Warning: Permanently added '10.128.0.200' (ECDSA) to the list of known hosts. 2023/03/12 16:37:39 fuzzer started syzkaller login: [ 58.343438][ T5069] ------------[ cut here ]------------ [ 58.349084][ T5069] WARNING: CPU: 0 PID: 5069 at include/linux/cpumask.h:143 c_start+0x1da/0x250 [ 58.358146][ T5069] Modules linked in: [ 58.362056][ T5069] CPU: 0 PID: 5069 Comm: syz-fuzzer Not tainted 6.3.0-rc1-syzkaller-00242-g81ff855485a3 #0 [ 58.372306][ T5069] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 58.382470][ T5069] RIP: 0010:c_start+0x1da/0x250 [ 58.387401][ T5069] Code: 99 11 8c e8 b8 88 52 00 4c 89 e0 5b 5d 41 5c 41 5d 41 5e c3 f3 48 0f bc db e8 a2 88 52 00 89 db e9 38 ff ff ff e8 96 88 52 00 <0f> 0b e9 c1 fe ff ff 48 c7 c7 c0 45 78 8e e8 03 15 a4 00 e9 67 ff [ 58.407103][ T5069] RSP: 0018:ffffc9000393fc68 EFLAGS: 00010293 [ 58.413187][ T5069] RAX: 0000000000000000 RBX: 0000000000000007 RCX: 0000000000000000 [ 58.421212][ T5069] RDX: ffff8880253b9d40 RSI: ffffffff813279da RDI: 0000000000000004 [ 58.429311][ T5069] RBP: ffffffff8e7845c0 R08: 0000000000000004 R09: 0000000000000007 [ 58.437357][ T5069] R10: 0000000000000002 R11: 0000000000000000 R12: ffff88801c250718 [ 58.445353][ T5069] R13: 0000000000000008 R14: 0000000000000002 R15: 0000000000000000 [ 58.453426][ T5069] FS: 0000000001ec53d0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 58.462421][ T5069] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.469077][ T5069] CR2: 000000c000067ff8 CR3: 000000007aa50000 CR4: 00000000003506f0 [ 58.477091][ T5069] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 58.485056][ T5069] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 58.493100][ T5069] Call Trace: [ 58.496408][ T5069] <TASK> [ 58.499336][ T5069] seq_read_iter+0x2ca/0x12d0 [ 58.504027][ T5069] proc_reg_read_iter+0x115/0x2d0 [ 58.509117][ T5069] vfs_read+0x681/0x930 [ 58.513290][ T5069] ? kernel_read+0x1c0/0x1c0 [ 58.517930][ T5069] ? __mutex_unlock_slowpath+0x157/0x5e0 [ 58.523589][ T5069] ? __fget_files+0x26a/0x480 [ 58.528361][ T5069] ksys_read+0x12b/0x250 [ 58.532619][ T5069] ? vfs_write+0xe10/0xe10 [ 58.537116][ T5069] ? syscall_enter_from_user_mode+0x26/0xb0 [ 58.543036][ T5069] do_syscall_64+0x39/0xb0 [ 58.547518][ T5069] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 58.553434][ T5069] RIP: 0033:0x403ace [ 58.557370][ T5069] Code: 48 89 6c 24 38 48 8d 6c 24 38 e8 0d 00 00 00 48 8b 6c 24 38 48 83 c4 40 c3 cc cc cc 49 89 f2 48 89 fa 48 89 ce 48 89 df 0f 05 <48> 3d 01 f0 ff ff 76 15 48 f7 d8 48 89 c1 48 c7 c0 ff ff ff ff 48 [ 58.577077][ T5069] RSP: 002b:000000c000bfb308 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 [ 58.585505][ T5069] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000403ace [ 58.593535][ T5069] RDX: 0000000000001000 RSI: 000000c000506000 RDI: 0000000000000003 [ 58.601613][ T5069] RBP: 000000c000bfb348 R08: 0000000000000000 R09: 0000000000000000 [ 58.609640][ T5069] R10: 0000000000000000 R11: 0000000000000202 R12: 000000c000bfb488 [ 58.617672][ T5069] R13: 0000000000000000 R14: 000000c0000061a0 R15: 1000000000000000 [ 58.625651][ T5069] </TASK> [ 58.628715][ T5069] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 58.636007][ T5069] CPU: 0 PID: 5069 Comm: syz-fuzzer Not tainted 6.3.0-rc1-syzkaller-00242-g81ff855485a3 #0 [ 58.645973][ T5069] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 58.656016][ T5069] Call Trace: [ 58.659286][ T5069] <TASK> [ 58.662209][ T5069] dump_stack_lvl+0xd9/0x150 [ 58.666796][ T5069] panic+0x688/0x730 [ 58.670688][ T5069] ? panic_smp_self_stop+0x90/0x90 [ 58.675807][ T5069] ? show_trace_log_lvl+0x285/0x390 [ 58.681013][ T5069] ? c_start+0x1da/0x250 [ 58.685251][ T5069] check_panic_on_warn+0xb1/0xc0 [ 58.690186][ T5069] __warn+0xf2/0x4f0 [ 58.694075][ T5069] ? c_start+0x1da/0x250 [ 58.698316][ T5069] report_bug+0x2da/0x500 [ 58.702644][ T5069] handle_bug+0x3c/0x70 [ 58.706795][ T5069] exc_invalid_op+0x18/0x50 [ 58.711294][ T5069] asm_exc_invalid_op+0x1a/0x20 [ 58.716144][ T5069] RIP: 0010:c_start+0x1da/0x250 [ 58.720991][ T5069] Code: 99 11 8c e8 b8 88 52 00 4c 89 e0 5b 5d 41 5c 41 5d 41 5e c3 f3 48 0f bc db e8 a2 88 52 00 89 db e9 38 ff ff ff e8 96 88 52 00 <0f> 0b e9 c1 fe ff ff 48 c7 c7 c0 45 78 8e e8 03 15 a4 00 e9 67 ff [ 58.740605][ T5069] RSP: 0018:ffffc9000393fc68 EFLAGS: 00010293 [ 58.746681][ T5069] RAX: 0000000000000000 RBX: 0000000000000007 RCX: 0000000000000000 [ 58.754670][ T5069] RDX: ffff8880253b9d40 RSI: ffffffff813279da RDI: 0000000000000004 [ 58.762647][ T5069] RBP: ffffffff8e7845c0 R08: 0000000000000004 R09: 0000000000000007 [ 58.770622][ T5069] R10: 0000000000000002 R11: 0000000000000000 R12: ffff88801c250718 [ 58.778596][ T5069] R13: 0000000000000008 R14: 0000000000000002 R15: 0000000000000000 [ 58.786582][ T5069] ? c_start+0x1da/0x250 [ 58.790844][ T5069] ? c_start+0x1da/0x250 [ 58.795102][ T5069] seq_read_iter+0x2ca/0x12d0 [ 58.800518][ T5069] proc_reg_read_iter+0x115/0x2d0 [ 58.805555][ T5069] vfs_read+0x681/0x930 [ 58.809724][ T5069] ? kernel_read+0x1c0/0x1c0 [ 58.814328][ T5069] ? __mutex_unlock_slowpath+0x157/0x5e0 [ 58.819979][ T5069] ? __fget_files+0x26a/0x480 [ 58.824688][ T5069] ksys_read+0x12b/0x250 [ 58.828937][ T5069] ? vfs_write+0xe10/0xe10 [ 58.833358][ T5069] ? syscall_enter_from_user_mode+0x26/0xb0 [ 58.839288][ T5069] do_syscall_64+0x39/0xb0 [ 58.843732][ T5069] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 58.849663][ T5069] RIP: 0033:0x403ace [ 58.853571][ T5069] Code: 48 89 6c 24 38 48 8d 6c 24 38 e8 0d 00 00 00 48 8b 6c 24 38 48 83 c4 40 c3 cc cc cc 49 89 f2 48 89 fa 48 89 ce 48 89 df 0f 05 <48> 3d 01 f0 ff ff 76 15 48 f7 d8 48 89 c1 48 c7 c0 ff ff ff ff 48 [ 58.873220][ T5069] RSP: 002b:000000c000bfb308 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 [ 58.881644][ T5069] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000403ace [ 58.889626][ T5069] RDX: 0000000000001000 RSI: 000000c000506000 RDI: 0000000000000003 [ 58.897602][ T5069] RBP: 000000c000bfb348 R08: 0000000000000000 R09: 0000000000000000 [ 58.905578][ T5069] R10: 0000000000000000 R11: 0000000000000202 R12: 000000c000bfb488 [ 58.913553][ T5069] R13: 0000000000000000 R14: 000000c0000061a0 R15: 1000000000000000 [ 58.921545][ T5069] </TASK> [ 58.924825][ T5069] Kernel Offset: disabled [ 58.929270][ T5069] Rebooting in 86400 seconds..