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use use SEEK_MAX to validate user lseek arguments

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Add SEEK_MAX and use it to validate lseek arguments from userspace.

Signed-off-by: Chris Snook <csnook@redhat.com>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Chris Snook
2007-05-08 00:24:15 -07:00
committed by Linus Torvalds
parent 7b8e89249b
commit 1ae7075bcd
2 changed files with 3 additions and 2 deletions
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include/linux/fs.h
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@@ -30,6 +30,7 @@
#define SEEK_SET 0 /* seek relative to beginning of file */
#define SEEK_CUR 1 /* seek relative to current file position */
#define SEEK_END 2 /* seek relative to end of file */
#define SEEK_MAX SEEK_END
/* And dynamically-tunable limits and defaults: */
struct files_stat_struct {