Dear strace developers, We are creating a Linux distribution focused on reliability, security, and speed using the musl libc and a special version of fortify-headers created for that libc. This fortification has caused an illegal memcpy in the test suite, in nlattr.c: on 64-bit platforms, 'unsigned int' can be 64-bits, while nlhdrmsg's msg_len is a __u32 in linux/netlink.h.
The attached patch fixes this by declaring msg_len as uint32_t instead of unsigned int. Best, --arw -- A. Wilcox (awilfox) Project Lead, Adélie Linux http://adelielinux.org
--- strace-4.18/tests/nlattr.c.old 2017-07-05 07:08:09.000000000 +0000
+++ strace-4.18/tests/nlattr.c 2017-08-17 00:25:26.734218699 +0000
@@ -61,7 +61,7 @@
};
struct msg *msg;
struct nlattr *nla;
- unsigned int msg_len;
+ uint32_t msg_len;
long rc;
/* fetch fail: len < sizeof(struct nlattr) */
@@ -259,7 +259,7 @@
};
struct msg *msg;
struct nlattr *nla;
- unsigned int msg_len;
+ uint32_t msg_len;
long rc;
msg_len = NLMSG_SPACE(sizeof(msg->udm)) + sizeof(*nla);
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