n 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.
Configuration 1 (hide)
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Configuration 2 (hide)
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16 Jan 2026, 20:35
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | NVD-CWE-Other | |
| CPE | cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:2.6.12:rc2:*:*:*:*:*:* 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:6.17:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.17:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:2.6.12:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:2.6.12:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:2.6.12:-:*:*:*:*:*:* |
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| 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 | |
| First Time |
Debian
Linux linux Kernel Linux Debian debian Linux |
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| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
03 Nov 2025, 18:16
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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17 Sep 2025, 14:18
| Type | Values Removed | Values Added |
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| New CVE |
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