netdev - Re: [PATCH v1 net] af_unix: Fix memory leaks of the whole sk due to OOB skb.

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Date:   Mon, 03 Oct 2022 07:10:14 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Kuniyuki Iwashima <kuniyu@...zon.com>
Cc:     davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, rao.shoaib@...cle.com, kuni1840@...il.com,
        netdev@...r.kernel.org, syzkaller@...glegroups.com
Subject: Re: [PATCH v1 net] af_unix: Fix memory leaks of the whole sk due to OOB
 skb.

Hello:

This patch was applied to netdev/net.git (master)
by David S. Miller <davem@...emloft.net>:

On Thu, 29 Sep 2022 08:52:04 -0700 you wrote:
> syzbot reported a sequence of memory leaks, and one of them indicated we
> failed to free a whole sk:
> 
>   unreferenced object 0xffff8880126e0000 (size 1088):
>     comm "syz-executor419", pid 326, jiffies 4294773607 (age 12.609s)
>     hex dump (first 32 bytes):
>       00 00 00 00 00 00 00 00 7d 00 00 00 00 00 00 00  ........}.......
>       01 00 07 40 00 00 00 00 00 00 00 00 00 00 00 00  ...@............
>     backtrace:
>       [<000000006fefe750>] sk_prot_alloc+0x64/0x2a0 net/core/sock.c:1970
>       [<0000000074006db5>] sk_alloc+0x3b/0x800 net/core/sock.c:2029
>       [<00000000728cd434>] unix_create1+0xaf/0x920 net/unix/af_unix.c:928
>       [<00000000a279a139>] unix_create+0x113/0x1d0 net/unix/af_unix.c:997
>       [<0000000068259812>] __sock_create+0x2ab/0x550 net/socket.c:1516
>       [<00000000da1521e1>] sock_create net/socket.c:1566 [inline]
>       [<00000000da1521e1>] __sys_socketpair+0x1a8/0x550 net/socket.c:1698
>       [<000000007ab259e1>] __do_sys_socketpair net/socket.c:1751 [inline]
>       [<000000007ab259e1>] __se_sys_socketpair net/socket.c:1748 [inline]
>       [<000000007ab259e1>] __x64_sys_socketpair+0x97/0x100 net/socket.c:1748
>       [<000000007dedddc1>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>       [<000000007dedddc1>] do_syscall_64+0x38/0x90 arch/x86/entry/common.c:80
>       [<000000009456679f>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
> 
> [...]

Here is the summary with links:
  - [v1,net] af_unix: Fix memory leaks of the whole sk due to OOB skb.
    https://git.kernel.org/netdev/net/c/7a62ed61367b

You are awesome, thank you!
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