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)="80000000800000000100000000100000000400000400000005", 0x19, 0x2024)
pwrite64(r0, &(0x7f0000001060)="000800000000000000000000000400002000000002", 0x15, 0x2068)
pwrite64(r0, &(0x7f00000010e0)="541901005419010054190100541901005419", 0x12, 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')
[ 93.703829][ T4648] Bluetooth: hci0: command tx timeout
[ 93.783229][ T5325] loop0: detected capacity change from 0 to 128
[ 93.836786][ T5325] ufs: ufs_fill_super(): fs needs fsck
[ 93.849250][ T5325] ------------[ cut here ]------------
[ 93.859404][ T5325] UBSAN: shift-out-of-bounds in fs/ufs/super.c:1177:18
[ 93.866721][ T5325] shift exponent 4294967294 is too large for 32-bit type 'int'
[ 93.871475][ T5325] CPU: 0 UID: 0 PID: 5325 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 93.871494][ T5325] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 93.871502][ T5325] Call Trace:
[ 93.871508][ T5325]
[ 93.871514][ T5325] dump_stack_lvl+0xe8/0x150
[ 93.871580][ T5325] ubsan_epilogue+0xa/0x30
[ 93.871613][ T5325] __ubsan_handle_shift_out_of_bounds+0x36d/0x400
[ 93.871678][ T5325] ufs_fill_super+0x5f8d/0x67e0
[ 93.871715][ T5325] ? setup_bdev_super+0x4c1/0x5b0
[ 93.871738][ T5325] get_tree_bdev_flags+0x430/0x4f0
[ 93.871757][ T5325] ? __pfx_ufs_fill_super+0x10/0x10
[ 93.871771][ T5325] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 93.871798][ T5325] vfs_get_tree+0x92/0x2a0
[ 93.871815][ T5325] do_new_mount+0x319/0xdc0
[ 93.871829][ T5325] ? __pfx_do_new_mount+0x10/0x10
[ 93.871841][ T5325] ? ns_capable+0x89/0xe0
[ 93.871855][ T5325] ? path_mount+0x647/0x1040
[ 93.871868][ T5325] ? user_path_at+0xd4/0x160
[ 93.871881][ T5325] __se_sys_mount+0x31d/0x420
[ 93.871900][ T5325] ? __pfx___se_sys_mount+0x10/0x10
[ 93.871919][ T5325] ? __x64_sys_mount+0x20/0xc0
[ 93.871934][ T5325] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 93.871948][ T5325] do_syscall_64+0x174/0x580
[ 93.872010][ T5325] ? trace_irq_disable+0x3b/0x140
[ 93.872034][ T5325] ? clear_bhb_loop+0x40/0x90
[ 93.872050][ T5325] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 93.872063][ T5325] RIP: 0033:0x7fa7c2b9e019
[ 93.872076][ T5325] 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
[ 93.872085][ T5325] RSP: 002b:00007fa7c3a39fe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 93.872099][ T5325] RAX: ffffffffffffffda RBX: 00007fa7c2e25fa0 RCX: 00007fa7c2b9e019
[ 93.872107][ T5325] RDX: 0000200000004000 RSI: 0000200000003000 RDI: 0000200000000040
[ 93.872116][ T5325] RBP: 00007fa7c2c3500c R08: 0000200000005000 R09: 0000000000000000
[ 93.872124][ T5325] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 93.872132][ T5325] R13: 00007fa7c2e26038 R14: 00007fa7c2e25fa0 R15: 00007ffcca8b1fc8
[ 93.872150][ T5325]
[ 93.872204][ T5325] ---[ end trace ]---
[ 93.971545][ T5325] Kernel panic - not syncing: UBSAN: panic_on_warn set ...
[ 93.974579][ T5325] CPU: 0 UID: 0 PID: 5325 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 93.978310][ T5325] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 93.982400][ T5325] Call Trace:
[ 93.983852][ T5325]
[ 93.985145][ T5325] vpanic+0x56c/0xa60
[ 93.986820][ T5325] ? __pfx_vpanic+0x10/0x10
[ 93.988821][ T5325] ? irqentry_exit+0x218/0x8f0
[ 93.990822][ T5325] panic+0xc5/0xd0
[ 93.992410][ T5325] ? __pfx_panic+0x10/0x10
[ 93.994247][ T5325] ? __pfx__printk+0x10/0x10
[ 93.996180][ T5325] check_panic_on_warn+0x89/0xb0
[ 93.998292][ T5325] __ubsan_handle_shift_out_of_bounds+0x36d/0x400
[ 94.001053][ T5325] ufs_fill_super+0x5f8d/0x67e0
[ 94.003125][ T5325] ? setup_bdev_super+0x4c1/0x5b0
[ 94.005235][ T5325] get_tree_bdev_flags+0x430/0x4f0
[ 94.007339][ T5325] ? __pfx_ufs_fill_super+0x10/0x10
[ 94.009479][ T5325] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 94.011712][ T5325] vfs_get_tree+0x92/0x2a0
[ 94.013563][ T5325] do_new_mount+0x319/0xdc0
[ 94.015504][ T5325] ? __pfx_do_new_mount+0x10/0x10
[ 94.017591][ T5325] ? ns_capable+0x89/0xe0
[ 94.019405][ T5325] ? path_mount+0x647/0x1040
[ 94.021293][ T5325] ? user_path_at+0xd4/0x160
[ 94.023196][ T5325] __se_sys_mount+0x31d/0x420
[ 94.025159][ T5325] ? __pfx___se_sys_mount+0x10/0x10
[ 94.027327][ T5325] ? __x64_sys_mount+0x20/0xc0
[ 94.029339][ T5325] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 94.031784][ T5325] do_syscall_64+0x174/0x580
[ 94.033682][ T5325] ? trace_irq_disable+0x3b/0x140
[ 94.035825][ T5325] ? clear_bhb_loop+0x40/0x90
[ 94.037772][ T5325] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 94.040298][ T5325] RIP: 0033:0x7fa7c2b9e019
[ 94.042139][ T5325] 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
[ 94.050240][ T5325] RSP: 002b:00007fa7c3a39fe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 94.053743][ T5325] RAX: ffffffffffffffda RBX: 00007fa7c2e25fa0 RCX: 00007fa7c2b9e019
[ 94.057144][ T5325] RDX: 0000200000004000 RSI: 0000200000003000 RDI: 0000200000000040
[ 94.060645][ T5325] RBP: 00007fa7c2c3500c R08: 0000200000005000 R09: 0000000000000000
[ 94.063958][ T5325] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 94.067289][ T5325] R13: 00007fa7c2e26038 R14: 00007fa7c2e25fa0 R15: 00007ffcca8b1fc8
[ 94.070596][ T5325]
[ 94.072295][ T5325] Kernel Offset: disabled
[ 94.073998][ T5325] Rebooting in 86400 seconds..