PT-2024-32168 · Linux+7 · Linux Kernel+7
Imre Deak
·
Published
2024-07-12
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Updated
2025-09-29
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CVE-2024-46750
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 6.6.52
Description
The issue is related to a missing bridge lock in the
pci bus lock() function, which can cause unlocked secondary bus resets. This is identified by the cfg access lock lockdep effort. The problem arises when pci reset bus() users trigger these unlocked resets, while pci bus reset() locks everything except the bridge itself. To fix this, a pci dev lock() is added for @bus->self to pci bus lock(), similar to the fix applied to pci reset function() for "bus" and "cxl bus" reset cases.Recommendations
Update to Linux kernel version 6.6.52 or later to resolve the issue.
Exploit
Fix
Improper Locking
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Astra Linux
Linuxmint
Linux Kernel
Red Hat
Red Os
Suse
Ubuntu