Unrated severityNVD Advisory· Published Sep 24, 2026· Updated Oct 3, 2026
CVE-2026-93821
CVE-2026-93821
Description
In the Linux kernel, the following vulnerability has been resolved:
PCI: altera: Protect root bus removal with rescan lock
Hold the pci_rescan_remove_lock lock while stopping and removing a root bus to avoid racing with concurrent rescan or hotplug operations triggered via sysfs. Such races may lead to use-after-free issues or system crashes.
[bhelgaas: commit log]
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2Patches
Vulnerability mechanics
References
7- git.kernel.org/stable/c/442b7f2a093b4a75f8963aaa7cbb2b8df35a6ac3nvd
- git.kernel.org/stable/c/4b69c63cc247fc0f499fbd11076fee9c2a6e6fd7nvd
- git.kernel.org/stable/c/7cbb8f2750d91e64caff89e164ac8280bb80bedcnvd
- git.kernel.org/stable/c/a8759c8ac48c0419f5899e95a6ffc611b07c965bnvd
- git.kernel.org/stable/c/c0cd65906e5f7e293ef2568c9524cc0a918333c3nvd
- git.kernel.org/stable/c/cf9d84d1b6a7c3f3780c043df220a7e9e38137ebnvd
- git.kernel.org/stable/c/fc462f1bdeaea9789928cbfdf5e069ee559c7642nvd
News mentions
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