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linux-stable/fs/tracefs
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Steven Rostedt (Google) 2598bd3ca8 eventfs: Test for dentries array allocated in eventfs_release() 
The dcache_dir_open_wrapper() could be called when a dynamic event is
being deleted leaving a dentry with no children. In this case the
dlist->dentries array will never be allocated. This needs to be checked
for in eventfs_release(), otherwise it will trigger a NULL pointer
dereference.

Link: https://lore.kernel.org/linux-trace-kernel/20230930090106.1c3164e9@rorschach.local.home

Cc: Mark Rutland <mark.rutland@arm.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Fixes: ef36b4f928 ("eventfs: Remember what dentries were created on dir open")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
 		2023-09-30 16:26:04 -04:00
..
Makefile eventfs: Implement eventfs dir creation functions 2023-07-30 18:13:33 -04:00
event_inode.c eventfs: Test for dentries array allocated in eventfs_release() 2023-09-30 16:26:04 -04:00
inode.c tracefs/eventfs: Use dput to free the toplevel events directory 2023-09-07 16:04:47 -04:00
internal.h tracefs/eventfs: Use dput to free the toplevel events directory 2023-09-07 16:04:47 -04:00