CVE-2022-50099
video: fbdev: arkfb: Check the size of screen before memset_io()
Reported by linux · Published June 18, 2025
In the Linux kernel, the following vulnerability has been resolved: video: fbdev: arkfb: Check the size of screen before memset_io() In the function arkfb_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: [ 659.399066] BUG: unable to handle page fault for address: ffffc90003000000 [ 659.399077] #PF: supervisor write access in kernel mode [ 659.399079] #PF: error_code(0x0002) - not-present page [ 659.399094] RIP: 0010:memset_orig+0x33/0xb0 [ 659.399116] Call Trace: [ 659.399122] arkfb_set_par+0x143f/0x24c0 [ 659.399130] fb_set_var+0x604/0xeb0 [ 659.399161] do_fb_ioctl+0x234/0x670 [ 659.399189] fb_ioctl+0xdd/0x130 Fix the this by checking the value of 'screen_size' before memset_io().
EPSS 0.26% · 17.7th percentile
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | 681e14730c73cc2c71af282c001de6bc71c22f00, 681e14730c73cc2c71af282c001de6bc71c22f00, 681e14730c73cc2c71af282c001de6bc71c22f00 |
| Linux | Linux | 2.6.22, 0, 4.14.291 |
| linux | linux_kernel | 2.6.22, 2.6.22, 2.6.22 |
| Linux | Linux | 681e14730c73cc2c71af282c001de6bc71c22f00, 681e14730c73cc2c71af282c001de6bc71c22f00, 681e14730c73cc2c71af282c001de6bc71c22f00 |
Timeline
- Jun 18, 2025 CVE Published
- Jun 29, 2025 EPSS Score (29 in total, the first dated here)
- May 23, 2026 Coalition ESS Score
- Jun 2, 2026 Security Advisory (239 in total, the first dated here)
- Oct 13, 2026 CVE Updated
- Oct 18, 2026 Distribution Patch (228 in total, the first dated here)
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln CVE-2022-50099
vulnetix vdb fixes CVE-2022-50099Or with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
"https://api.vdb.vulnetix.com/v2/vuln/CVE-2022-50099/fixes/registry"The Community plan is free and allows 50 queries a day. Get a free API key · API quickstart