diff options
Diffstat (limited to 'package/systemd/0002-resolved-simplify-alloc-size-calculation.patch')
-rw-r--r-- | package/systemd/0002-resolved-simplify-alloc-size-calculation.patch | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/package/systemd/0002-resolved-simplify-alloc-size-calculation.patch b/package/systemd/0002-resolved-simplify-alloc-size-calculation.patch deleted file mode 100644 index 5fab905606..0000000000 --- a/package/systemd/0002-resolved-simplify-alloc-size-calculation.patch +++ /dev/null @@ -1,51 +0,0 @@ -From db848813bae4d28c524b3b6a7dad135e426659ce Mon Sep 17 00:00:00 2001 -From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl> -Date: Sun, 18 Jun 2017 16:07:57 -0400 -Subject: [PATCH] resolved: simplify alloc size calculation - -The allocation size was calculated in a complicated way, and for values -close to the page size we would actually allocate less than requested. - -Reported by Chris Coulson <chris.coulson@canonical.com>. - -CVE-2017-9445 - -[Upstream commit: https://github.com/systemd/systemd/commit/db848813bae4d28c524b3b6a7dad135e426659ce] -Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> ---- - src/resolve/resolved-dns-packet.c | 8 +------- - src/resolve/resolved-dns-packet.h | 2 -- - 2 files changed, 1 insertion(+), 9 deletions(-) - -diff --git a/src/resolve/resolved-dns-packet.c b/src/resolve/resolved-dns-packet.c -index 240ee448f4..821b66e266 100644 ---- a/src/resolve/resolved-dns-packet.c -+++ b/src/resolve/resolved-dns-packet.c -@@ -47,13 +47,7 @@ int dns_packet_new(DnsPacket **ret, DnsProtocol protocol, size_t mtu) { - - assert(ret); - -- if (mtu <= UDP_PACKET_HEADER_SIZE) -- a = DNS_PACKET_SIZE_START; -- else -- a = mtu - UDP_PACKET_HEADER_SIZE; -- -- if (a < DNS_PACKET_HEADER_SIZE) -- a = DNS_PACKET_HEADER_SIZE; -+ a = MAX(mtu, DNS_PACKET_HEADER_SIZE); - - /* round up to next page size */ - a = PAGE_ALIGN(ALIGN(sizeof(DnsPacket)) + a) - ALIGN(sizeof(DnsPacket)); -diff --git a/src/resolve/resolved-dns-packet.h b/src/resolve/resolved-dns-packet.h -index 2c92392e4d..3abcaf8cf3 100644 ---- a/src/resolve/resolved-dns-packet.h -+++ b/src/resolve/resolved-dns-packet.h -@@ -66,8 +66,6 @@ struct DnsPacketHeader { - /* With EDNS0 we can use larger packets, default to 4096, which is what is commonly used */ - #define DNS_PACKET_UNICAST_SIZE_LARGE_MAX 4096 - --#define DNS_PACKET_SIZE_START 512 -- - struct DnsPacket { - int n_ref; - DnsProtocol protocol; |