head: 05ffc0000029080d ffff800020707c50 ffff800020707c50 ffff0000d5984001
head: 0000000400000200 0000000000000000 0000003bffffffff ffff0000c9354000
page dumped because: VM_BUG_ON_PAGE(1 && PageTail(page))
------------[ cut here ]------------
kernel BUG at include/linux/page-flags.h:431!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 5073 Comm: syz.2.18 Not tainted 5.15.179-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : TestClearPageMlocked include/linux/page-flags.h:431 [inline]
pc : clear_page_mlock+0x57c/0x64c mm/mlock.c:64
lr : TestClearPageMlocked include/linux/page-flags.h:431 [inline]
lr : clear_page_mlock+0x57c/0x64c mm/mlock.c:64
sp : ffff800020707340
x29: ffff800020707340 x28: 1ffff000040e0eb0 x27: 1fffff8000798e41
x26: 1fffff8000798e41 x25: dfff800000000000 x24: 0000000000000000
x23: fffffc0003cc0001 x22: 0000000000000001 x21: fffffc0003cc0001
x20: fffffc0003cc7208 x19: fffffc0003cc7200 x18: 0000000000000002
x17: 0000000000000000 x16: ffff800011b5ac80 x15: 00000000ffffffff
x14: ffff0000e888b680 x13: 0000000000000001 x12: 0000000000000001
x11: 0000000000000001 x10: 0000000000000000 x9 : b74bce79f88c0f00
x8 : b74bce79f88c0f00 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff8000207067b8 x4 : ffff800014c4fe40 x3 : ffff800008557710
x2 : 0000000000000001 x1 : 0000000000000001 x0 : 0000000000000038
Call trace:
 TestClearPageMlocked include/linux/page-flags.h:431 [inline]
 clear_page_mlock+0x57c/0x64c mm/mlock.c:64
 page_remove_rmap+0xbf8/0xfe8 mm/rmap.c:1375
 try_to_migrate_one+0xd20/0x1178 mm/rmap.c:1938
 rmap_walk_anon+0x2f4/0x4bc mm/rmap.c:2323
 try_to_migrate+0x47c/0x570
 __unmap_and_move mm/migrate.c:1072 [inline]
 unmap_and_move mm/migrate.c:1218 [inline]
 migrate_pages+0x19f8/0x3280 mm/migrate.c:1495
 do_mbind mm/mempolicy.c:1325 [inline]
 kernel_mbind mm/mempolicy.c:1472 [inline]
 __do_sys_mbind mm/mempolicy.c:1479 [inline]
 __se_sys_mbind mm/mempolicy.c:1475 [inline]
 __arm64_sys_mbind+0x1004/0x13ac mm/mempolicy.c:1475
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Code: 9004aa61 913b8021 aa1303e0 97ff47b5 (d4210000) 
---[ end trace 51919d13b15506dd ]---