Files
linux/include/linux
Eric Biggers 96e99be40e pipe: reject F_SETPIPE_SZ with size over UINT_MAX
A pipe's size is represented as an 'unsigned int'.  As expected, writing a
value greater than UINT_MAX to /proc/sys/fs/pipe-max-size fails with
EINVAL.  However, the F_SETPIPE_SZ fcntl silently truncates such values to
32 bits, rather than failing with EINVAL as expected.  (It *does* fail
with EINVAL for values above (1 << 31) but <= UINT_MAX.)

Fix this by moving the check against UINT_MAX into round_pipe_size() which
is called in both cases.

Link: http://lkml.kernel.org/r/20180111052902.14409-6-ebiggers3@gmail.com
Signed-off-by: Eric Biggers <ebiggers@google.com>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Joe Lawrence <joe.lawrence@redhat.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: "Luis R . Rodriguez" <mcgrof@kernel.org>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Mikulas Patocka <mpatocka@redhat.com>
Cc: Willy Tarreau <w@1wt.eu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-02-06 18:32:47 -08:00
..
2017-11-28 16:30:38 +01:00
2018-01-01 22:54:42 -08:00
2018-01-02 13:59:16 -05:00
2017-11-30 16:55:35 +00:00
2017-06-08 18:52:36 -07:00
2018-02-06 18:32:44 -08:00
2017-11-15 18:21:04 -08:00
2017-12-19 16:35:34 -08:00
2018-01-03 14:03:48 +01:00
2017-08-24 13:23:03 -07:00
2016-10-28 08:48:16 -06:00
2017-11-27 16:19:56 -05:00
2017-07-17 13:42:48 +02:00
2018-01-01 12:40:27 -07:00
2018-01-25 14:10:39 -08:00
2017-08-07 17:22:14 +02:00
2017-11-13 01:41:20 +01:00
2017-11-15 18:21:06 -08:00
2017-03-21 10:15:47 +02:00
2018-01-16 00:04:19 +01:00
2017-06-21 14:37:12 -04:00
2018-01-17 11:30:16 +00:00
2017-11-15 18:21:05 -08:00
2017-12-29 21:13:04 +01:00
2017-11-17 16:10:04 -08:00
2017-10-12 15:41:05 +02:00
2017-11-15 18:21:01 -08:00
2017-12-01 13:09:40 -08:00
2017-10-07 10:45:02 -06:00
2017-02-24 17:46:57 -08:00
2017-08-28 20:51:22 +02:00
2018-01-03 11:00:22 -05:00
2018-01-31 17:18:38 -08:00
2018-01-31 17:18:37 -08:00
2017-11-17 16:10:00 -08:00
2018-01-28 22:17:24 -05:00
2017-07-25 18:05:25 +02:00
2018-01-08 08:22:45 -06:00
2018-01-08 08:22:45 -06:00
2017-12-14 16:00:49 -08:00
2018-01-31 17:18:40 -08:00
2017-11-15 18:21:06 -08:00
2018-01-31 17:18:37 -08:00
2017-11-09 10:23:28 +01:00
2017-11-17 16:10:04 -08:00
2017-11-17 16:10:04 -08:00
2017-11-13 01:33:48 +01:00
2017-12-16 02:05:48 +01:00
2017-11-27 16:19:55 -05:00
2017-12-11 14:37:11 -07:00
2017-11-29 22:16:31 +01:00
2017-11-07 12:22:21 +01:00
2017-11-27 16:19:55 -05:00
2017-07-06 16:24:30 -07:00
2018-01-29 12:02:54 -05:00
2018-01-18 11:56:49 +01:00
2018-01-15 12:07:46 -08:00
2018-01-15 09:35:45 +01:00
2018-02-06 18:32:47 -08:00
2018-01-09 16:27:43 +01:00
2017-10-11 22:36:54 -04:00
2018-02-06 18:32:44 -08:00
2017-12-20 09:53:54 -07:00
2017-10-04 10:29:22 +02:00
2017-11-27 16:19:54 -05:00
2017-08-15 09:02:07 -07:00
2017-08-15 09:02:08 -07:00