In the Linux kernel, the following vulnerability has been resolved:
net: rose: include node references in rose_neigh refcount
Current implementation maintains two separate reference counting
mechanisms: the 'count' field in struct rose_neigh tracks references from
rose_node structures, while the 'use' field (now refcount_t) tracks
references from rose_sock.
This patch merges these two reference counting systems using 'use' field
for proper reference management. Specifically, this patch adds incrementing
and decrementing of rose_neigh->use when rose_neigh->count is incremented
or decremented.
This patch also modifies rose_rt_free(), rose_rt_device_down() and
rose_clear_route() to properly release references to rose_neigh objects
before freeing a rose_node through rose_remove_node().
These changes ensure rose_neigh structures are properly freed only when
all references, including those from rose_node structures, are released.
As a result, this resolves a slab-use-after-free issue reported by Syzbot.
References
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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History
16 Jan 2026, 20:35
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://git.kernel.org/stable/c/384210cceb1873a4c8218b27ba0745444436b728 - Patch | |
| References | () https://git.kernel.org/stable/c/4cce478c3e82a5fc788d72adb2f4c4e983997639 - Patch | |
| References | () https://git.kernel.org/stable/c/9c547c8eee9d1cf6e744611d688b9f725cf9a115 - Patch | |
| References | () https://git.kernel.org/stable/c/d7563b456ed44151e1a82091d96f60166daea89b - Patch | |
| References | () https://git.kernel.org/stable/c/da9c9c877597170b929a6121a68dcd3dd9a80f45 - Patch | |
| References | () https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html - Third Party Advisory | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| CWE | NVD-CWE-Other | |
| First Time |
Linux
Debian Debian debian Linux Linux linux Kernel |
|
| 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:*:*:*:*:*:* |
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 20:35
NVD link : CVE-2025-39827
Mitre link : CVE-2025-39827
CVE.ORG link : CVE-2025-39827
JSON object : View
Products Affected
debian
- debian_linux
linux
- linux_kernel
CWE