copy_to_user include/linux/uaccess.h:200 [inline]
 bpf_verifier_vlog+0x1b2/0x2e0 kernel/bpf/verifier.c:308
 verbose+0x1c8/0x270 kernel/bpf/verifier.c:353
 print_verification_stats kernel/bpf/verifier.c:12878 [inline]
 bpf_check+0x2c13/0xbd20 kernel/bpf/verifier.c:13477
 bpf_prog_load+0xe57/0x21f0 kernel/bpf/syscall.c:2274
 __sys_bpf+0x65a/0x53b0 kernel/bpf/syscall.c:4469
page_owner free stack trace missing
------------[ cut here ]------------
WARNING: CPU: 0 PID: 17096 at mm/huge_memory.c:2327 unmap_page mm/huge_memory.c:2327 [inline]
WARNING: CPU: 0 PID: 17096 at mm/huge_memory.c:2327 split_huge_page_to_list+0x25eb/0x3e60 mm/huge_memory.c:2700
Modules linked in:
CPU: 1 PID: 17096 Comm: syz-executor.2 Not tainted 5.14.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:unmap_page mm/huge_memory.c:2327 [inline]
RIP: 0010:split_huge_page_to_list+0x25eb/0x3e60 mm/huge_memory.c:2700
Code: 89 de e8 d8 67 b6 ff 84 db 0f 85 54 e0 ff ff e8 8b 61 b6 ff 48 c7 c6 20 0d 98 89 48 89 ef e8 ec 29 e9 ff c6 05 9a c6 98 0b 01 <0f> 0b e9 32 e0 ff ff bb 02 00 00 00 e9 64 ef ff ff e8 5f 61 b6 ff
RSP: 0018:ffffc9001716f288 EFLAGS: 00010246
RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc9000d860000
RDX: 0000000000040000 RSI: ffffffff81bf4784 RDI: 0000000000000003
RBP: ffffea0002390000 R08: 0000000000000023 R09: 00000000ffffffff
R10: ffffffff88ea697e R11: 00000000ffffffff R12: ffff8881401452d8
R13: ffffea0002390008 R14: ffffea0002390000 R15: 0000000000000000
FS:  00007f0983c25700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007faec69ab718 CR3: 0000000037e42000 CR4: 0000000000350ee0
Call Trace:
 split_huge_page include/linux/huge_mm.h:192 [inline]
 deferred_split_scan+0x5fa/0xbd0 mm/huge_memory.c:2860
 do_shrink_slab+0x42d/0xbd0 mm/vmscan.c:709
 shrink_slab+0x17c/0x6e0 mm/vmscan.c:869
 drop_slab_node+0x97/0x130 mm/vmscan.c:903
 drop_slab+0x97/0x130 mm/vmscan.c:913
 drop_caches_sysctl_handler+0xf6/0x110 fs/drop_caches.c:65
 proc_sys_call_handler+0x346/0x630 fs/proc/proc_sysctl.c:586
 call_write_iter include/linux/fs.h:2114 [inline]
 do_iter_readv_writev+0x46f/0x740 fs/read_write.c:740
 do_iter_write+0x188/0x670 fs/read_write.c:866
 vfs_iter_write+0x70/0xa0 fs/read_write.c:907
 iter_file_splice_write+0x723/0xc70 fs/splice.c:689
 do_splice_from fs/splice.c:767 [inline]
 direct_splice_actor+0x110/0x180 fs/splice.c:936
 splice_direct_to_actor+0x34b/0x8c0 fs/splice.c:891
 do_splice_direct+0x1b3/0x280 fs/splice.c:979
 do_sendfile+0x9f0/0x1120 fs/read_write.c:1260
 __do_sys_sendfile64 fs/read_write.c:1325 [inline]
 __se_sys_sendfile64 fs/read_write.c:1311 [inline]
 __x64_sys_sendfile64+0x1cc/0x210 fs/read_write.c:1311
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665e9
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:00007f0983c25188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000004
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffd5a989e6f R14: 00007f0983c25300 R15: 0000000000022000