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CVE Watch23 de out. de 2026

CVE-2026-99003

In the Linux kernel, the following vulnerability has been resolved: drm/panthor: validate userspace queue count against initialized firmwar

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Publicado: 23 de out. de 2026 · Última mod.: 23 de out. de 2026

EPSS · 30d
0.2%EPSS · 30 dias0.2%
2026-10-252026-11-07
Descrição técnica

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.

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