Description
In the Linux kernel, the following vulnerability has been resolved: drm/panel: Fix a possible null-pointer dereference in jdi_panel_dsi_remove() In jdi_panel_dsi_remove(), jdi is explicitly checked, indicating that it may be NULL: if (!jdi) mipi_dsi_detach(dsi); However, when jdi is NULL, the function does not return and continues by calling jdi_panel_disable(): err = jdi_panel_disable(&jdi->base); Inside jdi_panel_disable(), jdi is dereferenced unconditionally, which can lead to a NULL-pointer dereference: struct jdi_panel *jdi = to_panel_jdi(panel); backlight_disable(jdi->backlight); To prevent such a potential NULL-pointer dereference, return early from jdi_panel_dsi_remove() when jdi is NULL.
Product status
25205087df1ffe06ccea9302944ed1f77dc68c6f (git) before ec2f37bbb733cdd7ed7d04171fca728a532414d5
25205087df1ffe06ccea9302944ed1f77dc68c6f (git) before 2f5427d8726b22b807beec248d7d6bf88e291e0b
25205087df1ffe06ccea9302944ed1f77dc68c6f (git) before 83ce0085fabf757b039322928188ad78e962d609
25205087df1ffe06ccea9302944ed1f77dc68c6f (git) before 95eed73b871111123a8b1d31cb1fce7e902e49ea
6.7
Any version before 6.7
6.12.75 (semver)
6.18.16 (semver)
6.19.6 (semver)
7.0 (original_commit_for_fix)
References
git.kernel.org/...c/ec2f37bbb733cdd7ed7d04171fca728a532414d5
git.kernel.org/...c/2f5427d8726b22b807beec248d7d6bf88e291e0b
git.kernel.org/...c/83ce0085fabf757b039322928188ad78e962d609
git.kernel.org/...c/95eed73b871111123a8b1d31cb1fce7e902e49ea