Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Linux Linux — video: fbdev: s3fb: Check the size of screen before memset_io()
AV AC PR UI S C I A CVSS EPSS %ile KEV
L L L N U H H H 7.8 .0018 7.3 —
AFFECTED
Product Versions Fixed
Linux a268422de8bf1b4c0cb97987b6c329c9f6a3da4b – —
Linux 2.6.21 – 4.14.291
TIMELINE
Jun 18 Reserved by Linux
Jun 18 Published (CNA: Linux)
Aug 4 RESCORED — CVE-2022-50097 (Linux). CVSS 7.1 → 7.8 (NVD).
Description
In the Linux kernel, the following vulnerability has been resolved:
video: fbdev: s3fb: Check the size of screen before memset_io()
In the function s3fb_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:
[ 54.083733] BUG: unable to handle page fault for address: ffffc90003000000
[ 54.083742] #PF: supervisor write access in kernel mode
[ 54.083744] #PF: error_code(0x0002) - not-present page
[ 54.083760] RIP: 0010:memset_orig+0x33/0xb0
[ 54.083782] Call Trace:
[ 54.083788] s3fb_set_par+0x1ec6/0x4040
[ 54.083806] fb_set_var+0x604/0xeb0
[ 54.083836] do_fb_ioctl+0x234/0x670
Fix the this by checking the value of 'screen_size' before memset_io().
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| June 18, 2025 | Reserved | Reserved by Linux |
| June 18, 2025 | Published | Published (CNA: Linux) |
| August 4, 2026 | RESCORED | RESCORED — CVE-2022-50097 (Linux). CVSS 7.1 → 7.8 (NVD). |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Linux | Linux | — | a268422de8bf1b4c0cb97987b6c329c9f6a3da4b | — |
| Linux | Linux | — | 2.6.21 | 4.14.291 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2022-50097 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.