CVE-2022-50868
hwrng: amd - Fix PCI device refcount leak
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
2.6.18
References 9
git.kernel.org
- stable/c/f1c97f72ffd504f49882774e2ab689d982dc7afc
- stable/c/526c316948819d3ecd2bb20fe5e2580c51a1b760
- stable/c/e246f5eff26055bdcb61a2cc99c50af72a19680f
- stable/c/1199f8e02941b326c60ab71a63002b7c80e38212
- stable/c/5998e5c30e839f73e62cb29e0d9617b0d16ccba3
- stable/c/2b79a5e560779b35e1164d57ae35c48b43373082
- stable/c/cb348c7908631dd9f60083a0a1542eab055d3edf
- stable/c/2e10ecd012ae2b2a374b34f307e9bc1e6096c03d
- stable/c/ecadb5b0111ea19fc7c240bb25d424a94471eb7d