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[Bug libc/19557] recvmsg fails retrieving SCM_CREDENTIALS with error EOPNOTSUPP
- From: "fweimer at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Wed, 03 Feb 2016 12:16:59 +0000
- Subject: [Bug libc/19557] recvmsg fails retrieving SCM_CREDENTIALS with error EOPNOTSUPP
- Auto-submitted: auto-generated
- References: <bug-19557-131 at http dot sourceware dot org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=19557
Florian Weimer <fweimer at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |RESOLVED
Resolution|--- |MOVED
--- Comment #3 from Florian Weimer <fweimer at redhat dot com> ---
Thanks. This happens with kernel-4.5.0-0.rc1.git2.1.fc24.x86_64 as well.
strace shows:
socketpair(PF_LOCAL, SOCK_STREAM, 0, [3, 4]) = 0
sendto(4, "A random message\0", 17, MSG_DONTWAIT|MSG_NOSIGNAL, NULL, 0) = 17
setsockopt(3, SOL_SOCKET, SO_PASSCRED, [1], 4) = 0
recvmsg(3, 0x7ffdd7e17400, MSG_PEEK) = -1 EOPNOTSUPP (Operation not
supported)
This looks like a kernel regression. Please report it to the kernel
developers.
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