Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: net: macb: destroy the phylink instance on the probe error path macb_mii_init() creates a phylink instance on both of its success paths, but the probe unwind frees the netdev without destroying it, so a failing macb_alloc_tieoff() or register_netdev() leaks the instance. Destroy it at err_out_unregister_mdio, which is only reachable once macb_mii_init() has succeeded, so bp->phylink is valid there.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 7897b071ac3b45a5788d084fc7f8a8ee9e5f07f0 before 0112aa02c7847314be599d68783d50c7e228a694; affected 7897b071ac3b45a5788d084fc7f8a8ee9e5f07f0 before c1de1e7b51ab2531f564b39b51998c3d71caccd7; affected 7897b071ac3b45a5788d084fc7f8a8ee9e5f07f0 before 23b6a44ffea1c54a4232aa86ee470b21422a8cc5; affected 7897b071ac3b45a5788d084fc7f8a8ee9e5f07f0 before e92a45b872b035c79acde8dd0da096a72b61ff2f; affected 7897b071ac3b45a5788d084fc7f8a8ee9e5f07f0 before 8558e3195664113c14a4d8fcf221b3caff41fed1; affected 7897b071ac3b45a5788d084fc7f8a8ee9e5f07f0 before 7d059f390750152b9bd69df934198651b94fc26d |
| Linux / Linux | affected 5.5; unaffected 0 before 5.5; unaffected 6.1.189 through 6.1.*; unaffected 6.6.158 through 6.6.*; unaffected 6.12.111 through 6.12.*; unaffected 6.18.53 through 6.18.*; unaffected 7.2.7 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/0112aa02c7847314be599d68783d50c7e228a694
- https://git.kernel.org/stable/c/c1de1e7b51ab2531f564b39b51998c3d71caccd7
- https://git.kernel.org/stable/c/23b6a44ffea1c54a4232aa86ee470b21422a8cc5
- https://git.kernel.org/stable/c/e92a45b872b035c79acde8dd0da096a72b61ff2f
- https://git.kernel.org/stable/c/8558e3195664113c14a4d8fcf221b3caff41fed1
- https://git.kernel.org/stable/c/7d059f390750152b9bd69df934198651b94fc26d