From 125ac66c648b2c901c9d7c0a7bcef7929b85be63 Mon Sep 17 00:00:00 2001 From: Ian Moffett Date: Fri, 18 Jul 2025 02:54:43 -0400 Subject: usr: nerve: Ensure nerve packet does not overflow Signed-off-by: Ian Moffett --- usr.bin/nerve/nerve.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'usr.bin/nerve') diff --git a/usr.bin/nerve/nerve.c b/usr.bin/nerve/nerve.c index 21deb09..a7d39d8 100644 --- a/usr.bin/nerve/nerve.c +++ b/usr.bin/nerve/nerve.c @@ -139,6 +139,10 @@ get_nerve_payload(int argc, char *argv[], struct nerve_payload *res) /* Start grabbing bytes */ for (int i = 3; i < argc; ++i) { + if (res->len >= NERVE_PACKET_LEN) { + printf("[*] truncated packet\n"); + break; + } payload_str = argv[i]; datum = atoi(payload_str); res->packet[res->len++] = datum; -- cgit v1.2.3