diff options
| author | Luxiao Xu <rakukuip@gmail.com> | 2026-04-08 15:12:42 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-04-09 04:44:33 +0300 |
| commit | f125846ee79fcae537a964ce66494e96fa54a6de (patch) | |
| tree | 50205b14e6ae23e7b53b7bd2d9e726be9d9f3814 /net | |
| parent | a2567217ade970ecc458144b6be469bc015b23e5 (diff) | |
| download | linux-f125846ee79fcae537a964ce66494e96fa54a6de.tar.xz | |
rxrpc: fix reference count leak in rxrpc_server_keyring()
This patch fixes a reference count leak in rxrpc_server_keyring()
by checking if rx->securities is already set.
Fixes: 17926a79320a ("[AF_RXRPC]: Provide secure RxRPC sockets for use by userspace and kernel both")
Reported-by: Yifan Wu <yifanwucs@gmail.com>
Reported-by: Juefei Pu <tomapufckgml@gmail.com>
Co-developed-by: Yuan Tan <yuantan098@gmail.com>
Signed-off-by: Yuan Tan <yuantan098@gmail.com>
Suggested-by: Xin Liu <bird@lzu.edu.cn>
Tested-by: Ren Wei <enjou1224z@gmail.com>
Signed-off-by: Luxiao Xu <rakukuip@gmail.com>
Signed-off-by: Ren Wei <n05ec@lzu.edu.cn>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: Simon Horman <horms@kernel.org>
cc: linux-afs@lists.infradead.org
cc: stable@kernel.org
Link: https://patch.msgid.link/20260408121252.2249051-15-dhowells@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/rxrpc/server_key.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/rxrpc/server_key.c b/net/rxrpc/server_key.c index 36b05fd842a7..27491f1e1273 100644 --- a/net/rxrpc/server_key.c +++ b/net/rxrpc/server_key.c @@ -125,6 +125,9 @@ int rxrpc_server_keyring(struct rxrpc_sock *rx, sockptr_t optval, int optlen) _enter(""); + if (rx->securities) + return -EINVAL; + if (optlen <= 0 || optlen > PAGE_SIZE - 1) return -EINVAL; |