PT-2024-11367
CVE-2021-47370
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تاريخ النشر
2021-09-22
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تاريخ التحديث
2024-06-25
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 versions prior to 5.14.0-syzkaller
Description
The issue arises from a signed/unsigned comparison in the expression
info->size goal - skb->len > 0, which evaluates to true when the size goal is smaller than the skb size. This results in a lack of tx cache refill, causing the skb allocated by the core TCP code to lack the required MPTCP skb extensions. The vulnerability can be triggered by syzbot, leading to a WARN ON() warning.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
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