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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2022-50317 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: drm/bridge: megachips: Fix a null pointer dereference bug When removing the module we will get the following warning: [ 31.911505] i2c-core: driver [stdp2690-ge-b850v3-fw] unregistered [ 31.912484] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN PTI [ 31.913338] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] [ 31.915280] RIP: 0010:drm_bridge_remove+0x97/0x130 [ 31.921825] Call Trace: [ 31.922533] stdp4028_ge_b850v3_fw_remove+0x34/0x60 [megachips_stdpxxxx_ge_b850v3_fw] [ 31.923139] i2c_device_remove+0x181/0x1f0 The two bridges (stdp2690, stdp4028) do not probe at the same time, so the driver does not call ge_b850v3_resgiter() when probing, causing the driver to try to remove the object that has not been initialized. Fix this by checking whether both the bridges are probed.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/1daf69228e310938177119c4eadcd30fc75c81e0 kernel.org
https://git.kernel.org/stable/c/1ff673333d46d2c1b053ebd0c1c7c7c79e36943e kernel.org
https://git.kernel.org/stable/c/21764467ab396d9f08921e0a5ffa1214244e1ad9 kernel.org
https://git.kernel.org/stable/c/4610e7a4111fa3f3ce27c09d6d94008c55f1cd31 kernel.org
https://git.kernel.org/stable/c/5bc20bafcd87ba0858ab772cefc7047cb51bc249 kernel.org
https://git.kernel.org/stable/c/7371fad5cfe6eada6bb5523c895fd6074b15c2b9 kernel.org
https://git.kernel.org/stable/c/877e92e9b1bdeb580b31a46061005936be902cd4 kernel.org
https://git.kernel.org/stable/c/aaa512ad1e59f2edf8a9e4f2b167a44b24670679 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-50317
NVD Published Date:
09/15/2025
NVD Last Modified:
09/15/2025
Source:
kernel.org