CVE-2022-50101
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)
video: fbdev: vt8623fb: Check the size of screen before memset_io()
In the Linux kernel, the following vulnerability has been resolved: video: fbdev: vt8623fb: Check the size of screen before memset_io() In the function vt8623fb_set_par(), the value of 'screen_size' is calculated by the user input. If the user provides the improper value, the value of 'screen_size' may larger than 'info->screen_size', which may cause the following bug: [ 583.339036] BUG: unable to handle page fault for address: ffffc90005000000 [ 583.339049] #PF: supervisor write access in kernel mode [ 583.339052] #PF: error_code(0x0002) - not-present page [ 583.339074] RIP: 0010:memset_orig+0x33/0xb0 [ 583.339110] Call Trace: [ 583.339118] vt8623fb_set_par+0x11cd/0x21e0 [ 583.339146] fb_set_var+0x604/0xeb0 [ 583.339181] do_fb_ioctl+0x234/0x670 [ 583.339209] fb_ioctl+0xdd/0x130 Fix the this by checking the value of 'screen_size' before memset_io().
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) |
|---|---|---|---|---|---|
| 558b7bd86c32978648cda5deb5c758d77ef0c165 | affected | git | 73280a184aa2e1a625ce54ce761042955cc79cd0 | Unavailable | None listed |
| 558b7bd86c32978648cda5deb5c758d77ef0c165 | affected | git | 52ad9bfeb8a0e62de30de6d39e8a49a72dd78150 | Unavailable | None listed |
| 558b7bd86c32978648cda5deb5c758d77ef0c165 | affected | git | d71528ccdc7ae8d7500d414091d27805c51407a2 | Unavailable | None listed |
| 558b7bd86c32978648cda5deb5c758d77ef0c165 | affected | git | bd8269e57621e5b38cc0b4bd2fa02e85c9f2a441 | Unavailable | None listed |
| 558b7bd86c32978648cda5deb5c758d77ef0c165 | affected | git | 4a3cef1eaced13ba9b55381d46bfad937a3dac2c | Unavailable | None listed |
| 558b7bd86c32978648cda5deb5c758d77ef0c165 | affected | git | b17caec5127bba6f90af92bcc85871df54548ac0 | Unavailable | None listed |
| 558b7bd86c32978648cda5deb5c758d77ef0c165 | affected | git | c7a3f41e4b133d4dd25bc996b69039b19a34d69d | Unavailable | None listed |
| 558b7bd86c32978648cda5deb5c758d77ef0c165 | affected | git | ec0754c60217248fa77cc9005d66b2b55200ac06 | 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) |
|---|---|---|---|---|---|
| 2.6.22 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.22 | Unavailable | None listed |
| 4.14.291 | unaffected | semver | Unavailable | 4.14.* | None listed |
| 4.19.256 | unaffected | semver | Unavailable | 4.19.* | None listed |
| 5.4.211 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.137 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.61 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 5.18.18 | unaffected | semver | Unavailable | 5.18.* | None listed |
| 5.19.2 | unaffected | semver | Unavailable | 5.19.* | None listed |
| 6.0 | unaffected | original_commit_for_fix | Unavailable | * | None listed |