CVE-2025-38001 — Infinite Loop in Linux
Severity
5.5MEDIUMNVD
OSV8.8OSV7.8OSV5.9OSV4.7
EPSS
0.0%
top 92.23%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJun 6
Latest updateFeb 27
Description
In the Linux kernel, the following vulnerability has been resolved:
net_sched: hfsc: Address reentrant enqueue adding class to eltree twice
Savino says:
"We are writing to report that this recent patch
(141d34391abbb315d68556b7c67ad97885407547) [1]
can be bypassed, and a UAF can still occur when HFSC is utilized with
NETEM.
The patch only checks the cl->cl_nactive field to determine whether
it is the first insertion or not [2], but this field is only
incremented by init_vf [3].
By using HFSC…
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6
Affected Packages4 packages
▶CVEListV5linux/linux37d9cf1a3ce35de3df6f7d209bfb1f50cf188cea — e5bee633cc276410337d54b99f77fbc1ad8801e5+9
Also affects: Debian Linux 11.0, 12.0