In 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.
References
Configurations
Configuration 1 (hide)
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History
11 Dec 2025, 18:24
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | NVD-CWE-noinfo | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| 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 | |
| CPE | cpe:2.3:o:linux:linux_kernel:6.17:rc5:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.17:rc4:*:*:*:*:*:* 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:linux:linux_kernel:6.17:rc1:*:*:*:*:*:* |
|
| First Time |
Linux
Linux linux Kernel |
01 Oct 2025, 08:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-10-01 08:15
Updated : 2025-12-11 18:24
NVD link : CVE-2025-39926
Mitre link : CVE-2025-39926
CVE.ORG link : CVE-2025-39926
JSON object : View
Products Affected
linux
- linux_kernel
CWE