mirror of
https://github.com/torvalds/linux
synced 2024-09-06 09:51:23 +00:00
[NET]: Make sure ctl buffer is aligned properly in sys_sendmsg().
It's on the stack and declared as "unsigned char[]", but pointers and similar can be in here thus we need to give it an explicit alignment attribute. Signed-off-by: Alex Williamson <alex.williamson@hp.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
8ddec7460d
commit
b9d717a7b4
|
@ -1700,7 +1700,9 @@ asmlinkage long sys_sendmsg(int fd, struct msghdr __user *msg, unsigned flags)
|
|||
struct socket *sock;
|
||||
char address[MAX_SOCK_ADDR];
|
||||
struct iovec iovstack[UIO_FASTIOV], *iov = iovstack;
|
||||
unsigned char ctl[sizeof(struct cmsghdr) + 20]; /* 20 is size of ipv6_pktinfo */
|
||||
unsigned char ctl[sizeof(struct cmsghdr) + 20]
|
||||
__attribute__ ((aligned (sizeof(__kernel_size_t))));
|
||||
/* 20 is size of ipv6_pktinfo */
|
||||
unsigned char *ctl_buf = ctl;
|
||||
struct msghdr msg_sys;
|
||||
int err, ctl_len, iov_size, total_len;
|
||||
|
|
Loading…
Reference in a new issue