IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready 8021q: adding VLAN 0 to HW filter on device batadv0 8021q: adding VLAN 0 to HW filter on device batadv0 ================================================================== BUG: unable to handle kernel BUG: KASAN: null-ptr-deref in memcpy include/linux/string.h:347 [inline] BUG: KASAN: null-ptr-deref in llcp_sock_getname+0x378/0x480 net/nfc/llcp_sock.c:532 NULL pointer dereference at (null) Read of size 3 at addr (null) by task syz-executor.4/7000 IP: memcpy_erms+0x6/0x10 arch/x86/lib/memcpy_64.S:54 PGD a6009067 CPU: 1 PID: 7000 Comm: syz-executor.4 Not tainted 4.14.164-syzkaller #0 P4D a6009067 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: PUD 9234c067 __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0xf7/0x13b lib/dump_stack.c:58 PMD 0 kasan_report_error mm/kasan/report.c:349 [inline] kasan_report.cold.8+0x6d/0x2d3 mm/kasan/report.c:409 Oops: 0000 [#1] PREEMPT SMP KASAN check_memory_region_inline mm/kasan/kasan.c:260 [inline] check_memory_region+0x13e/0x1b0 mm/kasan/kasan.c:267 Modules linked in: memcpy+0x23/0x50 mm/kasan/kasan.c:302 memcpy include/linux/string.h:347 [inline] llcp_sock_getname+0x378/0x480 net/nfc/llcp_sock.c:532 CPU: 0 PID: 7003 Comm: syz-executor.2 Not tainted 4.14.164-syzkaller #0 SYSC_getpeername+0x122/0x250 net/socket.c:1715 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8880816a8480 task.stack: ffff888093bf0000 RIP: 0010:memcpy_erms+0x6/0x10 arch/x86/lib/memcpy_64.S:54 RSP: 0018:ffff888093bf7cb8 EFLAGS: 00010246 RAX: ffff888093bf7e22 RBX: 0000000000000003 RCX: 0000000000000003 RDX: 0000000000000003 RSI: 0000000000000000 RDI: ffff888093bf7e22 RBP: ffff888093bf7cd8 R08: ffffed101277efc5 R09: ffffed101277efc4 R10: ffffed101277efc4 R11: ffff888093bf7e24 R12: ffff888093bf7e22 SyS_getpeername+0x9/0x10 net/socket.c:1699 R13: 0000000000000000 R14: ffff88809e9a2a10 R15: 0000000000000000 do_syscall_64+0x1c7/0x5b0 arch/x86/entry/common.c:292 FS: 00007f9aa0793700(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 entry_SYSCALL_64_after_hwframe+0x42/0xb7 CR2: 0000000000000000 CR3: 000000009962f000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 RIP: 0033:0x459f39 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 RSP: 002b:00007fc5d9688c78 EFLAGS: 00000246 Call Trace: ORIG_RAX: 0000000000000034 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459f39 memcpy include/linux/string.h:347 [inline] llcp_sock_getname+0x378/0x480 net/nfc/llcp_sock.c:532 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 SYSC_getpeername+0x122/0x250 net/socket.c:1715 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc5d96896d4 R13: 00000000004c0bd0 R14: 00000000004d3668 R15: 00000000ffffffff ==================================================================