In the Linux kernel, the following vulnerability has been resolved:
net: rose: convert 'use' field to refcount_t
The 'use' field in struct rose_neigh is used as a reference counter but
lacks atomicity. This can lead to race conditions where a rose_neigh
structure is freed while still being referenced by other code paths.
For example, when rose_neigh->use becomes zero during an ioctl operation
via rose_rt_ioctl(), the structure may be removed while its timer is
still active, potentially causing use-after-free issues.
This patch changes the type of 'use' from unsigned short to refcount_t and
updates all code paths to use rose_neigh_hold() and rose_neigh_put() which
operate reference counts atomically.
References
Configurations
Configuration 1 (hide)
|
Configuration 2 (hide)
|
History
16 Jan 2026, 20:36
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | CWE-416 | |
| References | () https://git.kernel.org/stable/c/0085b250fcc79f900c82a69980ec2f3e1871823b - Patch | |
| References | () https://git.kernel.org/stable/c/203e4f42596ede31498744018716a3db6dbb7f51 - Patch | |
| References | () https://git.kernel.org/stable/c/d860d1faa6b2ce3becfdb8b0c2b048ad31800061 - Patch | |
| References | () https://git.kernel.org/stable/c/f8c29fc437d03a98fb075c31c5be761cc8326284 - Patch | |
| References | () https://git.kernel.org/stable/c/fb07156cc0742ba4e93dfcc84280c011d05b301f - Patch | |
| References | () https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html - Third Party Advisory, Mailing List | |
| CPE | cpe:2.3:o:linux:linux_kernel:2.6.12:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.17:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.17:rc3:*:*:*:*:*:* cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:2.6.12:-:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:2.6.12:rc5:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.17:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:2.6.12:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:2.6.12:rc3:*:*:*:*:*:* |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.0 |
| First Time |
Linux
Debian Debian debian Linux Linux linux Kernel |
03 Nov 2025, 18:16
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
16 Sep 2025, 13:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-09-16 13:16
Updated : 2026-01-16 20:36
NVD link : CVE-2025-39826
Mitre link : CVE-2025-39826
CVE.ORG link : CVE-2025-39826
JSON object : View
Products Affected
debian
- debian_linux
linux
- linux_kernel
CWE
CWE-416
Use After Free