mirror of
git://sourceware.org/git/glibc.git
synced 2024-12-21 04:31:04 +08:00
4b2e40a925
If glibc is build with -O3 on at least 390 (-m31) or x86 (-m32),
gcc 11 dumps this warning:
svc_tcp.c: In function 'rendezvous_request':
svc_tcp.c:274:3: error: 'memcpy' offset [0, 15] is out of the bounds [0, 0] [-Werror=array-bounds]
274 | memcpy (&xprt->xp_raddr, &addr, sizeof (addr));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
In out-of-memory case, if one of the mallocs in makefd_xprt function
returns NULL, a message is dumped, makefd_xprt returns NULL
and the subsequent memcpy would copy to NULL.
Instead of a segfaulting, we delay a bit (see also __svc_accept_failed
and Bug 14889 (CVE-2011-4609) - svc_run() produces high cpu usage when
accept() fails with EMFILE (CVE-2011-4609).
The same applies to svc_unix.c.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
#ifndef _RPC_SVC_H
|
|
#include <sunrpc/rpc/svc.h>
|
|
|
|
# ifndef _ISOMAC
|
|
|
|
libc_hidden_proto (xprt_register)
|
|
libc_hidden_proto (xprt_unregister)
|
|
libc_hidden_proto (svc_register)
|
|
libc_hidden_proto (svc_unregister)
|
|
libc_hidden_proto (svcerr_auth)
|
|
libc_hidden_proto (svcerr_noprog)
|
|
libc_hidden_proto (svcerr_progvers)
|
|
|
|
/* Now define the internal interfaces. */
|
|
extern SVCXPRT *svcfd_create (int fd, u_int sendsize, u_int recvsize);
|
|
|
|
extern int svcudp_enablecache (SVCXPRT *transp, u_long size);
|
|
extern SVCXPRT *svcunixfd_create (int fd, u_int sendsize, u_int recvsize);
|
|
|
|
libc_hidden_proto (svc_exit)
|
|
libc_hidden_proto (svc_getreq)
|
|
libc_hidden_proto (svc_getreqset)
|
|
libc_hidden_proto (svc_run)
|
|
libc_hidden_proto (svc_sendreply)
|
|
libc_hidden_proto (svcerr_decode)
|
|
libc_hidden_proto (svcerr_noproc)
|
|
libc_hidden_proto (svcerr_systemerr)
|
|
libc_hidden_proto (svcerr_weakauth)
|
|
libc_hidden_proto (svcfd_create)
|
|
libc_hidden_proto (svcraw_create)
|
|
libc_hidden_proto (svctcp_create)
|
|
libc_hidden_proto (svcudp_bufcreate)
|
|
libc_hidden_proto (svcudp_create)
|
|
libc_hidden_proto (svcudp_enablecache)
|
|
libc_hidden_proto (svcunix_create)
|
|
libc_hidden_proto (svcunixfd_create)
|
|
libc_hidden_proto (svc_getreq_common)
|
|
libc_hidden_proto (svc_getreq_poll)
|
|
|
|
extern void __svc_accept_failed (void) attribute_hidden;
|
|
extern void __svc_wait_on_error (void) attribute_hidden;
|
|
|
|
# endif /* !_ISOMAC */
|
|
#endif
|