CVE-2026-17051 Out-of-bounds write in the Intel SEDI IPM driver from an unvalidated inbound doorbell length

The Intel SEDI IPM inter-processor mailbox driver in drivers/ipm/ipmsedi.c handles an inbound message interrupt in ipmeventdispose. It read the peer-written doorbell register, extracted the payload length with IPCHEADERGETLENGTH, and passed that length straight to sediipcreadmsg to copy the messa...

CVE-2026-17051

The Intel SEDI IPM (inter-processor mailbox) driver in drivers/ipm/ipm_sedi.c contains an out-of-bounds write vulnerability. The ipm_event_dispose() function reads a peer-written doorbell register and extracts a payload length using IPC_HEADER_GET_LENGTH(), passing it directly to sedi_ipc_read_ms...