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BUG: KASAN: null-ptr-deref in instrument_atomic_read include/linux/instrumented.h:68 [inline]
BUG: KASAN: null-ptr-deref in _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
BUG: KASAN: null-ptr-deref in set_buffer_uptodate include/linux/buffer_head.h:149 [inline]
BUG: KASAN: null-ptr-deref in do_journal_end+0x160c/0x4b40 fs/reiserfs/journal.c:4080
Read of size 8 at addr 0000000000000000 by task syz-executor.1/14677

CPU: 0 PID: 14677 Comm: syz-executor.1 Not tainted 6.7.0-rc5-syzkaller-00125-gc7402612e2e6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
 print_report+0xe6/0x540 mm/kasan/report.c:478
 kasan_report+0x142/0x170 mm/kasan/report.c:588
 kasan_check_range+0x27e/0x290 mm/kasan/generic.c:187
 instrument_atomic_read include/linux/instrumented.h:68 [inline]
 _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
 set_buffer_uptodate include/linux/buffer_head.h:149 [inline]
 do_journal_end+0x160c/0x4b40 fs/reiserfs/journal.c:4080
 do_journal_release+0x47c/0x4d0 fs/reiserfs/journal.c:1939
 journal_release+0x1f/0x30 fs/reiserfs/journal.c:1970
 reiserfs_put_super+0x23b/0x4c0 fs/reiserfs/super.c:616
 generic_shutdown_super+0x13a/0x2c0 fs/super.c:696
 kill_block_super+0x44/0x90 fs/super.c:1667
 deactivate_locked_super+0xc1/0x130 fs/super.c:484
 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1256
 task_work_run+0x24a/0x300 kernel/task_work.c:180
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0xa34/0x2750 kernel/exit.c:871
 do_group_exit+0x206/0x2c0 kernel/exit.c:1021
 get_signal+0x1769/0x1840 kernel/signal.c:2904
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:309
 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:168
 exit_to_user_mode_prepare+0xb1/0x150 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x69/0x2a0 kernel/entry/common.c:296
 do_syscall_64+0x52/0x110 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7ff6c5a7cba9
Code: Unable to access opcode bytes at 0x7ff6c5a7cb7f.
RSP: 002b:00007ff6c45fe0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: fffffffffffffffb RBX: 00007ff6c5b9bf80 RCX: 00007ff6c5a7cba9
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000020000000
RBP: 00007ff6c5ac847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007ff6c5b9bf80 R15: 00007ffd5e7434b8
 </TASK>
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