Skip to content
CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-23149

drm: Do not allow userspace to trigger kernel warnings in drm_gem_change_handle_ioctl()

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: drm: Do not allow userspace to trigger kernel warnings in drm_gem_change_handle_ioctl() Since GEM bo handles are u32 in the uapi and the internal implementation uses idr_alloc() which uses int ranges, passing a new handle larger than INT_MAX trivially triggers a kernel warning: idr_alloc(): ... if (WARN_ON_ONCE(start < 0)) return -EINVAL; ... Fix it by rejecting new handles above INT_MAX and at the same time make the end limit calculation more obvious by moving into int domain.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 53096728b8910c6916ecc6c46a5abc5c678b58d9 to < ae8831ee0fb2f5f41f39722e7b3749d65bb78d08affected
  • 53096728b8910c6916ecc6c46a5abc5c678b58d9 to < 12f15d52d38ac53f7c70ea3d4b3d76afed04e064affected

Linux Linux

Default version status: affected

  • 6.18affected
  • 0 to < 6.18unaffected
  • 6.18.9 to ≤ 6.18.*unaffected
  • 6.19 to ≤ *unaffected

References