netdev - Re: [PATCH] net: ipv4: fix memory leak in ip_mc_add1

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Date:   Wed, 16 Jun 2021 19:50:04 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Chengyang Fan <cy.fan@...wei.com>
Cc:     davem@...emloft.net, yoshfuji@...ux-ipv6.org, dsahern@...nel.org,
        kuba@...nel.org, liuhangbin@...il.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net: ipv4: fix memory leak in ip_mc_add1_src

Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Wed, 16 Jun 2021 17:59:25 +0800 you wrote:
> BUG: memory leak
> unreferenced object 0xffff888101bc4c00 (size 32):
>   comm "syz-executor527", pid 360, jiffies 4294807421 (age 19.329s)
>   hex dump (first 32 bytes):
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
>     01 00 00 00 00 00 00 00 ac 14 14 bb 00 00 02 00 ................
>   backtrace:
>     [<00000000f17c5244>] kmalloc include/linux/slab.h:558 [inline]
>     [<00000000f17c5244>] kzalloc include/linux/slab.h:688 [inline]
>     [<00000000f17c5244>] ip_mc_add1_src net/ipv4/igmp.c:1971 [inline]
>     [<00000000f17c5244>] ip_mc_add_src+0x95f/0xdb0 net/ipv4/igmp.c:2095
>     [<000000001cb99709>] ip_mc_source+0x84c/0xea0 net/ipv4/igmp.c:2416
>     [<0000000052cf19ed>] do_ip_setsockopt net/ipv4/ip_sockglue.c:1294 [inline]
>     [<0000000052cf19ed>] ip_setsockopt+0x114b/0x30c0 net/ipv4/ip_sockglue.c:1423
>     [<00000000477edfbc>] raw_setsockopt+0x13d/0x170 net/ipv4/raw.c:857
>     [<00000000e75ca9bb>] __sys_setsockopt+0x158/0x270 net/socket.c:2117
>     [<00000000bdb993a8>] __do_sys_setsockopt net/socket.c:2128 [inline]
>     [<00000000bdb993a8>] __se_sys_setsockopt net/socket.c:2125 [inline]
>     [<00000000bdb993a8>] __x64_sys_setsockopt+0xba/0x150 net/socket.c:2125
>     [<000000006a1ffdbd>] do_syscall_64+0x40/0x80 arch/x86/entry/common.c:47
>     [<00000000b11467c4>] entry_SYSCALL_64_after_hwframe+0x44/0xae
> 
> [...]

Here is the summary with links:
  - net: ipv4: fix memory leak in ip_mc_add1_src
    https://git.kernel.org/netdev/net/c/d8e2973029b8

You are awesome, thank you!
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