Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 3.0, < 4.9.337 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/0613ad2401f88bdeae5594c30afe318e93b14676Patch
- https://git.kernel.org/stable/c/2044b2ea77945f372ef161d1bbf814e471767ff2Patch
- https://git.kernel.org/stable/c/25f05d762ca5e1c685002a53dd44f68e78ca3febPatch
- https://git.kernel.org/stable/c/3049a3b927a40d89d4582ff1033cd7953be773c7Patch
- https://git.kernel.org/stable/c/3b29f8769d32016b2d89183db4d80c7a71b7e35ePatch
- https://git.kernel.org/stable/c/41ed46bdbd2878cd6567abe0974a445f8b1b8ec8Patch
- https://git.kernel.org/stable/c/a46e681151bbdacdf6b89ee8c4e5bad0555142bbPatch
- https://git.kernel.org/stable/c/afc898019e7bf18c5eb7a0ac19852fcb1b341b3cPatch
- https://git.kernel.org/stable/c/c9e85979b59cb86f0a15defa8199d740e2b36b90Patch
FAQ
What is CVE-2022-50251?
CVE-2022-50251 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 t...
How severe is CVE-2022-50251?
CVE-2022-50251 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-50251?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.