CVE-2025-37992 — NULL Pointer Dereference in Linux
Severity
5.5MEDIUMNVD
OSV8.8OSV7.8OSV3.2
EPSS
0.1%
top 69.24%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedMay 26
Latest updateMar 25
Description
In the Linux kernel, the following vulnerability has been resolved:
net_sched: Flush gso_skb list too during ->change()
Previously, when reducing a qdisc's limit via the ->change() operation, only
the main skb queue was trimmed, potentially leaving packets in the gso_skb
list. This could result in NULL pointer dereference when we only check
sch->limit against sch->q.qlen.
This patch introduces a new helper, qdisc_dequeue_internal(), which ensures
both the gso_skb list and the main queue are p…
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/linux76e3cc126bb223013a6b9a0e2a51238d1ef2e409 — ea1132ccb112f51ba749c56a912f67970c2cd542+7
Also affects: Debian Linux 11.0