ERROR: (device loop0): diWrite: ixpxd invalid
ERROR: (device loop0): remounting filesystem as read-only
ERROR: (device loop0): txCommit: 
BUG: Bad page state in process syz.0.491  pfn:67918
page:ffffea00019e4600 refcount:0 mapcount:0 mapping:0000000000000000 index:0x43 pfn:0x67918
flags: 0xfff0000000800c(referenced|uptodate|private|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff0000000800c ffffea00019e45c8 ffffc900044a7940 0000000000000000
raw: 0000000000000043 ffff88802ff0d000 00000000ffffffff 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 Unmovable, gfp_mask 0x140c40(GFP_NOFS|__GFP_COMP|__GFP_HARDWALL), pid 7813, tgid 7812 (syz.0.491), ts 261616605625, free_ts 222435770056
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x1c1/0x200 mm/page_alloc.c:1582
 prep_new_page mm/page_alloc.c:1589 [inline]
 get_page_from_freelist+0x2181/0x22a0 mm/page_alloc.c:3221
 __alloc_pages+0x1f0/0x460 mm/page_alloc.c:4501
 folio_alloc+0x1e/0x30 mm/mempolicy.c:2289
 filemap_alloc_folio+0xdf/0x490 mm/filemap.c:1004
 __filemap_get_folio+0x3fb/0xbe0 mm/filemap.c:1962
 pagecache_get_page+0x2a/0x250 mm/folio-compat.c:99
 find_or_create_page include/linux/pagemap.h:755 [inline]
 grab_cache_page include/linux/pagemap.h:877 [inline]
 __get_metapage+0x2ab/0xfa0 fs/jfs/jfs_metapage.c:613
 diNewExt+0xa4b/0x3000 fs/jfs/jfs_imap.c:2275
 diAllocExt fs/jfs/jfs_imap.c:1952 [inline]
 diAllocAG+0xbe2/0x1dd0 fs/jfs/jfs_imap.c:1669
 diAlloc+0x1df/0x1680 fs/jfs/jfs_imap.c:1590
 ialloc+0x8c/0x940 fs/jfs/jfs_inode.c:56
 jfs_mkdir+0x1e5/0xae0 fs/jfs/namei.c:225
 vfs_mkdir+0x2a5/0x470 fs/namei.c:4121
 do_mkdirat+0x1dc/0x450 fs/namei.c:4144
 __do_sys_mkdirat fs/namei.c:4159 [inline]
 __se_sys_mkdirat fs/namei.c:4157 [inline]
 __x64_sys_mkdirat+0x89/0xa0 fs/namei.c:4157
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1182 [inline]
 free_unref_page_prepare+0x7d7/0x8f0 mm/page_alloc.c:2366
 free_unref_page+0x32/0x2e0 mm/page_alloc.c:2459
 kasan_depopulate_vmalloc_pte+0x75/0x90 mm/kasan/shadow.c:427
 apply_to_pte_range mm/memory.c:2604 [inline]
 apply_to_pmd_range mm/memory.c:2648 [inline]
 apply_to_pud_range mm/memory.c:2684 [inline]
 apply_to_p4d_range mm/memory.c:2720 [inline]
 __apply_to_page_range+0x860/0xdd0 mm/memory.c:2756
 kasan_release_vmalloc+0x97/0xb0 mm/kasan/shadow.c:544
 __purge_vmap_area_lazy+0xf7c/0x1ab0 mm/vmalloc.c:1778
 drain_vmap_area_work+0x40/0xd0 mm/vmalloc.c:1812
 process_one_work kernel/workqueue.c:2653 [inline]
 process_scheduled_works+0xa60/0x1600 kernel/workqueue.c:2730
 worker_thread+0xa5e/0xfe0 kernel/workqueue.c:2811
 kthread+0x2fa/0x390 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
Modules linked in:
CPU: 1 PID: 7813 Comm: syz.0.491 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0x18c/0x250 lib/dump_stack.c:106
 bad_page+0x14b/0x170 mm/page_alloc.c:539
 free_page_is_bad mm/page_alloc.c:988 [inline]
 free_pages_prepare mm/page_alloc.c:1173 [inline]
 free_unref_page_prepare+0x884/0x8f0 mm/page_alloc.c:2366
 free_unref_page_list+0xbe/0x860 mm/page_alloc.c:2505
 release_pages+0x208a/0x2300 mm/swap.c:1022
 __folio_batch_release+0x71/0xe0 mm/swap.c:1042
 folio_batch_release include/linux/pagevec.h:83 [inline]
 truncate_inode_pages_range+0x381/0xea0 mm/truncate.c:396
 jfs_remount+0x34c/0x5c0 fs/jfs/super.c:451
 reconfigure_super+0x229/0x8e0 fs/super.c:1151
 do_remount fs/namespace.c:2927 [inline]
 path_mount+0xcfe/0xfa0 fs/namespace.c:3705
 do_mount fs/namespace.c:3726 [inline]
 __do_sys_mount fs/namespace.c:3935 [inline]
 __se_sys_mount+0x2e7/0x3d0 fs/namespace.c:3912
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fd04d79e0ca
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd04e659e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fd04e659ee0 RCX: 00007fd04d79e0ca
RDX: 0000200000000f40 RSI: 0000200000000f00 RDI: 0000000000000000
RBP: 0000200000000f40 R08: 00007fd04e659ee0 R09: 0000000001a5a438
R10: 0000000001a5a438 R11: 0000000000000246 R12: 0000200000000f00
R13: 00007fd04e659ea0 R14: 0000000000000000 R15: 0000200000001d00
 </TASK>
BUG: Bad page state in process syz.0.491  pfn:67917
page:ffffea00019e45c0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x42 pfn:0x67917
flags: 0xfff0000000800c(referenced|uptodate|private|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff0000000800c ffffea00019e4588 ffffc900044a7940 0000000000000000
raw: 0000000000000042 ffff88802ff0d1f0 00000000ffffffff 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 Unmovable, gfp_mask 0x140c40(GFP_NOFS|__GFP_COMP|__GFP_HARDWALL), pid 7813, tgid 7812 (syz.0.491), ts 261616545865, free_ts 222435753575
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x1c1/0x200 mm/page_alloc.c:1582
 prep_new_page mm/page_alloc.c:1589 [inline]
 get_page_from_freelist+0x2181/0x22a0 mm/page_alloc.c:3221
 __alloc_pages+0x1f0/0x460 mm/page_alloc.c:4501
 folio_alloc+0x1e/0x30 mm/mempolicy.c:2289
 filemap_alloc_folio+0xdf/0x490 mm/filemap.c:1004
 __filemap_get_folio+0x3fb/0xbe0 mm/filemap.c:1962
 pagecache_get_page+0x2a/0x250 mm/folio-compat.c:99
 find_or_create_page include/linux/pagemap.h:755 [inline]
 grab_cache_page include/linux/pagemap.h:877 [inline]
 __get_metapage+0x2ab/0xfa0 fs/jfs/jfs_metapage.c:613
 diNewExt+0xa4b/0x3000 fs/jfs/jfs_imap.c:2275
 diAllocExt fs/jfs/jfs_imap.c:1952 [inline]
 diAllocAG+0xbe2/0x1dd0 fs/jfs/jfs_imap.c:1669
 diAlloc+0x1df/0x1680 fs/jfs/jfs_imap.c:1590
 ialloc+0x8c/0x940 fs/jfs/jfs_inode.c:56
 jfs_mkdir+0x1e5/0xae0 fs/jfs/namei.c:225
 vfs_mkdir+0x2a5/0x470 fs/namei.c:4121
 do_mkdirat+0x1dc/0x450 fs/namei.c:4144
 __do_sys_mkdirat fs/namei.c:4159 [inline]
 __se_sys_mkdirat fs/namei.c:4157 [inline]
 __x64_sys_mkdirat+0x89/0xa0 fs/namei.c:4157
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1182 [inline]
 free_unref_page_prepare+0x7d7/0x8f0 mm/page_alloc.c:2366
 free_unref_page+0x32/0x2e0 mm/page_alloc.c:2459
 kasan_depopulate_vmalloc_pte+0x75/0x90 mm/kasan/shadow.c:427
 apply_to_pte_range mm/memory.c:2604 [inline]
 apply_to_pmd_range mm/memory.c:2648 [inline]
 apply_to_pud_range mm/memory.c:2684 [inline]
 apply_to_p4d_range mm/memory.c:2720 [inline]
 __apply_to_page_range+0x860/0xdd0 mm/memory.c:2756
 kasan_release_vmalloc+0x97/0xb0 mm/kasan/shadow.c:544
 __purge_vmap_area_lazy+0xf7c/0x1ab0 mm/vmalloc.c:1778
 drain_vmap_area_work+0x40/0xd0 mm/vmalloc.c:1812
 process_one_work kernel/workqueue.c:2653 [inline]
 process_scheduled_works+0xa60/0x1600 kernel/workqueue.c:2730
 worker_thread+0xa5e/0xfe0 kernel/workqueue.c:2811
 kthread+0x2fa/0x390 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
Modules linked in:
CPU: 0 PID: 7813 Comm: syz.0.491 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0x18c/0x250 lib/dump_stack.c:106
 bad_page+0x14b/0x170 mm/page_alloc.c:539
 free_page_is_bad mm/page_alloc.c:988 [inline]
 free_pages_prepare mm/page_alloc.c:1173 [inline]
 free_unref_page_prepare+0x884/0x8f0 mm/page_alloc.c:2366
 free_unref_page_list+0xbe/0x860 mm/page_alloc.c:2505
 release_pages+0x208a/0x2300 mm/swap.c:1022
 __folio_batch_release+0x71/0xe0 mm/swap.c:1042
 folio_batch_release include/linux/pagevec.h:83 [inline]
 truncate_inode_pages_range+0x381/0xea0 mm/truncate.c:396
 jfs_remount+0x34c/0x5c0 fs/jfs/super.c:451
 reconfigure_super+0x229/0x8e0 fs/super.c:1151
 do_remount fs/namespace.c:2927 [inline]
 path_mount+0xcfe/0xfa0 fs/namespace.c:3705
 do_mount fs/namespace.c:3726 [inline]
 __do_sys_mount fs/namespace.c:3935 [inline]
 __se_sys_mount+0x2e7/0x3d0 fs/namespace.c:3912
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fd04d79e0ca
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd04e659e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fd04e659ee0 RCX: 00007fd04d79e0ca
RDX: 0000200000000f40 RSI: 0000200000000f00 RDI: 0000000000000000
RBP: 0000200000000f40 R08: 00007fd04e659ee0 R09: 0000000001a5a438
R10: 0000000001a5a438 R11: 0000000000000246 R12: 0000200000000f00
R13: 00007fd04e659ea0 R14: 0000000000000000 R15: 0000200000001d00
 </TASK>
BUG: Bad page state in process syz.0.491  pfn:67916
page:ffffea00019e4580 refcount:0 mapcount:0 mapping:0000000000000000 index:0x41 pfn:0x67916
flags: 0xfff0000000800c(referenced|uptodate|private|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff0000000800c ffffea00019cf7c8 ffffc900044a7940 0000000000000000
raw: 0000000000000041 ffff88802ff0d2e8 00000000ffffffff 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 Unmovable, gfp_mask 0x140c40(GFP_NOFS|__GFP_COMP|__GFP_HARDWALL), pid 7813, tgid 7812 (syz.0.491), ts 261616401103, free_ts 222435736881
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x1c1/0x200 mm/page_alloc.c:1582
 prep_new_page mm/page_alloc.c:1589 [inline]
 get_page_from_freelist+0x2181/0x22a0 mm/page_alloc.c:3221
 __alloc_pages+0x1f0/0x460 mm/page_alloc.c:4501
 folio_alloc+0x1e/0x30 mm/mempolicy.c:2289
 filemap_alloc_folio+0xdf/0x490 mm/filemap.c:1004
 __filemap_get_folio+0x3fb/0xbe0 mm/filemap.c:1962
 pagecache_get_page+0x2a/0x250 mm/folio-compat.c:99
 find_or_create_page include/linux/pagemap.h:755 [inline]
 grab_cache_page include/linux/pagemap.h:877 [inline]
 __get_metapage+0x2ab/0xfa0 fs/jfs/jfs_metapage.c:613
 diNewExt+0xa4b/0x3000 fs/jfs/jfs_imap.c:2275
 diAllocExt fs/jfs/jfs_imap.c:1952 [inline]
 diAllocAG+0xbe2/0x1dd0 fs/jfs/jfs_imap.c:1669
 diAlloc+0x1df/0x1680 fs/jfs/jfs_imap.c:1590
 ialloc+0x8c/0x940 fs/jfs/jfs_inode.c:56
 jfs_mkdir+0x1e5/0xae0 fs/jfs/namei.c:225
 vfs_mkdir+0x2a5/0x470 fs/namei.c:4121
 do_mkdirat+0x1dc/0x450 fs/namei.c:4144
 __do_sys_mkdirat fs/namei.c:4159 [inline]
 __se_sys_mkdirat fs/namei.c:4157 [inline]
 __x64_sys_mkdirat+0x89/0xa0 fs/namei.c:4157
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1182 [inline]
 free_unref_page_prepare+0x7d7/0x8f0 mm/page_alloc.c:2366
 free_unref_page+0x32/0x2e0 mm/page_alloc.c:2459
 kasan_depopulate_vmalloc_pte+0x75/0x90 mm/kasan/shadow.c:427
 apply_to_pte_range mm/memory.c:2604 [inline]
 apply_to_pmd_range mm/memory.c:2648 [inline]
 apply_to_pud_range mm/memory.c:2684 [inline]
 apply_to_p4d_range mm/memory.c:2720 [inline]
 __apply_to_page_range+0x860/0xdd0 mm/memory.c:2756
 kasan_release_vmalloc+0x97/0xb0 mm/kasan/shadow.c:544
 __purge_vmap_area_lazy+0xf7c/0x1ab0 mm/vmalloc.c:1778
 drain_vmap_area_work+0x40/0xd0 mm/vmalloc.c:1812
 process_one_work kernel/workqueue.c:2653 [inline]
 process_scheduled_works+0xa60/0x1600 kernel/workqueue.c:2730
 worker_thread+0xa5e/0xfe0 kernel/workqueue.c:2811
 kthread+0x2fa/0x390 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
Modules linked in:
CPU: 0 PID: 7813 Comm: syz.0.491 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0x18c/0x250 lib/dump_stack.c:106
 bad_page+0x14b/0x170 mm/page_alloc.c:539
 free_page_is_bad mm/page_alloc.c:988 [inline]
 free_pages_prepare mm/page_alloc.c:1173 [inline]
 free_unref_page_prepare+0x884/0x8f0 mm/page_alloc.c:2366
 free_unref_page_list+0xbe/0x860 mm/page_alloc.c:2505
 release_pages+0x208a/0x2300 mm/swap.c:1022
 __folio_batch_release+0x71/0xe0 mm/swap.c:1042
 folio_batch_release include/linux/pagevec.h:83 [inline]
 truncate_inode_pages_range+0x381/0xea0 mm/truncate.c:396
 jfs_remount+0x34c/0x5c0 fs/jfs/super.c:451
 reconfigure_super+0x229/0x8e0 fs/super.c:1151
 do_remount fs/namespace.c:2927 [inline]
 path_mount+0xcfe/0xfa0 fs/namespace.c:3705
 do_mount fs/namespace.c:3726 [inline]
 __do_sys_mount fs/namespace.c:3935 [inline]
 __se_sys_mount+0x2e7/0x3d0 fs/namespace.c:3912
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fd04d79e0ca
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd04e659e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fd04e659ee0 RCX: 00007fd04d79e0ca
RDX: 0000200000000f40 RSI: 0000200000000f00 RDI: 0000000000000000
RBP: 0000200000000f40 R08: 00007fd04e659ee0 R09: 0000000001a5a438
R10: 0000000001a5a438 R11: 0000000000000246 R12: 0000200000000f00
R13: 00007fd04e659ea0 R14: 0000000000000000 R15: 0000200000001d00
 </TASK>