------------[ 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: 9420 Comm: syz-executor.4 Not tainted 6.9.0-rc7-syzkaller-gfda5695d692c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:317 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:324 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:114 dump_stack+0x1c/0x28 lib/dump_stack.c:123 ubsan_epilogue lib/ubsan.c:231 [inline] __ubsan_handle_shift_out_of_bounds+0x2f4/0x36c lib/ubsan.c:468 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_create+0x698/0xa04 fs/jfs/namei.c:137 lookup_open fs/namei.c:3497 [inline] open_last_lookups fs/namei.c:3566 [inline] path_openat+0xfb4/0x2830 fs/namei.c:3796 do_filp_open+0x1bc/0x3cc fs/namei.c:3826 do_sys_openat2+0x124/0x1b8 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] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1432 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 ---[ end trace ]--- find_entry called with index >= next_index find_entry called with index >= next_index find_entry called with index >= next_index find_entry called with index >= next_index find_entry called with index >= next_index