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LU-12613 ptlrpc: check buffer length in lustre_msg_string()
[fs/lustre-release.git]
/
lustre
/
ptlrpc
/
pack_generic.c
diff --git
a/lustre/ptlrpc/pack_generic.c
b/lustre/ptlrpc/pack_generic.c
index
f59e47b
..
3c4c3a0
100644
(file)
--- a/
lustre/ptlrpc/pack_generic.c
+++ b/
lustre/ptlrpc/pack_generic.c
@@
-762,6
+762,11
@@
char *lustre_msg_string(struct lustre_msg *m, __u32 index, __u32 max_len)
"msg %p buffer[%d] len %d\n", m, index, blen);
return NULL;
}
+ if (blen > PTLRPC_MAX_BUFLEN) {
+ CERROR("buffer length of msg %p buffer[%d] is invalid(%d)\n",
+ m, index, blen);
+ return NULL;
+ }
if (max_len == 0) {
if (slen != blen - 1) {