IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0
------------[ cut here ]------------
WARNING: CPU: 0 PID: 7815 at sound/core/info.c:637 snd_info_get_line.cold+0x11/0x20 sound/core/info.c:637
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 7815 Comm: syz-executor.1 Not tainted 4.19.134-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2fe lib/dump_stack.c:118
 panic+0x26a/0x50e kernel/panic.c:186
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0
 __warn.cold+0x20/0x61 kernel/panic.c:541
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0
 report_bug+0x262/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038
RIP: 0010:snd_info_get_line.cold+0x11/0x20 sound/core/info.c:637
Code: 31 c0 5b 5d c3 48 89 ef e8 9e 9c 15 fc eb be 48 89 ef e8 64 9f 15 fc eb d7 e8 9d 7f df fb 48 c7 c7 a0 1e 22 88 e8 40 8d ca fb <0f> 0b c7 44 24 0c 01 00 00 00 e9 9f cf ff ff e8 7d 7f df fb 48 c7
RSP: 0018:ffff88804a837ab8 EFLAGS: 00010282
RAX: 0000000000000024 RBX: ffff8880a0fabd00 RCX: 0000000000000000
RDX: 0000000000008753 RSI: ffffffff8154cf01 RDI: ffffed1009506f49
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
RBP: 0000000000000080 R08: 0000000000000024 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: ffff888097377300
R13: dffffc0000000000 R14: ffff8880a0fab908 R15: ffff8880a0fabd00
 snd_mixer_oss_proc_write+0xe2/0x530 sound/core/oss/mixer_oss.c:1192
 snd_info_text_entry_release+0xfa/0x260 sound/core/info.c:425
 close_pdeo.part.0+0xda/0x2f0 fs/proc/inode.c:176
 close_pdeo fs/proc/inode.c:401 [inline]
 proc_reg_release+0x21e/0x270 fs/proc/inode.c:395
 __fput+0x2ce/0x890 fs/file_table.c:278
 task_work_run+0x148/0x1c0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:193 [inline]
 exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
 do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45c369
Code: 8d b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 5b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fe855434c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000021
RAX: 0000000000000003 RBX: 0000000000002980 RCX: 000000000045c369
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000004
RBP: 000000000078bf38 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000078bf0c
R13: 00007ffe917f9d6f R14: 00007fe8554359c0 R15: 000000000078bf0c
Kernel Offset: disabled
Rebooting in 86400 seconds..