DUID 00:04:9a:9b:60:6a:39:26:c8:65:2f:c5:16:4d:58:03:30:c2 forked to background, child pid 3173 [ 21.905150][ T3174] 8021q: adding VLAN 0 to HW filter on device bond0 [ 21.915159][ T3174] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.103' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 42.271084][ T3498] ------------[ cut here ]------------ [ 42.276655][ T3498] WARNING: CPU: 1 PID: 3498 at block/genhd.c:589 del_gendisk+0x703/0x780 [ 42.285583][ T3498] Modules linked in: [ 42.289505][ T3498] CPU: 1 PID: 3498 Comm: syz-executor233 Not tainted 5.15.109-syzkaller #0 [ 42.298227][ T3498] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 [ 42.308324][ T3498] RIP: 0010:del_gendisk+0x703/0x780 [ 42.313567][ T3498] Code: 00 00 4c 89 f6 e8 2d 8a fa ff 4c 89 f7 be 01 00 00 00 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f 5d e9 22 16 fd ff e8 7d a9 90 fd <0f> 0b 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f 5d c3 89 e9 80 e1 07 [ 42.333214][ T3498] RSP: 0018:ffffc900024efdf0 EFLAGS: 00010293 [ 42.339309][ T3498] RAX: ffffffff83ef3503 RBX: 0000000000000240 RCX: ffff88807d893a00 [ 42.347382][ T3498] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 42.355415][ T3498] RBP: 0000000000000000 R08: ffffffff83ef2f18 R09: fffff5200049dfb9 [ 42.363435][ T3498] R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1100fa9c210 [ 42.371518][ T3498] R13: ffff88807d4e1000 R14: ffff88801e5f2ac0 R15: ffff88807d4e1080 [ 42.379635][ T3498] FS: 00005555561fa300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 42.388788][ T3498] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.395497][ T3498] CR2: 0000000020000050 CR3: 000000001983f000 CR4: 00000000003506e0 [ 42.403744][ T3498] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.412004][ T3498] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.420538][ T3498] Call Trace: [ 42.423910][ T3498] [ 42.426832][ T3498] loop_control_ioctl+0x552/0x700 [ 42.431992][ T3498] ? xor_init+0x60/0x60 [ 42.436189][ T3498] ? bpf_lsm_file_ioctl+0x5/0x10 [ 42.441203][ T3498] ? security_file_ioctl+0x7d/0xa0 [ 42.446342][ T3498] ? xor_init+0x60/0x60 [ 42.451669][ T3498] __se_sys_ioctl+0xf1/0x160 [ 42.456276][ T3498] do_syscall_64+0x3d/0xb0 [ 42.460764][ T3498] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 42.466691][ T3498] RIP: 0033:0x7f42c4ae40c9 [ 42.471343][ T3498] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 42.491189][ T3498] RSP: 002b:00007ffd12d78c28 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 42.499668][ T3498] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f42c4ae40c9 [ 42.507674][ T3498] RDX: 0000000020000000 RSI: 0000000000004c81 RDI: 0000000000000004 [ 42.515658][ T3498] RBP: 00007f42c4aa80b0 R08: 0000000000000000 R09: 0000000000000000 [ 42.523661][ T3498] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f42c4aa8140 [ 42.531669][ T3498] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 42.539766][ T3498] [ 42.542785][ T3498] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 42.550042][ T3498] CPU: 1 PID: 3498 Comm: syz-executor233 Not tainted 5.15.109-syzkaller #0 [ 42.558606][ T3498] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 [ 42.568637][ T3498] Call Trace: [ 42.571898][ T3498] [ 42.574911][ T3498] dump_stack_lvl+0x1e3/0x2cb [ 42.579664][ T3498] ? io_uring_drop_tctx_refs+0x19d/0x19d [ 42.585276][ T3498] ? panic+0x84d/0x84d [ 42.589330][ T3498] ? del_gendisk+0x700/0x780 [ 42.593918][ T3498] ? del_gendisk+0x700/0x780 [ 42.598486][ T3498] panic+0x318/0x84d [ 42.602365][ T3498] ? __warn+0x16a/0x300 [ 42.606517][ T3498] ? fb_is_primary_device+0xcc/0xcc [ 42.611759][ T3498] ? del_gendisk+0x703/0x780 [ 42.616344][ T3498] __warn+0x2b2/0x300 [ 42.620313][ T3498] ? del_gendisk+0x703/0x780 [ 42.624881][ T3498] report_bug+0x1b7/0x2e0 [ 42.629194][ T3498] handle_bug+0x3d/0x70 [ 42.633331][ T3498] exc_invalid_op+0x16/0x40 [ 42.637838][ T3498] asm_exc_invalid_op+0x16/0x20 [ 42.642692][ T3498] RIP: 0010:del_gendisk+0x703/0x780 [ 42.647887][ T3498] Code: 00 00 4c 89 f6 e8 2d 8a fa ff 4c 89 f7 be 01 00 00 00 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f 5d e9 22 16 fd ff e8 7d a9 90 fd <0f> 0b 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f 5d c3 89 e9 80 e1 07 [ 42.667476][ T3498] RSP: 0018:ffffc900024efdf0 EFLAGS: 00010293 [ 42.673525][ T3498] RAX: ffffffff83ef3503 RBX: 0000000000000240 RCX: ffff88807d893a00 [ 42.681495][ T3498] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 42.689549][ T3498] RBP: 0000000000000000 R08: ffffffff83ef2f18 R09: fffff5200049dfb9 [ 42.697501][ T3498] R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1100fa9c210 [ 42.705629][ T3498] R13: ffff88807d4e1000 R14: ffff88801e5f2ac0 R15: ffff88807d4e1080 [ 42.713600][ T3498] ? del_gendisk+0x118/0x780 [ 42.718192][ T3498] ? del_gendisk+0x703/0x780 [ 42.722768][ T3498] loop_control_ioctl+0x552/0x700 [ 42.727774][ T3498] ? xor_init+0x60/0x60 [ 42.731911][ T3498] ? bpf_lsm_file_ioctl+0x5/0x10 [ 42.736828][ T3498] ? security_file_ioctl+0x7d/0xa0 [ 42.741929][ T3498] ? xor_init+0x60/0x60 [ 42.746113][ T3498] __se_sys_ioctl+0xf1/0x160 [ 42.750823][ T3498] do_syscall_64+0x3d/0xb0 [ 42.755246][ T3498] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 42.761144][ T3498] RIP: 0033:0x7f42c4ae40c9 [ 42.765553][ T3498] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 42.785276][ T3498] RSP: 002b:00007ffd12d78c28 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 42.793679][ T3498] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f42c4ae40c9 [ 42.801634][ T3498] RDX: 0000000020000000 RSI: 0000000000004c81 RDI: 0000000000000004 [ 42.809584][ T3498] RBP: 00007f42c4aa80b0 R08: 0000000000000000 R09: 0000000000000000 [ 42.817540][ T3498] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f42c4aa8140 [ 42.825491][ T3498] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 42.833451][ T3498] [ 42.836714][ T3498] Kernel Offset: disabled [ 42.841076][ T3498] Rebooting in 86400 seconds..