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kernel BUG at mm/slab.c:4427!
loop1: rw=2049, want=54, limit=39
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 17245 Comm: syz-executor.3 Not tainted 4.14.174-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff88806220e200 task.stack: ffff88804cfa8000
RIP: 0010:__check_heap_object+0x58/0x5a mm/slab.c:4427
RSP: 0018:ffff88804cfafbe8 EFLAGS: 00010293
RAX: 00000000000f0f0f RBX: 0000000000000711 RCX: 000000000000000c
RDX: 00000000e1e1e1df RSI: 0000000000000711 RDI: ffff888055ca62bd
RBP: 0000000000000001 R08: ffff88812fe56dc0 R09: ffff888055ca62c0
R10: ffff88821fff7050 R11: 0000000000000001 R12: ffff888055ca62bd
R13: ffffea0001572980 R14: ffff888055ca69ce R15: ffffea0001572980
FS:  00007f1f54046700(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6a1e996330 CR3: 00000000a58f5000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 check_heap_object mm/usercopy.c:216 [inline]
 __check_object_size mm/usercopy.c:242 [inline]
 __check_object_size+0x148/0x28a mm/usercopy.c:228
 check_object_size include/linux/thread_info.h:108 [inline]
 check_copy_size include/linux/thread_info.h:139 [inline]
 copy_to_user include/linux/uaccess.h:154 [inline]
 bpf_test_finish.isra.0+0x89/0x140 net/bpf/test_run.c:59
 bpf_prog_test_run_skb+0x584/0x960 net/bpf/test_run.c:144
 bpf_prog_test_run kernel/bpf/syscall.c:1264 [inline]
 SYSC_bpf kernel/bpf/syscall.c:1526 [inline]
 SyS_bpf+0x6bc/0x2d12 kernel/bpf/syscall.c:1475
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45c849
RSP: 002b:00007f1f54045c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f1f540466d4 RCX: 000000000045c849
RDX: 0000000000000040 RSI: 00000000200007c0 RDI: 000000000000000a
RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000059 R14: 00000000004c2f70 R15: 000000000076bf0c
Code: e8 41 39 40 24 76 24 41 0f af 40 14 4c 01 c8 48 29 c7 49 63 40 74 48 39 f8 72 08 48 29 f8 48 39 f0 73 05 49 8b 40 58 c3 31 c0 c3 <0f> 0b 89 e9 48 c7 c7 40 ef 8d 87 89 74 24 0c 4c 8d 44 24 04 81 
RIP: __check_heap_object+0x58/0x5a mm/slab.c:4427 RSP: ffff88804cfafbe8
Buffer I/O error on dev loop1, logical block 53, lost async page write
attempt to access beyond end of device
loop1: rw=2049, want=55, limit=39
Buffer I/O error on dev loop1, logical block 54, lost async page write
attempt to access beyond end of device
loop1: rw=2049, want=56, limit=39
Buffer I/O error on dev loop1, logical block 55, lost async page write
attempt to access beyond end of device
loop1: rw=2049, want=57, limit=39
Buffer I/O error on dev loop1, logical block 56, lost async page write
attempt to access beyond end of device
loop1: rw=2049, want=78, limit=39
Buffer I/O error on dev loop1, logical block 77, lost async page write
attempt to access beyond end of device
loop1: rw=2049, want=79, limit=39
Buffer I/O error on dev loop1, logical block 78, lost async page write
attempt to access beyond end of device
loop1: rw=2049, want=80, limit=39
Buffer I/O error on dev loop1, logical block 79, lost async page write
---[ end trace 7d9caea585d0268f ]---
attempt to access beyond end of device