CVE-2022-50353
In the Linux kernel, the following vulnerability has been resolved: mmc: wmt-sdmmc: 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 (0.20%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux kernel, the following vulnerability has been resolved: mmc: wmt-sdmmc: 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, clk_disable_unprepare() also needs be called.
- 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
- 0.20% probability · 10th 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/29276d56f6ed138db0f38cd31aedc0b725c8c76cPatch
- https://git.kernel.org/stable/c/58c3a8d0f1abeb1ca5c2df948be58ad4f7bb6f67Patch
- https://git.kernel.org/stable/c/70b0620afab3c69d95a7e2dd7ceff162a21c4009Patch
- https://git.kernel.org/stable/c/9bedf64dda84b29151e41591d8ded9ff0e6d336aPatch
- https://git.kernel.org/stable/c/b40ac3b696a9c84b36211ef0c3f5a422650c101bPatch
- https://git.kernel.org/stable/c/c7a328cea791cc2769b6417943939420913b4a46Patch
- https://git.kernel.org/stable/c/eb7a2d516d4fbd165c07877a20feccb047342b1fPatch
- https://git.kernel.org/stable/c/ecd6f77af3478f5223aa4011642a891b7dc91228Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.