Re: [PATCH] net: ipv4: fix memory leak in ip_mc_add1_src

From: patchwork-bot+netdevbpf
Date: Wed Jun 16 2021 - 15:50:11 EST


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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