From: David Howells <dhowells@redhat.com>
To: linux-afs@lists.infradead.org
Cc: Colin Ian King <colin.king@canonical.com>,
Joe Perches <joe@perches.com>,
dhowells@redhat.com, linux-kernel@vger.kernel.org
Subject: [PATCH 02/15] afs: Fix incorrect error handling in afs_xattr_get_acl()
Date: Wed, 15 May 2019 17:25:51 +0100 [thread overview]
Message-ID: <155793755188.31671.13175909085892285666.stgit@warthog.procyon.org.uk> (raw)
In-Reply-To: <155793753724.31671.7034451837854752319.stgit@warthog.procyon.org.uk>
Fix incorrect error handling in afs_xattr_get_acl() where there appears to
be a redundant assignment before return, but in fact the return should be a
goto to the error handling at the end of the function.
Fixes: 260f082bae6d ("afs: Get an AFS3 ACL as an xattr")
Addresses-Coverity: ("Unused Value")
Reported-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Joe Perches <joe@perches.com>
---
fs/afs/xattr.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/fs/afs/xattr.c b/fs/afs/xattr.c
index c81f85003fc7..b6c44e75b361 100644
--- a/fs/afs/xattr.c
+++ b/fs/afs/xattr.c
@@ -71,11 +71,10 @@ static int afs_xattr_get_acl(const struct xattr_handler *handler,
if (ret == 0) {
ret = acl->size;
if (size > 0) {
- ret = -ERANGE;
- if (acl->size > size)
- return -ERANGE;
- memcpy(buffer, acl->data, acl->size);
- ret = acl->size;
+ if (acl->size <= size)
+ memcpy(buffer, acl->data, acl->size);
+ else
+ ret = -ERANGE;
}
kfree(acl);
}
next prev parent reply other threads:[~2019-05-15 16:25 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-15 16:25 [PATCH 00/15] AFS fixes David Howells
2019-05-15 16:25 ` [PATCH 01/15] afs: Fix key leak in afs_release() and afs_evict_inode() David Howells
2019-05-15 16:25 ` David Howells [this message]
2019-05-15 16:26 ` [PATCH 03/15] afs: Fix afs_xattr_get_yfs() to not try freeing an error value David Howells
2019-05-15 16:26 ` [PATCH 04/15] afs: Fix missing lock when replacing VL server list David Howells
2019-05-15 16:26 ` [PATCH 05/15] afs: Fix afs_cell records to always have a VL server list record David Howells
2019-05-15 16:26 ` [PATCH 06/15] dns_resolver: Allow used keys to be invalidated David Howells
2019-05-15 16:26 ` [PATCH 07/15] Add wait_var_event_interruptible() David Howells
2019-05-15 17:30 ` Peter Zijlstra
2019-05-15 16:26 ` [PATCH 08/15] afs: Fix cell DNS lookup David Howells
2019-05-15 16:26 ` [PATCH 09/15] rxrpc: Allow the kernel to mark a call as being non-interruptible David Howells
2019-05-15 16:26 ` [PATCH 10/15] afs: Make some RPC operations non-interruptible David Howells
2019-05-15 16:26 ` [PATCH 11/15] afs: Make dynamic root population wait uninterruptibly for proc_cells_lock David Howells
2019-05-15 16:27 ` [PATCH 12/15] afs: Fix calculation of callback expiry time David Howells
2019-05-15 16:27 ` [PATCH 13/15] afs: Don't invalidate callback if AFS_VNODE_DIR_VALID not set David Howells
2019-05-15 16:27 ` [PATCH 14/15] afs: Fix lock-wait/callback-break double locking David Howells
2019-05-15 16:27 ` [PATCH 15/15] afs: Fix double inc of vnode->cb_break David Howells
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