
LinuxLinux89cdb224f2abe37ec4ac21ba0d9ddeb5a6a9cf68 < 390a1a98288a53b2e7555097d83c6e55d579b166affected
LinuxLinux89cdb224f2abe37ec4ac21ba0d9ddeb5a6a9cf68 < 1b41beaa7a58467505ec3023af8aad74f878b888affected
LinuxLinux6.0.11 < 6.0.16affected
LinuxLinux6.1affected
LinuxLinux0 < 6.1unaffected
LinuxLinux6.0.16 <= 6.0.*unaffected
LinuxLinux6.1.2 <= 6.1.*unaffected
LinuxLinux6.2 <= *unaffected

Weaknesses

References