dhcpcd-9.4.0 starting dev: loaded udev DUID 00:04:38:86:54:de:e3:84:6f:42:f0:0e:4e:a9:8b:37:24:d9 forked to background, child pid 2384 Starting sshd: OK syzkaller syzkaller login: [ 26.839776][ T2442] scp (2442) used greatest stack depth: 22976 bytes left Warning: Permanently added '10.128.0.112' (ECDSA) to the list of known hosts. 2023/03/27 05:17:11 fuzzer started [ 33.459365][ T2455] ------------[ cut here ]------------ [ 33.464947][ T2455] WARNING: CPU: 0 PID: 2455 at include/linux/cpumask.h:143 c_start+0x1da/0x250 [ 33.473936][ T2455] Modules linked in: [ 33.477826][ T2455] CPU: 0 PID: 2455 Comm: syz-fuzzer Not tainted 6.3.0-rc1-syzkaller-00083-g2b947f8769be #0 [ 33.487842][ T2455] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 33.497946][ T2455] RIP: 0010:c_start+0x1da/0x250 [ 33.502860][ 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 [ 33.522545][ T2455] RSP: 0018:ffffc90000597c68 EFLAGS: 00010293 [ 33.528637][ T2455] RAX: 0000000000000000 RBX: 0000000000000007 RCX: 0000000000000000 [ 33.536682][ T2455] RDX: ffff88811b9ed400 RSI: ffffffff810cf5aa RDI: 0000000000000004 [ 33.544737][ T2455] RBP: ffffffff88e1bcc0 R08: 0000000000000004 R09: 0000000000000007 [ 33.552761][ T2455] R10: 0000000000000002 R11: 0000000000000000 R12: ffff88810c7fca90 [ 33.560792][ T2455] R13: 0000000000000008 R14: 0000000000000002 R15: 0000000000000000 [ 33.568782][ T2455] FS: 000000c0004f4890(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 [ 33.577779][ T2455] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 33.584410][ T2455] CR2: 000000c000c5d000 CR3: 0000000110837000 CR4: 00000000003506f0 [ 33.592428][ T2455] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 33.600445][ T2455] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 33.608413][ T2455] Call Trace: [ 33.611784][ T2455] [ 33.614743][ T2455] seq_read_iter+0x2ca/0x12d0 [ 33.619448][ T2455] proc_reg_read_iter+0x115/0x2d0 [ 33.624560][ T2455] vfs_read+0x681/0x930 [ 33.628739][ T2455] ? kernel_read+0x1c0/0x1c0 [ 33.633380][ T2455] ? __fget_files+0x26a/0x480 [ 33.638093][ T2455] ksys_read+0x12b/0x250 [ 33.642386][ T2455] ? vfs_write+0xe10/0xe10 [ 33.646820][ T2455] ? syscall_enter_from_user_mode+0x26/0xb0 [ 33.652761][ T2455] do_syscall_64+0x39/0xb0 [ 33.657195][ T2455] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 33.663142][ T2455] RIP: 0033:0x403ace [ 33.667049][ 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 [ 33.686734][ T2455] RSP: 002b:000000c000c31308 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 [ 33.695242][ T2455] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000403ace [ 33.703274][ T2455] RDX: 0000000000001000 RSI: 000000c0003ac000 RDI: 0000000000000003 [ 33.711307][ T2455] RBP: 000000c000c31348 R08: 0000000000000000 R09: 0000000000000000 [ 33.719285][ T2455] R10: 0000000000000000 R11: 0000000000000202 R12: 000000c000c31488 [ 33.727298][ T2455] R13: 0000000000000000 R14: 000000c0000061a0 R15: 0000000400000000 [ 33.735329][ T2455] [ 33.738354][ T2455] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 33.745618][ T2455] CPU: 0 PID: 2455 Comm: syz-fuzzer Not tainted 6.3.0-rc1-syzkaller-00083-g2b947f8769be #0 [ 33.755582][ T2455] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 33.765625][ T2455] Call Trace: [ 33.768896][ T2455] [ 33.771816][ T2455] dump_stack_lvl+0xd9/0x150 [ 33.776408][ T2455] panic+0x688/0x730 [ 33.780302][ T2455] ? panic_smp_self_stop+0x90/0x90 [ 33.785421][ T2455] ? show_trace_log_lvl+0x285/0x390 [ 33.790624][ T2455] ? c_start+0x1da/0x250 [ 33.794864][ T2455] check_panic_on_warn+0xb1/0xc0 [ 33.799802][ T2455] __warn+0xf2/0x4f0 [ 33.803690][ T2455] ? c_start+0x1da/0x250 [ 33.807946][ T2455] report_bug+0x2da/0x500 [ 33.812270][ T2455] handle_bug+0x3c/0x70 [ 33.816433][ T2455] exc_invalid_op+0x18/0x50 [ 33.820926][ T2455] asm_exc_invalid_op+0x1a/0x20 [ 33.825771][ T2455] RIP: 0010:c_start+0x1da/0x250 [ 33.830704][ 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 [ 33.850308][ T2455] RSP: 0018:ffffc90000597c68 EFLAGS: 00010293 [ 33.856369][ T2455] RAX: 0000000000000000 RBX: 0000000000000007 RCX: 0000000000000000 [ 33.864328][ T2455] RDX: ffff88811b9ed400 RSI: ffffffff810cf5aa RDI: 0000000000000004 [ 33.872292][ T2455] RBP: ffffffff88e1bcc0 R08: 0000000000000004 R09: 0000000000000007 [ 33.880443][ T2455] R10: 0000000000000002 R11: 0000000000000000 R12: ffff88810c7fca90 [ 33.888407][ T2455] R13: 0000000000000008 R14: 0000000000000002 R15: 0000000000000000 [ 33.896389][ T2455] ? c_start+0x1da/0x250 [ 33.900636][ T2455] ? c_start+0x1da/0x250 [ 33.904889][ T2455] seq_read_iter+0x2ca/0x12d0 [ 33.909568][ T2455] proc_reg_read_iter+0x115/0x2d0 [ 33.914607][ T2455] vfs_read+0x681/0x930 [ 33.918755][ T2455] ? kernel_read+0x1c0/0x1c0 [ 33.923355][ T2455] ? __fget_files+0x26a/0x480 [ 33.928026][ T2455] ksys_read+0x12b/0x250 [ 33.932260][ T2455] ? vfs_write+0xe10/0xe10 [ 33.936670][ T2455] ? syscall_enter_from_user_mode+0x26/0xb0 [ 33.942580][ T2455] do_syscall_64+0x39/0xb0 [ 33.947007][ T2455] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 33.952901][ T2455] RIP: 0033:0x403ace [ 33.956786][ 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 [ 33.976400][ T2455] RSP: 002b:000000c000c31308 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 [ 33.984807][ T2455] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000403ace [ 33.992772][ T2455] RDX: 0000000000001000 RSI: 000000c0003ac000 RDI: 0000000000000003 [ 34.000750][ T2455] RBP: 000000c000c31348 R08: 0000000000000000 R09: 0000000000000000 [ 34.008727][ T2455] R10: 0000000000000000 R11: 0000000000000202 R12: 000000c000c31488 [ 34.016690][ T2455] R13: 0000000000000000 R14: 000000c0000061a0 R15: 0000000400000000 [ 34.024656][ T2455] [ 34.027754][ T2455] Kernel Offset: disabled [ 34.032142][ T2455] Rebooting in 86400 seconds..