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CVE-2022-50353

mmc: wmt-sdmmc: fix return value check of mmc_add_host() PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 3a96dff0f828ae9dfb43efd49a9b67a74c6dc360 before 70b0620afab3c69d95a7e2dd7ceff162a21c4009; affected 3a96dff0f828ae9dfb43efd49a9b67a74c6dc360 before ecd6f77af3478f5223aa4011642a891b7dc91228; affected 3a96dff0f828ae9dfb43efd49a9b67a74c6dc360 before c7a328cea791cc2769b6417943939420913b4a46; affected 3a96dff0f828ae9dfb43efd49a9b67a74c6dc360 before 9bedf64dda84b29151e41591d8ded9ff0e6d336a; affected 3a96dff0f828ae9dfb43efd49a9b67a74c6dc360 before 58c3a8d0f1abeb1ca5c2df948be58ad4f7bb6f67; affected 3a96dff0f828ae9dfb43efd49a9b67a74c6dc360 before b40ac3b696a9c84b36211ef0c3f5a422650c101b; affected 3a96dff0f828ae9dfb43efd49a9b67a74c6dc360 before eb7a2d516d4fbd165c07877a20feccb047342b1f; affected 3a96dff0f828ae9dfb43efd49a9b67a74c6dc360 before 29276d56f6ed138db0f38cd31aedc0b725c8c76c
Linux / Linuxaffected 3.8; unaffected 0 before 3.8; unaffected 4.14.303 through 4.14.*; unaffected 4.19.270 through 4.19.*; unaffected 5.4.229 through 5.4.*; unaffected 5.10.163 through 5.10.*; unaffected 5.15.86 through 5.15.*; unaffected 6.0.16 through 6.0.*; unaffected 6.1.2 through 6.1.*; unaffected 6.2 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.