CVEvulnerability
CVE-2022-50353
5.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2025-09-17
- Last modified
- 2026-06-17
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-476
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.
Affected configurations
• linux linux kernel (>= 3.8 < 4.14.303)
• linux linux kernel (>= 4.15 < 4.19.270)
• linux linux kernel (>= 4.20 < 5.4.229)
• linux linux kernel (>= 5.5 < 5.10.163)
• linux linux kernel (>= 5.11 < 5.15.86)
• linux linux kernel (>= 5.16 < 6.0.16)
• linux linux kernel (>= 6.1 < 6.1.2)
Related
Weakness · CWE (1)
- CWE-476 NULL Pointer Dereference weakness
References
- https://git.kernel.org/stable/c/29276d56f6ed138db0f38cd31aedc0b725c8c76c Patch
- https://git.kernel.org/stable/c/58c3a8d0f1abeb1ca5c2df948be58ad4f7bb6f67 Patch
- https://git.kernel.org/stable/c/70b0620afab3c69d95a7e2dd7ceff162a21c4009 Patch
- https://git.kernel.org/stable/c/9bedf64dda84b29151e41591d8ded9ff0e6d336a Patch
- https://git.kernel.org/stable/c/b40ac3b696a9c84b36211ef0c3f5a422650c101b Patch
- https://git.kernel.org/stable/c/c7a328cea791cc2769b6417943939420913b4a46 Patch
- https://git.kernel.org/stable/c/eb7a2d516d4fbd165c07877a20feccb047342b1f Patch
- https://git.kernel.org/stable/c/ecd6f77af3478f5223aa4011642a891b7dc91228 Patch