------------[ cut here ]------------ kernel BUG at mm/slab.c:4421! invalid opcode: 0000 [#1] SMP KASAN CPU: 1 PID: 11584 Comm: syz-executor4 Not tainted 4.18.0-rc3+ #58 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__check_heap_object+0xa7/0xb5 mm/slab.c:4446 Code: 48 c7 c7 e0 8b c0 88 e8 87 7a 08 00 5d c3 41 8b 91 04 01 00 00 48 29 c7 48 39 d7 77 be 48 01 d0 48 29 c8 48 39 f0 72 b3 5d c3 <0f> 0b 48 c7 c7 e0 8b c0 88 e8 6d 81 08 00 44 89 e1 4c 8d 45 c4 48 RSP: 0018:ffff88019b0c7a10 EFLAGS: 00010246 RAX: 0000000000000001 RBX: 1ffff10033618f49 RCX: 0000000000000015 RDX: ffff88018f800080 RSI: 00000000000003f0 RDI: ffff88018fbffffc RBP: ffff88019b0c7a10 R08: ffff880195336100 R09: ffff8801da802c80 R10: 00000000003fdf84 R11: 0000000000000001 R12: ffff88018fbffffc R13: 00000000000003f0 R14: 0000000000000001 R15: ffffea00063e0000 FS: 00007fda16f22700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd87de0470 CR3: 00000001ad949000 CR4: 00000000001406e0 DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: check_heap_object mm/usercopy.c:236 [inline] __check_object_size+0x4db/0x5f2 mm/usercopy.c:259 check_object_size include/linux/thread_info.h:119 [inline] check_copy_size include/linux/thread_info.h:150 [inline] copy_to_user include/linux/uaccess.h:154 [inline] bpf_test_finish.isra.7+0xd9/0x1f0 net/bpf/test_run.c:59 bpf_prog_test_run_skb+0x7d7/0xa30 net/bpf/test_run.c:144 bpf_prog_test_run+0x130/0x1a0 kernel/bpf/syscall.c:1686 __do_sys_bpf kernel/bpf/syscall.c:2323 [inline] __se_sys_bpf kernel/bpf/syscall.c:2267 [inline] __x64_sys_bpf+0x3d8/0x510 kernel/bpf/syscall.c:2267 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455ab9 Code: 1d ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 eb b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fda16f21c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007fda16f226d4 RCX: 0000000000455ab9 RDX: 0000000000000028 RSI: 0000000020000140 RDI: 000000000000000a RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004bb71f R14: 00000000004c8b00 R15: 0000000000000000 Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) ---[ end trace 5b999089015cf0db ]--- RIP: 0010:__check_heap_object+0xa7/0xb5 mm/slab.c:4446 Code: 48 c7 c7 e0 8b c0 88 e8 87 7a 08 00 5d c3 41 8b 91 04 01 00 00 48 29 c7 48 39 d7 77 be 48 01 d0 48 29 c8 48 39 f0 72 b3 5d c3 <0f> 0b 48 c7 c7 e0 8b c0 88 e8 6d 81 08 00 44 89 e1 4c 8d 45 c4 48 RSP: 0018:ffff88019b0c7a10 EFLAGS: 00010246 RAX: 0000000000000001 RBX: 1ffff10033618f49 RCX: 0000000000000015 RDX: ffff88018f800080 RSI: 00000000000003f0 RDI: ffff88018fbffffc RBP: ffff88019b0c7a10 R08: ffff880195336100 R09: ffff8801da802c80 R10: 00000000003fdf84 R11: 0000000000000001 R12: ffff88018fbffffc R13: 00000000000003f0 R14: 0000000000000001 R15: ffffea00063e0000 FS: 00007fda16f22700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd87de0470 CR3: 00000001ad949000 CR4: 00000000001406e0 DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600