CVE-2022-50505: iommu/amd: Fix pci device refcount leak in ppr_notifier()
Vulnerability summary
CVE-2022-50505 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5.5% 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 5Timeline
- 04-10-2025PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Fix pci device refcount leak in ppr_notifier() As comment of pci_get_domain_bus_and_slot() says, it returns a pci device with refcount increment, when finish using it, the caller must decrement the reference count by calling pci_dev_put(). So call it before returning from ppr_notifier() to avoid refcount leak.
CVSS metrics
4 scores · 3 sources · 2 versions- 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
0.16%
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.
Ubuntu119 products
- linux< 4.15.0-208.220 | < 5.4.0-144.161 | < 5.15.0-69.76
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 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≥ daae2d25a4779b272a66ddd01f5810bcee822b9e, < bdb2113dd8f17a3cc84a2b4be4968a849f69ec72 | ≥ daae2d25a4779b272a66ddd01f5810bcee822b9e, < efd50c65fd1cdef63eb58825f3fe72496443764c | ≥ daae2d25a4779b272a66ddd01f5810bcee822b9e, < 8581ec1feb895ff596fe3d326d9ba320083290aa | ≥ daae2d25a4779b272a66ddd01f5810bcee822b9e, < 03f51c72997559e73b327608f0cccfded715c9a0 | ≥ daae2d25a4779b272a66ddd01f5810bcee822b9e, < 6e501b3fd7a2e1c4372d72bc70717aaca2beb8a5 | ≥ daae2d25a4779b272a66ddd01f5810bcee822b9e, < 902cc2507091a81643502d8ceb0e2f105e902518 | ≥ daae2d25a4779b272a66ddd01f5810bcee822b9e, < b0637f4bd426925f5c3a15e8f8e36190fe06bac5 | ≥ daae2d25a4779b272a66ddd01f5810bcee822b9e, < 6cf0981c2233f97d56938d9d61845383d6eb227c | 4.14
- linux_kernel≥ 4.14, < 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
Debian1 product
- linux< 6.1.4-1
3 vendors · 122 products
