dhcpcd-9.4.0 starting dev: loaded udev DUID 00:04:28:fc:25:ea:d7:72:11:85:ec:f5:a4:60:37:c9:76:43 forked to background, child pid 2386 Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.62' (ECDSA) to the list of known hosts. 2023/03/27 07:24:06 fuzzer started syzkaller login: [ 29.394243][ T2451] ------------[ cut here ]------------ [ 29.395163][ T2451] WARNING: CPU: 0 PID: 2451 at include/linux/cpumask.h:143 c_start+0x1da/0x250 [ 29.396421][ T2451] Modules linked in: [ 29.396996][ T2451] CPU: 0 PID: 2451 Comm: syz-fuzzer Not tainted 6.3.0-rc1-syzkaller-00083-g2b947f8769be #0 [ 29.398331][ T2451] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 29.399738][ T2451] RIP: 0010:c_start+0x1da/0x250 [ 29.400424][ T2451] 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 [ 29.403058][ T2451] RSP: 0018:ffffc90001467c68 EFLAGS: 00010293 [ 29.403931][ T2451] RAX: 0000000000000000 RBX: 0000000000000007 RCX: 0000000000000000 [ 29.405092][ T2451] RDX: ffff888115383800 RSI: ffffffff810cf5aa RDI: 0000000000000004 [ 29.406347][ T2451] RBP: ffffffff88e1bcc0 R08: 0000000000000004 R09: 0000000000000007 [ 29.407496][ T2451] R10: 0000000000000002 R11: 0000000000000000 R12: ffff88810c2c7a90 [ 29.408615][ T2451] R13: 0000000000000008 R14: 0000000000000002 R15: 0000000000000000 [ 29.409726][ T2451] FS: 0000000001ec6270(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 [ 29.410930][ T2451] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.411834][ T2451] CR2: 0000000000d9de43 CR3: 000000010e2bc000 CR4: 00000000003506f0 [ 29.412911][ T2451] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.413996][ T2451] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.416193][ T2451] Call Trace: [ 29.419500][ T2451] [ 29.422443][ T2451] seq_read_iter+0x2ca/0x12d0 [ 29.427175][ T2451] proc_reg_read_iter+0x115/0x2d0 [ 29.432216][ T2451] vfs_read+0x681/0x930 [ 29.436403][ T2451] ? kernel_read+0x1c0/0x1c0 [ 29.440990][ T2451] ? __fget_files+0x26a/0x480 [ 29.445737][ T2451] ksys_read+0x12b/0x250 [ 29.450001][ T2451] ? vfs_write+0xe10/0xe10 [ 29.454428][ T2451] ? syscall_enter_from_user_mode+0x26/0xb0 [ 29.460369][ T2451] do_syscall_64+0x39/0xb0 [ 29.464853][ T2451] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 29.470745][ T2451] RIP: 0033:0x403ace [ 29.474631][ T2451] 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 [ 29.494305][ T2451] RSP: 002b:000000c0004df308 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 [ 29.502788][ T2451] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000403ace [ 29.510793][ T2451] RDX: 0000000000001000 RSI: 000000c00042c000 RDI: 0000000000000003 [ 29.518811][ T2451] RBP: 000000c0004df348 R08: 0000000000000000 R09: 0000000000000000 [ 29.527073][ T2451] R10: 0000000000000000 R11: 0000000000000202 R12: 000000c0004df488 [ 29.535089][ T2451] R13: 0000000000000000 R14: 000000c0000061a0 R15: 0100000000000000 [ 29.543078][ T2451] [ 29.546142][ T2451] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 29.553423][ T2451] CPU: 0 PID: 2451 Comm: syz-fuzzer Not tainted 6.3.0-rc1-syzkaller-00083-g2b947f8769be #0 [ 29.563388][ T2451] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 29.573434][ T2451] Call Trace: [ 29.576703][ T2451] [ 29.579639][ T2451] dump_stack_lvl+0xd9/0x150 [ 29.584234][ T2451] panic+0x688/0x730 [ 29.588121][ T2451] ? panic_smp_self_stop+0x90/0x90 [ 29.593243][ T2451] ? show_trace_log_lvl+0x285/0x390 [ 29.598441][ T2451] ? c_start+0x1da/0x250 [ 29.602677][ T2451] check_panic_on_warn+0xb1/0xc0 [ 29.607621][ T2451] __warn+0xf2/0x4f0 [ 29.611548][ T2451] ? c_start+0x1da/0x250 [ 29.615819][ T2451] report_bug+0x2da/0x500 [ 29.620147][ T2451] handle_bug+0x3c/0x70 [ 29.624294][ T2451] exc_invalid_op+0x18/0x50 [ 29.628789][ T2451] asm_exc_invalid_op+0x1a/0x20 [ 29.633634][ T2451] RIP: 0010:c_start+0x1da/0x250 [ 29.638483][ T2451] 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 [ 29.658083][ T2451] RSP: 0018:ffffc90001467c68 EFLAGS: 00010293 [ 29.664158][ T2451] RAX: 0000000000000000 RBX: 0000000000000007 RCX: 0000000000000000 [ 29.672117][ T2451] RDX: ffff888115383800 RSI: ffffffff810cf5aa RDI: 0000000000000004 [ 29.680165][ T2451] RBP: ffffffff88e1bcc0 R08: 0000000000000004 R09: 0000000000000007 [ 29.688126][ T2451] R10: 0000000000000002 R11: 0000000000000000 R12: ffff88810c2c7a90 [ 29.696087][ T2451] R13: 0000000000000008 R14: 0000000000000002 R15: 0000000000000000 [ 29.704069][ T2451] ? c_start+0x1da/0x250 [ 29.708317][ T2451] ? c_start+0x1da/0x250 [ 29.712563][ T2451] seq_read_iter+0x2ca/0x12d0 [ 29.717240][ T2451] proc_reg_read_iter+0x115/0x2d0 [ 29.722256][ T2451] vfs_read+0x681/0x930 [ 29.726414][ T2451] ? kernel_read+0x1c0/0x1c0 [ 29.731032][ T2451] ? __fget_files+0x26a/0x480 [ 29.735712][ T2451] ksys_read+0x12b/0x250 [ 29.739956][ T2451] ? vfs_write+0xe10/0xe10 [ 29.744367][ T2451] ? syscall_enter_from_user_mode+0x26/0xb0 [ 29.750261][ T2451] do_syscall_64+0x39/0xb0 [ 29.754700][ T2451] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 29.760699][ T2451] RIP: 0033:0x403ace [ 29.764612][ T2451] 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 [ 29.784216][ T2451] RSP: 002b:000000c0004df308 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 [ 29.792620][ T2451] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000403ace [ 29.800581][ T2451] RDX: 0000000000001000 RSI: 000000c00042c000 RDI: 0000000000000003 [ 29.808544][ T2451] RBP: 000000c0004df348 R08: 0000000000000000 R09: 0000000000000000 [ 29.816601][ T2451] R10: 0000000000000000 R11: 0000000000000202 R12: 000000c0004df488 [ 29.824585][ T2451] R13: 0000000000000000 R14: 000000c0000061a0 R15: 0100000000000000 [ 29.832576][ T2451] [ 29.835756][ T2451] Kernel Offset: disabled [ 29.840130][ T2451] Rebooting in 86400 seconds..