CVE-2026-89859

In the Linux kernel, the following vulnerability has been resolved:

scsi: qla2xxx: Zero dport diagnostics buffer to avoid info leak

qla2x00_do_dport_diagnostics() allocates the qla_dport_diag response

buffer with kmalloc_obj() (non-zeroing) and, on success, copies the full

sizeof(*dd) back to user space via sg_copy_from_buffer(). The inbound

sg_copy_to_buffer() only fills as many bytes as the user request payload

provides, and qla26xx_dport_diagnostics() zeroes only dd->buf. The

options and unused[] fields are therefore copied out uninitialized,

leaking kernel heap contents to user space.

Allocate with kzalloc_obj(), matching qla2x00_do_dport_diagnostics_v2().