PT-2024-5793 · Linux+6 · Linux Kernel+6
Giovanni Cabiddu
+1
·
Published
2024-05-17
·
Updated
2025-09-29
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CVE-2024-39493
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 memory leak in the crypto component of the Linux kernel, specifically in the qat (Quick Assist Technology) module. The problem arises when using
completion done to determine if the caller has gone away, which only works after a complete call. Additionally, there's a possibility that the caller has not yet called wait for completion, resulting in another potential use-after-free (UAF). The fix involves making the caller use cancel work sync and then freeing the memory safely.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Memory Leak
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Astra Linux
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu