Entreprise française de cybersécurité depuis 2004
☎ 03 60 47 09 81 - info@securiteinfo.com
☎ 03 60 47 09 81 - info@securiteinfo.com
In the Linux kernel, the following vulnerability has been resolved:usb: typec: displayport: Fix potential deadlockThe deadlock can occur due to a recursive lock acquisition of`cros_typec_altmode_data::mutex`.The call chain is as follows:1. cros_typec_altmode_work() acquires the mutex2. typec_altmode_vdm() -> dp_altmode_vdm() ->3. typec_altmode_exit() -> cros_typec_altmode_exit()4. cros_typec_altmode_exit() attempts to acquire the mutex againTo prevent this, defer the `typec_altmode_exit()` call by schedulingit rather than calling it directly from within the mutex-protectedcontext.
No PoCs from references.
- https://github.com/w4zu/Debian_security