audit: type=1400 audit(1572864670.915:36): avc: denied { map } for pid=6846 comm="syz-executor020" path="/root/syz-executor020674858" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1
==================================================================
BUG: KASAN: null-ptr-deref in memcpy include/linux/string.h:347 [inline]
BUG: KASAN: null-ptr-deref in llcp_sock_getname+0x38f/0x4a0 net/nfc/llcp_sock.c:532
Read of size 1 at addr (null) by task syz-executor020/6853
CPU: 0 PID: 6853 Comm: syz-executor020 Not tainted 4.14.151 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x138/0x197 lib/dump_stack.c:53
kasan_report_error mm/kasan/report.c:349 [inline]
kasan_report mm/kasan/report.c:409 [inline]
kasan_report.cold+0x127/0x2af mm/kasan/report.c:393
check_memory_region_inline mm/kasan/kasan.c:260 [inline]
check_memory_region+0x123/0x190 mm/kasan/kasan.c:267
memcpy+0x24/0x50 mm/kasan/kasan.c:302
memcpy include/linux/string.h:347 [inline]
llcp_sock_getname+0x38f/0x4a0 net/nfc/llcp_sock.c:532
SYSC_getpeername+0x120/0x270 net/socket.c:1715
SyS_getpeername+0x24/0x30 net/socket.c:1699
do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x4412b9
RSP: 002b:00007ffd7a3e22f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000034
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412b9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00000000006cb018 R08: 00000000004002c8 R09: 00000000004002c8
R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000402030
R13: 00000000004020c0 R14: 0000000000000000 R15: 0000000000000000
BUG: unable to handle kernel NULL pointer dereference at (null)
==================================================================
IP: memcpy_erms+0x6/0x10 arch/x86/lib/memcpy_64.S:54
PGD 9c2bb067 P4D 9c2bb067 PUD a8fd4067 PMD 0
Oops: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 6914 Comm: syz-executor020 Tainted: G B 4.14.151 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8880a7ca05c0 task.stack: ffff888099120000
RIP: 0010:memcpy_erms+0x6/0x10 arch/x86/lib/memcpy_64.S:54
RSP: 0018:ffff888099127d20 EFLAGS: 00010246
RAX: ffff888099127e0a RBX: ffff888099127df8 RCX: 0000000000000001
RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff888099127e0a
RBP: ffff888099127d40 R08: 1ffff11013224fc1 R09: ffffed1013224fc2
R10: ffffed1013224fc1 R11: ffff888099127e0a R12: 0000000000000001
R13: ffff888099127e0a R14: 0000000000000000 R15: ffffffff87069cc0
FS: 000000000178a880(0000) GS:ffff8880aef00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000894bd000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
memcpy include/linux/string.h:347 [inline]
llcp_sock_getname+0x38f/0x4a0 net/nfc/llcp_sock.c:532
SYSC_getpeername+0x120/0x270 net/socket.c:1715
SyS_getpeername+0x24/0x30 net/socket.c:1699
do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x4412b9
RSP: 002b:00007ffd7a3e22f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000034
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412b9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000009db0 R08: 00000000004002c8 R09: 00000000004002c8
R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000402030
R13: 00000000004020c0 R14: 0000000000000000 R15: 0000000000000000
Code: 90 90 90 90 90 eb 1e 0f 1f 00 48 89 f8 48 89 d1 48 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 c3 66 0f 1f 44 00 00 48 89 f8 48 89 d1 <f3> a4 c3 0f 1f 80 00 00 00 00 48 89 f8 48 83 fa 20 72 7e 40 38
RIP: memcpy_erms+0x6/0x10 arch/x86/lib/memcpy_64.S:54 RSP: ffff888099127d20
CR2: 0000000000000000
BUG: unable to handle kernel NULL pointer dereference at (null)
IP: memcpy_erms+0x6/0x10 arch/x86/lib/memcpy_64.S:54
PGD 8409e067 P4D 8409e067 PUD 90ba4067 PMD 0
Oops: 0000 [#2] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 6918 Comm: syz-executor020 Tainted: G B D 4.14.151 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8880865c06c0 task.stack: ffff888084370000
RIP: 0010:memcpy_erms+0x6/0x10 arch/x86/lib/memcpy_64.S:54
RSP: 0018:ffff888084377d20 EFLAGS: 00010246
RAX: ffff888084377e0a RBX: ffff888084377df8 RCX: 0000000000000001
RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff888084377e0a
RBP: ffff888084377d40 R08: 1ffff1101086efc1 R09: ffffed101086efc2
R10: ffffed101086efc1 R11: ffff888084377e0a R12: 0000000000000001
R13: ffff888084377e0a R14: 0000000000000000 R15: ffffffff87069cc0
FS: 000000000178a880(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000994fa000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
memcpy include/linux/string.h:347 [inline]
llcp_sock_getname+0x38f/0x4a0 net/nfc/llcp_sock.c:532
SYSC_getpeername+0x120/0x270 net/socket.c:1715
SyS_getpeername+0x24/0x30 net/socket.c:1699
do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x4412b9
RSP: 002b:00007ffd7a3e22f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000034
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412b9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00000000006cb018 R08: 00000000004002c8 R09: 00000000004002c8
R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000402030
R13: 00000000004020c0 R14: 0000000000000000 R15: 0000000000000000
Code: 90 90 90 90 90 eb 1e 0f 1f 00 48 89 f8 48 89 d1 48 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 c3 66 0f 1f 44 00 00 48 89 f8 48 89 d1 <f3> a4 c3 0f 1f 80 00 00 00 00 48 89 f8 48 83 fa 20 72 7e 40 38
RIP: memcpy_erms+0x6/0x10 arch/x86/lib/memcpy_64.S:54 RSP: ffff888084377d20
CR2: 0000000000000000
BUG: unable to handle kernel NULL pointer dereference at (null)
IP: memcpy_erms+0x6/0x10 arch/x86/lib/memcpy_64.S:54
PGD 9e7df067 P4D 9e7df067 PUD 94ebb067 PMD 0
Oops: 0000 [#3] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 6916 Comm: syz-executor020 Tainted: G B D 4.14.151 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff888089ef6300 task.stack: ffff8880a1588000
RIP: 0010:memcpy_erms+0x6/0x10 arch/x86/lib/memcpy_64.S:54
RSP: 0018:ffff8880a158fd20 EFLAGS: 00010246
RAX: ffff8880a158fe0a RBX: ffff8880a158fdf8 RCX: 0000000000000001
RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff8880a158fe0a
RBP: ffff8880a158fd40 R08: 1ffff110142b1fc1 R09: ffffed10142b1fc2
R10: ffffed10142b1fc1 R11: ffff8880a158fe0a R12: 0000000000000001
R13: ffff8880a158fe0a R14: 0000000000000000 R15: ffffffff87069cc0
FS: 000000000178a880(0000) GS:ffff8880aef00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000096cb2000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
memcpy include/linux/string.h:347 [inline]
llcp_sock_getname+0x38f/0x4a0 net/nfc/llcp_sock.c:532
SYSC_getpeername+0x120/0x270 net/socket.c:1715
SyS_getpeername+0x24/0x30 net/socket.c:1699
do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x4412b9
RSP: 002b:00007ffd7a3e22f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000034
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412b9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000009d25 R08: 00000000004002c8 R09: 00000000004002c8
R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000402030
R13: 00000000004020c0 R14: 0000000000000000 R15: 0000000000000000
Code: 90 90 90 90 90 eb 1e 0f 1f 00 48 89 f8 48 89 d1 48 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 c3 66 0f 1f 44 00 00 48 89 f8 48 89 d1 <f3> a4 c3 0f 1f 80 00 00 00 00 48 89 f8 48 83 fa 20 72 7e 40 38
RIP: memcpy_erms+0x6/0x10 arch/x86/lib/memcpy_64.S:54 RSP: ffff8880a158fd20
CR2: 0000000000000000
BUG: unable to handle kernel NULL pointer dereference at (null)
---[ end trace dfa753d9dc2fc638 ]---
IP: memcpy_erms+0x6/0x10 arch/x86/lib/memcpy_64.S:54
PGD a09a7067 P4D a09a7067 PUD 865ea067 PMD 0
Oops: 0000 [#4] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 6919 Comm: syz-executor020 Tainted: G B D 4.14.151 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8880a58f4640 task.stack: ffff888085890000
RIP: 0010:memcpy_erms+0x6/0x10 arch/x86/lib/memcpy_64.S:54
RSP: 0018:ffff888085897d20 EFLAGS: 00010246
RAX: ffff888085897e0a RBX: ffff888085897df8 RCX: 0000000000000001
RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff888085897e0a
RBP: ffff888085897d40 R08: 1ffff11010b12fc1 R09: ffffed1010b12fc2
R10: ffffed1010b12fc1 R11: ffff888085897e0a R12: 0000000000000001
R13: ffff888085897e0a R14: 0000000000000000 R15: ffffffff87069cc0
FS: 000000000178a880(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000938a2000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
memcpy include/linux/string.h:347 [inline]
llcp_sock_getname+0x38f/0x4a0 net/nfc/llcp_sock.c:532
SYSC_getpeername+0x120/0x270 net/socket.c:1715
SyS_getpeername+0x24/0x30 net/socket.c:1699
do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292