[patch 39/42] nfsd: fix buffer overrun decoding NFSv4 acl

[Greg KH]

2.6.26-stable review patch.  If anyone has any objections, please let us know.

------------------

From: J. Bruce Fields <bfields@xxxxxxxxxxxxxx>

commit 91b80969ba466ba4b915a4a1d03add8c297add3f upstream

The array we kmalloc() here is not large enough.

Thanks to Johann Dahm and David Richter for bug report and testing.

Signed-off-by: J. Bruce Fields <bfields@xxxxxxxxxxxxxx>
Cc: David Richter <richterd@xxxxxxxxxxxxxx>
Tested-by: Johann Dahm <jdahm@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
 fs/nfsd/nfs4acl.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/nfsd/nfs4acl.c
+++ b/fs/nfsd/nfs4acl.c
@@ -443,7 +443,7 @@ init_state(struct posix_acl_state *state
 	 * enough space for either:
 	 */
 	alloc = sizeof(struct posix_ace_state_array)
-		+ cnt*sizeof(struct posix_ace_state);
+		+ cnt*sizeof(struct posix_user_ace_state);
 	state->users = kzalloc(alloc, GFP_KERNEL);
 	if (!state->users)
 		return -ENOMEM;

-- 
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