------------[ cut here ]------------
UBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:2639:11
shift exponent 80 is too large for 32-bit type 'int'
CPU: 0 PID: 6444 Comm: syz-executor.2 Not tainted 6.9.0-rc6-syzkaller-00046-g18daea77cca6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:114
 ubsan_epilogue lib/ubsan.c:231 [inline]
 __ubsan_handle_shift_out_of_bounds+0x2a5/0x480 lib/ubsan.c:468
 dbSplit.cold+0x19/0x1e fs/jfs/jfs_dmap.c:2639
 dbAllocBits+0x149/0x630 fs/jfs/jfs_dmap.c:2191
 dbAllocDmap+0x5c/0x110 fs/jfs/jfs_dmap.c:2032
 dbAllocDmapLev+0x17a/0x2f0 fs/jfs/jfs_dmap.c:1986
 dbAllocCtl+0x12c/0x7b0 fs/jfs/jfs_dmap.c:1823
 dbAllocAG+0x8c9/0xd30 fs/jfs/jfs_dmap.c:1364
 dbAlloc+0x415/0xab0 fs/jfs/jfs_dmap.c:888
 dtSplitUp+0x3f3/0x5840 fs/jfs/jfs_dtree.c:979
 dtInsert+0x876/0xb00 fs/jfs/jfs_dtree.c:868
 jfs_create+0x640/0xb40 fs/jfs/namei.c:137
 lookup_open.isra.0+0x10a1/0x13c0 fs/namei.c:3497
 open_last_lookups fs/namei.c:3566 [inline]
 path_openat+0x92f/0x2990 fs/namei.c:3796
 do_filp_open+0x1dc/0x430 fs/namei.c:3826
 do_sys_openat2+0x17a/0x1e0 fs/open.c:1406
 do_sys_open fs/open.c:1421 [inline]
 __do_sys_openat fs/open.c:1437 [inline]
 __se_sys_openat fs/open.c:1432 [inline]
 __x64_sys_openat+0x175/0x210 fs/open.c:1432
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f314127dea9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3141fd60c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f31413ac050 RCX: 00007f314127dea9
RDX: 000000000000275a RSI: 0000000020000080 RDI: ffffffffffffff9c
RBP: 00007f31412ca4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f31413ac050 R15: 00007ffff4ddfc78
 </TASK>
---[ end trace ]---