CVEvulnerability
CVE-2021-47051
5.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2024-02-28
- 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
Description
In the Linux kernel, the following vulnerability has been resolved:
spi: fsl-lpspi: Fix PM reference leak in lpspi_prepare_xfer_hardware()
pm_runtime_get_sync will increment pm usage counter even it failed.
Forgetting to putting operation will result in reference leak here.
Fix it by replacing it with pm_runtime_resume_and_get to keep usage
counter balanced.
Affected configurations
• linux linux kernel (>= 5.2 < 5.4.119)
• linux linux kernel (>= 5.5 < 5.10.37)
• linux linux kernel (>= 5.11 < 5.11.21)
• linux linux kernel (>= 5.12 < 5.12.4)
References
- https://git.kernel.org/stable/c/4a01ad002d2e03c399af536562693752af7c81b1 Patch
- https://git.kernel.org/stable/c/6a2b5cee0d31ab6cc51030c441135b0e31217282 Patch
- https://git.kernel.org/stable/c/a03675497970a93fcf25d81d9d92a59c2d7377a7 Patch
- https://git.kernel.org/stable/c/b8207bfc539cd07d15e753ff2d179c5b61c673b1 Patch
- https://git.kernel.org/stable/c/ce02e58ddf8658a4c3bed2296f32a5873b3f7cce Patch
- https://git.kernel.org/stable/c/4a01ad002d2e03c399af536562693752af7c81b1 Patch
- https://git.kernel.org/stable/c/6a2b5cee0d31ab6cc51030c441135b0e31217282 Patch
- https://git.kernel.org/stable/c/a03675497970a93fcf25d81d9d92a59c2d7377a7 Patch
- https://git.kernel.org/stable/c/b8207bfc539cd07d15e753ff2d179c5b61c673b1 Patch
- https://git.kernel.org/stable/c/ce02e58ddf8658a4c3bed2296f32a5873b3f7cce Patch