drivers/video/fbdev/smscufx.c in the Linux kernel through 5.19.12 has a race condition and resultant use-after-free if a physically proximate attacker removes a USB device while calling open(), aka a race condition between ufx_ops_open and ufx_usb_disconnect.
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
Link | Tags |
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https://lore.kernel.org/all/20220925133243.GA383897%40ubuntu/T/ | |
https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html | third party advisory mailing list |
https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html | third party advisory mailing list |
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5610bcfe8693c02e2e4c8b31427f1bdbdecc839c |