| Message ID | 1457483294-28496-1-git-send-email-kamal@canonical.com |
|---|---|
| State | New |
| Headers | show |
diff --git a/net/unix/diag.c b/net/unix/diag.c index 86fa0f3..27dd3dc 100644 --- a/net/unix/diag.c +++ b/net/unix/diag.c @@ -219,7 +219,7 @@ done: return skb->len; } -static struct sock *unix_lookup_by_ino(int ino) +static struct sock *unix_lookup_by_ino(unsigned int ino) { int i; struct sock *sk;
This is a note to let you know that I have just added a patch titled unix_diag: fix incorrect sign extension in unix_lookup_by_ino to the linux-3.19.y-queue branch of the 3.19.y-ckt extended stable tree which can be found at: http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.19.y-queue This patch is scheduled to be released in version 3.19.8-ckt16. If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.19.y-ckt tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Kamal ---8<------------------------------------------------------------ From 1b00a4f0f61132f8aa0b7e3f67377745cf05948e Mon Sep 17 00:00:00 2001 From: "Dmitry V. Levin" <ldv@altlinux.org> Date: Fri, 19 Feb 2016 04:27:48 +0300 Subject: unix_diag: fix incorrect sign extension in unix_lookup_by_ino [ Upstream commit b5f0549231ffb025337be5a625b0ff9f52b016f0 ] The value passed by unix_diag_get_exact to unix_lookup_by_ino has type __u32, but unix_lookup_by_ino's argument ino has type int, which is not a problem yet. However, when ino is compared with sock_i_ino return value of type unsigned long, ino is sign extended to signed long, and this results to incorrect comparison on 64-bit architectures for inode numbers greater than INT_MAX. This bug was found by strace test suite. Fixes: 5d3cae8bc39d ("unix_diag: Dumping exact socket core") Signed-off-by: Dmitry V. Levin <ldv@altlinux.org> Acked-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Kamal Mostafa <kamal@canonical.com> --- net/unix/diag.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 2.7.0