CVE-2021-47051: spi: fsl-lpspi: Fix PM reference leak in lpspi_prepare_xfer_hardware()
Vulnerability summary
CVE-2021-47051 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 13.2% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 3 · Related 3Timeline
- 28-02-2024PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.22%
Chance of exploitation in the next 30 days
Percentile
13%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.22% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu82 products
- linux< 5.4.0-77.86
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 5.4.0-1051.53
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 944c01a889d97dc08e1b71f4ed868f4023fd6034, < 4a01ad002d2e03c399af536562693752af7c81b1 | ≥ 944c01a889d97dc08e1b71f4ed868f4023fd6034, < ce02e58ddf8658a4c3bed2296f32a5873b3f7cce | ≥ 944c01a889d97dc08e1b71f4ed868f4023fd6034, < b8207bfc539cd07d15e753ff2d179c5b61c673b1 | ≥ 944c01a889d97dc08e1b71f4ed868f4023fd6034, < 6a2b5cee0d31ab6cc51030c441135b0e31217282 | ≥ 944c01a889d97dc08e1b71f4ed868f4023fd6034, < a03675497970a93fcf25d81d9d92a59c2d7377a7 | 5.2
- linux_kernel≥ 5.2, < 5.4.119 | ≥ 5.5, < 5.10.37 | ≥ 5.11, < 5.11.21 | ≥ 5.12, < 5.12.4
Debian1 product
- linux< 5.10.38-1
3 vendors · 85 products
