Bug 2540429 (CVE-2026-93822) - CVE-2026-93822 kernel: PCI: iproc: Protect root bus removal with rescan lock
Summary: CVE-2026-93822 kernel: PCI: iproc: Protect root bus removal with rescan lock
Keywords:
Status: NEW
Alias: CVE-2026-93822
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-24 16:47 UTC by OSIDB Bzimport
Modified: 2026-09-28 15:15 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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Description OSIDB Bzimport 2026-09-24 16:47:14 UTC 
In the Linux kernel, the following vulnerability has been resolved:

PCI: iproc: 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]
Comment 1 Mauro Matteo Cascella 2026-09-28 15:09:13 UTC 
Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-93822.mbox
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