Unable to handle kernel access to user memory without uaccess routines at virtual address 00000000217f80d0 Oops [#1] Modules linked in: CPU: 0 PID: 3560 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 : ffffffe022a33ec0 gp : ffffffe004588b08 tp : ffffffe00781c740 t0 : 0000000000000000 t1 : 0000000000000001 t2 : 0000000000000014 s0 : ffffffe022a33ee0 s1 : 00000000217f80d0 a0 : 000000000000000c a1 : 0000000000000003 a2 : 1ffffffc0cfa8708 a3 : ffffffe0000d30bc a4 : bcc65d7a0afba500 a5 : 0000000000000000 a6 : 0000000000f00000 a7 : ffffffe000084f3a s2 : 0000000000040000 s3 : ffffffe007da4740 s4 : ffffffe022a37fe0 s5 : 0000000000004020 s6 : ffffffe067d55ec0 s7 : ffffffe067d55910 s8 : ffffffe067d54ed8 s9 : ffffffe067d55ec0 s10: ffffffe007da4b78 s11: 0000009822c86634 t3 : bcc65d7a0afba500 t4 : ffffffc400ccc987 t5 : ffffffc400ccc98c t6 : 00000000000821e8 status: 0000000000000120 badaddr: 00000000217f80d0 cause: 000000000000000f Call Trace: [] schedule_tail+0x72/0xb2 kernel/sched/core.c:4262 [] ret_from_exception+0x0/0x14 ---[ end trace 9fa456a9a1c990c0 ]---