Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: net: dsa: mt7530: fix NULL dereference on unbind of MT7531 and MT7621 The core and io supplies are only requested for ID_MT7530: both the devm_regulator_get() in probe and the regulator_enable() in mt7530_setup() are guarded by the switch id, but mt7530_remove() disables them unconditionally. On an MT7621 or an MT7531 both pointers are still NULL from devm_kzalloc(), so rmmod or a sysfs unbind calls regulator_disable() on NULL.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected ddda1ac116c852bb969541ed53cffef7255c4961 before bd172580e624bac00d83abd5c4320d2e14d853bc; affected ddda1ac116c852bb969541ed53cffef7255c4961 before e9a5298532780ecdd05c3220f3e1e3067b3537c3; affected ddda1ac116c852bb969541ed53cffef7255c4961 before 62c0e38b2e5034184d4502ce77bd178b29e59b83; affected ddda1ac116c852bb969541ed53cffef7255c4961 before aae2a1f1e3a0ac5eeb439262a2328a2a392413ac; affected ddda1ac116c852bb969541ed53cffef7255c4961 before c2cdef41e0b4d8ed23a5b41e6ad4e64594e055e4 |
| Linux / Linux | affected 5.1; unaffected 0 before 5.1; unaffected 6.6.158 through 6.6.*; unaffected 6.12.112 through 6.12.*; unaffected 6.18.55 through 6.18.*; unaffected 7.2.9 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/bd172580e624bac00d83abd5c4320d2e14d853bc
- https://git.kernel.org/stable/c/e9a5298532780ecdd05c3220f3e1e3067b3537c3
- https://git.kernel.org/stable/c/62c0e38b2e5034184d4502ce77bd178b29e59b83
- https://git.kernel.org/stable/c/aae2a1f1e3a0ac5eeb439262a2328a2a392413ac
- https://git.kernel.org/stable/c/c2cdef41e0b4d8ed23a5b41e6ad4e64594e055e4