Answer in brief
CVE-2022-50317 records a Medium severity (CVSS 5.5) vulnerability in drm/bridge: megachips: Fix a null pointer dereference bug. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=7649972d97fb98578fbc4a351416cf72895e7c4d <aaa512ad1e59f2edf8a9e4f2b167a44b24670679 || >=16e3827904932eccfba0915f0c93b519de3536ac <5bc20bafcd87ba0858ab772cefc7047cb51bc249 || >=50ad94f8654a53ec9ca3604a7a23cbaf166e0119 <1daf69228e310938177119c4eadcd30fc75c81e0 || >=b8d10f601f226f055df8b5368d7ea7f369136cd5 <877e92e9b1bdeb580b31a46061005936be902cd4 || >=405856460d3e7aefb7c1aef047ec88fc4ef2e2a5 <4610e7a4111fa3f3ce27c09d6d94008c55f1cd31 || >=11632d4aa2b3f126790e81a4415d6c23103cf8bb <21764467ab396d9f08921e0a5ffa1214244e1ad9 || >=11632d4aa2b3f126790e81a4415d6c23103cf8bb <7371fad5cfe6eada6bb5523c895fd6074b15c2b9 || >=11632d4aa2b3f126790e81a4415d6c23103cf8bb <1ff673333d46d2c1b053ebd0c1c7c7c79e36943e || e449461989f0674f188d30494ffd3f5ba74c1a05 || >=4.14.263 <4.14.296 || >=4.19.226 <4.19.262 || >=5.4.174 <5.4.220 || >=5.10.94 <5.10.150 || >=5.15.17 <5.15.75 || >=5.16.3 <5.17 | aaa512ad1e59f2edf8a9e4f2b167a44b24670679, 5bc20bafcd87ba0858ab772cefc7047cb51bc249, 1daf69228e310938177119c4eadcd30fc75c81e0, 877e92e9b1bdeb580b31a46061005936be902cd4, 4610e7a4111fa3f3ce27c09d6d94008c55f1cd31, 21764467ab396d9f08921e0a5ffa1214244e1ad9, 7371fad5cfe6eada6bb5523c895fd6074b15c2b9, 1ff673333d46d2c1b053ebd0c1c7c7c79e36943e, 4.14.296, 4.19.262, 5.4.220, 5.10.150, 5.15.75, 5.17 |
| Linux/Linuxgeneric | 5.17 | Not reported |
Published upstream
Sep 15, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 5, 2026
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.
Quoted source text, attributed separately from HOL analysis.