Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: drm/panthor: validate userspace queue count against initialized firmware slot count In panthor_drv.c:panthor_ioctl_group_create(), the queue count is validated against the hardcoded maximum: if (!args->queues.count || args->queues.count > MAX_CS_PER_CSG) return -EINVAL; However, if the firmware reports fewer slots than MAX_CS_PER_CSG, panthor_fw_init_ifaces() will only initialize that smaller number of stream interfaces. If unprivileged userspace requests more queues than the firmware reported (but no more than MAX_CS_PER_CSG), cs_slot_prog_locked() fetches an uninitialized stream interface and may crash when dereferencing cs_iface->input->ringbuf_base.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected de85488138247d034eb3241840424a54d660926b before 4487cf79bf173f2b426a02d102076f8a20d23b96; affected de85488138247d034eb3241840424a54d660926b before fdee3570b282a6c8699aea63fa5694355e010ec9; affected de85488138247d034eb3241840424a54d660926b before 9be126be5f78bc331a930295af97c9b1f9158f06; affected de85488138247d034eb3241840424a54d660926b before ec86c43dcfff68eab4db9bdafcd3e2b16e342e18 |
| Linux / Linux | affected 6.10; unaffected 0 before 6.10; unaffected 6.12.113 through 6.12.*; unaffected 6.18.57 through 6.18.*; unaffected 7.2.11 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.