Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: ipvs: Defer ip_vs_ftp unregister during netns cleanup On the netns cleanup path, __ip_vs_ftp_exit() may unregister ip_vs_ftp before connections with valid cp->app pointers are flushed, leading to a use-after-free. Fix this by introducing a global `exiting_module` flag, set to true in ip_vs_ftp_exit() before unregistering the pernet subsystem. In __ip_vs_ftp_exit(), skip ip_vs_ftp unregister if called during netns cleanup (when exiting_module is false) and defer it to __ip_vs_cleanup_batch(), which unregisters all apps after all connections are flushed. If called during module exit, unregister ip_vs_ftp immediately.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 61b1ab4583e275af216c8454b9256de680499b19 before 8a6ecab3847c213ce2855b0378e63ce839085de3; affected 61b1ab4583e275af216c8454b9256de680499b19 before 421b1ae1574dfdda68b835c15ac4921ec0030182; affected 61b1ab4583e275af216c8454b9256de680499b19 before 1d79471414d7b9424d699afff2aa79fff322f52d; affected 61b1ab4583e275af216c8454b9256de680499b19 before 53717f8a4347b78eac6488072ad8e5adbaff38d9; affected 61b1ab4583e275af216c8454b9256de680499b19 before 8cbe2a21d85727b66d7c591fd5d83df0d8c4f757; affected 61b1ab4583e275af216c8454b9256de680499b19 before dc1a481359a72ee7e548f1f5da671282a7c13b8f; affected 61b1ab4583e275af216c8454b9256de680499b19 before a343811ef138a265407167294275201621e9ebb2; affected 61b1ab4583e275af216c8454b9256de680499b19 before 134121bfd99a06d44ef5ba15a9beb075297c0821 |
| Linux / Linux | affected 2.6.39; unaffected 0 before 2.6.39; unaffected 5.4.301 through 5.4.*; unaffected 5.10.246 through 5.10.*; unaffected 5.15.195 through 5.15.*; unaffected 6.1.156 through 6.1.*; unaffected 6.6.112 through 6.6.*; unaffected 6.12.53 through 6.12.*; unaffected 6.17.3 through 6.17.*; unaffected 6.18 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/8a6ecab3847c213ce2855b0378e63ce839085de3
- https://git.kernel.org/stable/c/421b1ae1574dfdda68b835c15ac4921ec0030182
- https://git.kernel.org/stable/c/1d79471414d7b9424d699afff2aa79fff322f52d
- https://git.kernel.org/stable/c/53717f8a4347b78eac6488072ad8e5adbaff38d9
- https://git.kernel.org/stable/c/8cbe2a21d85727b66d7c591fd5d83df0d8c4f757
- https://git.kernel.org/stable/c/dc1a481359a72ee7e548f1f5da671282a7c13b8f
- https://git.kernel.org/stable/c/a343811ef138a265407167294275201621e9ebb2
- https://git.kernel.org/stable/c/134121bfd99a06d44ef5ba15a9beb075297c0821
ADP enrichment
No English description supplied.
No references supplied.