CVE-2022-50267
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…
Does this matter?
Lower severity and a low EPSS score (0.15%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.15% probability · 5th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.