entry_SYSCALL_64_after_hwframe+0x44/0xae ------------[ cut here ]------------ WARNING: CPU: 0 PID: 20543 at mm/huge_memory.c:2301 unmap_page mm/huge_memory.c:2301 [inline] WARNING: CPU: 0 PID: 20543 at mm/huge_memory.c:2301 split_huge_page_to_list+0x24ff/0x3bb0 mm/huge_memory.c:2676 Modules linked in: CPU: 1 PID: 20543 Comm: syz-executor.3 Not tainted 5.15.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:unmap_page mm/huge_memory.c:2301 [inline] RIP: 0010:split_huge_page_to_list+0x24ff/0x3bb0 mm/huge_memory.c:2676 Code: 89 de e8 24 5b b5 ff 84 db 0f 85 7d e1 ff ff e8 d7 54 b5 ff 48 c7 c6 60 5c 98 89 48 89 ef e8 18 1d e9 ff c6 05 03 15 99 0b 01 <0f> 0b e9 5b e1 ff ff bb 02 00 00 00 e9 cd f0 ff ff e8 ab 54 b5 ff RSP: 0018:ffffc9000497f288 EFLAGS: 00010246 RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc9000f3c5000 RDX: 0000000000040000 RSI: ffffffff81c0b718 RDI: 0000000000000003 RBP: ffffea0002348000 R08: 0000000000000029 R09: 00000000ffffffff R10: ffffffff88f44b19 R11: 00000000ffffffff R12: ffff8881401452d8 R13: ffffea0002348008 R14: ffffea0002348000 R15: 0000000000000000 FS: 00007fe23367d700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000000 CR3: 00000000a0b62000 CR4: 0000000000350ee0 Call Trace: split_huge_page include/linux/huge_mm.h:192 [inline] deferred_split_scan+0x5fa/0xbd0 mm/huge_memory.c:2836 do_shrink_slab+0x42d/0xbd0 mm/vmscan.c:758 shrink_slab+0x17c/0x6e0 mm/vmscan.c:918 drop_slab_node+0x9c/0x160 mm/vmscan.c:953 drop_slab+0x97/0x130 mm/vmscan.c:963 drop_caches_sysctl_handler+0xf6/0x110 fs/drop_caches.c:66 proc_sys_call_handler+0x346/0x630 fs/proc/proc_sysctl.c:586 call_write_iter include/linux/fs.h:2163 [inline] do_iter_readv_writev+0x472/0x750 fs/read_write.c:729 do_iter_write+0x188/0x710 fs/read_write.c:855 vfs_iter_write+0x70/0xa0 fs/read_write.c:896 iter_file_splice_write+0x71b/0xc60 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+0xae9/0x1240 fs/read_write.c:1249 __do_sys_sendfile64 fs/read_write.c:1314 [inline] __se_sys_sendfile64 fs/read_write.c:1300 [inline] __x64_sys_sendfile64+0x1cc/0x210 fs/read_write.c:1300 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: 0033:0x7fe236106739 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:00007fe23367d188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007fe23620af80 RCX: 00007fe236106739 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000005 RBP: 00007fe236160cc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000246 R12: 00007fe23620af80 R13: 00007ffedede4f8f R14: 00007fe23367d300 R15: 0000000000022000