HID: usbhid: fix deadlock in hid_post_reset()
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.1%
exploitation probability
0.1%top 99% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
HID: usbhid: fix deadlock in hid_post_reset()
You can build a USB device that includes a HID component
and a storage or UAS component. The components can be reset
only together. That means that hid_pre_reset() and hid_post_reset()
are in the block IO error handling. Hence no memory allocation
used in them may do block IO because the IO can deadlock
on the mutex held while resetting a device and calling the
interface drivers.
Use GFP_NOIO for all allocations in them.
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/4e900465296ce9fb12ed47dc77389b8dde95bfe0https://git.kernel.org/stable/c/56d318ef8766f0deb08517fd8f3007256ea7997dhttps://git.kernel.org/stable/c/8df2c1b47ee3cd50fd454f75c7a7e2ae8a6adf72https://git.kernel.org/stable/c/90550af0aad5e75110073c501e4fb42fca20ff80https://git.kernel.org/stable/c/ad4505d2ab3aaac6498f17649608e70e80034bf2https://git.kernel.org/stable/c/b3d16611d7cd78e9d5c6baa19b61b7caf9f1ab5ehttps://git.kernel.org/stable/c/c7abd0e6c87441e99c759d40eb6fe589634e3041https://git.kernel.org/stable/c/eeceb6f4dd42065fdda3a526a93d08b8fb90fb69