CVE-2025-39829 — Incomplete Cleanup in Linux

CWE-459 — Incomplete Cleanup24 documents8 sources
Severity
5.5MEDIUMNVD
OSV3.2
EPSS
0.0%
top 97.73%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
7
LinuxLinux KernelDebian Linux+4 more
Timeline
PublishedSep 16
Latest updateApr 9

Description

In the Linux kernel, the following vulnerability has been resolved: trace/fgraph: Fix the warning caused by missing unregister notifier This warning was triggered during testing on v6.16: notifier callback ftrace_suspend_notifier_call already registered WARNING: CPU: 2 PID: 86 at kernel/notifier.c:23 notifier_chain_register+0x44/0xb0 ... Call Trace: blocking_notifier_chain_register+0x34/0x60 register_ftrace_graph+0x330/0x410 ftrace_profile_write+0x1e9/0x340 vfs_write+0xf8/0x420 ? filp_flush+…

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 Packages9 packages

▶NVDlinux/linux_kernel2.6.30 — 6.12.45+2
▶Debianlinux/linux_kernel< 6.12.48-1+1
▶Ubuntulinux/linux_kernel< 6.8.0-106.106

Patches

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

🔴Vulnerability Details

10
OSV
linux-raspi, linux-raspi-realtime vulnerabilities↗2026-04-01
▶
OSV
linux-azure-6.8 vulnerabilities↗2026-03-25
▶
OSV
linux-azure vulnerabilities↗2026-03-25
▶
OSV
linux-aws-6.8 vulnerabilities↗2026-03-23
▶
OSV
linux-realtime, linux-realtime-6.8 vulnerabilities↗2026-03-17
▶

📋Vendor Advisories

12
Ubuntu
Linux kernel (Azure FIPS) vulnerabilities↗2026-04-09
▶
Ubuntu
Linux kernel (Raspberry Pi) vulnerabilities↗2026-04-01
▶
Ubuntu
Linux kernel (Azure) vulnerabilities↗2026-03-25
▶
Ubuntu
Linux kernel (Azure) vulnerabilities↗2026-03-25
▶
Ubuntu
Linux kernel (AWS) vulnerabilities↗2026-03-23
▶

💬Community

1
Bugzilla
CVE-2025-39829 kernel: Linux kernel: Denial of Service due to improper resource deallocation in tracing functionality↗2025-09-16
▶