| commit | 9a2458a633d4b3c9e0eae506da40cf44dc075314 | |
| author | Rasmus Villemoes <linux@rasmusvillemoes.dk> | |
| Mon, 8 Jul 2013 22:59:48 +0000 (8 15:59 -0700) | ||
| committer | Linus Torvalds <torvalds@linux-foundation.org> | |
| Tue, 9 Jul 2013 17:33:20 +0000 (9 10:33 -0700) | ||
| tree | 6212adc65070486edc212587c8f3a16452d810ec | treesnapshot (tar.gz zip) |
| parent | 34e3a58c66aafd90cc16c061569fbefc3ff451e9 | commitdiff |
mm: mremap: validate input before taking lock
This patch is very similar to commit 84d96d897671 ("mm: madvise:
complete input validation before taking lock"): perform some basic
validation of the input to mremap() before taking the
¤t->mm->mmap_sem lock.
This also makes the MREMAP_FIXED => MREMAP_MAYMOVE dependency slightly
more explicit.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch is very similar to commit 84d96d897671 ("mm: madvise:
complete input validation before taking lock"): perform some basic
validation of the input to mremap() before taking the
¤t->mm->mmap_sem lock.
This also makes the MREMAP_FIXED => MREMAP_MAYMOVE dependency slightly
more explicit.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| mm/mremap.c | diffblobblamehistory |