In the Linux kernel, the following vulnerability has been resolved:
drm/bridge: cadence: cdns-mhdp8546-core: Set the mhdp connector earlier in atomic_enable()
In case if we get errors in cdns_mhdp_link_up() or cdns_mhdp_reg_read()
in atomic_enable, we will go to cdns_mhdp_modeset_retry_fn() and will hit
NULL pointer while trying to access the mutex. We need the connector to
be set before that. Unlike in legacy cases with flag
!DRM_BRIDGE_ATTACH_NO_CONNECTOR, we do not have connector initialised
in bridge_attach(), so add the mhdp->connector_ptr in device structure
to handle both cases with DRM_BRIDGE_ATTACH_NO_CONNECTOR and
!DRM_BRIDGE_ATTACH_NO_CONNECTOR, set it in atomic_enable() earlier to
avoid possible NULL pointer dereference in recovery paths like
modeset_retry_fn() with the DRM_BRIDGE_ATTACH_NO_CONNECTOR flag set.
References
Configurations
Configuration 1 (hide)
|
History
21 Jul 2026, 17:29
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Linux linux Kernel
Linux |
|
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| References | () https://git.kernel.org/stable/c/1af3b42e08a957e53bab8e1897393fe0a27d9fbf - Patch | |
| References | () https://git.kernel.org/stable/c/43d6508ddbf9fb974fbc359a033154f78c9d4c8b - Patch | |
| References | () https://git.kernel.org/stable/c/5302015daf26ef6b48e067f2b86c9482ac19e015 - Patch | |
| References | () https://git.kernel.org/stable/c/a3611554e599d1a24b45fd8415bacb72ce861e4b - Patch | |
| References | () https://git.kernel.org/stable/c/cf2ac2cac8b319f89b3a3851ca0c5ffb6a549575 - Patch | |
| CWE | CWE-476 |
24 Jun 2026, 17:17
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-06-24 17:17
Updated : 2026-07-21 17:29
NVD link : CVE-2026-53058
Mitre link : CVE-2026-53058
CVE.ORG link : CVE-2026-53058
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-476
NULL Pointer Dereference