CVE-2025-39833 — Use of Uninitialized Resource in Linux

CWE-908 — Use of Uninitialized ResourceCWE-665 — Improper Initialization6 documents6 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 94.57%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
15
LinuxLinux KernelDebian Linux+12 more
Timeline
PublishedSep 16

Description

In the Linux kernel, the following vulnerability has been resolved: mISDN: hfcpci: Fix warning when deleting uninitialized timer With CONFIG_DEBUG_OBJECTS_TIMERS unloading hfcpci module leads to the following splat: [ 250.215892] ODEBUG: assert_init not available (active state 0) object: ffffffffc01a3dc0 object type: timer_list hint: 0x0 [ 250.217520] WARNING: CPU: 0 PID: 233 at lib/debugobjects.c:612 debug_print_object+0x1b6/0x2c0 [ 250.218775] Modules linked in: hfcpci(-) mISDN_core [ 250.2…

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 Packages16 packages

▶debiandebian/linux< linux 6.16.5-1 (forky)
▶NVDlinux/linux_kernel2.6.29 — 6.16.5+1
▶Debianlinux/linux_kernel< 6.16.5-1

Patches

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

🔴Vulnerability Details

2
OSV
CVE-2025-39833: In the Linux kernel, the following vulnerability has been resolved: mISDN: hfcpci: Fix warning when deleting uninitialized timer With CONFIG_DEBUG_OBJ↗2025-09-16
▶
GHSA
GHSA-hqfq-8fx5-m4r2: In the Linux kernel, the following vulnerability has been resolved: mISDN: hfcpci: Fix warning when deleting uninitialized timer With CONFIG_DEBUG_O↗2025-09-16
▶

📋Vendor Advisories

3
Red Hat
kernel: mISDN: hfcpci: Fix warning when deleting uninitialized timer↗2025-09-16
▶
Microsoft
mISDN: hfcpci: Fix warning when deleting uninitialized timer↗2025-09-09
▶
Debian
CVE-2025-39833: linux - In the Linux kernel, the following vulnerability has been resolved: mISDN: hfcp...↗2025
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