Al Viro d5c20298b6 hpfs: deadlock and race in directory lseek() ... commit 31abdab9c1 upstream. For one thing, there's an ABBA deadlock on hpfs fs-wide lock and i_mutex in hpfs_dir_lseek() - there's a lot of methods that grab the former with the caller already holding the latter, so it must take i_mutex first. For another, locking the damn thing, carefully validating the offset, then dropping locks and assigning the offset is obviously racy. Moreover, we _must_ do hpfs_add_pos(), or the machinery in dnode.c won't modify the sucker on B-tree surgeries. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Cc: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2014-02-13 11:51:18 -08:00
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alloc.c
anode.c
buffer.c
dentry.c
dir.c	hpfs: deadlock and race in directory lseek()	2014-02-13 11:51:18 -08:00
dnode.c
ea.c
file.c	hpfs: fix warnings when the filesystem fills up	2013-12-20 07:34:21 -08:00
hpfs.h
hpfs_fn.h
inode.c
Kconfig
Makefile
map.c	hpfs: better test for errors	2013-07-13 11:03:40 -07:00
name.c
namei.c
super.c	hpfs: better test for errors	2013-07-13 11:03:40 -07:00