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[Bug network/15946] getaddrinfo() writes DNS queries to random file descriptors under high load (CVE-2013-7423)
- From: "fweimer at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Thu, 22 Oct 2015 13:50:28 +0000
- Subject: [Bug network/15946] getaddrinfo() writes DNS queries to random file descriptors under high load (CVE-2013-7423)
- Auto-submitted: auto-generated
- References: <bug-15946-131 at http dot sourceware dot org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=15946
--- Comment #21 from Florian Weimer <fweimer at redhat dot com> ---
If this bug randomly picks a Netlink socket (such as the one used by
__check_pf), and SELinux is enabled (in permissive or enforcing mode), a kernel
message "SELinux: unrecognized netlink message type=256 for sclass=30" will be
logged, or "SELinux: unrecognized netlink message: protocol=0 nlmsg_type=256
sclass=30" for newer kernel versions.
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