ecryptfs: forbid opening files without mmap handler

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commit 2f36db7100 upstream.

This prevents users from triggering a stack overflow through a recursive
invocation of pagefault handling that involves mapping procfs files into
virtual memory.

Signed-off-by: Jann Horn <jannh@google.com>
Acked-by: Tyler Hicks <tyhicks@canonical.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Jann Horn 2016-06-01 11:55:06 +02:00 • committed by Greg Kroah-Hartman

parent d3f97524ef

commit dea2cf7c0c

1 changed files with 11 additions and 2 deletions

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fs/ecryptfs/kthread.c

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