loop0: detected capacity change from 0 to 32768 ================================================================================ UBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:2707:11 shift exponent 80 is too large for 32-bit type 'int' CPU: 1 PID: 4400 Comm: syz-executor.0 Not tainted 5.15.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Call trace: dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 dump_stack+0x1c/0x58 lib/dump_stack.c:113 ubsan_epilogue lib/ubsan.c:151 [inline] __ubsan_handle_shift_out_of_bounds+0x2f8/0x378 lib/ubsan.c:321 dbSplit+0x1d4/0x1d8 fs/jfs/jfs_dmap.c:2707 dbAllocBits+0x434/0x8d8 fs/jfs/jfs_dmap.c:2259 dbAllocDmap fs/jfs/jfs_dmap.c:2100 [inline] dbAllocDmapLev+0x1d4/0x414 fs/jfs/jfs_dmap.c:2054 dbAllocCtl+0x104/0x878 fs/jfs/jfs_dmap.c:1891 dbAllocAG+0x208/0xe4c fs/jfs/jfs_dmap.c:1432 dbAlloc+0x4b0/0xa18 fs/jfs/jfs_dmap.c:888 dtSplitUp fs/jfs/jfs_dtree.c:979 [inline] dtInsert+0xaa0/0x5534 fs/jfs/jfs_dtree.c:868 jfs_symlink+0x910/0xf1c fs/jfs/namei.c:1019 vfs_symlink+0x244/0x3a8 fs/namei.c:4429 do_symlinkat+0x364/0x6b0 fs/namei.c:4458 __do_sys_symlinkat fs/namei.c:4475 [inline] __se_sys_symlinkat fs/namei.c:4472 [inline] __arm64_sys_symlinkat+0xa4/0xbc fs/namei.c:4472 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 ================================================================================ find_entry called with index >= next_index find_entry called with index >= next_index find_entry called with index >= next_index