Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: pinctrl: canaan: k230: Fix NULL pointer dereference when parsing devicetree When probing the k230 pinctrl driver, the kernel triggers a NULL pointer dereference. The crash trace showed: [ 0.732084] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000068 [ 0.740737] ... [ 0.776296] epc : k230_pinctrl_probe+0x1be/0x4fc In k230_pinctrl_parse_functions(), we attempt to retrieve the device pointer via info->pctl_dev->dev, but info->pctl_dev is only initialized after k230_pinctrl_parse_dt() completes. At the time of DT parsing, info->pctl_dev is still NULL, leading to the invalid dereference of info->pctl_dev->dev. Use the already available device pointer from platform_device instead of accessing through uninitialized pctl_dev.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected d94a32ac688f953dc9a9f12b5b4139ecad841bbb before 3c7d637bfc3dfbd6471c68bd767f7eb8b5b09eba; affected d94a32ac688f953dc9a9f12b5b4139ecad841bbb before 1d0d361f4dbc2bb2003594f84e4b101fc6b508c0; affected d94a32ac688f953dc9a9f12b5b4139ecad841bbb before d8c128fb6c2277d95f3f6a4ce28b82c8370031f6; affected 02c1deb1bff2b6d242e29a51e56107495979a2b8; affected 0ec03251d01494ef207089b5bd626becfd05fd86; affected 6.15.10 before 6.16; affected 6.16.1 before 6.17 |
| Linux / Linux | affected 6.17; unaffected 0 before 6.17; unaffected 6.18.14 through 6.18.*; unaffected 6.19.4 through 6.19.*; unaffected 7.0 through * |
CWE
No CWE identifiers supplied.