PT-2022-7689 · Linux+6 · Linux Kernel+6
Wang Hai
·
Published
2022-11-23
·
Updated
2026-01-29
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CVE-2022-49026
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
e100 xmit prepare() function. If the function cannot map the skb, it returns -ENOMEM, causing e100 xmit frame() to return NETDEV TX BUSY and the upper layer to resend the skb. However, the skb is already freed, leading to a use after free bug when the upper layer resends the skb. The problem is resolved by removing the harmful free. This vulnerability may allow an attacker to impact the confidentiality, integrity, and availability of protected information.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
Alt Linux
Astra Linux
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu