CVE-2026-93821
Unknown
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]
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedSep 24, 2026
First seenSep 24, 2026
How to fix
Update
- Linux Linuxcf9d84d1b6a7c3f3780c043df220a7e9e38137eb, fc462f1bdeaea9789928cbfdf5e069ee559c7642, 442b7f2a093b4a75f8963aaa7cbb2b8df35a6ac3, 4b69c63cc247fc0f499fbd11076fee9c2a6e6fd7, c0cd65906e5f7e293ef2568c9524cc0a918333c3, 7cbb8f2750d91e64caff89e164ac8280bb80bedc, a8759c8ac48c0419f5899e95a6ffc611b07c965b or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22 ≤ v < cf9d84d1b6a7c3f3780c043df220a7e9e38137eb, ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22 ≤ v < fc462f1bdeaea9789928cbfdf5e069ee559c7642, ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22 ≤ v < 442b7f2a093b4a75f8963aaa7cbb2b8df35a6ac3, ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22 ≤ v < 4b69c63cc247fc0f499fbd11076fee9c2a6e6fd7, ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22 ≤ v < c0cd65906e5f7e293ef2568c9524cc0a918333c3, ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22 ≤ v < 7cbb8f2750d91e64caff89e164ac8280bb80bedc, ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22 ≤ v < a8759c8ac48c0419f5899e95a6ffc611b07c965b, 5.3 | cf9d84d1b6a7c3f3780c043df220a7e9e38137eb, fc462f1bdeaea9789928cbfdf5e069ee559c7642, 442b7f2a093b4a75f8963aaa7cbb2b8df35a6ac3, 4b69c63cc247fc0f499fbd11076fee9c2a6e6fd7, c0cd65906e5f7e293ef2568c9524cc0a918333c3, 7cbb8f2750d91e64caff89e164ac8280bb80bedc, a8759c8ac48c0419f5899e95a6ffc611b07c965b |
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