CVE-2022-50520: drm/radeon: Fix PCI device refcount leak in radeon_atrm_get_bios()
Vulnerability summary
CVE-2022-50520 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 5.9% 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 6 · Related 4Timeline
- 07-10-2025PublishedVulnerability first disclosed.
- 23-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: drm/radeon: Fix PCI device refcount leak in radeon_atrm_get_bios() As comment of pci_get_class() says, it returns a pci_device with its refcount increased and decreased the refcount for the input parameter @from if it is not NULL. If we break the loop in radeon_atrm_get_bios() with 'pdev' not NULL, we need to call pci_dev_put() to decrease the refcount. Add the missing pci_dev_put() to avoid refcount leak.
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
0.17%
Chance of exploitation in the next 30 days
Percentile
6%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.16% 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.
Ubuntu120 products
- linuxAll versions (No fix recorded) | < 4.15.0-208.220 | < 5.4.0-144.161 | < 5.15.0-69.76
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 4.15.0-1153.166 | < 5.4.0-1097.105 | < 5.15.0-1033.37
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ c61e2775873f603148e8e998a938721b7d222d24, < 6f28c7f67af4ef9bca580ab67ae2d4511797af56 | ≥ c61e2775873f603148e8e998a938721b7d222d24, < e738f82e5b1311e8fb3d1409491a6fcce6418fbe | ≥ c61e2775873f603148e8e998a938721b7d222d24, < 1079df6acf56f99d86b0081a38c84701412cc90e | ≥ c61e2775873f603148e8e998a938721b7d222d24, < 470a77989037c3ab2b08bf2d026d2c0ddc35ff5b | ≥ c61e2775873f603148e8e998a938721b7d222d24, < 3991d98a8a07b71c02f3a39f77d6d9a7f575a5c4 | ≥ c61e2775873f603148e8e998a938721b7d222d24, < 88c6e0995c04b170563b5c894c50a3b2152e18c2 | ≥ c61e2775873f603148e8e998a938721b7d222d24, < b9decada8749b606fd8b4f04a3d6c74f7983d7bc | ≥ c61e2775873f603148e8e998a938721b7d222d24, < a6cffe54064a5f6c2162a85af3c16c6b453eac4e | ≥ c61e2775873f603148e8e998a938721b7d222d24, < 725a521a18734f65de05b8d353b5bd0d3ca4c37a | 61ebf0a926149cc161131470cf848cb70b3d6fe6 | 0a1d9a860832a5ca43114cdebf0e8650463cc1f0 | 5f54f145719f453dccc73304cd427096bf7b806c | 063ab9cb6308a0806d623c8d6dda5cb2b3b87fce | ≥ 3.2.29, < 3.3 | ≥ 3.4.12, < 3.5 | ≥ 3.5.5, < 3.6 | ≥ 3.2.60, < 3.3 | 3.6
- linux_kernel≥ 3.2.29, < 3.3 | ≥ 3.2.60, < 3.3 | ≥ 3.4.12, < 3.5 | ≥ 3.5.5, < 3.6 | ≥ 3.6.1, < 4.9.337 | ≥ 4.10, < 4.14.303 | ≥ 4.15, < 4.19.270 | ≥ 4.20, < 5.4.229 | ≥ 5.5, < 5.10.163 | ≥ 5.11, < 5.15.86 | ≥ 5.16, < 6.0.16 | ≥ 6.1, < 6.1.2 | 3.6 | 3.6:rc3 | 3.6:rc4 | 3.6:rc5 | 3.6:rc6 | 3.6:rc7
Debian1 product
- linux< 6.1.4-1
3 vendors · 123 products
