batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
kasan: CONFIG_KASAN_INLINE enabled
IPv6: ADDRCONF(NETDEV_UP): batadv_slave_0: link is not ready
kasan: GPF could be caused by NULL-ptr deref or user memory access
batman_adv: batadv0: Interface activated: batadv_slave_0
general protection fault: 0000 [#1] PREEMPT SMP KASAN
IPv6: ADDRCONF(NETDEV_UP): veth1_macvtap: link is not ready
Modules linked in:
CPU: 0 PID: 9399 Comm: syz-executor.5 Not tainted 4.14.295-syzkaller #0
device veth0_macvtap entered promiscuous mode
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
task: ffff88804cdd22c0 task.stack: ffff88804cdd8000
RIP: 0010:scatterwalk_start include/crypto/scatterwalk.h:86 [inline]
RIP: 0010:scatterwalk_pagedone include/crypto/scatterwalk.h:111 [inline]
RIP: 0010:scatterwalk_copychunks+0x4a3/0x680 crypto/scatterwalk.c:55
RSP: 0018:ffff88804cddf520 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000001000 RCX: ffffc900065eb000
RDX: 0000000000000002 RSI: ffffffff831755c4 RDI: ffff88804ce1a368
RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed10097943d1
R10: ffff88804bca1e8c R11: 0000000000000000 R12: 0000000000001000
R13: ffff88804cddf5d8 R14: 0000000000003000 R15: ffff88804ce1a374
FS:  00007ffac22c7700(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000
IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff4b18ad50 CR3: 00000000a391e000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 scatterwalk_map_and_copy crypto/scatterwalk.c:72 [inline]
 scatterwalk_map_and_copy+0x100/0x1a0 crypto/scatterwalk.c:60
device veth1_macvtap entered promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): macsec0: link is not ready
 gcmaes_encrypt.constprop.0+0x5b5/0xc00 arch/x86/crypto/aesni-intel_glue.c:778
IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready
IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
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:3e) already exists on: batadv_slave_0
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:3e) already exists on: batadv_slave_0
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:3e) already exists on: batadv_slave_0
Code: fc 
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
ff df 80 3c 02 00 0f 85 d9 01 00 00 48 8d 45 10 
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
49 89 6d 00 48 89 c2 48 89 44 24 18 48 b8 
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> 
IPv6: ADDRCONF(NETDEV_UP): batadv_slave_0: link is not ready
b6 04 02 84 c0 74 08 3c 03 0f 8e 81 01 00 00 48 b8 00 
batman_adv: batadv0: Interface activated: batadv_slave_0
00 00 
RIP: scatterwalk_start include/crypto/scatterwalk.h:86 [inline] RSP: ffff88804cddf520
RIP: scatterwalk_pagedone include/crypto/scatterwalk.h:111 [inline] RSP: ffff88804cddf520
RIP: scatterwalk_copychunks+0x4a3/0x680 crypto/scatterwalk.c:55 RSP: ffff88804cddf520
---[ end trace 805f74f365e2b25e ]---