[PATCH] net: ipv4: fix memory leak in netlbl_cipsov4_add_std

[patchwork-bot+netdevbpf at kernel.org]

Hello:

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

On Tue, 8 Jun 2021 09:51:58 +0800 you wrote:
> Reported by syzkaller:
> BUG: memory leak
> unreferenced object 0xffff888105df7000 (size 64):
> comm "syz-executor842", pid 360, jiffies 4294824824 (age 22.546s)
> hex dump (first 32 bytes):
> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> backtrace:
> [<00000000e67ed558>] kmalloc include/linux/slab.h:590 [inline]
> [<00000000e67ed558>] kzalloc include/linux/slab.h:720 [inline]
> [<00000000e67ed558>] netlbl_cipsov4_add_std net/netlabel/netlabel_cipso_v4.c:145 [inline]
> [<00000000e67ed558>] netlbl_cipsov4_add+0x390/0x2340 net/netlabel/netlabel_cipso_v4.c:416
> [<0000000006040154>] genl_family_rcv_msg_doit.isra.0+0x20e/0x320 net/netlink/genetlink.c:739
> [<00000000204d7a1c>] genl_family_rcv_msg net/netlink/genetlink.c:783 [inline]
> [<00000000204d7a1c>] genl_rcv_msg+0x2bf/0x4f0 net/netlink/genetlink.c:800
> [<00000000c0d6a995>] netlink_rcv_skb+0x134/0x3d0 net/netlink/af_netlink.c:2504
> [<00000000d78b9d2c>] genl_rcv+0x24/0x40 net/netlink/genetlink.c:811
> [<000000009733081b>] netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline]
> [<000000009733081b>] netlink_unicast+0x4a0/0x6a0 net/netlink/af_netlink.c:1340
> [<00000000d5fd43b8>] netlink_sendmsg+0x789/0xc70 net/netlink/af_netlink.c:1929
> [<000000000a2d1e40>] sock_sendmsg_nosec net/socket.c:654 [inline]
> [<000000000a2d1e40>] sock_sendmsg+0x139/0x170 net/socket.c:674
> [<00000000321d1969>] ____sys_sendmsg+0x658/0x7d0 net/socket.c:2350
> [<00000000964e16bc>] ___sys_sendmsg+0xf8/0x170 net/socket.c:2404
> [<000000001615e288>] __sys_sendmsg+0xd3/0x190 net/socket.c:2433
> [<000000004ee8b6a5>] do_syscall_64+0x37/0x90 arch/x86/entry/common.c:47
> [<00000000171c7cee>] entry_SYSCALL_64_after_hwframe+0x44/0xae
> 
> [...]

Here is the summary with links:
  - net: ipv4: fix memory leak in netlbl_cipsov4_add_std
    https://git.kernel.org/netdev/net/c/d612c3f3fae2

You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html