Warning: Permanently added '10.128.1.146' (ECDSA) to the list of known hosts. 2023/03/27 06:22:18 fuzzer started syzkaller login: [ 30.152627][ T2452] ------------[ cut here ]------------ [ 30.158374][ T2452] WARNING: CPU: 1 PID: 2452 at include/linux/cpumask.h:143 c_start+0x1da/0x250 [ 30.167633][ T2452] Modules linked in: [ 30.171572][ T2452] CPU: 1 PID: 2452 Comm: syz-fuzzer Not tainted 6.3.0-rc1-syzkaller-00083-g2b947f8769be #0 [ 30.181588][ T2452] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 30.191709][ T2452] RIP: 0010:c_start+0x1da/0x250 [ 30.196567][ T2452] 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 [ 30.216224][ T2452] RSP: 0018:ffffc900014e7c68 EFLAGS: 00010293 [ 30.222356][ T2452] RAX: 0000000000000000 RBX: 0000000000000007 RCX: 0000000000000000 [ 30.230374][ T2452] RDX: ffff88810e811c00 RSI: ffffffff810cf5aa RDI: 0000000000000004 [ 30.238363][ T2452] RBP: ffffffff88e1bcc0 R08: 0000000000000004 R09: 0000000000000007 [ 30.246383][ T2452] R10: 0000000000000002 R11: 0000000000000000 R12: ffff88810e356150 [ 30.254396][ T2452] R13: 0000000000000008 R14: 0000000000000002 R15: 0000000000000000 [ 30.262430][ T2452] FS: 0000000001ec6270(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 [ 30.271426][ T2452] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 30.278014][ T2452] CR2: 0000000000d9de43 CR3: 000000010fa1c000 CR4: 00000000003506e0 [ 30.286037][ T2452] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.294050][ T2452] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.302232][ T2452] Call Trace: [ 30.305519][ T2452] [ 30.308443][ T2452] seq_read_iter+0x2ca/0x12d0 [ 30.313203][ T2452] proc_reg_read_iter+0x115/0x2d0 [ 30.318262][ T2452] vfs_read+0x681/0x930 [ 30.322478][ T2452] ? kernel_read+0x1c0/0x1c0 [ 30.327090][ T2452] ? __fget_files+0x26a/0x480 [ 30.331826][ T2452] ksys_read+0x12b/0x250 [ 30.336101][ T2452] ? vfs_write+0xe10/0xe10 [ 30.340573][ T2452] ? syscall_enter_from_user_mode+0x26/0xb0 [ 30.346494][ T2452] do_syscall_64+0x39/0xb0 [ 30.350961][ T2452] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 30.356875][ T2452] RIP: 0033:0x403ace [ 30.360813][ T2452] 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 [ 30.380503][ T2452] RSP: 002b:000000c000c19308 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 [ 30.388920][ T2452] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000403ace [ 30.396945][ T2452] RDX: 0000000000001000 RSI: 000000c000506000 RDI: 0000000000000003 [ 30.404997][ T2452] RBP: 000000c000c19348 R08: 0000000000000000 R09: 0000000000000000 [ 30.413015][ T2452] R10: 0000000000000000 R11: 0000000000000202 R12: 000000c000c19488 [ 30.421048][ T2452] R13: 0000000000000000 R14: 000000c0000061a0 R15: 0040000000000000 [ 30.429016][ T2452] [ 30.432078][ T2452] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 30.439367][ T2452] CPU: 1 PID: 2452 Comm: syz-fuzzer Not tainted 6.3.0-rc1-syzkaller-00083-g2b947f8769be #0 [ 30.449336][ T2452] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 30.459384][ T2452] Call Trace: [ 30.462655][ T2452] [ 30.465583][ T2452] dump_stack_lvl+0xd9/0x150 [ 30.470176][ T2452] panic+0x688/0x730 [ 30.474063][ T2452] ? panic_smp_self_stop+0x90/0x90 [ 30.479166][ T2452] ? show_trace_log_lvl+0x285/0x390 [ 30.484365][ T2452] ? c_start+0x1da/0x250 [ 30.488619][ T2452] check_panic_on_warn+0xb1/0xc0 [ 30.493551][ T2452] __warn+0xf2/0x4f0 [ 30.497439][ T2452] ? c_start+0x1da/0x250 [ 30.501677][ T2452] report_bug+0x2da/0x500 [ 30.506003][ T2452] handle_bug+0x3c/0x70 [ 30.510152][ T2452] exc_invalid_op+0x18/0x50 [ 30.514647][ T2452] asm_exc_invalid_op+0x1a/0x20 [ 30.519492][ T2452] RIP: 0010:c_start+0x1da/0x250 [ 30.524342][ T2452] 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 [ 30.543945][ T2452] RSP: 0018:ffffc900014e7c68 EFLAGS: 00010293 [ 30.550027][ T2452] RAX: 0000000000000000 RBX: 0000000000000007 RCX: 0000000000000000 [ 30.558001][ T2452] RDX: ffff88810e811c00 RSI: ffffffff810cf5aa RDI: 0000000000000004 [ 30.565974][ T2452] RBP: ffffffff88e1bcc0 R08: 0000000000000004 R09: 0000000000000007 [ 30.573946][ T2452] R10: 0000000000000002 R11: 0000000000000000 R12: ffff88810e356150 [ 30.581918][ T2452] R13: 0000000000000008 R14: 0000000000000002 R15: 0000000000000000 [ 30.589884][ T2452] ? c_start+0x1da/0x250 [ 30.594129][ T2452] ? c_start+0x1da/0x250 [ 30.598372][ T2452] seq_read_iter+0x2ca/0x12d0 [ 30.603067][ T2452] proc_reg_read_iter+0x115/0x2d0 [ 30.608082][ T2452] vfs_read+0x681/0x930 [ 30.612244][ T2452] ? kernel_read+0x1c0/0x1c0 [ 30.616822][ T2452] ? __fget_files+0x26a/0x480 [ 30.621491][ T2452] ksys_read+0x12b/0x250 [ 30.625724][ T2452] ? vfs_write+0xe10/0xe10 [ 30.630129][ T2452] ? syscall_enter_from_user_mode+0x26/0xb0 [ 30.636020][ T2452] do_syscall_64+0x39/0xb0 [ 30.640428][ T2452] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 30.646316][ T2452] RIP: 0033:0x403ace [ 30.650211][ T2452] 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 [ 30.669809][ T2452] RSP: 002b:000000c000c19308 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 [ 30.678225][ T2452] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000403ace [ 30.686204][ T2452] RDX: 0000000000001000 RSI: 000000c000506000 RDI: 0000000000000003 [ 30.694177][ T2452] RBP: 000000c000c19348 R08: 0000000000000000 R09: 0000000000000000 [ 30.702166][ T2452] R10: 0000000000000000 R11: 0000000000000202 R12: 000000c000c19488 [ 30.710582][ T2452] R13: 0000000000000000 R14: 000000c0000061a0 R15: 0040000000000000 [ 30.718553][ T2452] [ 30.721725][ T2452] Kernel Offset: disabled [ 30.726104][ T2452] Rebooting in 86400 seconds..