PT-2024-3383
CVE-2024-26640
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تاريخ النشر
2024-01-29
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تاريخ التحديث
2026-10-19
الوصف من
CVSS 3.1
7.8
عاليةالمقاييسAV: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 the Linux kernel's TCP rx zerocopy functionality, which is intended to map pages initially allocated from NIC drivers, not pages owned by a file system. A patch has been added to include additional checks in the
can map frag() function to prevent potential issues, such as panics reported by ZhangPeng. The vulnerability could be exploited by an attacker to cause a denial of service. Technical details about exploitation include the use of sendfile() to map pages owned by an ext4 file to TCP rx zerocopy.Recommendations:
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
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