Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: net: phylink: correctly validate returned PCS in phylink_inband_caps In phylink_inband_caps(), the PCS returned by mac_select_pcs is only checked if NULL but mac_select_pcs can also return an error pointer. This can cause a kernel panic as phylink_pcs_inband_caps() only checks if passed PCS is not NULL and directly dereference ops from the phylink_pcs struct. Use the IS_ERR_OR_NULL macro to address both case where the returned PCS can be NULL or an error pointer and prevent a kernel panic.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected df874f9e52c340cc6f0a0014a97b778f67d46849 before b6b533f83461c3730875cf3ed5ff6362dcb67be9; affected df874f9e52c340cc6f0a0014a97b778f67d46849 before fb4d77553841ae85bed9b2cf03351c401e871d85; affected df874f9e52c340cc6f0a0014a97b778f67d46849 before f2849b1fd059ec9b3281b771e6ac5aad9feee851 |
| Linux / Linux | affected 6.14; unaffected 0 before 6.14; unaffected 6.18.50 through 6.18.*; unaffected 7.2.4 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.