CVE-2022-50251

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 v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/0613ad2401f88bdeae5594c30afe318e93b14676	Patch
https://git.kernel.org/stable/c/2044b2ea77945f372ef161d1bbf814e471767ff2	Patch
https://git.kernel.org/stable/c/25f05d762ca5e1c685002a53dd44f68e78ca3feb	Patch
https://git.kernel.org/stable/c/3049a3b927a40d89d4582ff1033cd7953be773c7	Patch
https://git.kernel.org/stable/c/3b29f8769d32016b2d89183db4d80c7a71b7e35e	Patch
https://git.kernel.org/stable/c/41ed46bdbd2878cd6567abe0974a445f8b1b8ec8	Patch
https://git.kernel.org/stable/c/a46e681151bbdacdf6b89ee8c4e5bad0555142bb	Patch
https://git.kernel.org/stable/c/afc898019e7bf18c5eb7a0ac19852fcb1b341b3c	Patch
https://git.kernel.org/stable/c/c9e85979b59cb86f0a15defa8199d740e2b36b90	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2025-09-15 14:15

Updated : 2025-11-26 16:25

NVD link : CVE-2022-50251

Mitre link : CVE-2022-50251

CVE.ORG link : CVE-2022-50251

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-401

Missing Release of Memory after Effective Lifetime

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