program:
openat$dir(0xffffffffffffff9c, &(0x7f0000001a00)='./file1\x00', 0x40, 0x0)
r0 = syz_open_dev$ndb(&(0x7f00000000c0), 0x0, 0x80000)
r1 = socket(0x2, 0x1, 0x0)
r2 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x0)
ioctl$NBD_SET_SOCK(r0, 0xab00, r1)
ioctl$NBD_DO_IT(r2, 0xab03)
mount(&(0x7f0000000000)=@nbd={'/dev/nbd', 0x0}, &(0x7f0000004a00)='./file1\x00', &(0x7f0000000040)='qnx6\x00', 0x2008087, 0x0)
[ 68.503480][ T5302] Bluetooth: hci0: command tx timeout
[ 68.638177][ T5302] block nbd0: Receive control failed (result -107)
[ 68.657815][ T5323] qnx6: unable to read the first superblock
[ 68.667961][ T5323] ------------[ cut here ]------------
[ 68.670721][ T5323] WARNING: CPU: 0 PID: 5323 at fs/buffer.c:1125 bdev_getblk+0x580/0x660
[ 68.674479][ T5323] Modules linked in:
[ 68.676391][ T5323] CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 68.687882][ T5323] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[ 68.694296][ T5323] RIP: 0010:bdev_getblk+0x580/0x660
[ 68.704102][ T5323] Code: 26 fb ff ff e8 c1 a6 75 ff 48 c7 c7 20 28 7a 8b 48 c7 c6 53 d3 83 8d 4c 89 fa 4c 89 e9 e8 68 e4 dc fe eb bd e8 a1 a6 75 ff 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 41 80 3c 07 00 74 08 48 89
[ 68.724649][ T5323] RSP: 0018:ffffc9000f49f9d8 EFLAGS: 00010283
[ 68.727104][ T5323] RAX: ffffffff824aacef RBX: ffff88803214d098 RCX: 0000000000100000
[ 68.734882][ T5323] RDX: ffffc9000dbf2000 RSI: 00000000000019f0 RDI: 00000000000019f1
[ 68.743197][ T5323] RBP: 0000000000000200 R08: 0000000000000000 R09: ffffffff82199acd
[ 68.749126][ T5323] R10: 0000000000000406 R11: 0000000000000002 R12: ffff88803214d9f0
[ 68.753549][ T5323] R13: ffff88803214d080 R14: 0000000000000200 R15: 1ffff11006429a13
[ 68.756911][ T5323] FS: 00007f4e12bf56c0(0000) GS:ffff88808d300000(0000) knlGS:0000000000000000
[ 68.760638][ T5323] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 68.763430][ T5323] CR2: 00007ffda1691dc8 CR3: 0000000000cca000 CR4: 0000000000352ef0
[ 68.769177][ T5323] Call Trace:
[ 68.771297][ T5323]
[ 68.773318][ T5323] __bread_gfp+0x89/0x3c0
[ 68.776367][ T5323] qnx6_check_first_superblock+0xa1/0x330
[ 68.781402][ T5323] ? sb_set_blocksize+0x120/0x180
[ 68.786269][ T5323] qnx6_fill_super+0x4c8/0x1280
[ 68.789257][ T5323] ? setup_bdev_super+0x4c1/0x5b0
[ 68.792167][ T5323] get_tree_bdev_flags+0x40e/0x4d0
[ 68.796434][ T5323] ? __pfx_qnx6_fill_super+0x10/0x10
[ 68.798692][ T5323] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 68.801091][ T5323] vfs_get_tree+0x92/0x2b0
[ 68.802811][ T5323] do_new_mount+0x302/0xa10
[ 68.804612][ T5323] ? apparmor_capable+0x137/0x1b0
[ 68.807048][ T5323] ? __pfx_do_new_mount+0x10/0x10
[ 68.809535][ T5323] ? ns_capable+0x8a/0xf0
[ 68.811546][ T5323] ? kmem_cache_free+0x19b/0x690
[ 68.813816][ T5323] __se_sys_mount+0x313/0x410
[ 68.817069][ T5323] ? __pfx___se_sys_mount+0x10/0x10
[ 68.820377][ T5323] ? do_syscall_64+0xbe/0xfa0
[ 68.822952][ T5323] ? __x64_sys_mount+0x20/0xc0
[ 68.826275][ T5323] do_syscall_64+0xfa/0xfa0
[ 68.828710][ T5323] ? lockdep_hardirqs_on+0x9c/0x150
[ 68.831641][ T5323] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 68.834886][ T5323] ? clear_bhb_loop+0x60/0xb0
[ 68.838028][ T5323] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 68.842730][ T5323] RIP: 0033:0x7f4e11d8efc9
[ 68.846457][ T5323] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
[ 68.861103][ T5323] RSP: 002b:00007f4e12bf5038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 68.866977][ T5323] RAX: ffffffffffffffda RBX: 00007f4e11fe5fa0 RCX: 00007f4e11d8efc9
[ 68.874199][ T5323] RDX: 0000200000000040 RSI: 0000200000004a00 RDI: 0000200000000000
[ 68.879714][ T5323] RBP: 00007f4e11e11f91 R08: 0000000000000000 R09: 0000000000000000
[ 68.884073][ T5323] R10: 0000000002008087 R11: 0000000000000246 R12: 0000000000000000
[ 68.889553][ T5323] R13: 00007f4e11fe6038 R14: 00007f4e11fe5fa0 R15: 00007ffec2839ad8
[ 68.896713][ T5323]
[ 68.899034][ T5323] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 68.905516][ T5323] CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 68.910267][ T5323] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[ 68.914611][ T5323] Call Trace:
[ 68.916063][ T5323]
[ 68.917359][ T5323] dump_stack_lvl+0x99/0x250
[ 68.919255][ T5323] ? __asan_memcpy+0x40/0x70
[ 68.922113][ T5323] ? __pfx_dump_stack_lvl+0x10/0x10
[ 68.925873][ T5323] ? __pfx__printk+0x10/0x10
[ 68.928652][ T5323] vpanic+0x237/0x6d0
[ 68.930838][ T5323] ? __pfx_vpanic+0x10/0x10
[ 68.932803][ T5323] panic+0xb9/0xc0
[ 68.934375][ T5323] ? __pfx_panic+0x10/0x10
[ 68.936250][ T5323] __warn+0x31b/0x4b0
[ 68.937934][ T5323] ? bdev_getblk+0x580/0x660
[ 68.939819][ T5323] ? bdev_getblk+0x580/0x660
[ 68.942526][ T5323] report_bug+0x2be/0x4f0
[ 68.945308][ T5323] ? bdev_getblk+0x580/0x660
[ 68.948637][ T5323] ? bdev_getblk+0x580/0x660
[ 68.951765][ T5323] ? bdev_getblk+0x582/0x660
[ 68.955845][ T5323] handle_bug+0x84/0x160
[ 68.960256][ T5323] exc_invalid_op+0x1a/0x50
[ 68.963674][ T5323] asm_exc_invalid_op+0x1a/0x20
[ 68.966925][ T5323] RIP: 0010:bdev_getblk+0x580/0x660
[ 68.970099][ T5323] Code: 26 fb ff ff e8 c1 a6 75 ff 48 c7 c7 20 28 7a 8b 48 c7 c6 53 d3 83 8d 4c 89 fa 4c 89 e9 e8 68 e4 dc fe eb bd e8 a1 a6 75 ff 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 41 80 3c 07 00 74 08 48 89
[ 68.986041][ T5323] RSP: 0018:ffffc9000f49f9d8 EFLAGS: 00010283
[ 68.990518][ T5323] RAX: ffffffff824aacef RBX: ffff88803214d098 RCX: 0000000000100000
[ 68.994795][ T5323] RDX: ffffc9000dbf2000 RSI: 00000000000019f0 RDI: 00000000000019f1
[ 68.998540][ T5323] RBP: 0000000000000200 R08: 0000000000000000 R09: ffffffff82199acd
[ 69.003225][ T5323] R10: 0000000000000406 R11: 0000000000000002 R12: ffff88803214d9f0
[ 69.007972][ T5323] R13: ffff88803214d080 R14: 0000000000000200 R15: 1ffff11006429a13
[ 69.012291][ T5323] ? fs_reclaim_acquire+0x7d/0x100
[ 69.016725][ T5323] ? bdev_getblk+0x57f/0x660
[ 69.019652][ T5323] ? bdev_getblk+0x57f/0x660
[ 69.023664][ T5323] __bread_gfp+0x89/0x3c0
[ 69.026598][ T5323] qnx6_check_first_superblock+0xa1/0x330
[ 69.031080][ T5323] ? sb_set_blocksize+0x120/0x180
[ 69.034273][ T5323] qnx6_fill_super+0x4c8/0x1280
[ 69.037307][ T5323] ? setup_bdev_super+0x4c1/0x5b0
[ 69.040948][ T5323] get_tree_bdev_flags+0x40e/0x4d0
[ 69.044651][ T5323] ? __pfx_qnx6_fill_super+0x10/0x10
[ 69.048438][ T5323] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 69.052260][ T5323] vfs_get_tree+0x92/0x2b0
[ 69.054099][ T5323] do_new_mount+0x302/0xa10
[ 69.055989][ T5323] ? apparmor_capable+0x137/0x1b0
[ 69.058292][ T5323] ? __pfx_do_new_mount+0x10/0x10
[ 69.060400][ T5323] ? ns_capable+0x8a/0xf0
[ 69.062199][ T5323] ? kmem_cache_free+0x19b/0x690
[ 69.064605][ T5323] __se_sys_mount+0x313/0x410
[ 69.068352][ T5323] ? __pfx___se_sys_mount+0x10/0x10
[ 69.072103][ T5323] ? do_syscall_64+0xbe/0xfa0
[ 69.075607][ T5323] ? __x64_sys_mount+0x20/0xc0
[ 69.081479][ T5323] do_syscall_64+0xfa/0xfa0
[ 69.084453][ T5323] ? lockdep_hardirqs_on+0x9c/0x150
[ 69.087962][ T5323] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 69.093914][ T5323] ? clear_bhb_loop+0x60/0xb0
[ 69.096993][ T5323] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 69.101466][ T5323] RIP: 0033:0x7f4e11d8efc9
[ 69.104241][ T5323] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
[ 69.119473][ T5323] RSP: 002b:00007f4e12bf5038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 69.126149][ T5323] RAX: ffffffffffffffda RBX: 00007f4e11fe5fa0 RCX: 00007f4e11d8efc9
[ 69.131607][ T5323] RDX: 0000200000000040 RSI: 0000200000004a00 RDI: 0000200000000000
[ 69.137567][ T5323] RBP: 00007f4e11e11f91 R08: 0000000000000000 R09: 0000000000000000
[ 69.143711][ T5323] R10: 0000000002008087 R11: 0000000000000246 R12: 0000000000000000
[ 69.149405][ T5323] R13: 00007f4e11fe6038 R14: 00007f4e11fe5fa0 R15: 00007ffec2839ad8
[ 69.154697][ T5323]
[ 69.159697][ T5323] Kernel Offset: disabled
[ 69.164418][ T5323] Rebooting in 86400 seconds..