usb: typec: tcpm: fix use-after-free case in tcpm_register_source_caps
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.3%
exploitation probability
0.3%top 81% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
usb: typec: tcpm: fix use-after-free case in tcpm_register_source_caps
There could be a potential use-after-free case in
tcpm_register_source_caps(). This could happen when:
* new (say invalid) source caps are advertised
* the existing source caps are unregistered
* tcpm_register_source_caps() returns with an error as
usb_power_delivery_register_capabilities() fails
This causes port->partner_source_caps to hold on to the now freed source
caps.
Reset port->partner_source_caps value to NULL after unregistering
existing source caps.
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/04c05d50fa79a41582f7bde8a1fd4377ae4a39e5https://git.kernel.org/stable/c/4053696594d7235f3638d49a00cf0f289e4b36a3https://git.kernel.org/stable/c/6b67b652849faf108a09647c7fde9b179ef24e2bhttps://git.kernel.org/stable/c/e7e921918d905544500ca7a95889f898121ba886https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html