Warning: Permanently added '10.128.0.225' (ECDSA) to the list of known hosts. 2023/03/27 06:29:59 fuzzer started syzkaller login: [ 31.418114][ T2455] ------------[ cut here ]------------ [ 31.424092][ T2455] WARNING: CPU: 0 PID: 2455 at include/linux/cpumask.h:143 c_start+0x1da/0x250 [ 31.433136][ T2455] Modules linked in: [ 31.437058][ T2455] CPU: 0 PID: 2455 Comm: syz-fuzzer Not tainted 6.3.0-rc1-syzkaller-00083-g2b947f8769be #0 [ 31.447114][ T2455] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 31.457224][ T2455] RIP: 0010:c_start+0x1da/0x250 [ 31.462197][ 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 [ 31.481950][ T2455] RSP: 0018:ffffc90000527c68 EFLAGS: 00010293 [ 31.488021][ T2455] RAX: 0000000000000000 RBX: 0000000000000007 RCX: 0000000000000000 [ 31.496047][ T2455] RDX: ffff88810f609c00 RSI: ffffffff810cf5aa RDI: 0000000000000004 [ 31.504073][ T2455] RBP: ffffffff88e1bcc0 R08: 0000000000000004 R09: 0000000000000007 [ 31.512095][ T2455] R10: 0000000000000002 R11: 0000000000000000 R12: ffff88810f14b718 [ 31.520140][ T2455] R13: 0000000000000008 R14: 0000000000000002 R15: 0000000000000000 [ 31.528124][ T2455] FS: 000000c0001d9c90(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 [ 31.537110][ T2455] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 31.543753][ T2455] CR2: 00007febf62a3480 CR3: 000000011f5fd000 CR4: 00000000003506f0 [ 31.551775][ T2455] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 31.559765][ T2455] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 31.567878][ T2455] Call Trace: [ 31.571194][ T2455] [ 31.574139][ T2455] seq_read_iter+0x2ca/0x12d0 [ 31.578854][ T2455] proc_reg_read_iter+0x115/0x2d0 [ 31.583937][ T2455] vfs_read+0x681/0x930 [ 31.588138][ T2455] ? kernel_read+0x1c0/0x1c0 [ 31.592807][ T2455] ? __fget_files+0x26a/0x480 [ 31.597519][ T2455] ksys_read+0x12b/0x250 [ 31.601833][ T2455] ? vfs_write+0xe10/0xe10 [ 31.606308][ T2455] ? syscall_enter_from_user_mode+0x26/0xb0 [ 31.612261][ T2455] do_syscall_64+0x39/0xb0 [ 31.616698][ T2455] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 31.622646][ T2455] RIP: 0033:0x403ace [ 31.626555][ 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 [ 31.646219][ T2455] RSP: 002b:000000c000b57308 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 [ 31.654735][ T2455] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000403ace [ 31.662766][ T2455] RDX: 0000000000001000 RSI: 000000c000328000 RDI: 0000000000000003 [ 31.670807][ T2455] RBP: 000000c000b57348 R08: 0000000000000000 R09: 0000000000000000 [ 31.678876][ T2455] R10: 0000000000000000 R11: 0000000000000202 R12: 000000c000b57488 [ 31.686905][ T2455] R13: 0000000000000000 R14: 000000c0000061a0 R15: 0000000000000001 [ 31.694977][ T2455] [ 31.698023][ T2455] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 31.705374][ T2455] CPU: 0 PID: 2455 Comm: syz-fuzzer Not tainted 6.3.0-rc1-syzkaller-00083-g2b947f8769be #0 [ 31.715343][ T2455] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 31.725393][ T2455] Call Trace: [ 31.728664][ T2455] [ 31.731614][ T2455] dump_stack_lvl+0xd9/0x150 [ 31.736232][ T2455] panic+0x688/0x730 [ 31.740132][ T2455] ? panic_smp_self_stop+0x90/0x90 [ 31.745257][ T2455] ? show_trace_log_lvl+0x285/0x390 [ 31.750489][ T2455] ? c_start+0x1da/0x250 [ 31.754891][ T2455] check_panic_on_warn+0xb1/0xc0 [ 31.759824][ T2455] __warn+0xf2/0x4f0 [ 31.763713][ T2455] ? c_start+0x1da/0x250 [ 31.767951][ T2455] report_bug+0x2da/0x500 [ 31.772312][ T2455] handle_bug+0x3c/0x70 [ 31.776460][ T2455] exc_invalid_op+0x18/0x50 [ 31.780955][ T2455] asm_exc_invalid_op+0x1a/0x20 [ 31.785801][ T2455] RIP: 0010:c_start+0x1da/0x250 [ 31.790651][ 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 [ 31.810255][ T2455] RSP: 0018:ffffc90000527c68 EFLAGS: 00010293 [ 31.816338][ T2455] RAX: 0000000000000000 RBX: 0000000000000007 RCX: 0000000000000000 [ 31.824309][ T2455] RDX: ffff88810f609c00 RSI: ffffffff810cf5aa RDI: 0000000000000004 [ 31.832273][ T2455] RBP: ffffffff88e1bcc0 R08: 0000000000000004 R09: 0000000000000007 [ 31.840236][ T2455] R10: 0000000000000002 R11: 0000000000000000 R12: ffff88810f14b718 [ 31.848202][ T2455] R13: 0000000000000008 R14: 0000000000000002 R15: 0000000000000000 [ 31.856169][ T2455] ? c_start+0x1da/0x250 [ 31.860413][ T2455] ? c_start+0x1da/0x250 [ 31.864657][ T2455] seq_read_iter+0x2ca/0x12d0 [ 31.869351][ T2455] proc_reg_read_iter+0x115/0x2d0 [ 31.874378][ T2455] vfs_read+0x681/0x930 [ 31.878547][ T2455] ? kernel_read+0x1c0/0x1c0 [ 31.883138][ T2455] ? __fget_files+0x26a/0x480 [ 31.887824][ T2455] ksys_read+0x12b/0x250 [ 31.892064][ T2455] ? vfs_write+0xe10/0xe10 [ 31.896476][ T2455] ? syscall_enter_from_user_mode+0x26/0xb0 [ 31.902373][ T2455] do_syscall_64+0x39/0xb0 [ 31.906801][ T2455] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 31.912690][ T2455] RIP: 0033:0x403ace [ 31.916577][ 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 [ 31.936265][ T2455] RSP: 002b:000000c000b57308 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 [ 31.944691][ T2455] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000403ace [ 31.952660][ T2455] RDX: 0000000000001000 RSI: 000000c000328000 RDI: 0000000000000003 [ 31.960643][ T2455] RBP: 000000c000b57348 R08: 0000000000000000 R09: 0000000000000000 [ 31.968608][ T2455] R10: 0000000000000000 R11: 0000000000000202 R12: 000000c000b57488 [ 31.976589][ T2455] R13: 0000000000000000 R14: 000000c0000061a0 R15: 0000000000000001 [ 31.984554][ T2455] [ 31.987772][ T2455] Kernel Offset: disabled [ 31.992142][ T2455] Rebooting in 86400 seconds..