head: 05ffc00000000209 fffffdffc3c40001 00000000ffffffff 00000000ffffffff head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000200 page dumped because: VM_BUG_ON_PAGE(page->compound_info & 1) ------------[ cut here ]------------ kernel BUG at ./include/linux/page-flags.h:354! Internal error: Oops - BUG: 00000000f2000800 [#1] SMP Modules linked in: CPU: 0 UID: 0 PID: 5451 Comm: syz.0.180 Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 pstate: 634000c5 (nZCv daIF +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : folio_flags+0xc8/0xe4 include/linux/page-flags.h:354 lr : folio_flags+0xc8/0xe4 include/linux/page-flags.h:354 sp : ffff8000924a7450 x29: ffff8000924a7450 x28: fffffdffc3c46400 x27: 1fffffbff8788000 x26: 0000000000000400 x25: fffffdffc3c40000 x24: dfff800000000000 x23: 0000000000000010 x22: fffffdffc3c40001 x21: dfff800000000000 x20: 0000000000000001 x19: fffffdffc3c46400 x18: 00000000ffffffff x17: 3030303030303020 x16: 6666666666666666 x15: 3030303030303030 x14: 0000000000000000 x13: 0000000000000001 x12: ffff0000d8ea57c0 x11: 0000000000000000 x10: 0000000000080000 x9 : 072b05004a5d7b00 x8 : 072b05004a5d7b00 x7 : ffff80008048d694 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000000 x3 : ffff8000804983c8 x2 : 0000000100000002 x1 : ffff0000d8ea57c0 x0 : 0000000000000001 Call trace: folio_flags+0xc8/0xe4 include/linux/page-flags.h:354 (P) folio_set_has_hwpoisoned include/linux/page-flags.h:903 [inline] __split_folio_to_order mm/huge_memory.c:3592 [inline] __split_unmapped_folio mm/huge_memory.c:3719 [inline] __folio_freeze_and_split_unmapped+0x10a8/0x2f0c mm/huge_memory.c:3874 __folio_split+0x928/0x11f8 mm/huge_memory.c:4096 __split_huge_page_to_list_to_order+0x78/0x8c mm/huge_memory.c:4240 split_huge_page_to_list_to_order include/linux/huge_mm.h:415 [inline] split_huge_page_to_order include/linux/huge_mm.h:419 [inline] try_to_split_thp_page+0x120/0x2fc mm/memory-failure.c:1663 memory_failure+0x1bdc/0x2730 mm/memory-failure.c:2460 madvise_inject_error mm/madvise.c:1480 [inline] madvise_do_behavior+0x2c8/0x7c0 mm/madvise.c:1897 do_madvise+0x28c/0x2f0 mm/madvise.c:2005 __do_sys_madvise mm/madvise.c:2014 [inline] __se_sys_madvise mm/madvise.c:2012 [inline] __arm64_sys_madvise+0xa4/0xc0 mm/madvise.c:2012 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xec/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x4c/0x5c arch/arm64/kernel/syscall.c:140 el0_svc+0x64/0x260 arch/arm64/kernel/entry-common.c:736 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 Code: d002f461 911c8021 aa1303e0 97d335bf (d4210000) ---[ end trace 0000000000000000 ]---