loop2: detected capacity change from 0 to 32768 ------------[ cut here ]------------ UBSAN: shift-out-of-bounds in fs/jfs/jfs_extent.c:319:16 shift exponent 108 is too large for 64-bit type 's64' (aka 'long long') CPU: 1 PID: 12318 Comm: syz-executor.2 Not tainted 6.9.0-rc6-next-20240503-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 ubsan_epilogue lib/ubsan.c:231 [inline] __ubsan_handle_shift_out_of_bounds+0x3c8/0x420 lib/ubsan.c:468 extBalloc fs/jfs/jfs_extent.c:319 [inline] extAlloc+0xe5c/0x1010 fs/jfs/jfs_extent.c:122 jfs_get_block+0x41b/0xe60 fs/jfs/inode.c:248 __block_write_begin_int+0x50c/0x1a70 fs/buffer.c:2128 __block_write_begin fs/buffer.c:2177 [inline] block_write_begin+0x9b/0x1e0 fs/buffer.c:2236 jfs_write_begin+0x31/0x70 fs/jfs/inode.c:299 generic_perform_write+0x322/0x640 mm/filemap.c:4016 generic_file_write_iter+0xaf/0x310 mm/filemap.c:4137 new_sync_write fs/read_write.c:497 [inline] vfs_write+0xa72/0xc90 fs/read_write.c:590 ksys_write+0x1a0/0x2c0 fs/read_write.c:643 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ffa6287dd29 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:00007ffa635410c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ffa629abf80 RCX: 00007ffa6287dd29 RDX: 00000000fffffef2 RSI: 0000000020000240 RDI: 0000000000000007 RBP: 00007ffa628ca47e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007ffa629abf80 R15: 00007ffcd45989c8 ---[ end trace ]---