From: Dmitry V. Levin <ldv@altlinux.org>
Date: Sat, 8 Jul 2017 14:57:44 +0000 (+0000)
Subject: net: accept large option length for SO_LINGER
X-Git-Tag: v4.19~318
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=2ccd8867067d4c6109d5aa18c37e85ffbe4a193f;p=strace

net: accept large option length for SO_LINGER

* net.c (print_linger): Allow len > sizeof(struct linger) to match
the kernel behaviour.
---

diff --git a/net.c b/net.c
index 273edda0..5e20abc6 100644
--- a/net.c
+++ b/net.c
@@ -489,11 +489,12 @@ print_sockopt_fd_level_name(struct tcb *tcp, int fd, unsigned int level,
 }
 
 static void
-print_linger(struct tcb *const tcp, const kernel_ulong_t addr, const int len)
+print_linger(struct tcb *const tcp, const kernel_ulong_t addr,
+	     const unsigned int len)
 {
 	struct linger linger;
 
-	if (len != sizeof(linger) ||
+	if (len < sizeof(linger) ||
 	    umove(tcp, addr, &linger) < 0) {
 		printaddr(addr);
 		return;