Detections
Analytics
CVE-2022-50251
medium
Description
In the Linux kernel, the following vulnerability has been resolved: mmc: vub300: fix return value check of mmc_add_host() mmc_add_host() may return error, if we ignore its return value, the memory that allocated in mmc_alloc_host() will be leaked and it will lead a kernel crash because of deleting not added device in the remove path. So fix this by checking the return value and goto error path which will call mmc_free_host(), besides, the timer added before mmc_add_host() needs be del. And this patch fixes another missing call mmc_free_host() if usb_control_msg() fails.
References
https://git.kernel.org/stable/c/c9e85979b59cb86f0a15defa8199d740e2b36b90
https://git.kernel.org/stable/c/afc898019e7bf18c5eb7a0ac19852fcb1b341b3c
https://git.kernel.org/stable/c/a46e681151bbdacdf6b89ee8c4e5bad0555142bb
https://git.kernel.org/stable/c/41ed46bdbd2878cd6567abe0974a445f8b1b8ec8
https://git.kernel.org/stable/c/3b29f8769d32016b2d89183db4d80c7a71b7e35e
https://git.kernel.org/stable/c/3049a3b927a40d89d4582ff1033cd7953be773c7
https://git.kernel.org/stable/c/25f05d762ca5e1c685002a53dd44f68e78ca3feb
https://git.kernel.org/stable/c/2044b2ea77945f372ef161d1bbf814e471767ff2
https://git.kernel.org/stable/c/0613ad2401f88bdeae5594c30afe318e93b14676