CVE-2022-50267
MEDIUM severity · CVSS 5.5 · CWE-476
5.5CVSS MEDIUM
Summary
In the Linux kernel, the following vulnerability has been resolved: mmc: rtsx_pci: 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 calling mmc_free_host() in the error path, beside, runtime PM also needs be disabled.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/0c87db77423a282b3b38b8a6daf057b822680516 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/0c87db77423a282b3b38b8a6daf057b822680516Patch
- https://git.kernel.org/stable/c/30dc645461dfc63e52b3af8ee4a98e17bf14bacfPatch
- https://git.kernel.org/stable/c/5cd4e04eccaec140da6fa04db056a76282ee6852Patch
- https://git.kernel.org/stable/c/ffa9b2a79e3e959683efbad3f6db937eca9d38f5Patch