BUG: Bad page state in process syz.2.656  pfn:50a00
page: refcount:2 mapcount:1 mapping:0000000000000000 index:0x20000 pfn:0x50a00
flags: 0xfff00000028019(locked|uptodate|dirty|mappedtodisk|swapbacked|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000028019 dead000000000100 dead000000000122 0000000000000000
raw: 0000000000020000 0000000000000000 0000000200000000 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Movable, gfp_mask 0x1c24ca(GFP_TRANSHUGE), pid 8174, tgid 8170 (syz.2.656), ts 301670133585, free_ts 229926046969
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1518
 prep_new_page mm/page_alloc.c:1526 [inline]
 get_page_from_freelist+0x3004/0x30c0 mm/page_alloc.c:3477
 __alloc_pages_noprof+0x29e/0x780 mm/page_alloc.c:4744
 __folio_alloc_noprof+0x14/0x130 mm/page_alloc.c:4776
 alloc_charge_folio+0x4a3/0xae0 mm/khugepaged.c:1070
 collapse_huge_page mm/khugepaged.c:1114 [inline]
 hpage_collapse_scan_pmd+0x17b3/0x4dc0 mm/khugepaged.c:1420
 madvise_collapse+0x50e/0xcf0 mm/khugepaged.c:2763
 madvise_vma_behavior mm/madvise.c:1097 [inline]
 madvise_walk_vmas mm/madvise.c:1271 [inline]
 do_madvise+0xcc6/0x4760 mm/madvise.c:1467
 __do_sys_madvise mm/madvise.c:1484 [inline]
 __se_sys_madvise mm/madvise.c:1482 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1482
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 7337 tgid 7329 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1099 [inline]
 free_unref_folios+0xe5c/0x1780 mm/page_alloc.c:2700
 folios_put_refs+0x76e/0x860 mm/swap.c:1007
 free_pages_and_swap_cache+0x2ea/0x690 mm/swap_state.c:332
 __tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline]
 tlb_batch_pages_flush mm/mmu_gather.c:149 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:366 [inline]
 tlb_flush_mmu+0x3a3/0x680 mm/mmu_gather.c:373
 zap_pte_range mm/memory.c:1697 [inline]
 zap_pmd_range mm/memory.c:1736 [inline]
 zap_pud_range mm/memory.c:1765 [inline]
 zap_p4d_range mm/memory.c:1786 [inline]
 unmap_page_range+0x38d9/0x42c0 mm/memory.c:1807
 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1897
 exit_mmap+0x275/0xc40 mm/mmap.c:1921
 __mmput+0x115/0x390 kernel/fork.c:1347
 exit_mm+0x220/0x310 kernel/exit.c:571
 do_exit+0x9b2/0x28e0 kernel/exit.c:926
 do_group_exit+0x207/0x2c0 kernel/exit.c:1088
 get_signal+0x176f/0x1810 kernel/signal.c:2936
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 0 UID: 0 PID: 8177 Comm: syz.2.656 Not tainted 6.11.0-rc3-next-20240816-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 bad_page+0x18e/0x200 mm/page_alloc.c:502
 free_page_is_bad mm/page_alloc.c:919 [inline]
 free_pages_prepare mm/page_alloc.c:1091 [inline]
 free_unref_folios+0xfe1/0x1780 mm/page_alloc.c:2700
 __split_huge_page+0x3dba/0x5350 mm/huge_memory.c:3275
 split_huge_page_to_list_to_order+0x13c2/0x1ee0 mm/huge_memory.c:3531
 split_folio_to_list_to_order include/linux/huge_mm.h:617 [inline]
 shrink_folio_list+0x32df/0x8d10 mm/vmscan.c:1254
 reclaim_folio_list mm/vmscan.c:2164 [inline]
 reclaim_pages+0x916/0xc60 mm/vmscan.c:2200
 madvise_cold_or_pageout_pte_range+0x22e6/0x32a0 mm/madvise.c:426
 walk_pmd_range mm/pagewalk.c:106 [inline]
 walk_pud_range mm/pagewalk.c:178 [inline]
 walk_p4d_range mm/pagewalk.c:211 [inline]
 walk_pgd_range+0xb81/0x17f0 mm/pagewalk.c:246
 __walk_page_range+0x132/0x720 mm/pagewalk.c:348
 walk_page_range+0x58f/0x7c0 mm/pagewalk.c:474
 madvise_pageout_page_range mm/madvise.c:609 [inline]
 madvise_pageout mm/madvise.c:636 [inline]
 madvise_vma_behavior mm/madvise.c:1042 [inline]
 madvise_walk_vmas mm/madvise.c:1271 [inline]
 do_madvise+0x3384/0x4760 mm/madvise.c:1467
 __do_sys_madvise mm/madvise.c:1484 [inline]
 __se_sys_madvise mm/madvise.c:1482 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1482
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fde4b979e79
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:00007fde4c780038 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007fde4bb16130 RCX: 00007fde4b979e79
RDX: 0000000000000015 RSI: 0000000000600000 RDI: 0000000020000000
RBP: 00007fde4b9e7916 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fde4bb16130 R15: 00007fff39f021b8
 </TASK>
BUG: Bad page state in process syz.2.656  pfn:50a00
page: refcount:2 mapcount:1 mapping:0000000000000000 index:0x20000 pfn:0x50a00
flags: 0xfff00000028019(locked|uptodate|dirty|mappedtodisk|swapbacked|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000028019 dead000000000100 dead000000000122 0000000000000000
raw: 0000000000020000 0000000000000000 0000000200000000 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Movable, gfp_mask 0x1c24ca(GFP_TRANSHUGE), pid 8174, tgid 8170 (syz.2.656), ts 301670133585, free_ts 229926046969
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1518
 prep_new_page mm/page_alloc.c:1526 [inline]
 get_page_from_freelist+0x3004/0x30c0 mm/page_alloc.c:3477
 __alloc_pages_noprof+0x29e/0x780 mm/page_alloc.c:4744
 __folio_alloc_noprof+0x14/0x130 mm/page_alloc.c:4776
 alloc_charge_folio+0x4a3/0xae0 mm/khugepaged.c:1070
 collapse_huge_page mm/khugepaged.c:1114 [inline]
 hpage_collapse_scan_pmd+0x17b3/0x4dc0 mm/khugepaged.c:1420
 madvise_collapse+0x50e/0xcf0 mm/khugepaged.c:2763
 madvise_vma_behavior mm/madvise.c:1097 [inline]
 madvise_walk_vmas mm/madvise.c:1271 [inline]
 do_madvise+0xcc6/0x4760 mm/madvise.c:1467
 __do_sys_madvise mm/madvise.c:1484 [inline]
 __se_sys_madvise mm/madvise.c:1482 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1482
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 7337 tgid 7329 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1099 [inline]
 free_unref_folios+0xe5c/0x1780 mm/page_alloc.c:2700
 folios_put_refs+0x76e/0x860 mm/swap.c:1007
 free_pages_and_swap_cache+0x2ea/0x690 mm/swap_state.c:332
 __tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline]
 tlb_batch_pages_flush mm/mmu_gather.c:149 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:366 [inline]
 tlb_flush_mmu+0x3a3/0x680 mm/mmu_gather.c:373
 zap_pte_range mm/memory.c:1697 [inline]
 zap_pmd_range mm/memory.c:1736 [inline]
 zap_pud_range mm/memory.c:1765 [inline]
 zap_p4d_range mm/memory.c:1786 [inline]
 unmap_page_range+0x38d9/0x42c0 mm/memory.c:1807
 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1897
 exit_mmap+0x275/0xc40 mm/mmap.c:1921
 __mmput+0x115/0x390 kernel/fork.c:1347
 exit_mm+0x220/0x310 kernel/exit.c:571
 do_exit+0x9b2/0x28e0 kernel/exit.c:926
 do_group_exit+0x207/0x2c0 kernel/exit.c:1088
 get_signal+0x176f/0x1810 kernel/signal.c:2936
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 0 UID: 0 PID: 8177 Comm: syz.2.656 Tainted: G    B              6.11.0-rc3-next-20240816-syzkaller #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 bad_page+0x18e/0x200 mm/page_alloc.c:502
 free_page_is_bad mm/page_alloc.c:919 [inline]
 free_pages_prepare mm/page_alloc.c:1091 [inline]
 free_unref_folios+0xfe1/0x1780 mm/page_alloc.c:2700
 __split_huge_page+0x3dba/0x5350 mm/huge_memory.c:3275
 split_huge_page_to_list_to_order+0x13c2/0x1ee0 mm/huge_memory.c:3531
 split_folio_to_list_to_order include/linux/huge_mm.h:617 [inline]
 shrink_folio_list+0x32df/0x8d10 mm/vmscan.c:1254
 reclaim_folio_list mm/vmscan.c:2164 [inline]
 reclaim_pages+0x916/0xc60 mm/vmscan.c:2200
 madvise_cold_or_pageout_pte_range+0x22e6/0x32a0 mm/madvise.c:426
 walk_pmd_range mm/pagewalk.c:106 [inline]
 walk_pud_range mm/pagewalk.c:178 [inline]
 walk_p4d_range mm/pagewalk.c:211 [inline]
 walk_pgd_range+0xb81/0x17f0 mm/pagewalk.c:246
 __walk_page_range+0x132/0x720 mm/pagewalk.c:348
 walk_page_range+0x58f/0x7c0 mm/pagewalk.c:474
 madvise_pageout_page_range mm/madvise.c:609 [inline]
 madvise_pageout mm/madvise.c:636 [inline]
 madvise_vma_behavior mm/madvise.c:1042 [inline]
 madvise_walk_vmas mm/madvise.c:1271 [inline]
 do_madvise+0x3384/0x4760 mm/madvise.c:1467
 __do_sys_madvise mm/madvise.c:1484 [inline]
 __se_sys_madvise mm/madvise.c:1482 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1482
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fde4b979e79
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:00007fde4c780038 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007fde4bb16130 RCX: 00007fde4b979e79
RDX: 0000000000000015 RSI: 0000000000600000 RDI: 0000000020000000
RBP: 00007fde4b9e7916 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fde4bb16130 R15: 00007fff39f021b8
 </TASK>
BUG: Bad page state in process syz.2.656  pfn:50a00
page: refcount:2 mapcount:1 mapping:0000000000000000 index:0x20000 pfn:0x50a00
flags: 0xfff00000028019(locked|uptodate|dirty|mappedtodisk|swapbacked|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000028019 dead000000000100 dead000000000122 0000000000000000
raw: 0000000000020000 0000000000000000 0000000200000000 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Movable, gfp_mask 0x1c24ca(GFP_TRANSHUGE), pid 8174, tgid 8170 (syz.2.656), ts 301670133585, free_ts 229926046969
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1518
 prep_new_page mm/page_alloc.c:1526 [inline]
 get_page_from_freelist+0x3004/0x30c0 mm/page_alloc.c:3477
 __alloc_pages_noprof+0x29e/0x780 mm/page_alloc.c:4744
 __folio_alloc_noprof+0x14/0x130 mm/page_alloc.c:4776
 alloc_charge_folio+0x4a3/0xae0 mm/khugepaged.c:1070
 collapse_huge_page mm/khugepaged.c:1114 [inline]
 hpage_collapse_scan_pmd+0x17b3/0x4dc0 mm/khugepaged.c:1420
 madvise_collapse+0x50e/0xcf0 mm/khugepaged.c:2763
 madvise_vma_behavior mm/madvise.c:1097 [inline]
 madvise_walk_vmas mm/madvise.c:1271 [inline]
 do_madvise+0xcc6/0x4760 mm/madvise.c:1467
 __do_sys_madvise mm/madvise.c:1484 [inline]
 __se_sys_madvise mm/madvise.c:1482 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1482
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 7337 tgid 7329 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1099 [inline]
 free_unref_folios+0xe5c/0x1780 mm/page_alloc.c:2700
 folios_put_refs+0x76e/0x860 mm/swap.c:1007
 free_pages_and_swap_cache+0x2ea/0x690 mm/swap_state.c:332
 __tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline]
 tlb_batch_pages_flush mm/mmu_gather.c:149 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:366 [inline]
 tlb_flush_mmu+0x3a3/0x680 mm/mmu_gather.c:373
 zap_pte_range mm/memory.c:1697 [inline]
 zap_pmd_range mm/memory.c:1736 [inline]
 zap_pud_range mm/memory.c:1765 [inline]
 zap_p4d_range mm/memory.c:1786 [inline]
 unmap_page_range+0x38d9/0x42c0 mm/memory.c:1807
 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1897
 exit_mmap+0x275/0xc40 mm/mmap.c:1921
 __mmput+0x115/0x390 kernel/fork.c:1347
 exit_mm+0x220/0x310 kernel/exit.c:571
 do_exit+0x9b2/0x28e0 kernel/exit.c:926
 do_group_exit+0x207/0x2c0 kernel/exit.c:1088
 get_signal+0x176f/0x1810 kernel/signal.c:2936
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 0 UID: 0 PID: 8177 Comm: syz.2.656 Tainted: G    B              6.11.0-rc3-next-20240816-syzkaller #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 bad_page+0x18e/0x200 mm/page_alloc.c:502
 free_page_is_bad mm/page_alloc.c:919 [inline]
 free_pages_prepare mm/page_alloc.c:1091 [inline]
 free_unref_folios+0xfe1/0x1780 mm/page_alloc.c:2700
 __split_huge_page+0x3dba/0x5350 mm/huge_memory.c:3275
 split_huge_page_to_list_to_order+0x13c2/0x1ee0 mm/huge_memory.c:3531
 split_folio_to_list_to_order include/linux/huge_mm.h:617 [inline]
 shrink_folio_list+0x32df/0x8d10 mm/vmscan.c:1254
 reclaim_folio_list mm/vmscan.c:2164 [inline]
 reclaim_pages+0x916/0xc60 mm/vmscan.c:2200
 madvise_cold_or_pageout_pte_range+0x22e6/0x32a0 mm/madvise.c:426
 walk_pmd_range mm/pagewalk.c:106 [inline]
 walk_pud_range mm/pagewalk.c:178 [inline]
 walk_p4d_range mm/pagewalk.c:211 [inline]
 walk_pgd_range+0xb81/0x17f0 mm/pagewalk.c:246
 __walk_page_range+0x132/0x720 mm/pagewalk.c:348
 walk_page_range+0x58f/0x7c0 mm/pagewalk.c:474
 madvise_pageout_page_range mm/madvise.c:609 [inline]
 madvise_pageout mm/madvise.c:636 [inline]
 madvise_vma_behavior mm/madvise.c:1042 [inline]
 madvise_walk_vmas mm/madvise.c:1271 [inline]
 do_madvise+0x3384/0x4760 mm/madvise.c:1467
 __do_sys_madvise mm/madvise.c:1484 [inline]
 __se_sys_madvise mm/madvise.c:1482 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1482
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fde4b979e79
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:00007fde4c780038 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007fde4bb16130 RCX: 00007fde4b979e79
RDX: 0000000000000015 RSI: 0000000000600000 RDI: 0000000020000000
RBP: 00007fde4b9e7916 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fde4bb16130 R15: 00007fff39f021b8
 </TASK>
BUG: Bad page state in process syz.2.656  pfn:50a00
page: refcount:2 mapcount:1 mapping:0000000000000000 index:0x20000 pfn:0x50a00
flags: 0xfff00000028019(locked|uptodate|dirty|mappedtodisk|swapbacked|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000028019 dead000000000100 dead000000000122 0000000000000000
raw: 0000000000020000 0000000000000000 0000000200000000 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Movable, gfp_mask 0x1c24ca(GFP_TRANSHUGE), pid 8174, tgid 8170 (syz.2.656), ts 301670133585, free_ts 229926046969
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1518
 prep_new_page mm/page_alloc.c:1526 [inline]
 get_page_from_freelist+0x3004/0x30c0 mm/page_alloc.c:3477
 __alloc_pages_noprof+0x29e/0x780 mm/page_alloc.c:4744
 __folio_alloc_noprof+0x14/0x130 mm/page_alloc.c:4776
 alloc_charge_folio+0x4a3/0xae0 mm/khugepaged.c:1070
 collapse_huge_page mm/khugepaged.c:1114 [inline]
 hpage_collapse_scan_pmd+0x17b3/0x4dc0 mm/khugepaged.c:1420
 madvise_collapse+0x50e/0xcf0 mm/khugepaged.c:2763
 madvise_vma_behavior mm/madvise.c:1097 [inline]
 madvise_walk_vmas mm/madvise.c:1271 [inline]
 do_madvise+0xcc6/0x4760 mm/madvise.c:1467
 __do_sys_madvise mm/madvise.c:1484 [inline]
 __se_sys_madvise mm/madvise.c:1482 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1482
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 7337 tgid 7329 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1099 [inline]
 free_unref_folios+0xe5c/0x1780 mm/page_alloc.c:2700
 folios_put_refs+0x76e/0x860 mm/swap.c:1007
 free_pages_and_swap_cache+0x2ea/0x690 mm/swap_state.c:332
 __tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline]
 tlb_batch_pages_flush mm/mmu_gather.c:149 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:366 [inline]
 tlb_flush_mmu+0x3a3/0x680 mm/mmu_gather.c:373
 zap_pte_range mm/memory.c:1697 [inline]
 zap_pmd_range mm/memory.c:1736 [inline]
 zap_pud_range mm/memory.c:1765 [inline]
 zap_p4d_range mm/memory.c:1786 [inline]
 unmap_page_range+0x38d9/0x42c0 mm/memory.c:1807
 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1897
 exit_mmap+0x275/0xc40 mm/mmap.c:1921
 __mmput+0x115/0x390 kernel/fork.c:1347
 exit_mm+0x220/0x310 kernel/exit.c:571
 do_exit+0x9b2/0x28e0 kernel/exit.c:926
 do_group_exit+0x207/0x2c0 kernel/exit.c:1088
 get_signal+0x176f/0x1810 kernel/signal.c:2936
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 1 UID: 0 PID: 8177 Comm: syz.2.656 Tainted: G    B              6.11.0-rc3-next-20240816-syzkaller #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 bad_page+0x18e/0x200 mm/page_alloc.c:502
 free_page_is_bad mm/page_alloc.c:919 [inline]
 free_pages_prepare mm/page_alloc.c:1091 [inline]
 free_unref_folios+0xfe1/0x1780 mm/page_alloc.c:2700
 __split_huge_page+0x3dba/0x5350 mm/huge_memory.c:3275
 split_huge_page_to_list_to_order+0x13c2/0x1ee0 mm/huge_memory.c:3531
 split_folio_to_list_to_order include/linux/huge_mm.h:617 [inline]
 shrink_folio_list+0x32df/0x8d10 mm/vmscan.c:1254
 reclaim_folio_list mm/vmscan.c:2164 [inline]
 reclaim_pages+0x916/0xc60 mm/vmscan.c:2200
 madvise_cold_or_pageout_pte_range+0x22e6/0x32a0 mm/madvise.c:426
 walk_pmd_range mm/pagewalk.c:106 [inline]
 walk_pud_range mm/pagewalk.c:178 [inline]
 walk_p4d_range mm/pagewalk.c:211 [inline]
 walk_pgd_range+0xb81/0x17f0 mm/pagewalk.c:246
 __walk_page_range+0x132/0x720 mm/pagewalk.c:348
 walk_page_range+0x58f/0x7c0 mm/pagewalk.c:474
 madvise_pageout_page_range mm/madvise.c:609 [inline]
 madvise_pageout mm/madvise.c:636 [inline]
 madvise_vma_behavior mm/madvise.c:1042 [inline]
 madvise_walk_vmas mm/madvise.c:1271 [inline]
 do_madvise+0x3384/0x4760 mm/madvise.c:1467
 __do_sys_madvise mm/madvise.c:1484 [inline]
 __se_sys_madvise mm/madvise.c:1482 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1482
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fde4b979e79
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:00007fde4c780038 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007fde4bb16130 RCX: 00007fde4b979e79
RDX: 0000000000000015 RSI: 0000000000600000 RDI: 0000000020000000
RBP: 00007fde4b9e7916 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fde4bb16130 R15: 00007fff39f021b8
 </TASK>
BUG: Bad page state in process syz.2.656  pfn:50a00
page: refcount:2 mapcount:1 mapping:0000000000000000 index:0x20000 pfn:0x50a00
flags: 0xfff00000028019(locked|uptodate|dirty|mappedtodisk|swapbacked|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000028019 dead000000000100 dead000000000122 0000000000000000
raw: 0000000000020000 0000000000000000 0000000200000000 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Movable, gfp_mask 0x1c24ca(GFP_TRANSHUGE), pid 8174, tgid 8170 (syz.2.656), ts 301670133585, free_ts 229926046969
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1518
 prep_new_page mm/page_alloc.c:1526 [inline]
 get_page_from_freelist+0x3004/0x30c0 mm/page_alloc.c:3477
 __alloc_pages_noprof+0x29e/0x780 mm/page_alloc.c:4744
 __folio_alloc_noprof+0x14/0x130 mm/page_alloc.c:4776
 alloc_charge_folio+0x4a3/0xae0 mm/khugepaged.c:1070
 collapse_huge_page mm/khugepaged.c:1114 [inline]
 hpage_collapse_scan_pmd+0x17b3/0x4dc0 mm/khugepaged.c:1420
 madvise_collapse+0x50e/0xcf0 mm/khugepaged.c:2763
 madvise_vma_behavior mm/madvise.c:1097 [inline]
 madvise_walk_vmas mm/madvise.c:1271 [inline]
 do_madvise+0xcc6/0x4760 mm/madvise.c:1467
 __do_sys_madvise mm/madvise.c:1484 [inline]
 __se_sys_madvise mm/madvise.c:1482 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1482
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 7337 tgid 7329 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1099 [inline]
 free_unref_folios+0xe5c/0x1780 mm/page_alloc.c:2700
 folios_put_refs+0x76e/0x860 mm/swap.c:1007
 free_pages_and_swap_cache+0x2ea/0x690 mm/swap_state.c:332
 __tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline]
 tlb_batch_pages_flush mm/mmu_gather.c:149 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:366 [inline]
 tlb_flush_mmu+0x3a3/0x680 mm/mmu_gather.c:373
 zap_pte_range mm/memory.c:1697 [inline]
 zap_pmd_range mm/memory.c:1736 [inline]
 zap_pud_range mm/memory.c:1765 [inline]
 zap_p4d_range mm/memory.c:1786 [inline]
 unmap_page_range+0x38d9/0x42c0 mm/memory.c:1807
 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1897
 exit_mmap+0x275/0xc40 mm/mmap.c:1921
 __mmput+0x115/0x390 kernel/fork.c:1347
 exit_mm+0x220/0x310 kernel/exit.c:571
 do_exit+0x9b2/0x28e0 kernel/exit.c:926
 do_group_exit+0x207/0x2c0 kernel/exit.c:1088
 get_signal+0x176f/0x1810 kernel/signal.c:2936
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 1 UID: 0 PID: 8177 Comm: syz.2.656 Tainted: G    B              6.11.0-rc3-next-20240816-syzkaller #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 bad_page+0x18e/0x200 mm/page_alloc.c:502
 free_page_is_bad mm/page_alloc.c:919 [inline]
 free_pages_prepare mm/page_alloc.c:1091 [inline]
 free_unref_folios+0xfe1/0x1780 mm/page_alloc.c:2700
 __split_huge_page+0x3dba/0x5350 mm/huge_memory.c:3275
 split_huge_page_to_list_to_order+0x13c2/0x1ee0 mm/huge_memory.c:3531
 split_folio_to_list_to_order include/linux/huge_mm.h:617 [inline]
 shrink_folio_list+0x32df/0x8d10 mm/vmscan.c:1254
 reclaim_folio_list mm/vmscan.c:2164 [inline]
 reclaim_pages+0x916/0xc60 mm/vmscan.c:2200
 madvise_cold_or_pageout_pte_range+0x22e6/0x32a0 mm/madvise.c:426
 walk_pmd_range mm/pagewalk.c:106 [inline]
 walk_pud_range mm/pagewalk.c:178 [inline]
 walk_p4d_range mm/pagewalk.c:211 [inline]
 walk_pgd_range+0xb81/0x17f0 mm/pagewalk.c:246
 __walk_page_range+0x132/0x720 mm/pagewalk.c:348
 walk_page_range+0x58f/0x7c0 mm/pagewalk.c:474
 madvise_pageout_page_range mm/madvise.c:609 [inline]
 madvise_pageout mm/madvise.c:636 [inline]
 madvise_vma_behavior mm/madvise.c:1042 [inline]
 madvise_walk_vmas mm/madvise.c:1271 [inline]
 do_madvise+0x3384/0x4760 mm/madvise.c:1467
 __do_sys_madvise mm/madvise.c:1484 [inline]
 __se_sys_madvise mm/madvise.c:1482 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1482
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fde4b979e79
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:00007fde4c780038 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007fde4bb16130 RCX: 00007fde4b979e79
RDX: 0000000000000015 RSI: 0000000000600000 RDI: 0000000020000000
RBP: 00007fde4b9e7916 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fde4bb16130 R15: 00007fff39f021b8
 </TASK>
BUG: Bad page state in process syz.2.656  pfn:50a00
page: refcount:2 mapcount:1 mapping:0000000000000000 index:0x20000 pfn:0x50a00
flags: 0xfff00000028019(locked|uptodate|dirty|mappedtodisk|swapbacked|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000028019 dead000000000100 dead000000000122 0000000000000000
raw: 0000000000020000 0000000000000000 0000000200000000 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Movable, gfp_mask 0x1c24ca(GFP_TRANSHUGE), pid 8174, tgid 8170 (syz.2.656), ts 301670133585, free_ts 229926046969
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1518
 prep_new_page mm/page_alloc.c:1526 [inline]
 get_page_from_freelist+0x3004/0x30c0 mm/page_alloc.c:3477
 __alloc_pages_noprof+0x29e/0x780 mm/page_alloc.c:4744
 __folio_alloc_noprof+0x14/0x130 mm/page_alloc.c:4776
 alloc_charge_folio+0x4a3/0xae0 mm/khugepaged.c:1070
 collapse_huge_page mm/khugepaged.c:1114 [inline]
 hpage_collapse_scan_pmd+0x17b3/0x4dc0 mm/khugepaged.c:1420
 madvise_collapse+0x50e/0xcf0 mm/khugepaged.c:2763
 madvise_vma_behavior mm/madvise.c:1097 [inline]
 madvise_walk_vmas mm/madvise.c:1271 [inline]
 do_madvise+0xcc6/0x4760 mm/madvise.c:1467
 __do_sys_madvise mm/madvise.c:1484 [inline]
 __se_sys_madvise mm/madvise.c:1482 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1482
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 7337 tgid 7329 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1099 [inline]
 free_unref_folios+0xe5c/0x1780 mm/page_alloc.c:2700
 folios_put_refs+0x76e/0x860 mm/swap.c:1007
 free_pages_and_swap_cache+0x2ea/0x690 mm/swap_state.c:332
 __tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline]
 tlb_batch_pages_flush mm/mmu_gather.c:149 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:366 [inline]
 tlb_flush_mmu+0x3a3/0x680 mm/mmu_gather.c:373
 zap_pte_range mm/memory.c:1697 [inline]
 zap_pmd_range mm/memory.c:1736 [inline]
 zap_pud_range mm/memory.c:1765 [inline]
 zap_p4d_range mm/memory.c:1786 [inline]
 unmap_page_range+0x38d9/0x42c0 mm/memory.c:1807
 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1897
 exit_mmap+0x275/0xc40 mm/mmap.c:1921
 __mmput+0x115/0x390 kernel/fork.c:1347
 exit_mm+0x220/0x310 kernel/exit.c:571
 do_exit+0x9b2/0x28e0 kernel/exit.c:926
 do_group_exit+0x207/0x2c0 kernel/exit.c:1088
 get_signal+0x176f/0x1810 kernel/signal.c:2936
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 1 UID: 0 PID: 8177 Comm: syz.2.656 Tainted: G    B              6.11.0-rc3-next-20240816-syzkaller #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 bad_page+0x18e/0x200 mm/page_alloc.c:502
 free_page_is_bad mm/page_alloc.c:919 [inline]
 free_pages_prepare mm/page_alloc.c:1091 [inline]
 free_unref_folios+0xfe1/0x1780 mm/page_alloc.c:2700
 __split_huge_page+0x3dba/0x5350 mm/huge_memory.c:3275
 split_huge_page_to_list_to_order+0x13c2/0x1ee0 mm/huge_memory.c:3531
 split_folio_to_list_to_order include/linux/huge_mm.h:617 [inline]
 shrink_folio_list+0x32df/0x8d10 mm/vmscan.c:1254
 reclaim_folio_list mm/vmscan.c:2164 [inline]
 reclaim_pages+0x916/0xc60 mm/vmscan.c:2200
 madvise_cold_or_pageout_pte_range+0x22e6/0x32a0 mm/madvise.c:426
 walk_pmd_range mm/pagewalk.c:106 [inline]
 walk_pud_range mm/pagewalk.c:178 [inline]
 walk_p4d_range mm/pagewalk.c:211 [inline]
 walk_pgd_range+0xb81/0x17f0 mm/pagewalk.c:246
 __walk_page_range+0x132/0x720 mm/pagewalk.c:348
 walk_page_range+0x58f/0x7c0 mm/pagewalk.c:474
 madvise_pageout_page_range mm/madvise.c:609 [inline]
 madvise_pageout mm/madvise.c:636 [inline]
 madvise_vma_behavior mm/madvise.c:1042 [inline]
 madvise_walk_vmas mm/madvise.c:1271 [inline]
 do_madvise+0x3384/0x4760 mm/madvise.c:1467
 __do_sys_madvise mm/madvise.c:1484 [inline]
 __se_sys_madvise mm/madvise.c:1482 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1482
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fde4b979e79
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:00007fde4c780038 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007fde4bb16130 RCX: 00007fde4b979e79
RDX: 0000000000000015 RSI: 0000000000600000 RDI: 0000000020000000
RBP: 00007fde4b9e7916 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fde4bb16130 R15: 00007fff39f021b8
 </TASK>
BUG: Bad page state in process syz.2.656  pfn:50a00
page: refcount:2 mapcount:1 mapping:0000000000000000 index:0x20000 pfn:0x50a00
flags: 0xfff00000028019(locked|uptodate|dirty|mappedtodisk|swapbacked|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000028019 dead000000000100 dead000000000122 0000000000000000
raw: 0000000000020000 0000000000000000 0000000200000000 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Movable, gfp_mask 0x1c24ca(GFP_TRANSHUGE), pid 8174, tgid 8170 (syz.2.656), ts 301670133585, free_ts 229926046969
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1518
 prep_new_page mm/page_alloc.c:1526 [inline]
 get_page_from_freelist+0x3004/0x30c0 mm/page_alloc.c:3477
 __alloc_pages_noprof+0x29e/0x780 mm/page_alloc.c:4744
 __folio_alloc_noprof+0x14/0x130 mm/page_alloc.c:4776
 alloc_charge_folio+0x4a3/0xae0 mm/khugepaged.c:1070
 collapse_huge_page mm/khugepaged.c:1114 [inline]
 hpage_collapse_scan_pmd+0x17b3/0x4dc0 mm/khugepaged.c:1420
 madvise_collapse+0x50e/0xcf0 mm/khugepaged.c:2763
 madvise_vma_behavior mm/madvise.c:1097 [inline]
 madvise_walk_vmas mm/madvise.c:1271 [inline]
 do_madvise+0xcc6/0x4760 mm/madvise.c:1467
 __do_sys_madvise mm/madvise.c:1484 [inline]
 __se_sys_madvise mm/madvise.c:1482 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1482
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 7337 tgid 7329 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1099 [inline]
 free_unref_folios+0xe5c/0x1780 mm/page_alloc.c:2700
 folios_put_refs+0x76e/0x860 mm/swap.c:1007
 free_pages_and_swap_cache+0x2ea/0x690 mm/swap_state.c:332
 __tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline]
 tlb_batch_pages_flush mm/mmu_gather.c:149 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:366 [inline]
 tlb_flush_mmu+0x3a3/0x680 mm/mmu_gather.c:373
 zap_pte_range mm/memory.c:1697 [inline]
 zap_pmd_range mm/memory.c:1736 [inline]
 zap_pud_range mm/memory.c:1765 [inline]
 zap_p4d_range mm/memory.c:1786 [inline]
 unmap_page_range+0x38d9/0x42c0 mm/memory.c:1807
 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1897
 exit_mmap+0x275/0xc40 mm/mmap.c:1921
 __mmput+0x115/0x390 kernel/fork.c:1347
 exit_mm+0x220/0x310 kernel/exit.c:571
 do_exit+0x9b2/0x28e0 kernel/exit.c:926
 do_group_exit+0x207/0x2c0 kernel/exit.c:1088
 get_signal+0x176f/0x1810 kernel/signal.c:2936
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 1 UID: 0 PID: 8177 Comm: syz.2.656 Tainted: G    B              6.11.0-rc3-next-20240816-syzkaller #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 bad_page+0x18e/0x200 mm/page_alloc.c:502
 free_page_is_bad mm/page_alloc.c:919 [inline]
 free_pages_prepare mm/page_alloc.c:1091 [inline]
 free_unref_folios+0xfe1/0x1780 mm/page_alloc.c:2700
 __split_huge_page+0x3dba/0x5350 mm/huge_memory.c:3275
 split_huge_page_to_list_to_order+0x13c2/0x1ee0 mm/huge_memory.c:3531
 split_folio_to_list_to_order include/linux/huge_mm.h:617 [inline]
 shrink_folio_list+0x32df/0x8d10 mm/vmscan.c:1254
 reclaim_folio_list mm/vmscan.c:2164 [inline]
 reclaim_pages+0x916/0xc60 mm/vmscan.c:2200
 madvise_cold_or_pageout_pte_range+0x22e6/0x32a0 mm/madvise.c:426
 walk_pmd_range mm/pagewalk.c:106 [inline]
 walk_pud_range mm/pagewalk.c:178 [inline]
 walk_p4d_range mm/pagewalk.c:211 [inline]
 walk_pgd_range+0xb81/0x17f0 mm/pagewalk.c:246
 __walk_page_range+0x132/0x720 mm/pagewalk.c:348
 walk_page_range+0x58f/0x7c0 mm/pagewalk.c:474
 madvise_pageout_page_range mm/madvise.c:609 [inline]
 madvise_pageout mm/madvise.c:636 [inline]
 madvise_vma_behavior mm/madvise.c:1042 [inline]
 madvise_walk_vmas mm/madvise.c:1271 [inline]
 do_madvise+0x3384/0x4760 mm/madvise.c:1467
 __do_sys_madvise mm/madvise.c:1484 [inline]
 __se_sys_madvise mm/madvise.c:1482 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1482
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fde4b979e79
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:00007fde4c780038 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007fde4bb16130 RCX: 00007fde4b979e79
RDX: 0000000000000015 RSI: 0000000000600000 RDI: 0000000020000000
RBP: 00007fde4b9e7916 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fde4bb16130 R15: 00007fff39f021b8
 </TASK>
BUG: Bad page state in process syz.2.656  pfn:50a00
page: refcount:2 mapcount:1 mapping:0000000000000000 index:0x20000 pfn:0x50a00
flags: 0xfff00000028019(locked|uptodate|dirty|mappedtodisk|swapbacked|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000028019 dead000000000100 dead000000000122 0000000000000000
raw: 0000000000020000 0000000000000000 0000000200000000 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Movable, gfp_mask 0x1c24ca(GFP_TRANSHUGE), pid 8174, tgid 8170 (syz.2.656), ts 301670133585, free_ts 229926046969
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1518
 prep_new_page mm/page_alloc.c:1526 [inline]
 get_page_from_freelist+0x3004/0x30c0 mm/page_alloc.c:3477
 __alloc_pages_noprof+0x29e/0x780 mm/page_alloc.c:4744
 __folio_alloc_noprof+0x14/0x130 mm/page_alloc.c:4776
 alloc_charge_folio+0x4a3/0xae0 mm/khugepaged.c:1070
 collapse_huge_page mm/khugepaged.c:1114 [inline]
 hpage_collapse_scan_pmd+0x17b3/0x4dc0 mm/khugepaged.c:1420
 madvise_collapse+0x50e/0xcf0 mm/khugepaged.c:2763
 madvise_vma_behavior mm/madvise.c:1097 [inline]
 madvise_walk_vmas mm/madvise.c:1271 [inline]
 do_madvise+0xcc6/0x4760 mm/madvise.c:1467
 __do_sys_madvise mm/madvise.c:1484 [inline]
 __se_sys_madvise mm/madvise.c:1482 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1482
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 7337 tgid 7329 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1099 [inline]
 free_unref_folios+0xe5c/0x1780 mm/page_alloc.c:2700
 folios_put_refs+0x76e/0x860 mm/swap.c:1007
 free_pages_and_swap_cache+0x2ea/0x690 mm/swap_state.c:332
 __tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline]
 tlb_batch_pages_flush mm/mmu_gather.c:149 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:366 [inline]
 tlb_flush_mmu+0x3a3/0x680 mm/mmu_gather.c:373
 zap_pte_range mm/memory.c:1697 [inline]
 zap_pmd_range mm/memory.c:1736 [inline]
 zap_pud_range mm/memory.c:1765 [inline]
 zap_p4d_range mm/memory.c:1786 [inline]
 unmap_page_range+0x38d9/0x42c0 mm/memory.c:1807
 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1897
 exit_mmap+0x275/0xc40 mm/mmap.c:1921
 __mmput+0x115/0x390 kernel/fork.c:1347
 exit_mm+0x220/0x310 kernel/exit.c:571
 do_exit+0x9b2/0x28e0 kernel/exit.c:926
 do_group_exit+0x207/0x2c0 kernel/exit.c:1088
 get_signal+0x176f/0x1810 kernel/signal.c:2936
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 1 UID: 0 PID: 8177 Comm: syz.2.656 Tainted: G    B              6.11.0-rc3-next-20240816-syzkaller #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 bad_page+0x18e/0x200 mm/page_alloc.c:502
 free_page_is_bad mm/page_alloc.c:919 [inline]
 free_pages_prepare mm/page_alloc.c:1091 [inline]
 free_unref_folios+0xfe1/0x1780 mm/page_alloc.c:2700
 __split_huge_page+0x3dba/0x5350 mm/huge_memory.c:3275
 split_huge_page_to_list_to_order+0x13c2/0x1ee0 mm/huge_memory.c:3531
 split_folio_to_list_to_order include/linux/huge_mm.h:617 [inline]
 shrink_folio_list+0x32df/0x8d10 mm/vmscan.c:1254
 reclaim_folio_list mm/vmscan.c:2164 [inline]
 reclaim_pages+0x916/0xc60 mm/vmscan.c:2200
 madvise_cold_or_pageout_pte_range+0x22e6/0x32a0 mm/madvise.c:426
 walk_pmd_range mm/pagewalk.c:106 [inline]
 walk_pud_range mm/pagewalk.c:178 [inline]
 walk_p4d_range mm/pagewalk.c:211 [inline]
 walk_pgd_range+0xb81/0x17f0 mm/pagewalk.c:246
 __walk_page_range+0x132/0x720 mm/pagewalk.c:348
 walk_page_range+0x58f/0x7c0 mm/pagewalk.c:474
 madvise_pageout_page_range mm/madvise.c:609 [inline]
 madvise_pageout mm/madvise.c:636 [inline]
 madvise_vma_behavior mm/madvise.c:1042 [inline]
 madvise_walk_vmas mm/madvise.c:1271 [inline]
 do_madvise+0x3384/0x4760 mm/madvise.c:1467
 __do_sys_madvise mm/madvise.c:1484 [inline]
 __se_sys_madvise mm/madvise.c:1482 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1482
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fde4b979e79
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:00007fde4c780038 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007fde4bb16130 RCX: 00007fde4b979e79
RDX: 0000000000000015 RSI: 0000000000600000 RDI: 0000000020000000
RBP: 00007fde4b9e7916 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fde4bb16130 R15: 00007fff39f021b8
 </TASK>
BUG: Bad page state in process syz.2.656  pfn:50a00
page: refcount:2 mapcount:1 mapping:0000000000000000 index:0x20000 pfn:0x50a00
flags: 0xfff00000028019(locked|uptodate|dirty|mappedtodisk|swapbacked|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000028019 dead000000000100 dead000000000122 0000000000000000
raw: 0000000000020000 0000000000000000 0000000200000000 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Movable, gfp_mask 0x1c24ca(GFP_TRANSHUGE), pid 8174, tgid 8170 (syz.2.656), ts 301670133585, free_ts 229926046969
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1518
 prep_new_page mm/page_alloc.c:1526 [inline]
 get_page_from_freelist+0x3004/0x30c0 mm/page_alloc.c:3477
 __alloc_pages_noprof+0x29e/0x780 mm/page_alloc.c:4744
 __folio_alloc_noprof+0x14/0x130 mm/page_alloc.c:4776
 alloc_charge_folio+0x4a3/0xae0 mm/khugepaged.c:1070
 collapse_huge_page mm/khugepaged.c:1114 [inline]
 hpage_collapse_scan_pmd+0x17b3/0x4dc0 mm/khugepaged.c:1420
 madvise_collapse+0x50e/0xcf0 mm/khugepaged.c:2763
 madvise_vma_behavior mm/madvise.c:1097 [inline]
 madvise_walk_vmas mm/madvise.c:1271 [inline]
 do_madvise+0xcc6/0x4760 mm/madvise.c:1467
 __do_sys_madvise mm/madvise.c:1484 [inline]
 __se_sys_madvise mm/madvise.c:1482 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1482
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 7337 tgid 7329 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1099 [inline]
 free_unref_folios+0xe5c/0x1780 mm/page_alloc.c:2700
 folios_put_refs+0x76e/0x860 mm/swap.c:1007
 free_pages_and_swap_cache+0x2ea/0x690 mm/swap_state.c:332
 __tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline]
 tlb_batch_pages_flush mm/mmu_gather.c:149 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:366 [inline]
 tlb_flush_mmu+0x3a3/0x680 mm/mmu_gather.c:373
 zap_pte_range mm/memory.c:1697 [inline]
 zap_pmd_range mm/memory.c:1736 [inline]
 zap_pud_range mm/memory.c:1765 [inline]
 zap_p4d_range mm/memory.c:1786 [inline]
 unmap_page_range+0x38d9/0x42c0 mm/memory.c:1807
 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1897
 exit_mmap+0x275/0xc40 mm/mmap.c:1921
 __mmput+0x115/0x390 kernel/fork.c:1347
 exit_mm+0x220/0x310 kernel/exit.c:571
 do_exit+0x9b2/0x28e0 kernel/exit.c:926
 do_group_exit+0x207/0x2c0 kernel/exit.c:1088
 get_signal+0x176f/0x1810 kernel/signal.c:2936
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 1 UID: 0 PID: 8177 Comm: syz.2.656 Tainted: G    B              6.11.0-rc3-next-20240816-syzkaller #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 bad_page+0x18e/0x200 mm/page_alloc.c:502
 free_page_is_bad mm/page_alloc.c:919 [inline]
 free_pages_prepare mm/page_alloc.c:1091 [inline]
 free_unref_folios+0xfe1/0x1780 mm/page_alloc.c:2700
 __split_huge_page+0x3dba/0x5350 mm/huge_memory.c:3275
 split_huge_page_to_list_to_order+0x13c2/0x1ee0 mm/huge_memory.c:3531
 split_folio_to_list_to_order include/linux/huge_mm.h:617 [inline]
 shrink_folio_list+0x32df/0x8d10 mm/vmscan.c:1254
 reclaim_folio_list mm/vmscan.c:2164 [inline]
 reclaim_pages+0x916/0xc60 mm/vmscan.c:2200
 madvise_cold_or_pageout_pte_range+0x22e6/0x32a0 mm/madvise.c:426
 walk_pmd_range mm/pagewalk.c:106 [inline]
 walk_pud_range mm/pagewalk.c:178 [inline]
 walk_p4d_range mm/pagewalk.c:211 [inline]
 walk_pgd_range+0xb81/0x17f0 mm/pagewalk.c:246
 __walk_page_range+0x132/0x720 mm/pagewalk.c:348
 walk_page_range+0x58f/0x7c0 mm/pagewalk.c:474
 madvise_pageout_page_range mm/madvise.c:609 [inline]
 madvise_pageout mm/madvise.c:636 [inline]
 madvise_vma_behavior mm/madvise.c:1042 [inline]
 madvise_walk_vmas mm/madvise.c:1271 [inline]
 do_madvise+0x3384/0x4760 mm/madvise.c:1467
 __do_sys_madvise mm/madvise.c:1484 [inline]
 __se_sys_madvise mm/madvise.c:1482 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1482
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fde4b979e79
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:00007fde4c780038 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007fde4bb16130 RCX: 00007fde4b979e79
RDX: 0000000000000015 RSI: 0000000000600000 RDI: 0000000020000000
RBP: 00007fde4b9e7916 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fde4bb16130 R15: 00007fff39f021b8
 </TASK>
BUG: Bad page state in process syz.2.656  pfn:50a00
page: refcount:2 mapcount:1 mapping:0000000000000000 index:0x20000 pfn:0x50a00
flags: 0xfff00000028019(locked|uptodate|dirty|mappedtodisk|swapbacked|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000028019 dead000000000100 dead000000000122 0000000000000000
raw: 0000000000020000 0000000000000000 0000000200000000 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Movable, gfp_mask 0x1c24ca(GFP_TRANSHUGE), pid 8174, tgid 8170 (syz.2.656), ts 301670133585, free_ts 229926046969
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1518
 prep_new_page mm/page_alloc.c:1526 [inline]
 get_page_from_freelist+0x3004/0x30c0 mm/page_alloc.c:3477
 __alloc_pages_noprof+0x29e/0x780 mm/page_alloc.c:4744
 __folio_alloc_noprof+0x14/0x130 mm/page_alloc.c:4776
 alloc_charge_folio+0x4a3/0xae0 mm/khugepaged.c:1070
 collapse_huge_page mm/khugepaged.c:1114 [inline]
 hpage_collapse_scan_pmd+0x17b3/0x4dc0 mm/khugepaged.c:1420
 madvise_collapse+0x50e/0xcf0 mm/khugepaged.c:2763
 madvise_vma_behavior mm/madvise.c:1097 [inline]
 madvise_walk_vmas mm/madvise.c:1271 [inline]
 do_madvise+0xcc6/0x4760 mm/madvise.c:1467
 __do_sys_madvise mm/madvise.c:1484 [inline]
 __se_sys_madvise mm/madvise.c:1482 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1482
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 7337 tgid 7329 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1099 [inline]
 free_unref_folios+0xe5c/0x1780 mm/page_alloc.c:2700
 folios_put_refs+0x76e/0x860 mm/swap.c:1007
 free_pages_and_swap_cache+0x2ea/0x690 mm/swap_state.c:332
 __tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline]
 tlb_batch_pages_flush mm/mmu_gather.c:149 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:366 [inline]
 tlb_flush_mmu+0x3a3/0x680 mm/mmu_gather.c:373
 zap_pte_range mm/memory.c:1697 [inline]
 zap_pmd_range mm/memory.c:1736 [inline]
 zap_pud_range mm/memory.c:1765 [inline]
 zap_p4d_range mm/memory.c:1786 [inline]
 unmap_page_range+0x38d9/0x42c0 mm/memory.c:1807
 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1897
 exit_mmap+0x275/0xc40 mm/mmap.c:1921
 __mmput+0x115/0x390 kernel/fork.c:1347
 exit_mm+0x220/0x310 kernel/exit.c:571
 do_exit+0x9b2/0x28e0 kernel/exit.c:926
 do_group_exit+0x207/0x2c0 kernel/exit.c:1088
 get_signal+0x176f/0x1810 kernel/signal.c:2936
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 1 UID: 0 PID: 8177 Comm: syz.2.656 Tainted: G    B              6.11.0-rc3-next-20240816-syzkaller #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 bad_page+0x18e/0x200 mm/page_alloc.c:502
 free_page_is_bad mm/page_alloc.c:919 [inline]
 free_pages_prepare mm/page_alloc.c:1091 [inline]
 free_unref_folios+0xfe1/0x1780 mm/page_alloc.c:2700
 __split_huge_page+0x3dba/0x5350 mm/huge_memory.c:3275
 split_huge_page_to_list_to_order+0x13c2/0x1ee0 mm/huge_memory.c:3531
 split_folio_to_list_to_order include/linux/huge_mm.h:617 [inline]
 shrink_folio_list+0x32df/0x8d10 mm/vmscan.c:1254
 reclaim_folio_list mm/vmscan.c:2164 [inline]
 reclaim_pages+0x916/0xc60 mm/vmscan.c:2200
 madvise_cold_or_pageout_pte_range+0x22e6/0x32a0 mm/madvise.c:426
 walk_pmd_range mm/pagewalk.c:106 [inline]
 walk_pud_range mm/pagewalk.c:178 [inline]
 walk_p4d_range mm/pagewalk.c:211 [inline]
 walk_pgd_range+0xb81/0x17f0 mm/pagewalk.c:246
 __walk_page_range+0x132/0x720 mm/pagewalk.c:348
 walk_page_range+0x58f/0x7c0 mm/pagewalk.c:474
 madvise_pageout_page_range mm/madvise.c:609 [inline]
 madvise_pageout mm/madvise.c:636 [inline]
 madvise_vma_behavior mm/madvise.c:1042 [inline]
 madvise_walk_vmas mm/madvise.c:1271 [inline]
 do_madvise+0x3384/0x4760 mm/madvise.c:1467
 __do_sys_madvise mm/madvise.c:1484 [inline]
 __se_sys_madvise mm/madvise.c:1482 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1482
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fde4b979e79
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:00007fde4c780038 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007fde4bb16130 RCX: 00007fde4b979e79
RDX: 0000000000000015 RSI: 0000000000600000 RDI: 0000000020000000
RBP: 00007fde4b9e7916 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fde4bb16130 R15: 00007fff39f021b8
 </TASK>
BUG: Bad page state in process syz.2.656  pfn:50a00
page: refcount:2 mapcount:1 mapping:0000000000000000 index:0x20000 pfn:0x50a00
flags: 0xfff00000028019(locked|uptodate|dirty|mappedtodisk|swapbacked|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000028019 dead000000000100 dead000000000122 0000000000000000
raw: 0000000000020000 0000000000000000 0000000200000000 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Movable, gfp_mask 0x1c24ca(GFP_TRANSHUGE), pid 8174, tgid 8170 (syz.2.656), ts 301670133585, free_ts 229926046969
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1518
 prep_new_page mm/page_alloc.c:1526 [inline]
 get_page_from_freelist+0x3004/0x30c0 mm/page_alloc.c:3477
 __alloc_pages_noprof+0x29e/0x780 mm/page_alloc.c:4744
 __folio_alloc_noprof+0x14/0x130 mm/page_alloc.c:4776
 alloc_charge_folio+0x4a3/0xae0 mm/khugepaged.c:1070
 collapse_huge_page mm/khugepaged.c:1114 [inline]
 hpage_collapse_scan_pmd+0x17b3/0x4dc0 mm/khugepaged.c:1420
 madvise_collapse+0x50e/0xcf0 mm/khugepaged.c:2763
 madvise_vma_behavior mm/madvise.c:1097 [inline]
 madvise_walk_vmas mm/madvise.c:1271 [inline]
 do_madvise+0xcc6/0x4760 mm/madvise.c:1467
 __do_sys_madvise mm/madvise.c:1484 [inline]
 __se_sys_madvise mm/madvise.c:1482 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1482
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 7337 tgid 7329 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1099 [inline]
 free_unref_folios+0xe5c/0x1780 mm/page_alloc.c:2700
 folios_put_refs+0x76e/0x860 mm/swap.c:1007
 free_pages_and_swap_cache+0x2ea/0x690 mm/swap_state.c:332
 __tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline]
 tlb_batch_pages_flush mm/mmu_gather.c:149 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:366 [inline]
 tlb_flush_mmu+0x3a3/0x680 mm/mmu_gather.c:373
 zap_pte_range mm/memory.c:1697 [inline]
 zap_pmd_range mm/memory.c:1736 [inline]
 zap_pud_range mm/memory.c:1765 [inline]
 zap_p4d_range mm/memory.c:1786 [inline]
 unmap_page_range+0x38d9/0x42c0 mm/memory.c:1807
 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1897
 exit_mmap+0x275/0xc40 mm/mmap.c:1921
 __mmput+0x115/0x390 kernel/fork.c:1347
 exit_mm+0x220/0x310 kernel/exit.c:571
 do_exit+0x9b2/0x28e0 kernel/exit.c:926
 do_group_exit+0x207/0x2c0 kernel/exit.c:1088
 get_signal+0x176f/0x1810 kernel/signal.c:2936
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 1 UID: 0 PID: 8177 Comm: syz.2.656 Tainted: G    B              6.11.0-rc3-next-20240816-syzkaller #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 bad_page+0x18e/0x200 mm/page_alloc.c:502
 free_page_is_bad mm/page_alloc.c:919 [inline]
 free_pages_prepare mm/page_alloc.c:1091 [inline]
 free_unref_folios+0xfe1/0x1780 mm/page_alloc.c:2700
 __split_huge_page+0x3dba/0x5350 mm/huge_memory.c:3275
 split_huge_page_to_list_to_order+0x13c2/0x1ee0 mm/huge_memory.c:3531
 split_folio_to_list_to_order include/linux/huge_mm.h:617 [inline]
 shrink_folio_list+0x32df/0x8d10 mm/vmscan.c:1254
 reclaim_folio_list mm/vmscan.c:2164 [inline]
 reclaim_pages+0x916/0xc60 mm/vmscan.c:2200
 madvise_cold_or_pageout_pte_range+0x22e6/0x32a0 mm/madvise.c:426
 walk_pmd_range mm/pagewalk.c:106 [inline]
 walk_pud_range mm/pagewalk.c:178 [inline]
 walk_p4d_range mm/pagewalk.c:211 [inline]
 walk_pgd_range+0xb81/0x17f0 mm/pagewalk.c:246
 __walk_page_range+0x132/0x720 mm/pagewalk.c:348
 walk_page_range+0x58f/0x7c0 mm/pagewalk.c:474
 madvise_pageout_page_range mm/madvise.c:609 [inline]
 madvise_pageout mm/madvise.c:636 [inline]
 madvise_vma_behavior mm/madvise.c:1042 [inline]
 madvise_walk_vmas mm/madvise.c:1271 [inline]
 do_madvise+0x3384/0x4760 mm/madvise.c:1467
 __do_sys_madvise mm/madvise.c:1484 [inline]
 __se_sys_madvise mm/madvise.c:1482 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1482
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fde4b979e79
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:00007fde4c780038 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007fde4bb16130 RCX: 00007fde4b979e79
RDX: 0000000000000015 RSI: 0000000000600000 RDI: 0000000020000000
RBP: 00007fde4b9e7916 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fde4bb16130 R15: 00007fff39f021b8
 </TASK>
BUG: Bad page state in process syz.2.656  pfn:50a00
page: refcount:2 mapcount:1 mapping:0000000000000000 index:0x20000 pfn:0x50a00
flags: 0xfff00000028019(locked|uptodate|dirty|mappedtodisk|swapbacked|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000028019 dead000000000100 dead000000000122 0000000000000000
raw: 0000000000020000 0000000000000000 0000000200000000 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Movable, gfp_mask 0x1c24ca(GFP_TRANSHUGE), pid 8174, tgid 8170 (syz.2.656), ts 301670133585, free_ts 229926046969
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1518
 prep_new_page mm/page_alloc.c:1526 [inline]
 get_page_from_freelist+0x3004/0x30c0 mm/page_alloc.c:3477
 __alloc_pages_noprof+0x29e/0x780 mm/page_alloc.c:4744
 __folio_alloc_noprof+0x14/0x130 mm/page_alloc.c:4776
 alloc_charge_folio+0x4a3/0xae0 mm/khugepaged.c:1070
 collapse_huge_page mm/khugepaged.c:1114 [inline]
 hpage_collapse_scan_pmd+0x17b3/0x4dc0 mm/khugepaged.c:1420
 madvise_collapse+0x50e/0xcf0 mm/khugepaged.c:2763
 madvise_vma_behavior mm/madvise.c:1097 [inline]
 madvise_walk_vmas mm/madvise.c:1271 [inline]
 do_madvise+0xcc6/0x4760 mm/madvise.c:1467
 __do_sys_madvise mm/madvise.c:1484 [inline]
 __se_sys_madvise mm/madvise.c:1482 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1482
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 7337 tgid 7329 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1099 [inline]
 free_unref_folios+0xe5c/0x1780 mm/page_alloc.c:2700
 folios_put_refs+0x76e/0x860 mm/swap.c:1007
 free_pages_and_swap_cache+0x2ea/0x690 mm/swap_state.c:332
 __tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline]
 tlb_batch_pages_flush mm/mmu_gather.c:149 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:366 [inline]
 tlb_flush_mmu+0x3a3/0x680 mm/mmu_gather.c:373
 zap_pte_range mm/memory.c:1697 [inline]
 zap_pmd_range mm/memory.c:1736 [inline]
 zap_pud_range mm/memory.c:1765 [inline]
 zap_p4d_range mm/memory.c:1786 [inline]
 unmap_page_range+0x38d9/0x42c0 mm/memory.c:1807
 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1897
 exit_mmap+0x275/0xc40 mm/mmap.c:1921
 __mmput+0x115/0x390 kernel/fork.c:1347
 exit_mm+0x220/0x310 kernel/exit.c:571
 do_exit+0x9b2/0x28e0 kernel/exit.c:926
 do_group_exit+0x207/0x2c0 kernel/exit.c:1088
 get_signal+0x176f/0x1810 kernel/signal.c:2936
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 1 UID: 0 PID: 8177 Comm: syz.2.656 Tainted: G    B              6.11.0-rc3-next-20240816-syzkaller #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 bad_page+0x18e/0x200 mm/page_alloc.c:502
 free_page_is_bad mm/page_alloc.c:919 [inline]
 free_pages_prepare mm/page_alloc.c:1091 [inline]
 free_unref_folios+0xfe1/0x1780 mm/page_alloc.c:2700
 __split_huge_page+0x3dba/0x5350 mm/huge_memory.c:3275
 split_huge_page_to_list_to_order+0x13c2/0x1ee0 mm/huge_memory.c:3531
 split_folio_to_list_to_order include/linux/huge_mm.h:617 [inline]
 shrink_folio_list+0x32df/0x8d10 mm/vmscan.c:1254
 reclaim_folio_list mm/vmscan.c:2164 [inline]
 reclaim_pages+0x916/0xc60 mm/vmscan.c:2200
 madvise_cold_or_pageout_pte_range+0x22e6/0x32a0 mm/madvise.c:426
 walk_pmd_range mm/pagewalk.c:106 [inline]
 walk_pud_range mm/pagewalk.c:178 [inline]
 walk_p4d_range mm/pagewalk.c:211 [inline]
 walk_pgd_range+0xb81/0x17f0 mm/pagewalk.c:246
 __walk_page_range+0x132/0x720 mm/pagewalk.c:348
 walk_page_range+0x58f/0x7c0 mm/pagewalk.c:474
 madvise_pageout_page_range mm/madvise.c:609 [inline]
 madvise_pageout mm/madvise.c:636 [inline]
 madvise_vma_behavior mm/madvise.c:1042 [inline]
 madvise_walk_vmas mm/madvise.c:1271 [inline]
 do_madvise+0x3384/0x4760 mm/madvise.c:1467
 __do_sys_madvise mm/madvise.c:1484 [inline]
 __se_sys_madvise mm/madvise.c:1482 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1482
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fde4b979e79
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:00007fde4c780038 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007fde4bb16130 RCX: 00007fde4b979e79
RDX: 0000000000000015 RSI: 0000000000600000 RDI: 0000000020000000
RBP: 00007fde4b9e7916 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fde4bb16130 R15: 00007fff39f021b8
 </TASK>
BUG: Bad page state in process syz.2.656  pfn:50a00
page: refcount:2 mapcount:1 mapping:0000000000000000 index:0x20000 pfn:0x50a00
flags: 0xfff00000028019(locked|uptodate|dirty|mappedtodisk|swapbacked|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000028019 dead000000000100 dead000000000122 0000000000000000
raw: 0000000000020000 0000000000000000 0000000200000000 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Movable, gfp_mask 0x1c24ca(GFP_TRANSHUGE), pid 8174, tgid 8170 (syz.2.656), ts 301670133585, free_ts 229926046969
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1518
 prep_new_page mm/page_alloc.c:1526 [inline]
 get_page_from_freelist+0x3004/0x30c0 mm/page_alloc.c:3477
 __alloc_pages_noprof+0x29e/0x780 mm/page_alloc.c:4744
 __folio_alloc_noprof+0x14/0x130 mm/page_alloc.c:4776
 alloc_charge_folio+0x4a3/0xae0 mm/khugepaged.c:1070
 collapse_huge_page mm/khugepaged.c:1114 [inline]
 hpage_collapse_scan_pmd+0x17b3/0x4dc0 mm/khugepaged.c:1420
 madvise_collapse+0x50e/0xcf0 mm/khugepaged.c:2763
 madvise_vma_behavior mm/madvise.c:1097 [inline]
 madvise_walk_vmas mm/madvise.c:1271 [inline]
 do_madvise+0xcc6/0x4760 mm/madvise.c:1467
 __do_sys_madvise mm/madvise.c:1484 [inline]
 __se_sys_madvise mm/madvise.c:1482 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1482
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 7337 tgid 7329 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1099 [inline]
 free_unref_folios+0xe5c/0x1780 mm/page_alloc.c:2700
 folios_put_refs+0x76e/0x860 mm/swap.c:1007
 free_pages_and_swap_cache+0x2ea/0x690 mm/swap_state.c:332
 __tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline]
 tlb_batch_pages_flush mm/mmu_gather.c:149 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:366 [inline]
 tlb_flush_mmu+0x3a3/0x680 mm/mmu_gather.c:373
 zap_pte_range mm/memory.c:1697 [inline]
 zap_pmd_range mm/memory.c:1736 [inline]
 zap_pud_range mm/memory.c:1765 [inline]
 zap_p4d_range mm/memory.c:1786 [inline]
 unmap_page_range+0x38d9/0x42c0 mm/memory.c:1807
 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1897
 exit_mmap+0x275/0xc40 mm/mmap.c:1921
 __mmput+0x115/0x390 kernel/fork.c:1347
 exit_mm+0x220/0x310 kernel/exit.c:571
 do_exit+0x9b2/0x28e0 kernel/exit.c:926
 do_group_exit+0x207/0x2c0 kernel/exit.c:1088
 get_signal+0x176f/0x1810 kernel/signal.c:2936
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 1 UID: 0 PID: 8177 Comm: syz.2.656 Tainted: G    B              6.11.0-rc3-next-20240816-syzkaller #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 bad_page+0x18e/0x200 mm/page_alloc.c:502
 free_page_is_bad mm/page_alloc.c:919 [inline]
 free_pages_prepare mm/page_alloc.c:1091 [inline]
 free_unref_folios+0xfe1/0x1780 mm/page_alloc.c:2700
 __split_huge_page+0x3dba/0x5350 mm/huge_memory.c:3275
 split_huge_page_to_list_to_order+0x13c2/0x1ee0 mm/huge_memory.c:3531
 split_folio_to_list_to_order include/linux/huge_mm.h:617 [inline]
 shrink_folio_list+0x32df/0x8d10 mm/vmscan.c:1254
 reclaim_folio_list mm/vmscan.c:2164 [inline]
 reclaim_pages+0x916/0xc60 mm/vmscan.c:2200
 madvise_cold_or_pageout_pte_range+0x22e6/0x32a0 mm/madvise.c:426
 walk_pmd_range mm/pagewalk.c:106 [inline]
 walk_pud_range mm/pagewalk.c:178 [inline]
 walk_p4d_range mm/pagewalk.c:211 [inline]
 walk_pgd_range+0xb81/0x17f0 mm/pagewalk.c:246
 __walk_page_range+0x132/0x720 mm/pagewalk.c:348
 walk_page_range+0x58f/0x7c0 mm/pagewalk.c:474
 madvise_pageout_page_range mm/madvise.c:609 [inline]
 madvise_pageout mm/madvise.c:636 [inline]
 madvise_vma_behavior mm/madvise.c:1042 [inline]
 madvise_walk_vmas mm/madvise.c:1271 [inline]
 do_madvise+0x3384/0x4760 mm/madvise.c:1467
 __do_sys_madvise mm/madvise.c:1484 [inline]
 __se_sys_madvise mm/madvise.c:1482 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1482
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fde4b979e79
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:00007fde4c780038 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007fde4bb16130 RCX: 00007fde4b979e79
RDX: 0000000000000015 RSI: 0000000000600000 RDI: 0000000020000000
RBP: 00007fde4b9e7916 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fde4bb16130 R15: 00007fff39f021b8
 </TASK>
BUG: Bad page state in process syz.2.656  pfn:50a00
page: refcount:2 mapcount:1 mapping:0000000000000000 index:0x20000 pfn:0x50a00
flags: 0xfff00000028019(locked|uptodate|dirty|mappedtodisk|swapbacked|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000028019 dead000000000100 dead000000000122 0000000000000000
raw: 0000000000020000 0000000000000000 0000000200000000 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Movable, gfp_mask 0x1c24ca(GFP_TRANSHUGE), pid 8174, tgid 8170 (syz.2.656), ts 301670133585, free_ts 229926046969
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1518
 prep_new_page mm/page_alloc.c:1526 [inline]
 get_page_from_freelist+0x3004/0x30c0 mm/page_alloc.c:3477
 __alloc_pages_noprof+0x29e/0x780 mm/page_alloc.c:4744
 __folio_alloc_noprof+0x14/0x130 mm/page_alloc.c:4776
 alloc_charge_folio+0x4a3/0xae0 mm/khugepaged.c:1070
 collapse_huge_page mm/khugepaged.c:1114 [inline]
 hpage_collapse_scan_pmd+0x17b3/0x4dc0 mm/khugepaged.c:1420
 madvise_collapse+0x50e/0xcf0 mm/khugepaged.c:2763
 madvise_vma_behavior mm/madvise.c:1097 [inline]
 madvise_walk_vmas mm/madvise.c:1271 [inline]
 do_madvise+0xcc6/0x4760 mm/madvise.c:1467
 __do_sys_madvise mm/madvise.c:1484 [inline]
 __se_sys_madvise mm/madvise.c:1482 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1482
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 7337 tgid 7329 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1099 [inline]
 free_unref_folios+0xe5c/0x1780 mm/page_alloc.c:2700
 folios_put_refs+0x76e/0x860 mm/swap.c:1007
 free_pages_and_swap_cache+0x2ea/0x690 mm/swap_state.c:332
 __tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline]
 tlb_batch_pages_flush mm/mmu_gather.c:149 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:366 [inline]
 tlb_flush_mmu+0x3a3/0x680 mm/mmu_gather.c:373
 zap_pte_range mm/memory.c:1697 [inline]
 zap_pmd_range mm/memory.c:1736 [inline]
 zap_pud_range mm/memory.c:1765 [inline]
 zap_p4d_range mm/memory.c:1786 [inline]
 unmap_page_range+0x38d9/0x42c0 mm/memory.c:1807
 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1897
 exit_mmap+0x275/0xc40 mm/mmap.c:1921
 __mmput+0x115/0x390 kernel/fork.c:1347
 exit_mm+0x220/0x310 kernel/exit.c:571
 do_exit+0x9b2/0x28e0 kernel/exit.c:926
 do_group_exit+0x207/0x2c0 kernel/exit.c:1088
 get_signal+0x176f/0x1810 kernel/signal.c:2936
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 1 UID: 0 PID: 8177 Comm: syz.2.656 Tainted: G    B              6.11.0-rc3-next-20240816-syzkaller #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 bad_page+0x18e/0x200 mm/page_alloc.c:502
 free_page_is_bad mm/page_alloc.c:919 [inline]
 free_pages_prepare mm/page_alloc.c:1091 [inline]
 free_unref_folios+0xfe1/0x1780 mm/page_alloc.c:2700
 __split_huge_page+0x3dba/0x5350 mm/huge_memory.c:3275
 split_huge_page_to_list_to_order+0x13c2/0x1ee0 mm/huge_memory.c:3531
 split_folio_to_list_to_order include/linux/huge_mm.h:617 [inline]
 shrink_folio_list+0x32df/0x8d10 mm/vmscan.c:1254
 reclaim_folio_list mm/vmscan.c:2164 [inline]
 reclaim_pages+0x916/0xc60 mm/vmscan.c:2200
 madvise_cold_or_pageout_pte_range+0x22e6/0x32a0 mm/madvise.c:426
 walk_pmd_range mm/pagewalk.c:106 [inline]
 walk_pud_range mm/pagewalk.c:178 [inline]
 walk_p4d_range mm/pagewalk.c:211 [inline]
 walk_pgd_range+0xb81/0x17f0 mm/pagewalk.c:246
 __walk_page_range+0x132/0x720 mm/pagewalk.c:348
 walk_page_range+0x58f/0x7c0 mm/pagewalk.c:474
 madvise_pageout_page_range mm/madvise.c:609 [inline]
 madvise_pageout mm/madvise.c:636 [inline]
 madvise_vma_behavior mm/madvise.c:1042 [inline]
 madvise_walk_vmas mm/madvise.c:1271 [inline]
 do_madvise+0x3384/0x4760 mm/madvise.c:1467
 __do_sys_madvise mm/madvise.c:1484 [inline]
 __se_sys_madvise mm/madvise.c:1482 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1482
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fde4b979e79
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:00007fde4c780038 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007fde4bb16130 RCX: 00007fde4b979e79
RDX: 0000000000000015 RSI: 0000000000600000 RDI: 0000000020000000
RBP: 00007fde4b9e7916 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000