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BUG: KASAN: stack-out-of-bounds in memcpy include/linux/fortify-string.h:191 [inline]
BUG: KASAN: stack-out-of-bounds in packet_recvmsg+0x56c/0x1150 net/packet/af_packet.c:3446
Write of size 178 at addr ffffc900037bfe10 by task syz-executor.3/8828

CPU: 1 PID: 8828 Comm: syz-executor.3 Not tainted 5.12.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x141/0x1d7 lib/dump_stack.c:120
 print_address_description.constprop.0.cold+0x5/0x2f8 mm/kasan/report.c:233
 __kasan_report mm/kasan/report.c:419 [inline]
 kasan_report.cold+0x7c/0xd8 mm/kasan/report.c:436
 check_region_inline mm/kasan/generic.c:180 [inline]
 kasan_check_range+0x13d/0x180 mm/kasan/generic.c:186
 memcpy+0x39/0x60 mm/kasan/shadow.c:66
 memcpy include/linux/fortify-string.h:191 [inline]
 packet_recvmsg+0x56c/0x1150 net/packet/af_packet.c:3446
 sock_recvmsg_nosec net/socket.c:888 [inline]
 sock_recvmsg net/socket.c:906 [inline]
 sock_recvmsg net/socket.c:902 [inline]
 __sys_recvfrom+0x248/0x3a0 net/socket.c:2034
 __do_sys_recvfrom net/socket.c:2052 [inline]
 __se_sys_recvfrom net/socket.c:2048 [inline]
 __x64_sys_recvfrom+0xdd/0x1b0 net/socket.c:2048
 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665d9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd19bf1f188 EFLAGS: 00000246 ORIG_RAX: 000000000000002d
RAX: ffffffffffffffda RBX: 000000000056c008 RCX: 00000000004665d9
RDX: 000000000000003c RSI: 0000000020000000 RDI: 0000000000000005
RBP: 00000000004bfcb9 R08: 00000000200000c0 R09: 0000000000000080
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c008
R13: 00007ffc4e669e3f R14: 00007fd19bf1f300 R15: 0000000000022000


addr ffffc900037bfe10 is located in stack of task syz-executor.3/8828 at offset 224 in frame:
 __sys_recvfrom+0x0/0x3a0 net/socket.c:1996

this frame has 5 objects:
 [32, 36) 'err'
 [48, 52) 'fput_needed'
 [64, 80) 'iov'
 [96, 192) 'msg'
 [224, 352) 'address'

Memory state around the buggy address:
 ffffc900037bfd80: f2 f2 00 00 00 00 00 00 00 00 00 00 00 00 f2 f2
 ffffc900037bfe00: f2 f2 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffc900037bfe80: 00 00 f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 00
                         ^
 ffffc900037bff00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc900037bff80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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