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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
25205087df1ffe06ccea9302944ed1f77dc68c6f to < ec2f37bbb733cdd7ed7d04171fca728a532414d5affected25205087df1ffe06ccea9302944ed1f77dc68c6f to < 2f5427d8726b22b807beec248d7d6bf88e291e0baffected25205087df1ffe06ccea9302944ed1f77dc68c6f to < 83ce0085fabf757b039322928188ad78e962d609affected25205087df1ffe06ccea9302944ed1f77dc68c6f to < 95eed73b871111123a8b1d31cb1fce7e902e49eaaffected
Linux Linux
Default version status: affected
6.7affected0 to < 6.7unaffected6.12.75 to ≤ 6.12.*unaffected6.18.16 to ≤ 6.18.*unaffected6.19.6 to ≤ 6.19.*unaffected7.0 to ≤ *unaffected