CVE-2022-50868
hwrng: amd - Fix PCI device refcount leak
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: hwrng: amd - Fix PCI device refcount leak for_each_pci_dev() is implemented by pci_get_device(). The comment of pci_get_device() says that it will increase the reference count for the returned pci_dev and also decrease the reference count for the input pci_dev @from if it is not NULL. If we break for_each_pci_dev() loop with pdev not NULL, we need to call pci_dev_put() to decrease the reference count. Add the missing pci_dev_put() for the normal and error path.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Deferred.
- EPSS (exploitation in 30 days)
- 0.24% · top 85% of all CVEs (6 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 – < f1c97f72ffd504f49882774e2ab689d982dc7afc
- affected 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 – < 526c316948819d3ecd2bb20fe5e2580c51a1b760
- affected 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 – < e246f5eff26055bdcb61a2cc99c50af72a19680f
- affected 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 – < 1199f8e02941b326c60ab71a63002b7c80e38212
- affected 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 – < 5998e5c30e839f73e62cb29e0d9617b0d16ccba3
- affected 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 – < 2b79a5e560779b35e1164d57ae35c48b43373082
- affected 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 – < cb348c7908631dd9f60083a0a1542eab055d3edf
- affected 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 – < 2e10ecd012ae2b2a374b34f307e9bc1e6096c03d
- affected 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 – < ecadb5b0111ea19fc7c240bb25d424a94471eb7d
- affected 2.6.18
- unaffected < 2.6.18
- unaffected 4.9.337 – ≤ 4.9.*
- unaffected 4.14.303 – ≤ 4.14.*
- unaffected 4.19.270 – ≤ 4.19.*
- unaffected 5.4.229 – ≤ 5.4.*
- unaffected 5.10.163 – ≤ 5.10.*
- unaffected 5.15.86 – ≤ 5.15.*
- unaffected 6.0.16 – ≤ 6.0.*
- unaffected 6.1.2 – ≤ 6.1.*
- unaffected 6.2 – ≤ *
References (9)
- https://git.kernel.org/stable/c/f1c97f72ffd504f49882774e2ab689d982dc7afc (opens in a new tab)
- https://git.kernel.org/stable/c/526c316948819d3ecd2bb20fe5e2580c51a1b760 (opens in a new tab)
- https://git.kernel.org/stable/c/e246f5eff26055bdcb61a2cc99c50af72a19680f (opens in a new tab)
- https://git.kernel.org/stable/c/1199f8e02941b326c60ab71a63002b7c80e38212 (opens in a new tab)
- https://git.kernel.org/stable/c/5998e5c30e839f73e62cb29e0d9617b0d16ccba3 (opens in a new tab)
- https://git.kernel.org/stable/c/2b79a5e560779b35e1164d57ae35c48b43373082 (opens in a new tab)
- https://git.kernel.org/stable/c/cb348c7908631dd9f60083a0a1542eab055d3edf (opens in a new tab)
- https://git.kernel.org/stable/c/2e10ecd012ae2b2a374b34f307e9bc1e6096c03d (opens in a new tab)
- https://git.kernel.org/stable/c/ecadb5b0111ea19fc7c240bb25d424a94471eb7d (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2022-50868)Record last updated .