AZL-97716
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-97716.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-97716
- Upstream
- Published
- 2026-08-26T15:17:14Z
- Modified
- 2026-08-30T05:26:50Z
- Summary
- CVE-2026-80579 affecting package kernel 6.6.150.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
fbdev: clear fb_info->mode before deleting a videomode
fbsetvar() can delete a mode from info->modelist when userspace passes FBACTIVATEINVMODE through FBIOPUTVSCREENINFO. The code checks that the mode being deleted is not the current info->var and that fbcon is not using it, but it does not check fb_info->mode.
fbinfo->mode may still point into the modelist entry being deleted. If the entry is freed, later mode sysfs reads through showmode() can dereference a stale pointer.
Clear fbinfo->mode before calling fbdelete_videomode() when it matches the mode being removed.
- References