CVE-2022-50505
iommu/amd: Fix pci device refcount leak in ppr_notifier()
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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: 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.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
4.14
References 8
git.kernel.org
- stable/c/bdb2113dd8f17a3cc84a2b4be4968a849f69ec72
- stable/c/efd50c65fd1cdef63eb58825f3fe72496443764c
- stable/c/8581ec1feb895ff596fe3d326d9ba320083290aa
- stable/c/03f51c72997559e73b327608f0cccfded715c9a0
- stable/c/6e501b3fd7a2e1c4372d72bc70717aaca2beb8a5
- stable/c/902cc2507091a81643502d8ceb0e2f105e902518
- stable/c/b0637f4bd426925f5c3a15e8f8e36190fe06bac5
- stable/c/6cf0981c2233f97d56938d9d61845383d6eb227c