uacce: fix cdev handling in the cleanup path
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.1%
exploitation probability
0.1%top 98% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
uacce: fix cdev handling in the cleanup path
When cdev_device_add fails, it internally releases the cdev memory,
and if cdev_device_del is then executed, it will cause a hang error.
To fix it, we check the return value of cdev_device_add() and clear
uacce->cdev to avoid calling cdev_device_del in the uacce_remove.
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/1bc3e51367c420e6db31f41efa874c7a8e12194ahttps://git.kernel.org/stable/c/819d647406200d0e83e56fd2df8f451b11290559https://git.kernel.org/stable/c/98d67a1bd6caddd0a8b8c82a0b925742cf500936https://git.kernel.org/stable/c/a3bece3678f6c88db1f44c602b2a63e84b4040achttps://git.kernel.org/stable/c/bd2393ed7712513e7e2dbcb6e21464a67ff9e702https://git.kernel.org/stable/c/c94c7188d325bc5137d447d67a2f18f7d4f2f4a3https://git.kernel.org/stable/c/d9031575a2f8aabc53af3025dd79af313a2e046b