AnonymeMeowandJan Kara 82c6dd2047 fanotify: allow reporting pidfds for reaped tasks ...

Fanotify used to refuse to report pidfds for reaped tasks by applying a
pid_has_task() check before calling pidfd_prepare(). This prevented
userspace from obtaining information about the task.

Register the event pid with pidfs when creating the fanotify event if
pidfd reporting was requested, so pidfd_prepare() can later create a
pidfd for the reaped task.

Suggested-by: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/linux-fsdevel/20260528-schmuckvoll-heilen-garen-be77b4208671@brauner/
Signed-off-by: AnonymeMeow <anonymemeow@gmail.com>
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
Link: https://patch.msgid.link/20260607003343.425939-3-anonymemeow@gmail.com
Signed-off-by: Jan Kara <jack@suse.cz>

2026-06-10 11:08:23 +02:00

..

fanotify_user.c

fanotify: allow reporting pidfds for reaped tasks

2026-06-10 11:08:23 +02:00

fanotify.c

fanotify: allow reporting pidfds for reaped tasks

2026-06-10 11:08:23 +02:00

fanotify.h

fanotify: replace deprecated strcpy in fanotify_info_copy_{name,name2}

2026-03-23 10:10:59 +01:00

Kconfig

fsnotify, lsm: Decouple fsnotify from lsm

2024-10-14 17:38:27 +02:00

Makefile

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