CVE-2026-74718
Description
In the Linux kernel, the following vulnerability has been resolved: devlink: fix net namespace reference leak in reload devlink_nl_reload_doit() calls devlink_netns_get(), which returns a net with a held reference. When the requested namespace differs from the current one and the reload action is not DRIVER_REINIT, the function returns -EOPNOTSUPP without releasing the reference. Add the missing put_net() on this error path.
How to fix
- Linux Linux7b6552e53426ea0539c667bbc5a524fdf7feae6f, bf0797b92be591ac71d7c0f610e695caca3c72c9, 7b02c6d2a3cd2cd669f5c16685779f84328ae60c, eda60c85b4f4c7d66b7141a5fe020b1a7f395341, 1c4dac9bf1d2ac31da63b794bdec697777cbd0fd or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 2edd92570441dd33246210042dc167319a5cf7e3 ≤ v < 7b6552e53426ea0539c667bbc5a524fdf7feae6f, 2edd92570441dd33246210042dc167319a5cf7e3 ≤ v < bf0797b92be591ac71d7c0f610e695caca3c72c9, 2edd92570441dd33246210042dc167319a5cf7e3 ≤ v < 7b02c6d2a3cd2cd669f5c16685779f84328ae60c, 2edd92570441dd33246210042dc167319a5cf7e3 ≤ v < eda60c85b4f4c7d66b7141a5fe020b1a7f395341, 2edd92570441dd33246210042dc167319a5cf7e3 ≤ v < 1c4dac9bf1d2ac31da63b794bdec697777cbd0fd, 6.3 | 7b6552e53426ea0539c667bbc5a524fdf7feae6f, bf0797b92be591ac71d7c0f610e695caca3c72c9, 7b02c6d2a3cd2cd669f5c16685779f84328ae60c, eda60c85b4f4c7d66b7141a5fe020b1a7f395341, 1c4dac9bf1d2ac31da63b794bdec697777cbd0fd |
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