Answer in brief
CVE-2022-50101 records a High severity (CVSS 7.8) vulnerability in video: fbdev: vt8623fb: Check the size of screen before memset_io(). 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.
Answer in brief
CVE-2022-50101 records a High severity (CVSS 7.8) vulnerability in video: fbdev: vt8623fb: Check the size of screen before memset_io(). 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 7.8. 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 | >=558b7bd86c32978648cda5deb5c758d77ef0c165 <73280a184aa2e1a625ce54ce761042955cc79cd0 || >=558b7bd86c32978648cda5deb5c758d77ef0c165 <52ad9bfeb8a0e62de30de6d39e8a49a72dd78150 || >=558b7bd86c32978648cda5deb5c758d77ef0c165 <d71528ccdc7ae8d7500d414091d27805c51407a2 || >=558b7bd86c32978648cda5deb5c758d77ef0c165 <bd8269e57621e5b38cc0b4bd2fa02e85c9f2a441 || >=558b7bd86c32978648cda5deb5c758d77ef0c165 <4a3cef1eaced13ba9b55381d46bfad937a3dac2c || >=558b7bd86c32978648cda5deb5c758d77ef0c165 <b17caec5127bba6f90af92bcc85871df54548ac0 || >=558b7bd86c32978648cda5deb5c758d77ef0c165 <c7a3f41e4b133d4dd25bc996b69039b19a34d69d || >=558b7bd86c32978648cda5deb5c758d77ef0c165 <ec0754c60217248fa77cc9005d66b2b55200ac06 | 73280a184aa2e1a625ce54ce761042955cc79cd0, 52ad9bfeb8a0e62de30de6d39e8a49a72dd78150, d71528ccdc7ae8d7500d414091d27805c51407a2, bd8269e57621e5b38cc0b4bd2fa02e85c9f2a441, 4a3cef1eaced13ba9b55381d46bfad937a3dac2c, b17caec5127bba6f90af92bcc85871df54548ac0, c7a3f41e4b133d4dd25bc996b69039b19a34d69d, ec0754c60217248fa77cc9005d66b2b55200ac06 |
| Linux/Linuxgeneric | 2.6.22 | Not reported |
Published upstream
Jun 18, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
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().
Quoted source text, attributed separately from HOL analysis.
CVSS is 7.8. 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 | >=558b7bd86c32978648cda5deb5c758d77ef0c165 <73280a184aa2e1a625ce54ce761042955cc79cd0 || >=558b7bd86c32978648cda5deb5c758d77ef0c165 <52ad9bfeb8a0e62de30de6d39e8a49a72dd78150 || >=558b7bd86c32978648cda5deb5c758d77ef0c165 <d71528ccdc7ae8d7500d414091d27805c51407a2 || >=558b7bd86c32978648cda5deb5c758d77ef0c165 <bd8269e57621e5b38cc0b4bd2fa02e85c9f2a441 || >=558b7bd86c32978648cda5deb5c758d77ef0c165 <4a3cef1eaced13ba9b55381d46bfad937a3dac2c || >=558b7bd86c32978648cda5deb5c758d77ef0c165 <b17caec5127bba6f90af92bcc85871df54548ac0 || >=558b7bd86c32978648cda5deb5c758d77ef0c165 <c7a3f41e4b133d4dd25bc996b69039b19a34d69d || >=558b7bd86c32978648cda5deb5c758d77ef0c165 <ec0754c60217248fa77cc9005d66b2b55200ac06 | 73280a184aa2e1a625ce54ce761042955cc79cd0, 52ad9bfeb8a0e62de30de6d39e8a49a72dd78150, d71528ccdc7ae8d7500d414091d27805c51407a2, bd8269e57621e5b38cc0b4bd2fa02e85c9f2a441, 4a3cef1eaced13ba9b55381d46bfad937a3dac2c, b17caec5127bba6f90af92bcc85871df54548ac0, c7a3f41e4b133d4dd25bc996b69039b19a34d69d, ec0754c60217248fa77cc9005d66b2b55200ac06 |
| Linux/Linuxgeneric | 2.6.22 | Not reported |
Published upstream
Jun 18, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
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().
Quoted source text, attributed separately from HOL analysis.