bpf_prog_load kernel/bpf/syscall.c:2301 [inline] __sys_bpf+0x11181/0x126e0 kernel/bpf/syscall.c:4587 __do_sys_bpf kernel/bpf/syscall.c:4691 [inline] __se_sys_bpf kernel/bpf/syscall.c:4689 [inline] __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4689 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 page_owner free stack trace missing ------------[ cut here ]------------ WARNING: CPU: 0 PID: 15465 at mm/huge_memory.c:2327 unmap_page mm/huge_memory.c:2327 [inline] WARNING: CPU: 0 PID: 15465 at mm/huge_memory.c:2327 split_huge_page_to_list+0x11dd/0x1370 mm/huge_memory.c:2700 Modules linked in: CPU: 0 PID: 15465 Comm: syz-executor.3 Not tainted 5.14.0-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+0x11dd/0x1370 mm/huge_memory.c:2700 Code: f7 48 c7 c6 e0 73 5d 8a e8 90 47 e9 ff 0f 0b e8 59 0e b3 ff 4c 89 ef 48 c7 c6 80 75 5d 8a e8 7a 47 e9 ff c6 05 bf 76 fa 0b 01 <0f> 0b e9 d8 f4 ff ff e8 37 0e b3 ff 4c 89 ef e8 af 25 f5 ff 48 89 RSP: 0018:ffffc900100df080 EFLAGS: 00010246 RAX: d1ca434a70c4ba00 RBX: ffffc900100df120 RCX: 0000000000040000 RDX: ffffc9000b29c000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffffc900100df1f0 R08: ffffffff81d1dc24 R09: ffffed10173857a8 R10: ffffed10173857a8 R11: 0000000000000000 R12: dffffc0000000000 R13: ffffea0001ef8000 R14: ffffea0001ef8018 R15: ffffea0001ef8008 FS: 00007f89bf12c700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ab4753b160 CR3: 000000009f997000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: split_huge_page include/linux/huge_mm.h:192 [inline] deferred_split_scan+0x66f/0xaf0 mm/huge_memory.c:2860 do_shrink_slab+0x4e1/0xa00 mm/vmscan.c:712 shrink_slab+0x1e6/0x340 mm/vmscan.c:872 drop_slab_node mm/vmscan.c:906 [inline] drop_slab+0x175/0x250 mm/vmscan.c:916 drop_caches_sysctl_handler+0xb1/0x160 fs/drop_caches.c:65 proc_sys_call_handler+0x682/0x8f0 fs/proc/proc_sysctl.c:586 do_iter_readv_writev+0x552/0x750 include/linux/fs.h:2152 do_iter_write+0x21e/0x7b0 fs/read_write.c:855 iter_file_splice_write+0x7c1/0xf30 fs/splice.c:689 do_splice_from fs/splice.c:767 [inline] direct_splice_actor+0xe6/0x1c0 fs/splice.c:936 splice_direct_to_actor+0x529/0xd00 fs/splice.c:891 do_splice_direct+0x282/0x3e0 fs/splice.c:979 do_sendfile+0x628/0x1020 fs/read_write.c:1249 __do_sys_sendfile64 fs/read_write.c:1314 [inline] __se_sys_sendfile64+0x145/0x1a0 fs/read_write.c:1300 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665f9 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:00007f89bf12c188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665f9 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000006 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffd72aef88f R14: 00007f89bf12c300 R15: 0000000000022000