From bc8628f7655a6da47a9f3e3654ace766a8f6cb1c Mon Sep 17 00:00:00 2001 From: Marios Makassikis Date: Fri, 4 Nov 2022 15:06:26 +0100 Subject: [PATCH 09/17] ksmbd-tools: ipc: don't allocate msg larger than KSMBD_IPC_MAX_MESSAGE_SIZE Signed-off-by: Marios Makassikis --- mountd/ipc.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/mountd/ipc.c b/mountd/ipc.c index 9f7411df1631..9d4c1ca7a1ca 100644 --- a/mountd/ipc.c +++ b/mountd/ipc.c @@ -31,8 +31,10 @@ struct ksmbd_ipc_msg *ipc_msg_alloc(size_t sz) struct ksmbd_ipc_msg *msg; size_t msg_sz = sz + sizeof(struct ksmbd_ipc_msg) + 1; - if (msg_sz > KSMBD_IPC_MAX_MESSAGE_SIZE) + if (msg_sz > KSMBD_IPC_MAX_MESSAGE_SIZE) { pr_err("IPC message is too large: %zu\n", msg_sz); + return NULL; + } msg = g_try_malloc0(msg_sz); if (msg) -- 2.25.1