[linux] 01/04: Update to 4.8-rc5

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benh pushed a commit to branch master
in repository linux.

commit 95a7eda1776e354acfa8aa6175706310f685e353
Author: Ben Hutchings <ben at decadent.org.uk>
Date:   Wed Sep 7 21:27:44 2016 +0100

    Update to 4.8-rc5
---
 debian/changelog                                   |  2 +-
 ...e-after-free-in-tcp_xmit_retransmit_queue.patch | 50 ----------------------
 debian/patches/series                              |  1 -
 3 files changed, 1 insertion(+), 52 deletions(-)

diff --git a/debian/changelog b/debian/changelog
index 86d0e36..b734d21 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,4 +1,4 @@
-linux (4.8~rc4-1~exp1) UNRELEASED; urgency=medium
+linux (4.8~rc5-1~exp1) UNRELEASED; urgency=medium
 
   * New upstream release candidate
 
diff --git a/debian/patches/bugfix/all/tcp-fix-use-after-free-in-tcp_xmit_retransmit_queue.patch b/debian/patches/bugfix/all/tcp-fix-use-after-free-in-tcp_xmit_retransmit_queue.patch
deleted file mode 100644
index 47edeb3..0000000
--- a/debian/patches/bugfix/all/tcp-fix-use-after-free-in-tcp_xmit_retransmit_queue.patch
+++ /dev/null
@@ -1,50 +0,0 @@
-From: Eric Dumazet <edumazet at google.com>
-Date: Wed, 17 Aug 2016 05:56:26 -0700
-Subject: tcp: fix use after free in tcp_xmit_retransmit_queue()
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-Origin: https://git.kernel.org/cgit/linux/kernel/git/davem/net.git/commit?id=bb1fceca22492109be12640d49f5ea5a544c6bb4
-
-When tcp_sendmsg() allocates a fresh and empty skb, it puts it at the
-tail of the write queue using tcp_add_write_queue_tail()
-
-Then it attempts to copy user data into this fresh skb.
-
-If the copy fails, we undo the work and remove the fresh skb.
-
-Unfortunately, this undo lacks the change done to tp->highest_sack and
-we can leave a dangling pointer (to a freed skb)
-
-Later, tcp_xmit_retransmit_queue() can dereference this pointer and
-access freed memory. For regular kernels where memory is not unmapped,
-this might cause SACK bugs because tcp_highest_sack_seq() is buggy,
-returning garbage instead of tp->snd_nxt, but with various debug
-features like CONFIG_DEBUG_PAGEALLOC, this can crash the kernel.
-
-This bug was found by Marco Grassi thanks to syzkaller.
-
-Fixes: 6859d49475d4 ("[TCP]: Abstract tp->highest_sack accessing & point to next skb")
-Reported-by: Marco Grassi <marco.gra at gmail.com>
-Signed-off-by: Eric Dumazet <edumazet at google.com>
-Cc: Ilpo Järvinen <ilpo.jarvinen at helsinki.fi>
-Cc: Yuchung Cheng <ycheng at google.com>
-Cc: Neal Cardwell <ncardwell at google.com>
-Acked-by: Neal Cardwell <ncardwell at google.com>
-Reviewed-by: Cong Wang <xiyou.wangcong at gmail.com>
-Signed-off-by: David S. Miller <davem at davemloft.net>
----
- include/net/tcp.h | 2 ++
- 1 file changed, 2 insertions(+)
-
---- a/include/net/tcp.h
-+++ b/include/net/tcp.h
-@@ -1522,6 +1522,8 @@ static inline void tcp_check_send_head(s
- {
- 	if (sk->sk_send_head == skb_unlinked)
- 		sk->sk_send_head = NULL;
-+	if (tcp_sk(sk)->highest_sack == skb_unlinked)
-+		tcp_sk(sk)->highest_sack = NULL;
- }
- 
- static inline void tcp_init_send_head(struct sock *sk)
diff --git a/debian/patches/series b/debian/patches/series
index 8583c2c..51137e0 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -94,7 +94,6 @@ features/all/securelevel/arm64-add-kernel-config-option-to-set-securelevel-wh.pa
 # Security fixes
 bugfix/all/ptrace-being-capable-wrt-a-process-requires-mapped-uids-gids.patch
 debian/i386-686-pae-pci-set-pci-nobios-by-default.patch
-bugfix/all/tcp-fix-use-after-free-in-tcp_xmit_retransmit_queue.patch
 
 # ABI maintenance
 

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