Unable to handle kernel access to user memory without uaccess routines at virtual address 000000003df140d0 Oops [#1] Modules linked in: CPU: 0 PID: 3742 Comm: syz-executor.1 Not tainted 5.12.0-rc5-syzkaller-00715-ga5e13c6df0e4 #0 Hardware name: riscv-virtio,qemu (DT) epc : schedule_tail+0x72/0xb2 kernel/sched/core.c:4262 ra : task_pid_vnr include/linux/sched.h:1421 [inline] ra : schedule_tail+0x70/0xb2 kernel/sched/core.c:4262 epc : ffffffe00008f4c4 ra : ffffffe00008f4c2 sp : ffffffe00a6f7ec0 gp : ffffffe004588b08 tp : ffffffe0078b8000 t0 : 0000000000000000 t1 : 0000000000000001 t2 : 00000000000f4240 s0 : ffffffe00a6f7ee0 s1 : 000000003df140d0 a0 : 000000000000004a a1 : 0000000000000003 a2 : 1ffffffc0cfa8708 a3 : ffffffe0000d30bc a4 : 25daea830639bb00 a5 : 0000000000000000 a6 : 0000000000f00000 a7 : ffffffe0001041aa s2 : 0000000000040000 s3 : ffffffe00a248000 s4 : ffffffe0057b3fe0 s5 : 0000000000004000 s6 : ffffffe067d55ec0 s7 : ffffffe067d55910 s8 : ffffffe067d54ed8 s9 : ffffffe067d55ec0 s10: ffffffe00a248438 s11: 000000b9ac7f3e90 t3 : 25daea830639bb00 t4 : ffffffc403f887b2 t5 : ffffffc403f887ba t6 : 0000000000040000 status: 0000000000000120 badaddr: 000000003df140d0 cause: 000000000000000f Call Trace: [] schedule_tail+0x72/0xb2 kernel/sched/core.c:4262 [] ret_from_exception+0x0/0x14 ---[ end trace 58b5eb98d8035b1b ]---