CVE-2025-37914

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: net_sched: ets: 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 ets, 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 doing the addition to cater for the re...

Affected product and versions

Product

Linux Linux, linux kernel, debian linux

Affected versions

>= dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 < 24388ba0a1b1b6d4af1b205927ac7f7b119ee4ea, >= dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 < 554acc5a2ea9703e08023eb9a003f9e5a830a502, >= dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 < 9efb6a0fa88e0910d079fdfeb4f7ce4d4ac6c990, >= dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 < 72c3da7e6ceb74e74ddbb5a305a35c9fdfcac6e3, >= dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 < 1f01e9f961605eb397c6ecd1d7b0233dfbf9077c, >= dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 < bc321f714de693aae06e3786f88df2975376d996, >= dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 < 1a6d0c00fa07972384b0c308c72db091d49988b6, >= 5.6, >= 5.6 < 5.10.238, >= 5.11 < 5.15.182, >= 5.16 < 6.1.138, >= 6.2 < 6.6.90, >= 6.7 < 6.12.28, >= 6.13 < 6.14.6, 6.15, 11.0

Fixed versions

5.10.238, 5.15.182, 6.1.138, 6.6.90, 6.12.28, 6.14.6

Technical data

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-415