Executive Summary

Informations
Name CVE-2025-37915 First vendor Publication 2025-05-20
Vendor Cve Last vendor Modification 2025-06-04

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
 
Calculate full CVSS 3.0 Vectors scores

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_sched: drr: Fix double list add in class with netem as child qdisc

As described in Gerrard's report [1], there are use cases where a netem child qdisc will make the parent qdisc's enqueue callback reentrant. In the case of drr, there won't be a UAF, but the code will add the same classifier to the list twice, which will cause memory corruption.

In addition to checking for qlen being zero, this patch checks whether the class was already added to the active_list (cl_is_active) before adding to the list to cover for the reentrant case.

[1] https://lore.kernel.org/netdev/CAHcdcOm+03OD2j6R0=YHKqmy=VgJ8xEOKuP6c7mSgnp-TEJJbw@mail.gmail.com/

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-37915

Sources (Detail)

https://git.kernel.org/stable/c/26e75716b94d6ff9be5ea07d63675c4d189f30b4
https://git.kernel.org/stable/c/2968632880f1792007eedd12eeedf7f6e2b7e9f3
https://git.kernel.org/stable/c/4b07ac06b0a712923255aaf2691637693fc7100d
https://git.kernel.org/stable/c/4f0ecf50cdf76da95828578a92f130b653ac2fcf
https://git.kernel.org/stable/c/5da3aad1a13e7edb8ff0778a444ccf49930313e9
https://git.kernel.org/stable/c/ab2248110738d4429668140ad22f530a9ee730e1
https://git.kernel.org/stable/c/db205b92dfe0501e5b92fb7cf00971d0e44ba3eb
https://git.kernel.org/stable/c/f99a3fbf023e20b626be4b0f042463d598050c9a
Source Url

Alert History

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0
1
Date Informations
2025-06-04 17:20:38
  • Multiple Updates
2025-05-26 21:20:40
  • First insertion