================================================================================ UBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:776:12 shift exponent 1601862003 is too large for 64-bit type 'long long' CPU: 0 PID: 2742 Comm: syz-executor.5 Not tainted 6.1.0-rc3-syzkaller-00280-g64c3dd0b98f5 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106 ubsan_epilogue lib/ubsan.c:151 [inline] __ubsan_handle_shift_out_of_bounds+0x33d/0x3b0 lib/ubsan.c:322 dbAlloc+0xbdc/0xc90 fs/jfs/jfs_dmap.c:776 extBalloc fs/jfs/jfs_extent.c:321 [inline] extAlloc+0x4b9/0xff0 fs/jfs/jfs_extent.c:122 jfs_get_block+0x342/0xce0 fs/jfs/inode.c:248 __block_write_begin_int+0x54c/0x1a80 fs/buffer.c:1991 __block_write_begin fs/buffer.c:2041 [inline] block_write_begin+0x93/0x1e0 fs/buffer.c:2102 jfs_write_begin+0x2d/0x60 fs/jfs/inode.c:304 generic_perform_write+0x2e4/0x5e0 mm/filemap.c:3753 __generic_file_write_iter+0x176/0x400 mm/filemap.c:3881 generic_file_write_iter+0xab/0x310 mm/filemap.c:3913 __kernel_write_iter+0x2f6/0x740 fs/read_write.c:517 __kernel_write+0x119/0x170 fs/read_write.c:537 __dump_emit fs/coredump.c:804 [inline] dump_emit+0x97f/0xb50 fs/coredump.c:874 elf_core_dump+0x2fd1/0x4120 fs/binfmt_elf.c:2264 do_coredump+0x17eb/0x2800 fs/coredump.c:755 get_signal+0x1431/0x17b0 kernel/signal.c:2844 arch_do_signal_or_restart+0x7b/0x730 arch/x86/kernel/signal.c:869 exit_to_user_mode_loop+0x74/0x150 kernel/entry/common.c:168 exit_to_user_mode_prepare+0xb2/0x140 kernel/entry/common.c:203 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x26/0x60 kernel/entry/common.c:296 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f27eca8b5a9 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f27ed78c168 EFLAGS: 00000246 ORIG_RAX: 000000000000004c RAX: ffffffffffffffe5 RBX: 00007f27ecbabf80 RCX: 00007f27eca8b5a9 RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000020000300 RBP: 00007f27ecae67b0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc4a223bef R14: 00007f27ed78c300 R15: 0000000000022000 ================================================================================