loop0: detected capacity change from 0 to 32768 ================================================================================ UBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:2639:11 shift exponent 109 is too large for 32-bit type 'int' CPU: 0 PID: 5488 Comm: syz-executor.0 Not tainted 6.7.0-rc8-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x125/0x1b0 lib/dump_stack.c:106 ubsan_epilogue lib/ubsan.c:217 [inline] __ubsan_handle_shift_out_of_bounds+0x2a6/0x480 lib/ubsan.c:387 dbSplit.cold+0x19/0x1e fs/jfs/jfs_dmap.c:2639 dbAllocBits+0x146/0x630 fs/jfs/jfs_dmap.c:2191 dbAllocDmap+0x5c/0x100 fs/jfs/jfs_dmap.c:2032 dbAllocNear fs/jfs/jfs_dmap.c:1258 [inline] dbAlloc+0x780/0xaa0 fs/jfs/jfs_dmap.c:843 diNewExt+0x736/0x1a70 fs/jfs/jfs_imap.c:2255 diAllocExt fs/jfs/jfs_imap.c:1949 [inline] diAllocAG+0x1707/0x2330 fs/jfs/jfs_imap.c:1666 diAlloc+0x8f7/0x1a70 fs/jfs/jfs_imap.c:1587 ialloc+0x84/0x9e0 fs/jfs/jfs_inode.c:56 jfs_mkdir+0x240/0xb30 fs/jfs/namei.c:225 vfs_mkdir+0x576/0x820 fs/namei.c:4106 do_mkdirat+0x2fd/0x3a0 fs/namei.c:4129 __do_sys_mkdir fs/namei.c:4149 [inline] __se_sys_mkdir fs/namei.c:4147 [inline] __x64_sys_mkdir+0xf2/0x140 fs/namei.c:4147 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7fc5c6e7ad39 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc5c7ff20c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 00007fc5c6f9bf80 RCX: 00007fc5c6e7ad39 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200052c0 RBP: 00007fc5c6ed7567 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fc5c6f9bf80 R15: 00007fff6f112798 ================================================================================