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 2385 Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.145' (ECDSA) to the list of known hosts. 2023/03/27 07:28:08 fuzzer started syzkaller login: [ 37.205720][ T2457] ------------[ cut here ]------------ [ 37.211287][ T2457] WARNING: CPU: 1 PID: 2457 at include/linux/cpumask.h:143 c_start+0x1da/0x250 [ 37.220436][ T2457] Modules linked in: [ 37.224373][ T2457] CPU: 1 PID: 2457 Comm: syz-fuzzer Not tainted 6.3.0-rc1-syzkaller-00083-g2b947f8769be #0 [ 37.234395][ T2457] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 37.244481][ T2457] RIP: 0010:c_start+0x1da/0x250 [ 37.249367][ T2457] 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 [ 37.269033][ T2457] RSP: 0018:ffffc90000537c68 EFLAGS: 00010293 [ 37.275132][ T2457] RAX: 0000000000000000 RBX: 0000000000000007 RCX: 0000000000000000 [ 37.283136][ T2457] RDX: ffff88811bb28000 RSI: ffffffff810cf5aa RDI: 0000000000000004 [ 37.291098][ T2457] RBP: ffffffff88e1bcc0 R08: 0000000000000004 R09: 0000000000000007 [ 37.299112][ T2457] R10: 0000000000000002 R11: 0000000000000000 R12: ffff88810dd58718 [ 37.307123][ T2457] R13: 0000000000000008 R14: 0000000000000002 R15: 0000000000000000 [ 37.315129][ T2457] FS: 000000c0001d9c90(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 [ 37.324110][ T2457] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.330687][ T2457] CR2: 000000c000ca7000 CR3: 000000010dbf2000 CR4: 00000000003506e0 [ 37.338733][ T2457] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.346749][ T2457] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.354777][ T2457] Call Trace: [ 37.358070][ T2457] [ 37.361027][ T2457] seq_read_iter+0x2ca/0x12d0 [ 37.365760][ T2457] proc_reg_read_iter+0x115/0x2d0 [ 37.370807][ T2457] vfs_read+0x681/0x930 [ 37.375029][ T2457] ? kernel_read+0x1c0/0x1c0 [ 37.379640][ T2457] ? __fget_files+0x26a/0x480 [ 37.384359][ T2457] ksys_read+0x12b/0x250 [ 37.388618][ T2457] ? vfs_write+0xe10/0xe10 [ 37.393096][ T2457] ? syscall_enter_from_user_mode+0x26/0xb0 [ 37.399111][ T2457] do_syscall_64+0x39/0xb0 [ 37.403573][ T2457] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 37.409487][ T2457] RIP: 0033:0x403ace [ 37.413427][ T2457] 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 [ 37.433098][ T2457] RSP: 002b:000000c000bff308 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 [ 37.441513][ T2457] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000403ace [ 37.449613][ T2457] RDX: 0000000000001000 RSI: 000000c00031a000 RDI: 0000000000000003 [ 37.457627][ T2457] RBP: 000000c000bff348 R08: 0000000000000000 R09: 0000000000000000 [ 37.465635][ T2457] R10: 0000000000000000 R11: 0000000000000202 R12: 000000c000bff488 [ 37.473649][ T2457] R13: 0000000000000000 R14: 000000c0000061a0 R15: 0000000000000001 [ 37.481625][ T2457] [ 37.484701][ T2457] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 37.491992][ T2457] CPU: 1 PID: 2457 Comm: syz-fuzzer Not tainted 6.3.0-rc1-syzkaller-00083-g2b947f8769be #0 [ 37.502315][ T2457] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 37.512360][ T2457] Call Trace: [ 37.515626][ T2457] [ 37.518547][ T2457] dump_stack_lvl+0xd9/0x150 [ 37.523138][ T2457] panic+0x688/0x730 [ 37.527027][ T2457] ? panic_smp_self_stop+0x90/0x90 [ 37.532129][ T2457] ? show_trace_log_lvl+0x285/0x390 [ 37.537326][ T2457] ? c_start+0x1da/0x250 [ 37.541562][ T2457] check_panic_on_warn+0xb1/0xc0 [ 37.546515][ T2457] __warn+0xf2/0x4f0 [ 37.550399][ T2457] ? c_start+0x1da/0x250 [ 37.554636][ T2457] report_bug+0x2da/0x500 [ 37.558960][ T2457] handle_bug+0x3c/0x70 [ 37.563109][ T2457] exc_invalid_op+0x18/0x50 [ 37.567606][ T2457] asm_exc_invalid_op+0x1a/0x20 [ 37.572450][ T2457] RIP: 0010:c_start+0x1da/0x250 [ 37.577294][ T2457] 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 [ 37.596891][ T2457] RSP: 0018:ffffc90000537c68 EFLAGS: 00010293 [ 37.602949][ T2457] RAX: 0000000000000000 RBX: 0000000000000007 RCX: 0000000000000000 [ 37.610912][ T2457] RDX: ffff88811bb28000 RSI: ffffffff810cf5aa RDI: 0000000000000004 [ 37.618887][ T2457] RBP: ffffffff88e1bcc0 R08: 0000000000000004 R09: 0000000000000007 [ 37.626847][ T2457] R10: 0000000000000002 R11: 0000000000000000 R12: ffff88810dd58718 [ 37.634819][ T2457] R13: 0000000000000008 R14: 0000000000000002 R15: 0000000000000000 [ 37.642784][ T2457] ? c_start+0x1da/0x250 [ 37.647028][ T2457] ? c_start+0x1da/0x250 [ 37.651267][ T2457] seq_read_iter+0x2ca/0x12d0 [ 37.655947][ T2457] proc_reg_read_iter+0x115/0x2d0 [ 37.660970][ T2457] vfs_read+0x681/0x930 [ 37.665129][ T2457] ? kernel_read+0x1c0/0x1c0 [ 37.669710][ T2457] ? __fget_files+0x26a/0x480 [ 37.674382][ T2457] ksys_read+0x12b/0x250 [ 37.678638][ T2457] ? vfs_write+0xe10/0xe10 [ 37.683045][ T2457] ? syscall_enter_from_user_mode+0x26/0xb0 [ 37.688936][ T2457] do_syscall_64+0x39/0xb0 [ 37.693349][ T2457] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 37.699239][ T2457] RIP: 0033:0x403ace [ 37.703122][ T2457] 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 [ 37.722814][ T2457] RSP: 002b:000000c000bff308 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 [ 37.731302][ T2457] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000403ace [ 37.739264][ T2457] RDX: 0000000000001000 RSI: 000000c00031a000 RDI: 0000000000000003 [ 37.747233][ T2457] RBP: 000000c000bff348 R08: 0000000000000000 R09: 0000000000000000 [ 37.755191][ T2457] R10: 0000000000000000 R11: 0000000000000202 R12: 000000c000bff488 [ 37.763153][ T2457] R13: 0000000000000000 R14: 000000c0000061a0 R15: 0000000000000001 [ 37.771113][ T2457] [ 37.774357][ T2457] Kernel Offset: disabled [ 37.778739][ T2457] Rebooting in 86400 seconds..