Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 53096728b8910c6916ecc6c46a5abc5c678b58d9 before ae8831ee0fb2f5f41f39722e7b3749d65bb78d08; affected 53096728b8910c6916ecc6c46a5abc5c678b58d9 before 12f15d52d38ac53f7c70ea3d4b3d76afed04e064 |
| Linux / Linux | affected 6.18; unaffected 0 before 6.18; unaffected 6.18.9 through 6.18.*; unaffected 6.19 through * |
CWE
No CWE identifiers supplied.