CVE-2022-50317
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2022
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
drm/bridge: megachips: Fix a null pointer dereference bug
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 7649972d97fb98578fbc4a351416cf72895e7c4d | affected | git | aaa512ad1e59f2edf8a9e4f2b167a44b24670679 | Unavailable | None listed |
| 16e3827904932eccfba0915f0c93b519de3536ac | affected | git | 5bc20bafcd87ba0858ab772cefc7047cb51bc249 | Unavailable | None listed |
| 50ad94f8654a53ec9ca3604a7a23cbaf166e0119 | affected | git | 1daf69228e310938177119c4eadcd30fc75c81e0 | Unavailable | None listed |
| b8d10f601f226f055df8b5368d7ea7f369136cd5 | affected | git | 877e92e9b1bdeb580b31a46061005936be902cd4 | Unavailable | None listed |
| 405856460d3e7aefb7c1aef047ec88fc4ef2e2a5 | affected | git | 4610e7a4111fa3f3ce27c09d6d94008c55f1cd31 | Unavailable | None listed |
| 11632d4aa2b3f126790e81a4415d6c23103cf8bb | affected | git | 21764467ab396d9f08921e0a5ffa1214244e1ad9 | Unavailable | None listed |
| 11632d4aa2b3f126790e81a4415d6c23103cf8bb | affected | git | 7371fad5cfe6eada6bb5523c895fd6074b15c2b9 | Unavailable | None listed |
| 11632d4aa2b3f126790e81a4415d6c23103cf8bb | affected | git | 1ff673333d46d2c1b053ebd0c1c7c7c79e36943e | Unavailable | None listed |
| e449461989f0674f188d30494ffd3f5ba74c1a05 | affected | git | Unavailable | Unavailable | None listed |
| 4.14.263 | affected | semver | 4.14.296 | Unavailable | None listed |
| 4.19.226 | affected | semver | 4.19.262 | Unavailable | None listed |
| 5.4.174 | affected | semver | 5.4.220 | Unavailable | None listed |
| 5.10.94 | affected | semver | 5.10.150 | Unavailable | None listed |
| 5.15.17 | affected | semver | 5.15.75 | Unavailable | None listed |
| 5.16.3 | affected | semver | 5.17 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.17 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.17 | Unavailable | None listed |
| 4.14.296 | unaffected | semver | Unavailable | 4.14.* | None listed |
| 4.19.262 | unaffected | semver | Unavailable | 4.19.* | None listed |
| 5.4.220 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.150 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.75 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 5.19.17 | unaffected | semver | Unavailable | 5.19.* | None listed |
| 6.0.3 | unaffected | semver | Unavailable | 6.0.* | None listed |
| 6.1 | unaffected | original_commit_for_fix | Unavailable | * | None listed |