Warning: Permanently added '10.128.0.216' (ECDSA) to the list of known hosts. 2023/03/27 07:35:50 fuzzer started syzkaller login: [ 36.327867][ T2451] ------------[ cut here ]------------ [ 36.328828][ T2451] WARNING: CPU: 0 PID: 2451 at include/linux/cpumask.h:143 c_start+0x1da/0x250 [ 36.330212][ T2451] Modules linked in: [ 36.330792][ T2451] CPU: 0 PID: 2451 Comm: syz-fuzzer Not tainted 6.3.0-rc1-syzkaller-00083-g2b947f8769be #0 [ 36.332152][ T2451] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 36.333593][ T2451] RIP: 0010:c_start+0x1da/0x250 [ 36.334424][ 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 [ 36.337100][ T2451] RSP: 0018:ffffc90000577c68 EFLAGS: 00010293 [ 36.337939][ T2451] RAX: 0000000000000000 RBX: 0000000000000007 RCX: 0000000000000000 [ 36.339012][ T2451] RDX: ffff88810c038000 RSI: ffffffff810cf5aa RDI: 0000000000000004 [ 36.340088][ T2451] RBP: ffffffff88e1bcc0 R08: 0000000000000004 R09: 0000000000000007 [ 36.341232][ T2451] R10: 0000000000000002 R11: 0000000000000000 R12: ffff88810fbba5f0 [ 36.342318][ T2451] R13: 0000000000000008 R14: 0000000000000002 R15: 0000000000000000 [ 36.343589][ T2451] FS: 0000000001ec6270(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 [ 36.344941][ T2451] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.345919][ T2451] CR2: 0000000000d9de43 CR3: 000000011146b000 CR4: 00000000003506f0 [ 36.346997][ T2451] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.348107][ T2451] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.356374][ T2451] Call Trace: [ 36.359651][ T2451] [ 36.362578][ T2451] seq_read_iter+0x2ca/0x12d0 [ 36.367363][ T2451] proc_reg_read_iter+0x115/0x2d0 [ 36.372418][ T2451] vfs_read+0x681/0x930 [ 36.376628][ T2451] ? kernel_read+0x1c0/0x1c0 [ 36.381236][ T2451] ? __mutex_unlock_slowpath+0x157/0x5e0 [ 36.386945][ T2451] ? __fget_files+0x26a/0x480 [ 36.391634][ T2451] ksys_read+0x12b/0x250 [ 36.395936][ T2451] ? vfs_write+0xe10/0xe10 [ 36.400384][ T2451] ? syscall_enter_from_user_mode+0x26/0xb0 [ 36.406343][ T2451] do_syscall_64+0x39/0xb0 [ 36.410789][ T2451] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 36.416767][ T2451] RIP: 0033:0x403ace [ 36.420682][ 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 [ 36.440363][ T2451] RSP: 002b:000000c000c4b308 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 [ 36.448883][ T2451] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000403ace [ 36.457087][ T2451] RDX: 0000000000001000 RSI: 000000c000430000 RDI: 0000000000000003 [ 36.465219][ T2451] RBP: 000000c000c4b348 R08: 0000000000000000 R09: 0000000000000000 [ 36.473260][ T2451] R10: 0000000000000000 R11: 0000000000000202 R12: 000000c000c4b488 [ 36.481263][ T2451] R13: 0000000000000000 R14: 000000c0000061a0 R15: 0000000000000001 [ 36.489303][ T2451] [ 36.492344][ T2451] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 36.499632][ T2451] CPU: 0 PID: 2451 Comm: syz-fuzzer Not tainted 6.3.0-rc1-syzkaller-00083-g2b947f8769be #0 [ 36.509695][ T2451] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 36.519745][ T2451] Call Trace: [ 36.523023][ T2451] [ 36.525948][ T2451] dump_stack_lvl+0xd9/0x150 [ 36.530558][ T2451] panic+0x688/0x730 [ 36.534446][ T2451] ? panic_smp_self_stop+0x90/0x90 [ 36.539551][ T2451] ? show_trace_log_lvl+0x285/0x390 [ 36.544754][ T2451] ? c_start+0x1da/0x250 [ 36.548999][ T2451] check_panic_on_warn+0xb1/0xc0 [ 36.553953][ T2451] __warn+0xf2/0x4f0 [ 36.557844][ T2451] ? c_start+0x1da/0x250 [ 36.562101][ T2451] report_bug+0x2da/0x500 [ 36.566429][ T2451] handle_bug+0x3c/0x70 [ 36.570596][ T2451] exc_invalid_op+0x18/0x50 [ 36.575093][ T2451] asm_exc_invalid_op+0x1a/0x20 [ 36.579939][ T2451] RIP: 0010:c_start+0x1da/0x250 [ 36.584787][ 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 [ 36.604417][ T2451] RSP: 0018:ffffc90000577c68 EFLAGS: 00010293 [ 36.610502][ T2451] RAX: 0000000000000000 RBX: 0000000000000007 RCX: 0000000000000000 [ 36.618479][ T2451] RDX: ffff88810c038000 RSI: ffffffff810cf5aa RDI: 0000000000000004 [ 36.626464][ T2451] RBP: ffffffff88e1bcc0 R08: 0000000000000004 R09: 0000000000000007 [ 36.634435][ T2451] R10: 0000000000000002 R11: 0000000000000000 R12: ffff88810fbba5f0 [ 36.642399][ T2451] R13: 0000000000000008 R14: 0000000000000002 R15: 0000000000000000 [ 36.650369][ T2451] ? c_start+0x1da/0x250 [ 36.654616][ T2451] ? c_start+0x1da/0x250 [ 36.658876][ T2451] seq_read_iter+0x2ca/0x12d0 [ 36.663567][ T2451] proc_reg_read_iter+0x115/0x2d0 [ 36.668596][ T2451] vfs_read+0x681/0x930 [ 36.672748][ T2451] ? kernel_read+0x1c0/0x1c0 [ 36.677329][ T2451] ? __mutex_unlock_slowpath+0x157/0x5e0 [ 36.682970][ T2451] ? __fget_files+0x26a/0x480 [ 36.687657][ T2451] ksys_read+0x12b/0x250 [ 36.691908][ T2451] ? vfs_write+0xe10/0xe10 [ 36.696336][ T2451] ? syscall_enter_from_user_mode+0x26/0xb0 [ 36.702229][ T2451] do_syscall_64+0x39/0xb0 [ 36.706643][ T2451] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 36.712620][ T2451] RIP: 0033:0x403ace [ 36.716503][ 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 [ 36.736160][ T2451] RSP: 002b:000000c000c4b308 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 [ 36.744586][ T2451] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000403ace [ 36.752568][ T2451] RDX: 0000000000001000 RSI: 000000c000430000 RDI: 0000000000000003 [ 36.760555][ T2451] RBP: 000000c000c4b348 R08: 0000000000000000 R09: 0000000000000000 [ 36.768529][ T2451] R10: 0000000000000000 R11: 0000000000000202 R12: 000000c000c4b488 [ 36.776492][ T2451] R13: 0000000000000000 R14: 000000c0000061a0 R15: 0000000000000001 [ 36.784456][ T2451] [ 36.787643][ T2451] Kernel Offset: disabled [ 36.792016][ T2451] Rebooting in 86400 seconds..