Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: devlink: Release nested relation on devlink free devlink relation state is normally released from devl_unregister(), which calls devlink_rel_put(). This misses devlink instances that get a nested relation before registration and then fail probe before devl_register() is reached. That flow can happen for SFs. The child devlink gets linked to its parent before registration, then a later probe error calls devlink_free() directly. Since the instance was never registered, devl_unregister() is not called and devlink->rel is leaked. Release any pending relation from devlink_free() as well. The registered path is unchanged because devl_unregister() already clears devlink->rel before devlink_free() runs.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected c137743bce02b18c1537d4681aa515f7b80bf0a8 before a9137286884703113b1c9e6403bd6d7d97b14754; affected c137743bce02b18c1537d4681aa515f7b80bf0a8 before 927f96861f939c0b517d13ed27bf4fabbfc1cfb3; affected c137743bce02b18c1537d4681aa515f7b80bf0a8 before 11324d52b0c63f4f202b35793c6507a575e9a689; affected c137743bce02b18c1537d4681aa515f7b80bf0a8 before 3522b21fd7e1863d0734537737bd59f1b90d0190 |
| Linux / Linux | affected 6.7; unaffected 0 before 6.7; unaffected 6.12.94 through 6.12.*; unaffected 6.18.36 through 6.18.*; unaffected 7.0.13 through 7.0.*; unaffected 7.1 through * |
CWE
No CWE identifiers supplied.