PT-2022-7511 · Linux+4 · Linux Kernel+4
Syzbot
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Published
2022-03-15
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Updated
2026-02-12
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CVE-2022-48838
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 (affected versions not specified)
Description
The issue is related to a use-after-free bug in the Linux kernel's gadget core, which can cause a denial of service. The bug is due to a race condition between the gadget core and the driver core. The
dev uevent() function checks if dev->driver is set and then dereferences it, but the gadget core sets dev->driver to NULL between the check and the dereference. This can be fixed by ensuring that udc->dev.driver is always NULL.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Linux Kernel
Red Os
Suse
Ubuntu