cbcvebase.
CVE-2025-37914
published 2025-05-20

CVE-2025-37914: 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…

PriorityP338high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.18%
7.6th percentile
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 reentrant case. [1] https://lore.kernel.org/netdev/CAHcdcOm+03OD2j6R0=YHKqmy=VgJ8xEOKuP6c7mSgnp-TEJJbw@mail.gmail.com/

Affected

39 ranges· showing 25
VendorProductVersion rangeFixed in
debiandebian_linux
debianlinux< linux 6.1.140-1 (bookworm)linux 6.1.140-1 (bookworm)
debianlinux-6.1< linux 6.1.140-1 (bookworm)linux 6.1.140-1 (bookworm)
linuxlinux
linuxlinux>= dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 < 24388ba0a1b1b6d4af1b205927ac7f7b119ee4ea24388ba0a1b1b6d4af1b205927ac7f7b119ee4ea
linuxlinux>= dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 < 554acc5a2ea9703e08023eb9a003f9e5a830a502554acc5a2ea9703e08023eb9a003f9e5a830a502
linuxlinux>= dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 < 9efb6a0fa88e0910d079fdfeb4f7ce4d4ac6c9909efb6a0fa88e0910d079fdfeb4f7ce4d4ac6c990
linuxlinux>= dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 < 72c3da7e6ceb74e74ddbb5a305a35c9fdfcac6e372c3da7e6ceb74e74ddbb5a305a35c9fdfcac6e3
linuxlinux>= dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 < 1f01e9f961605eb397c6ecd1d7b0233dfbf9077c1f01e9f961605eb397c6ecd1d7b0233dfbf9077c
linuxlinux>= dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 < bc321f714de693aae06e3786f88df2975376d996bc321f714de693aae06e3786f88df2975376d996
linuxlinux>= dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 < 1a6d0c00fa07972384b0c308c72db091d49988b61a6d0c00fa07972384b0c308c72db091d49988b6
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel>= 0 < 5.10.244-15.10.244-1
linuxlinux_kernel>= 0 < 6.1.140-16.1.140-1
linuxlinux_kernel>= 0 < 6.12.29-16.12.29-1
linuxlinux_kernel>= 0 < 6.12.29-16.12.29-1
linuxlinux_kernel>= 0 < 5.15.0-144.1575.15.0-144.157
linuxlinux_kernel>= 0 < 6.8.0-100.1006.8.0-100.100
linuxlinux_kernel>= 0 < 6.14.0-24.246.14.0-24.24
linuxlinux_kernel>= 5.11 < 5.15.1825.15.182
linuxlinux_kernel>= 5.16 < 6.1.1386.1.138
linuxlinux_kernel>= 5.6 < 5.10.2385.10.238

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
vendor_msrc7.0HIGH
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CVE-2025-37914 — Double Free in Linux | cvebase