usb: typec: tcpci_rt1711h: unregister TCPCI port with devres
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.8epss 0.1%
exploitation probability
0.1%top 96% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
usb: typec: tcpci_rt1711h: unregister TCPCI port with devres
rt1711h_probe() registers the TCPCI port before requesting the interrupt
and enabling alert interrupts. If either of those later steps fails, the
probe function returns without unregistering the TCPCI port. The explicit
unregister currently only happens from the remove callback.
Register a devres action immediately after tcpci_register_port() succeeds,
so tcpci_unregister_port() runs on later probe failures and on driver
detach. Drop the remove callback to avoid unregistering the same port
twice.
This issue was identified during our ongoing static-analysis research while
reviewing kernel code.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/569f18a83eed0b0be4615f0c7bed40fb5c50e2e6https://git.kernel.org/stable/c/94b1abf1af94aa5a355e9f03675e07bccfc41c4bhttps://git.kernel.org/stable/c/ce2e36e8759dfbfe546723810c306f42f484866dhttps://git.kernel.org/stable/c/e5406c8fb71cd2f89a46300a746f6e7972e621e8https://git.kernel.org/stable/c/e8da46d99d3710106e7c44db14566bf9b57386b5