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WARNING: CPU: 1 PID: 15684 at kernel/rcu/tasks.h:893 trc_read_check_handler+0x16d/0x2e0 kernel/rcu/tasks.h:893
Modules linked in:
CPU: 1 PID: 15684 Comm: syz-executor.5 Not tainted 5.15.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:trc_read_check_handler+0x16d/0x2e0 kernel/rcu/tasks.h:893
Code: 04 00 00 ff ff ff ff 5b 5d 41 5c c3 be 04 00 00 00 48 c7 c7 20 dc 25 90 e8 b0 8a 5c 00 f0 ff 0d c9 db c4 0e 0f 85 35 ff ff ff <0f> 0b 31 c9 ba 01 00 00 00 be 03 00 00 00 48 c7 c7 40 f6 97 8b e8
RSP: 0000:ffffc90000dc0f78 EFLAGS: 00010047
RAX: 0000000000000001 RBX: ffff88809d003900 RCX: ffffffff81610050
RDX: fffffbfff204bb84 RSI: 0000000000000004 RDI: ffffffff9025dc20
RBP: ffff888011f61c80 R08: 0000000000000001 R09: 0000000000000003
R10: fffffbfff204bb84 R11: 0000000000000000 R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8880b9c32ac8
FS:  0000555557442400(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb17ac11ecb CR3: 0000000019da9000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 flush_smp_call_function_queue+0x34b/0x640 kernel/smp.c:663
 __sysvec_call_function_single+0x95/0x3d0 arch/x86/kernel/smp.c:248
 sysvec_call_function_single+0x8e/0xc0 arch/x86/kernel/smp.c:243
 </IRQ>
 asm_sysvec_call_function_single+0x12/0x20 arch/x86/include/asm/idtentry.h:646
RIP: 0010:finish_task_switch.isra.0+0x23c/0xa50 kernel/sched/core.c:4814
Code: 8b 3a 4c 89 e7 48 c7 02 00 00 00 00 ff d1 4d 85 ff 75 bf 4c 89 e7 e8 d3 00 e9 07 e8 3e 2c 2c 00 fb 65 48 8b 1c 25 40 f0 01 00 <48> 8d bb 18 15 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1
RSP: 0000:ffffc90002e7fa00 EFLAGS: 00000202
RAX: 0000000000000045 RBX: ffff88809d003900 RCX: 1ffffffff1fa449a
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90002e7fa40 R08: 0000000000000001 R09: ffffffff8fd0e957
R10: 0000000000000001 R11: 0000000000000001 R12: ffff8880b9d31a40
R13: ffff888011f61c80 R14: ffff8880181c3100 R15: ffff8880b9d31a58
 context_switch kernel/sched/core.c:4943 [inline]
 __schedule+0x948/0x26f0 kernel/sched/core.c:6287
 preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:6459
 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:35
 __raw_spin_unlock include/linux/spinlock_api_smp.h:152 [inline]
 _raw_spin_unlock+0x36/0x40 kernel/locking/spinlock.c:186
 spin_unlock include/linux/spinlock.h:403 [inline]
 filemap_map_pages+0x1216/0x1880 mm/filemap.c:3338
 do_fault_around mm/memory.c:4152 [inline]
 do_read_fault mm/memory.c:4167 [inline]
 do_fault mm/memory.c:4301 [inline]
 handle_pte_fault mm/memory.c:4559 [inline]
 __handle_mm_fault+0x28dd/0x5320 mm/memory.c:4694
 handle_mm_fault+0x1c8/0x790 mm/memory.c:4792
 do_user_addr_fault+0x48b/0x11c0 arch/x86/mm/fault.c:1397
 handle_page_fault arch/x86/mm/fault.c:1485 [inline]
 exc_page_fault+0x9e/0x180 arch/x86/mm/fault.c:1541
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:568
RIP: 0033:0x7fb17ac11ecb
Code: ed 0f 85 60 01 00 00 64 4c 8b 0c 25 10 00 00 00 45 31 c0 4d 8d 91 d0 02 00 00 31 d2 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 89 00 00 00 41 89 c5 85 c0 0f 85 90 00 00
RSP: 002b:00007ffe5a3b1460 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fb17ac11ecb
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000555557442400
R10: 00005555574426d0 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000001 R14: 0000000000000001 R15: 00007ffe5a3b1540
----------------
Code disassembly (best guess):
   0:	8b 3a                	mov    (%rdx),%edi
   2:	4c 89 e7             	mov    %r12,%rdi
   5:	48 c7 02 00 00 00 00 	movq   $0x0,(%rdx)
   c:	ff d1                	callq  *%rcx
   e:	4d 85 ff             	test   %r15,%r15
  11:	75 bf                	jne    0xffffffd2
  13:	4c 89 e7             	mov    %r12,%rdi
  16:	e8 d3 00 e9 07       	callq  0x7e900ee
  1b:	e8 3e 2c 2c 00       	callq  0x2c2c5e
  20:	fb                   	sti
  21:	65 48 8b 1c 25 40 f0 	mov    %gs:0x1f040,%rbx
  28:	01 00
* 2a:	48 8d bb 18 15 00 00 	lea    0x1518(%rbx),%rdi <-- trapping instruction
  31:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  38:	fc ff df
  3b:	48 89 fa             	mov    %rdi,%rdx
  3e:	48                   	rex.W
  3f:	c1                   	.byte 0xc1