Warning: Permanently added '10.128.1.77' (ECDSA) to the list of known hosts. 2023/03/27 06:26:14 fuzzer started syzkaller login: [ 29.038712][ T2455] ------------[ cut here ]------------ [ 29.039629][ T2455] WARNING: CPU: 0 PID: 2455 at include/linux/cpumask.h:143 c_start+0x1da/0x250 [ 29.040887][ T2455] Modules linked in: [ 29.041597][ T2455] CPU: 0 PID: 2455 Comm: syz-fuzzer Not tainted 6.3.0-rc1-syzkaller-00083-g2b947f8769be #0 [ 29.043046][ T2455] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 29.044508][ T2455] RIP: 0010:c_start+0x1da/0x250 [ 29.045237][ T2455] Code: 58 55 87 e8 18 09 3e 00 4c 89 e0 5b 5d 41 5c 41 5d 41 5e c3 f3 48 0f bc db e8 02 09 3e 00 89 db e9 38 ff ff ff e8 f6 08 3e 00 <0f> 0b e9 c1 fe ff ff 48 c7 c7 c0 bc e1 88 e8 b3 9e 72 00 e9 67 ff [ 29.047938][ T2455] RSP: 0018:ffffc900014d7c68 EFLAGS: 00010293 [ 29.048858][ T2455] RAX: 0000000000000000 RBX: 0000000000000007 RCX: 0000000000000000 [ 29.049951][ T2455] RDX: ffff888110859c00 RSI: ffffffff810cf5aa RDI: 0000000000000004 [ 29.051035][ T2455] RBP: ffffffff88e1bcc0 R08: 0000000000000004 R09: 0000000000000007 [ 29.052107][ T2455] R10: 0000000000000002 R11: 0000000000000000 R12: ffff88810e164968 [ 29.053181][ T2455] R13: 0000000000000008 R14: 0000000000000002 R15: 0000000000000000 [ 29.054255][ T2455] FS: 000000c0001d1c90(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 [ 29.055488][ T2455] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.056390][ T2455] CR2: 0000000000d9de43 CR3: 000000011db53000 CR4: 00000000003506f0 [ 29.057470][ T2455] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.058547][ T2455] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.059683][ T2455] Call Trace: [ 29.062974][ T2455] [ 29.065905][ T2455] seq_read_iter+0x2ca/0x12d0 [ 29.070669][ T2455] proc_reg_read_iter+0x115/0x2d0 [ 29.075715][ T2455] vfs_read+0x681/0x930 [ 29.079923][ T2455] ? kernel_read+0x1c0/0x1c0 [ 29.084535][ T2455] ? __mutex_unlock_slowpath+0x157/0x5e0 [ 29.090249][ T2455] ? __fget_files+0x26a/0x480 [ 29.094950][ T2455] ksys_read+0x12b/0x250 [ 29.099247][ T2455] ? vfs_write+0xe10/0xe10 [ 29.103687][ T2455] ? syscall_enter_from_user_mode+0x26/0xb0 [ 29.109640][ T2455] do_syscall_64+0x39/0xb0 [ 29.114071][ T2455] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 29.120048][ T2455] RIP: 0033:0x403ace [ 29.124042][ T2455] 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 [ 29.143709][ T2455] RSP: 002b:000000c000c8f308 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 [ 29.152163][ T2455] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000403ace [ 29.160177][ T2455] RDX: 0000000000001000 RSI: 000000c000340000 RDI: 0000000000000003 [ 29.168171][ T2455] RBP: 000000c000c8f348 R08: 0000000000000000 R09: 0000000000000000 [ 29.176187][ T2455] R10: 0000000000000000 R11: 0000000000000202 R12: 000000c000c8f488 [ 29.184218][ T2455] R13: 0000000000000000 R14: 000000c0000061a0 R15: 0000000000000001 [ 29.192257][ T2455] [ 29.195286][ T2455] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 29.202724][ T2455] CPU: 0 PID: 2455 Comm: syz-fuzzer Not tainted 6.3.0-rc1-syzkaller-00083-g2b947f8769be #0 [ 29.212686][ T2455] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 29.222752][ T2455] Call Trace: [ 29.226804][ T2455] [ 29.229846][ T2455] dump_stack_lvl+0xd9/0x150 [ 29.234437][ T2455] panic+0x688/0x730 [ 29.238320][ T2455] ? panic_smp_self_stop+0x90/0x90 [ 29.243419][ T2455] ? show_trace_log_lvl+0x285/0x390 [ 29.248617][ T2455] ? c_start+0x1da/0x250 [ 29.252873][ T2455] check_panic_on_warn+0xb1/0xc0 [ 29.257803][ T2455] __warn+0xf2/0x4f0 [ 29.261694][ T2455] ? c_start+0x1da/0x250 [ 29.265943][ T2455] report_bug+0x2da/0x500 [ 29.270273][ T2455] handle_bug+0x3c/0x70 [ 29.274441][ T2455] exc_invalid_op+0x18/0x50 [ 29.278934][ T2455] asm_exc_invalid_op+0x1a/0x20 [ 29.283778][ T2455] RIP: 0010:c_start+0x1da/0x250 [ 29.288625][ T2455] Code: 58 55 87 e8 18 09 3e 00 4c 89 e0 5b 5d 41 5c 41 5d 41 5e c3 f3 48 0f bc db e8 02 09 3e 00 89 db e9 38 ff ff ff e8 f6 08 3e 00 <0f> 0b e9 c1 fe ff ff 48 c7 c7 c0 bc e1 88 e8 b3 9e 72 00 e9 67 ff [ 29.308225][ T2455] RSP: 0018:ffffc900014d7c68 EFLAGS: 00010293 [ 29.314305][ T2455] RAX: 0000000000000000 RBX: 0000000000000007 RCX: 0000000000000000 [ 29.322271][ T2455] RDX: ffff888110859c00 RSI: ffffffff810cf5aa RDI: 0000000000000004 [ 29.330230][ T2455] RBP: ffffffff88e1bcc0 R08: 0000000000000004 R09: 0000000000000007 [ 29.338194][ T2455] R10: 0000000000000002 R11: 0000000000000000 R12: ffff88810e164968 [ 29.346154][ T2455] R13: 0000000000000008 R14: 0000000000000002 R15: 0000000000000000 [ 29.354638][ T2455] ? c_start+0x1da/0x250 [ 29.358882][ T2455] ? c_start+0x1da/0x250 [ 29.363134][ T2455] seq_read_iter+0x2ca/0x12d0 [ 29.367925][ T2455] proc_reg_read_iter+0x115/0x2d0 [ 29.372959][ T2455] vfs_read+0x681/0x930 [ 29.377112][ T2455] ? kernel_read+0x1c0/0x1c0 [ 29.381697][ T2455] ? __mutex_unlock_slowpath+0x157/0x5e0 [ 29.387333][ T2455] ? __fget_files+0x26a/0x480 [ 29.392004][ T2455] ksys_read+0x12b/0x250 [ 29.396237][ T2455] ? vfs_write+0xe10/0xe10 [ 29.400645][ T2455] ? syscall_enter_from_user_mode+0x26/0xb0 [ 29.406533][ T2455] do_syscall_64+0x39/0xb0 [ 29.410944][ T2455] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 29.416831][ T2455] RIP: 0033:0x403ace [ 29.420735][ T2455] 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 [ 29.440332][ T2455] RSP: 002b:000000c000c8f308 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 [ 29.448739][ T2455] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000403ace [ 29.456723][ T2455] RDX: 0000000000001000 RSI: 000000c000340000 RDI: 0000000000000003 [ 29.464686][ T2455] RBP: 000000c000c8f348 R08: 0000000000000000 R09: 0000000000000000 [ 29.472646][ T2455] R10: 0000000000000000 R11: 0000000000000202 R12: 000000c000c8f488 [ 29.480606][ T2455] R13: 0000000000000000 R14: 000000c0000061a0 R15: 0000000000000001 [ 29.488568][ T2455] [ 29.491651][ T2455] Kernel Offset: disabled [ 29.496018][ T2455] Rebooting in 86400 seconds..