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Xi Wang 1ecd3c7ea7 nilfs2: avoid overflowing segment numbers in nilfs_ioctl_clean_segments() 
nsegs is read from userspace.  Limit its value and avoid overflowing nsegs
* sizeof(__u64) in the subsequent call to memdup_user().

This patch complements 481fe17e97 ("nilfs2: potential integer overflow
in nilfs_ioctl_clean_segments()").

Signed-off-by: Xi Wang <xi.wang@gmail.com>
Cc: Haogang Chen <haogangchen@gmail.com>
Acked-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2012-02-08 19:03:51 -08:00
..
Kconfig
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Makefile
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alloc.c nilfs2: use mark_buffer_dirty to mark btnode or meta data dirty 2011-05-10 22:21:57 +09:00
alloc.h
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bmap.c nilfs2: get rid of NILFS_I_NILFS 2011-05-10 22:21:56 +09:00
bmap.h
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btnode.c nilfs2: use mark_buffer_dirty to mark btnode or meta data dirty 2011-05-10 22:21:57 +09:00
btnode.h nilfs2: use mark_buffer_dirty to mark btnode or meta data dirty 2011-05-10 22:21:57 +09:00
btree.c nilfs2: fix missing block address termination in btree node shrinking 2011-06-11 15:51:15 +09:00
btree.h
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cpfile.c nilfs2: use mark_buffer_dirty to mark btnode or meta data dirty 2011-05-10 22:21:57 +09:00
cpfile.h
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dat.c nilfs2: use mark_buffer_dirty to mark btnode or meta data dirty 2011-05-10 22:21:57 +09:00
dat.h
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dir.c nilfs: propagate umode_t 2012-01-03 22:55:04 -05:00
direct.c
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direct.h
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export.h
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file.c fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers 2011-07-20 20:47:59 -04:00
gcinode.c nilfs2: use mark_buffer_dirty to mark btnode or meta data dirty 2011-05-10 22:21:57 +09:00
ifile.c nilfs2: use mark_buffer_dirty to mark btnode or meta data dirty 2011-05-10 22:21:57 +09:00
ifile.h
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inode.c nilfs: propagate umode_t 2012-01-03 22:55:04 -05:00
ioctl.c nilfs2: avoid overflowing segment numbers in nilfs_ioctl_clean_segments() 2012-02-08 19:03:51 -08:00
mdt.c nilfs2: use mark_buffer_dirty to mark btnode or meta data dirty 2011-05-10 22:21:57 +09:00
mdt.h nilfs2: use mark_buffer_dirty to mark btnode or meta data dirty 2011-05-10 22:21:57 +09:00
namei.c switch ->mknod() to umode_t 2012-01-03 22:54:54 -05:00
nilfs.h nilfs: propagate umode_t 2012-01-03 22:55:04 -05:00
page.c nilfs2: use mark_buffer_dirty to mark btnode or meta data dirty 2011-05-10 22:21:57 +09:00
page.h nilfs2: use mark_buffer_dirty to mark btnode or meta data dirty 2011-05-10 22:21:57 +09:00
recovery.c nilfs2: use list_first_entry 2011-05-10 22:21:56 +09:00
segbuf.c
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segbuf.h
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segment.c freezer: unexport refrigerator() and update try_to_freeze() slightly 2011-11-21 12:32:22 -08:00
segment.h
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sufile.c nilfs2: use mark_buffer_dirty to mark btnode or meta data dirty 2011-05-10 22:21:57 +09:00
sufile.h nilfs2: get rid of NILFS_I_NILFS 2011-05-10 22:21:56 +09:00
super.c vfs: switch ->show_options() to struct dentry * 2012-01-06 23:19:54 -05:00
the_nilfs.c nilfs2: implement resize ioctl 2011-05-10 22:21:46 +09:00
the_nilfs.h nilfs2: implement resize ioctl 2011-05-10 22:21:46 +09:00