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authorRoel Kluin <roel.kluin@gmail.com>2009-09-22 16:45:54 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-09-23 07:39:42 -0700
commitc5df59136a55fe08c21d39321679cbb008479edf (patch)
tree1ee4e37aba1555f5558e0eb43d5f7093bc82af98
parenta7e3108cca54c105f496919040f00df56767ec00 (diff)
ncpfs: read buffer overflow
This function uses signed integers for the unix_date and local variables - if a negative number is supplied and the leap-year condition is not met, month will be 0, leading to a later read of day_n[-1] Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Cc: Petr Vandrovec <VANDROVE@vc.cvut.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--fs/ncpfs/dir.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ncpfs/dir.c b/fs/ncpfs/dir.c
index 9c590722d87..b8b5b30d53f 100644
--- a/fs/ncpfs/dir.c
+++ b/fs/ncpfs/dir.c
@@ -1241,7 +1241,7 @@ ncp_date_unix2dos(int unix_date, __le16 *time, __le16 *date)
month = 2;
} else {
nl_day = (year & 3) || day <= 59 ? day : day - 1;
- for (month = 0; month < 12; month++)
+ for (month = 1; month < 12; month++)
if (day_n[month] > nl_day)
break;
}