program:
r0 = memfd_create(&(0x7f0000000000)='syzkaller\x00', 0x0)
ftruncate(r0, 0x10000)
pwrite64(r0, &(0x7f0000001000)='\b\x00\x00\x00\n\x00\x00\x00\v\x00\x00\x00\f\x00'/24, 0x18, 0x2008)
pwrite64(r0, &(0x7f0000001020)="80000000800000000100000000100000000400000400000005000000", 0x1c, 0x2024)
pwrite64(r0, &(0x7f0000001060)="00080000000000000000000000040000200000000200000000000000", 0x1c, 0x2068)
pwrite64(r0, &(0x7f00000010e0)="541901005419010054190100", 0xc, 0x2554)
r1 = syz_open_dev$loop(&(0x7f0000002000), 0x0, 0x2)
ioctl$LOOP_SET_FD(r1, 0x4c00, r0)
close(r1)
mkdirat(0xffffffffffffff9c, &(0x7f0000003000)='./mnt\x00', 0x1ff)
mount(&(0x7f0000000040)=@loop={'/dev/loop', 0x0}, &(0x7f0000003000)='./mnt\x00', &(0x7f0000004000)='ufs\x00', 0x0, &(0x7f0000005000)='ufstype=sun\x00')
[ 109.185798][ T4651] Bluetooth: hci0: command tx timeout
[ 109.214260][ T5327] loop0: detected capacity change from 0 to 128
[ 109.247041][ T5327] ufs: ufs_fill_super(): fs needs fsck
[ 109.259478][ T5327] ------------[ cut here ]------------
[ 109.268082][ T5327] UBSAN: shift-out-of-bounds in fs/ufs/super.c:1177:18
[ 109.278993][ T5327] shift exponent 4294967294 is too large for 32-bit type 'int'
[ 109.291887][ T5327] CPU: 0 UID: 0 PID: 5327 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 109.291905][ T5327] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 109.291911][ T5327] Call Trace:
[ 109.291917][ T5327]
[ 109.291923][ T5327] dump_stack_lvl+0xe8/0x150
[ 109.292006][ T5327] ubsan_epilogue+0xa/0x30
[ 109.292022][ T5327] __ubsan_handle_shift_out_of_bounds+0x36d/0x400
[ 109.292081][ T5327] ufs_fill_super+0x5f8d/0x67e0
[ 109.292115][ T5327] ? setup_bdev_super+0x4c1/0x5b0
[ 109.292136][ T5327] get_tree_bdev_flags+0x430/0x4f0
[ 109.292155][ T5327] ? __pfx_ufs_fill_super+0x10/0x10
[ 109.292168][ T5327] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 109.292193][ T5327] vfs_get_tree+0x92/0x2a0
[ 109.292217][ T5327] do_new_mount+0x319/0xdc0
[ 109.292235][ T5327] ? __pfx_do_new_mount+0x10/0x10
[ 109.292248][ T5327] ? ns_capable+0x89/0xe0
[ 109.292264][ T5327] ? path_mount+0x647/0x1040
[ 109.292280][ T5327] ? user_path_at+0xd4/0x160
[ 109.292297][ T5327] __se_sys_mount+0x31d/0x420
[ 109.292315][ T5327] ? __pfx___se_sys_mount+0x10/0x10
[ 109.292328][ T5327] ? __x64_sys_mount+0x20/0xc0
[ 109.292336][ T5327] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 109.292344][ T5327] do_syscall_64+0x174/0x580
[ 109.292388][ T5327] ? trace_irq_disable+0x3b/0x140
[ 109.292404][ T5327] ? clear_bhb_loop+0x40/0x90
[ 109.292420][ T5327] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 109.292434][ T5327] RIP: 0033:0x7fc44659e019
[ 109.292445][ T5327] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 e8 ff ff ff f7 d8 64 89 01 48
[ 109.292455][ T5327] RSP: 002b:00007fc447391fe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 109.292467][ T5327] RAX: ffffffffffffffda RBX: 00007fc446825fa0 RCX: 00007fc44659e019
[ 109.292473][ T5327] RDX: 0000200000004000 RSI: 0000200000003000 RDI: 0000200000000040
[ 109.292479][ T5327] RBP: 00007fc44663500c R08: 0000200000005000 R09: 0000000000000000
[ 109.292484][ T5327] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 109.292488][ T5327] R13: 00007fc446826038 R14: 00007fc446825fa0 R15: 00007ffcce12d508
[ 109.292499][ T5327]
[ 109.397559][ T5327] ---[ end trace ]---
[ 109.399388][ T5327] Kernel panic - not syncing: UBSAN: panic_on_warn set ...
[ 109.402317][ T5327] CPU: 0 UID: 0 PID: 5327 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 109.405803][ T5327] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 109.409773][ T5327] Call Trace:
[ 109.411146][ T5327]
[ 109.412323][ T5327] vpanic+0x56c/0xa60
[ 109.414040][ T5327] ? __pfx_vpanic+0x10/0x10
[ 109.416044][ T5327] ? irqentry_exit+0x218/0x8f0
[ 109.418060][ T5327] panic+0xc5/0xd0
[ 109.419662][ T5327] ? __pfx_panic+0x10/0x10
[ 109.421518][ T5327] ? __pfx__printk+0x10/0x10
[ 109.423336][ T5327] check_panic_on_warn+0x89/0xb0
[ 109.425326][ T5327] __ubsan_handle_shift_out_of_bounds+0x36d/0x400
[ 109.427848][ T5327] ufs_fill_super+0x5f8d/0x67e0
[ 109.429859][ T5327] ? setup_bdev_super+0x4c1/0x5b0
[ 109.431973][ T5327] get_tree_bdev_flags+0x430/0x4f0
[ 109.434116][ T5327] ? __pfx_ufs_fill_super+0x10/0x10
[ 109.436215][ T5327] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 109.438541][ T5327] vfs_get_tree+0x92/0x2a0
[ 109.440305][ T5327] do_new_mount+0x319/0xdc0
[ 109.442047][ T5327] ? __pfx_do_new_mount+0x10/0x10
[ 109.444034][ T5327] ? ns_capable+0x89/0xe0
[ 109.445859][ T5327] ? path_mount+0x647/0x1040
[ 109.447702][ T5327] ? user_path_at+0xd4/0x160
[ 109.449607][ T5327] __se_sys_mount+0x31d/0x420
[ 109.451558][ T5327] ? __pfx___se_sys_mount+0x10/0x10
[ 109.453733][ T5327] ? __x64_sys_mount+0x20/0xc0
[ 109.455822][ T5327] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 109.458412][ T5327] do_syscall_64+0x174/0x580
[ 109.460396][ T5327] ? trace_irq_disable+0x3b/0x140
[ 109.462539][ T5327] ? clear_bhb_loop+0x40/0x90
[ 109.464515][ T5327] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 109.466980][ T5327] RIP: 0033:0x7fc44659e019
[ 109.468847][ T5327] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 e8 ff ff ff f7 d8 64 89 01 48
[ 109.476743][ T5327] RSP: 002b:00007fc447391fe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 109.480030][ T5327] RAX: ffffffffffffffda RBX: 00007fc446825fa0 RCX: 00007fc44659e019
[ 109.483312][ T5327] RDX: 0000200000004000 RSI: 0000200000003000 RDI: 0000200000000040
[ 109.486616][ T5327] RBP: 00007fc44663500c R08: 0000200000005000 R09: 0000000000000000
[ 109.489901][ T5327] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 109.493039][ T5327] R13: 00007fc446826038 R14: 00007fc446825fa0 R15: 00007ffcce12d508
[ 109.496179][ T5327]
[ 109.497824][ T5327] Kernel Offset: disabled
[ 109.499553][ T5327] Rebooting in 86400 seconds..