Description
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.
Product status
d94a32ac688f953dc9a9f12b5b4139ecad841bbb (git) before 3c7d637bfc3dfbd6471c68bd767f7eb8b5b09eba
d94a32ac688f953dc9a9f12b5b4139ecad841bbb (git) before 1d0d361f4dbc2bb2003594f84e4b101fc6b508c0
d94a32ac688f953dc9a9f12b5b4139ecad841bbb (git) before d8c128fb6c2277d95f3f6a4ce28b82c8370031f6
02c1deb1bff2b6d242e29a51e56107495979a2b8 (git)
0ec03251d01494ef207089b5bd626becfd05fd86 (git)
6.15.10 (semver) before 6.16
6.16.1 (semver) before 6.17
6.17
Any version before 6.17
6.18.14 (semver)
6.19.4 (semver)
7.0 (original_commit_for_fix)
References
git.kernel.org/...c/3c7d637bfc3dfbd6471c68bd767f7eb8b5b09eba
git.kernel.org/...c/1d0d361f4dbc2bb2003594f84e4b101fc6b508c0
git.kernel.org/...c/d8c128fb6c2277d95f3f6a4ce28b82c8370031f6