Executive Summary

Informations
Name CVE-2024-26831 First vendor Publication 2024-04-17
Vendor Cve Last vendor Modification 2024-04-17

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
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Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

In the Linux kernel, the following vulnerability has been resolved:

net/handshake: Fix handshake_req_destroy_test1

Recently, handshake_req_destroy_test1 started failing:

Expected handshake_req_destroy_test == req, but
handshake_req_destroy_test == 0000000000000000
req == 0000000060f99b40 not ok 11 req_destroy works

This is because "sock_release(sock)" was replaced with "fput(filp)" to address a memory leak. Note that sock_release() is synchronous but fput() usually delays the final close and clean-up.

The delay is not consequential in the other cases that were changed but handshake_req_destroy_test1 is testing that handshake_req_cancel() followed by closing the file actually does call the ->hp_destroy method. Thus the PTR_EQ test at the end has to be sure that the final close is complete before it checks the pointer.

We cannot use a completion here because if ->hp_destroy is never called (ie, there is an API bug) then the test will hang.

Reported by: Guenter Roeck

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26831

Sources (Detail)

https://git.kernel.org/stable/c/4e1d71cabb19ec2586827adfc60d68689c68c194
https://git.kernel.org/stable/c/7f97805b8df6e33850e225e6bd3ebd9e246920af
https://git.kernel.org/stable/c/d74226e03df1bf19848f18344401f254345af912
Source Url

Alert History

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0
Date Informations
2024-04-17 17:28:37
  • First insertion