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.
Metrics
CVSS 3.1 5.5/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 3a96dff0f828ae9dfb43efd49a9b67a74c6dc360, < 70b0620afab3c69d95a7e2dd7ceff162a21c4009; >= 3a96dff0f828ae9dfb43efd49a9b67a74c6dc360, < ecd6f77af3478f5223aa4011642a891b7dc91228; >= 3a96dff0f828ae9dfb43efd49a9b67a74c6dc360, < c7a328cea791cc2769b6417943939420913b4a46; >= 3a96dff0f828ae9dfb43efd49a9b67a74c6dc360, < 9bedf64dda84b29151e41591d8ded9ff0e6d336a; >= 3a96dff0f828ae9dfb43efd49a9b67a74c6dc360, < 58c3a8d0f1abeb1ca5c2df948be58ad4f7bb6f67; >= 3a96dff0f828ae9dfb43efd49a9b67a74c6dc360, < b40ac3b696a9c84b36211ef0c3f5a422650c101b; >= 3a96dff0f828ae9dfb43efd49a9b67a74c6dc360, < eb7a2d516d4fbd165c07877a20feccb047342b1f; >= 3a96dff0f828ae9dfb43efd49a9b67a74c6dc360, < 29276d56f6ed138db0f38cd31aedc0b725c8c76c |
| Linux | Linux | 3.8 |
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
Timeline
- Published
- Sep 17, 2025
- Last modified
- Jun 17, 2026
- NVD status
- Modified