loop4: detected capacity change from 0 to 32768 ================================================================================ 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: 1 PID: 7637 Comm: syz-executor.4 Not tainted 6.1.89-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call trace: dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 ubsan_epilogue lib/ubsan.c:151 [inline] __ubsan_handle_shift_out_of_bounds+0x2f4/0x36c lib/ubsan.c:321 dbSplit+0x1d4/0x1d8 fs/jfs/jfs_dmap.c:2639 dbAllocBits+0x434/0x8d8 fs/jfs/jfs_dmap.c:2191 dbAllocDmap fs/jfs/jfs_dmap.c:2032 [inline] dbAllocDmapLev+0x1d4/0x414 fs/jfs/jfs_dmap.c:1986 dbAllocCtl+0x104/0x844 fs/jfs/jfs_dmap.c:1823 dbAllocAG+0x208/0xe4c fs/jfs/jfs_dmap.c:1364 dbAlloc+0x520/0xb68 fs/jfs/jfs_dmap.c:888 dtSplitUp fs/jfs/jfs_dtree.c:979 [inline] dtInsert+0xab0/0x54f4 fs/jfs/jfs_dtree.c:868 jfs_symlink+0x718/0xef4 fs/jfs/namei.c:1019 vfs_symlink+0x244/0x3a8 fs/namei.c:4473 do_symlinkat+0x1bc/0x45c fs/namei.c:4502 __do_sys_symlinkat fs/namei.c:4519 [inline] __se_sys_symlinkat fs/namei.c:4516 [inline] __arm64_sys_symlinkat+0xa4/0xbc fs/namei.c:4516 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 ================================================================================ find_entry called with index >= next_index find_entry called with index >= next_index find_entry called with index >= next_index