n the Linux kernel, the following vulnerability has been resolved: genetlink: fix genl_bind() invoking bind() after -EPERM Per family bind/unbind callbacks were introduced to allow families to track multicast group consumer presence, e.g. to start or stop producing events depending on listeners. However, in genl_bind() the bind() callback was invoked even if capability checks failed and ret was set to -EPERM. This means that callbacks could run on behalf of unauthorized callers while the syscall still returned failure to user space. Fix this by only invoking bind() after "if (ret) break;" check i.e. after permission checks have succeeded.
Configuration 1 (hide)
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11 Dec 2025, 18:24
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| CPE | cpe:2.3:o:linux:linux_kernel:6.17:rc2:*:*:*:*:*:* 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:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.17:rc5:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.17:rc4:*:*:*:*:*:* |
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| References | () https://git.kernel.org/stable/c/1dbfb0363224f6da56f6655d596dc5097308d6f5 - Patch | |
| References | () https://git.kernel.org/stable/c/8858c1e9405906c09589d7c336f04058ea198207 - Patch | |
| References | () https://git.kernel.org/stable/c/98c9d884047a3051c203708914a874dece3cbe54 - Patch | |
| CWE | NVD-CWE-noinfo | |
| First Time |
Linux linux Kernel
Linux |
02 Oct 2025, 19:12
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Published : 2025-10-01 08:15
Updated : 2026-01-14 18:16
NVD link : CVE-2025-39926
Mitre link : CVE-2025-39926
CVE.ORG link : CVE-2025-39926
JSON object : View