__kernel_write_iter+0x318/0xa90 fs/read_write.c:612
 __kernel_write fs/read_write.c:632 [inline]
 kernel_write fs/read_write.c:653 [inline]
 kernel_write+0x1f6/0x6c0 fs/read_write.c:643
 process_sysctl_arg+0x22c/0x5f0 fs/proc/proc_sysctl.c:1684
 parse_one kernel/params.c:153 [inline]
 parse_args+0x591/0x8c0 kernel/params.c:186
 do_sysctl_args+0xc8/0x160 fs/proc/proc_sysctl.c:1716
 kernel_init+0x84/0x2b0 init/main.c:1480
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148
page_owner free stack trace missing
------------[ cut here ]------------
kernel BUG at mm/filemap.c:154!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 1 UID: 0 PID: 16659 Comm: syz.6.2321 Not tainted 6.14.0-rc5-syzkaller-00214-g21e4543a2e2f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:filemap_unaccount_folio+0xef/0x860 mm/filemap.c:154
Code: 97 34 ca ff 4c 8d 6b 30 31 ff 89 ee e8 8a 2f ca ff 85 ed 7e 17 e8 81 34 ca ff 48 c7 c6 20 9c 78 8b 48 89 df e8 e2 93 11 00 90 <0f> 0b e8 6a 34 ca ff 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1
RSP: 0018:ffffc9000feb7610 EFLAGS: 00010093
RAX: 0000000000000000 RBX: ffffea0005008000 RCX: ffffc9000feb74b8
RDX: ffff888071d82440 RSI: ffffffff81efac2e RDI: ffff888071d82884
RBP: 0000000000000001 R08: 0000000000000000 R09: fffffbfff20c4c42
R10: ffffffff90626217 R11: fffffffffffdd980 R12: ffff8881456e6fb0
R13: ffffea0005008030 R14: 0000000000000002 R15: ffffea0005008000
FS:  00007f3af69686c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe5ff3bfc0 CR3: 0000000068a90000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __filemap_remove_folio mm/filemap.c:223 [inline]
 filemap_remove_folio+0xf1/0x250 mm/filemap.c:256
 hugetlb_delete_from_page_cache fs/hugetlbfs/inode.c:332 [inline]
 remove_inode_single_folio fs/hugetlbfs/inode.c:537 [inline]
 remove_inode_hugepages+0x71c/0xeb0 fs/hugetlbfs/inode.c:594
 hugetlbfs_punch_hole fs/hugetlbfs/inode.c:717 [inline]
 hugetlbfs_fallocate+0xe45/0x11d0 fs/hugetlbfs/inode.c:743
 vfs_fallocate+0x60d/0x10d0 fs/open.c:338
 madvise_remove mm/madvise.c:1034 [inline]
 madvise_vma_behavior+0x1ae3/0x1de0 mm/madvise.c:1269
 madvise_walk_vmas+0x1cf/0x2c0 mm/madvise.c:1511
 do_madvise+0x366/0x7c0 mm/madvise.c:1698
 __do_sys_madvise mm/madvise.c:1714 [inline]
 __se_sys_madvise mm/madvise.c:1712 [inline]
 __x64_sys_madvise+0xa9/0x110 mm/madvise.c:1712
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3af5b8d169
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3af6968038 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007f3af5da6160 RCX: 00007f3af5b8d169
RDX: 0000000000000009 RSI: 0000000000600002 RDI: 0000400000000000
RBP: 00007f3af5c0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f3af5da6160 R15: 00007ffe5ff3cb48
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:filemap_unaccount_folio+0xef/0x860 mm/filemap.c:154
Code: 97 34 ca ff 4c 8d 6b 30 31 ff 89 ee e8 8a 2f ca ff 85 ed 7e 17 e8 81 34 ca ff 48 c7 c6 20 9c 78 8b 48 89 df e8 e2 93 11 00 90 <0f> 0b e8 6a 34 ca ff 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1
RSP: 0018:ffffc9000feb7610 EFLAGS: 00010093
RAX: 0000000000000000 RBX: ffffea0005008000 RCX: ffffc9000feb74b8
RDX: ffff888071d82440 RSI: ffffffff81efac2e RDI: ffff888071d82884
RBP: 0000000000000001 R08: 0000000000000000 R09: fffffbfff20c4c42
R10: ffffffff90626217 R11: fffffffffffdd980 R12: ffff8881456e6fb0
R13: ffffea0005008030 R14: 0000000000000002 R15: ffffea0005008000
FS:  00007f3af69686c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe5ff3bfc0 CR3: 0000000068a90000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400