corrupted report

[syzbot]

Hello,

syzbot found the following crash on:

HEAD commit: 5875149a Linux 4.4.179
git tree: linux-4.4.y
console output: https://syzkaller.appspot.com/x/log.txt?x=1355f1d0a00000
kernel config: https://syzkaller.appspot.com/x/.config?x=7b868c26a476e459
dashboard link: https://syzkaller.appspot.com/bug?extid=e37267d5aecf7c5b6578
compiler: gcc (GCC) 9.0.0 20181231 (experimental)

Unfortunately, I don't have any reproducer for this crash yet.

IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+e37267...@syzkaller.appspotmail.com

IPVS: ftp: loaded support on port[0] = 21
IPVS: Creating netns size=2712 id=2
IPVS: ftp: loaded support on port[0] = 21
chnl_net:caif_netlink_parms(): no params data found
------------[ cut here ]------------
WARNING: CPU: 1 PID: 5817 at net/batman-adv/main.c:750
batadv_tvlv_container_remove+0x7b/0x80 net/batman-adv/main.c:750()
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 5817 Comm: syz-executor.0 Not tainted 4.4.179 #3
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
0000000000000082 ffff8800b85d3868 ffffffff818ad452 0000000000000000
ffffffff82e94970 ffffffff8300853d ffff8800b85d38e0 ffffffff812711cc
ffff880000000008 ffff8800b85d38f0 ffff8800b85d3890 ffffffff8127659d
Call Trace:
[<ffffffff818ad452>] __dump_stack lib/dump_stack.c:15 [inline]
[<ffffffff818ad452>] dump_stack+0xa1/0xdf lib/dump_stack.c:51
[<ffffffff812711cc>] panic+0xd2/0x237 kernel/panic.c:112
[<ffffffff81271357>] warn_slowpath_common kernel/panic.c:455 [inline]
[<ffffffff81271357>] warn_slowpath_common.cold+0x16/0x16 kernel/panic.c:435
[<ffffffff811733a5>] warn_slowpath_null+0x15/0x20 kernel/panic.c:492
[<ffffffff825fe77b>] batadv_tvlv_container_remove+0x7b/0x80
net/batman-adv/main.c:750
[<ffffffff825ff583>] batadv_tvlv_container_register+0xb3/0x120
net/batman-adv/main.c:815
[<ffffffff825f89a6>] batadv_dat_tvlv_container_update
net/batman-adv/distributed-arp-table.c:691 [inline]
[<ffffffff825f89a6>] batadv_dat_tvlv_container_update+0x26/0x40
net/batman-adv/distributed-arp-table.c:680
[<ffffffff825f941a>] batadv_dat_init+0x6a/0x80
net/batman-adv/distributed-arp-table.c:763
[<ffffffff825fec09>] batadv_mesh_init+0x239/0x290 net/batman-adv/main.c:173
[<ffffffff82609d91>] batadv_softif_init_late+0x271/0x2c0
net/batman-adv/soft-interface.c:832
[<ffffffff820f630d>] register_netdevice+0xfd/0x450 net/core/dev.c:6756
[<ffffffff82105e69>] rtnl_newlink+0x8b9/0x920 net/core/rtnetlink.c:2393
[<ffffffff821043d6>] rtnetlink_rcv_msg+0x176/0x1e0
net/core/rtnetlink.c:3446
[<ffffffff82169354>] netlink_rcv_skb+0x34/0xc0
net/netlink/af_netlink.c:2361
[<ffffffff82104256>] rtnetlink_rcv+0x26/0x30 net/core/rtnetlink.c:3452
[<ffffffff82168cfb>] netlink_unicast_kernel net/netlink/af_netlink.c:1277
[inline]
[<ffffffff82168cfb>] netlink_unicast+0x16b/0x2d0
net/netlink/af_netlink.c:1303
[<ffffffff82169051>] netlink_sendmsg+0x1f1/0x390
net/netlink/af_netlink.c:1859
[<ffffffff820d0fbb>] sock_sendmsg_nosec net/socket.c:600 [inline]
[<ffffffff820d0fbb>] sock_sendmsg+0x3b/0x50 net/socket.c:610
[<ffffffff820d144d>] SYSC_sendto+0xed/0x160 net/socket.c:1640
[<ffffffff820d22f9>] SyS_sendto+0x9/0x10 net/socket.c:1608
[<ffffffff82669942>] entry_SYSCALL_64_fastpath+0x22/0x82
Kernel Offset: disabled
Rebooting in 86400 seconds..


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[syzbot]

Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.