CVE-2026-93821

Summary

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]

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22 < cf9d84d1b6a7c3f3780c043df220a7e9e38137ebaffected
LinuxLinuxec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22 < fc462f1bdeaea9789928cbfdf5e069ee559c7642affected
LinuxLinuxec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22 < 442b7f2a093b4a75f8963aaa7cbb2b8df35a6ac3affected
LinuxLinuxec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22 < 4b69c63cc247fc0f499fbd11076fee9c2a6e6fd7affected
LinuxLinuxec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22 < c0cd65906e5f7e293ef2568c9524cc0a918333c3affected
LinuxLinuxec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22 < 7cbb8f2750d91e64caff89e164ac8280bb80bedcaffected
LinuxLinuxec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22 < a8759c8ac48c0419f5899e95a6ffc611b07c965baffected
LinuxLinux5.3affected
LinuxLinux0 < 5.3unaffected
LinuxLinux5.10.271 <= 5.10.*unaffected
LinuxLinux5.15.222 <= 5.15.*unaffected
LinuxLinux6.1.189 <= 6.1.*unaffected
LinuxLinux6.6.158 <= 6.6.*unaffected
LinuxLinux6.12.111 <= 6.12.*unaffected
LinuxLinux6.18.53 <= 6.18.*unaffected
LinuxLinux7.2 <= *unaffected

Weaknesses

References