PT-2024-11352 · Linux+2 · Linux Kernel+2
Hulk Robot
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Published
2021-05-12
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Updated
2024-12-26
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CVE-2021-47355
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue is related to a possible use-after-free in the
nicstar cleanup() function. The problem arises because the del timer() function does not wait for the timer handler to finish, which can lead to a situation where the timer handler is still running after the driver's remove function has finished. This can result in a use-after-free. The fix involves calling del timer sync(), which ensures the timer handler has finished and cannot re-schedule itself.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Linux Kernel
Suse