syzbot

loop5: detected capacity change from 0 to 40427
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BUG: KMSAN: uninit-value in fsnotify_iter_select_report_types fs/notify/fsnotify.c:468 [inline]
BUG: KMSAN: uninit-value in fsnotify+0x1178/0x3f50 fs/notify/fsnotify.c:640
 fsnotify_iter_select_report_types fs/notify/fsnotify.c:468 [inline]
 fsnotify+0x1178/0x3f50 fs/notify/fsnotify.c:640
 __fsnotify_parent+0x8b2/0x9c0 fs/notify/fsnotify.c:287
 fsnotify_parent include/linux/fsnotify.h:96 [inline]
 fsnotify_path include/linux/fsnotify.h:113 [inline]
 fsnotify_file include/linux/fsnotify.h:127 [inline]
 fsnotify_close include/linux/fsnotify.h:457 [inline]
 __fput+0x490/0x1040 fs/file_table.c:454
 fput_close_sync+0xbc/0x210 fs/file_table.c:573
 __do_sys_close fs/open.c:1587 [inline]
 __se_sys_close fs/open.c:1572 [inline]
 __x64_sys_close+0xf0/0x2c0 fs/open.c:1572
 x64_sys_call+0x2eb2/0x3e20 arch/x86/include/generated/asm/syscalls_64.h:4
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was stored to memory at:
 fsnotify_iter_select_report_types fs/notify/fsnotify.c:466 [inline]
 fsnotify+0x1171/0x3f50 fs/notify/fsnotify.c:640
 __fsnotify_parent+0x8b2/0x9c0 fs/notify/fsnotify.c:287
 fsnotify_parent include/linux/fsnotify.h:96 [inline]
 fsnotify_path include/linux/fsnotify.h:113 [inline]
 fsnotify_file include/linux/fsnotify.h:127 [inline]
 fsnotify_close include/linux/fsnotify.h:457 [inline]
 __fput+0x490/0x1040 fs/file_table.c:454
 fput_close_sync+0xbc/0x210 fs/file_table.c:573
 __do_sys_close fs/open.c:1587 [inline]
 __se_sys_close fs/open.c:1572 [inline]
 __x64_sys_close+0xf0/0x2c0 fs/open.c:1572
 x64_sys_call+0x2eb2/0x3e20 arch/x86/include/generated/asm/syscalls_64.h:4
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was stored to memory at:
 fsnotify+0x3d14/0x3f50 fs/notify/fsnotify.c:623
 __fsnotify_parent+0x8b2/0x9c0 fs/notify/fsnotify.c:287
 fsnotify_parent include/linux/fsnotify.h:96 [inline]
 fsnotify_path include/linux/fsnotify.h:113 [inline]
 fsnotify_file include/linux/fsnotify.h:127 [inline]
 fsnotify_close include/linux/fsnotify.h:457 [inline]
 __fput+0x490/0x1040 fs/file_table.c:454
 fput_close_sync+0xbc/0x210 fs/file_table.c:573
 __do_sys_close fs/open.c:1587 [inline]
 __se_sys_close fs/open.c:1572 [inline]
 __x64_sys_close+0xf0/0x2c0 fs/open.c:1572
 x64_sys_call+0x2eb2/0x3e20 arch/x86/include/generated/asm/syscalls_64.h:4
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was created at:
 slab_post_alloc_hook mm/slub.c:4186 [inline]
 slab_alloc_node mm/slub.c:4229 [inline]
 kmem_cache_alloc_noprof+0x81b/0xec0 mm/slub.c:4236
 fsnotify_attach_connector_to_object fs/notify/mark.c:663 [inline]
 fsnotify_add_mark_list fs/notify/mark.c:746 [inline]
 fsnotify_add_mark_locked+0x862/0x1a90 fs/notify/mark.c:821
 fsnotify_add_inode_mark_locked include/linux/fsnotify_backend.h:888 [inline]
 inotify_new_watch fs/notify/inotify/inotify_user.c:620 [inline]
 inotify_update_watch fs/notify/inotify/inotify_user.c:647 [inline]
 __do_sys_inotify_add_watch fs/notify/inotify/inotify_user.c:781 [inline]
 __se_sys_inotify_add_watch+0x129c/0x1760 fs/notify/inotify/inotify_user.c:729
 __x64_sys_inotify_add_watch+0x97/0xe0 fs/notify/inotify/inotify_user.c:729
 x64_sys_call+0x12b8/0x3e20 arch/x86/include/generated/asm/syscalls_64.h:255
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

CPU: 1 UID: 0 PID: 8136 Comm: syz.5.527 Not tainted syzkaller #0 PREEMPT(none) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
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