general protection fault in bpf_clone_redirect

[syzbot]

Hello,

syzbot found the following crash on:

HEAD commit: b98aebd2 Linux 4.14.150
git tree: linux-4.14.y
console output: https://syzkaller.appspot.com/x/log.txt?x=176ecbc0e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=c52c93b368dac5a7
dashboard link: https://syzkaller.appspot.com/bug?extid=bbcb3d7ab847ea79ba53
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+bbcb3d...@syzkaller.appspotmail.com

FAT-fs (loop0): Unrecognized mount option "18446744073709551615" or missing
value
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 15811 Comm: syz-executor.5 Not tainted 4.14.150 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
task: ffff8880997501c0 task.stack: ffff888056150000
RIP: 0010:dev_net include/linux/netdevice.h:2015 [inline]
RIP: 0010:____bpf_clone_redirect net/core/filter.c:1768 [inline]
RIP: 0010:bpf_clone_redirect+0x6c/0x2f0 net/core/filter.c:1759
RSP: 0018:ffff8880561579a8 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff88809b993e00 RCX: ffffc9000623f000
RDX: 00000000000000b0 RSI: ffffffff84daf5c1 RDI: 0000000000000580
RBP: ffff8880561579e8 R08: 0000000000000000 R09: ffff888099750a60
R10: ffff888099750a40 R11: ffff8880997501c0 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000014 R15: ffffc900018e1030
FS: 00007f28bfe65700(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f29093d5000 CR3: 0000000092ee4000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
bpf_prog_3c8dfff8b3098609+0x9c3/0x1000
Code: fa 48 c1 ea 03 80 3c 02 00 0f 85 89 02 00 00 48 b8 00 00 00 00 00 fc
ff df 4c 8b 6b 10 49 8d bd 80 05 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00
0f 85 49 02 00 00 49 8b bd 80 05 00 00 44 89 f6 e8
RIP: dev_net include/linux/netdevice.h:2015 [inline] RSP: ffff8880561579a8
RIP: ____bpf_clone_redirect net/core/filter.c:1768 [inline] RSP:
ffff8880561579a8
RIP: bpf_clone_redirect+0x6c/0x2f0 net/core/filter.c:1759 RSP:
ffff8880561579a8
---[ end trace 318274e723de71bd ]---
Kernel panic - not syncing: Fatal exception
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.