CVE-2025-37798 — Improper Input Validation in Linux

CWE-20 — Improper Input Validation69 documents8 sources
Severity
7.8HIGHNVD
OSV8.8OSV5.9OSV5.5OSV4.7
EPSS
0.1%
top 76.72%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
9
LinuxLinux KernelDebian Linux+6 more
Timeline
PublishedMay 2
Latest updateNov 21

Description

In the Linux kernel, the following vulnerability has been resolved: codel: remove sch->q.qlen check before qdisc_tree_reduce_backlog() After making all ->qlen_notify() callbacks idempotent, now it is safe to remove the check of qlen!=0 from both fq_codel_dequeue() and codel_qdisc_dequeue().

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages10 packages

▶NVDlinux/linux_kernel3.5 — 5.4.297+8
▶Debianlinux/linux_kernel< 5.10.244-1+3
▶Ubuntulinux/linux_kernel< 5.15.0-143.153+5

Also affects: Debian Linux 11.0

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

34
OSV
linux-azure-5.15 vulnerabilities↗2025-09-02
▶
OSV
linux-azure-fips vulnerabilities↗2025-08-22
▶
OSV
linux-raspi vulnerabilities↗2025-08-05
▶
OSV
linux-iot vulnerabilities↗2025-08-04
▶
OSV
linux-azure vulnerabilities↗2025-07-30
▶

📋Vendor Advisories

34
Chrome
Long Term Support Channel Update for ChromeOS: CVE-2025-13223↗2025-11-21
▶
Chrome
Long Term Support Channel Update for ChromeOS: CVE-2025-37798↗2025-10-10
▶
Ubuntu
Linux kernel (Azure) vulnerabilities↗2025-09-02
▶
Ubuntu
Linux kernel (Azure FIPS) vulnerabilities↗2025-08-22
▶
Ubuntu
Linux kernel (Raspberry Pi) vulnerabilities↗2025-08-05
▶
CVE-2025-37798 — Improper Input Validation in Linux | cvebase