================================================================================ UBSAN: array-index-out-of-bounds in fs/reiserfs/journal.c:4166:5 index 1 is out of range for type '__le32[1]' (aka 'unsigned int[1]') CPU: 1 PID: 5348 Comm: syz-executor.2 Not tainted 6.4.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 ubsan_epilogue lib/ubsan.c:217 [inline] __ubsan_handle_out_of_bounds+0x11c/0x150 lib/ubsan.c:348 do_journal_end+0x2096/0x4780 fs/reiserfs/journal.c:4166 reiserfs_sync_fs+0xce/0x150 fs/reiserfs/super.c:78 sync_filesystem+0xec/0x220 fs/sync.c:56 generic_shutdown_super+0x6f/0x340 fs/super.c:472 kill_block_super+0x68/0xa0 fs/super.c:1417 deactivate_locked_super+0xa4/0x110 fs/super.c:330 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1254 task_work_run+0x24a/0x300 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xd9/0x100 kernel/entry/common.c:171 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:297 do_syscall_64+0x4d/0x90 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f4abd88d7f7 Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 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:00007ffe82dad998 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f4abd88d7f7 RDX: 00007ffe82dada69 RSI: 000000000000000a RDI: 00007ffe82dada60 RBP: 00007ffe82dada60 R08: 00000000ffffffff R09: 00007ffe82dad830 R10: 0000555556571893 R11: 0000000000000246 R12: 00007f4abd8d643b R13: 00007ffe82daeb20 R14: 0000555556571810 R15: 00007ffe82daeb60 ================================================================================