ERROR: (device loop7): diWrite: ixpxd invalid
ERROR: (device loop7): remounting filesystem as read-only
ERROR: (device loop7): txCommit:
BUG: Bad page state in process syz.7.2441 pfn:31220
page:ffffea0000c48800 refcount:0 mapcount:0 mapping:0000000000000000 index:0x43 pfn:0x31220
flags: 0xfff0000000800c(referenced|uptodate|private|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff0000000800c ffffea0001873088 ffffc900054d7940 0000000000000000
raw: 0000000000000043 ffff88801e7481f0 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 15895, tgid 15894 (syz.7.2441), ts 1546587257544, free_ts 1546539416175
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:4168
do_mkdirat+0x1dc/0x450 fs/namei.c:4191
__do_sys_mkdirat fs/namei.c:4206 [inline]
__se_sys_mkdirat fs/namei.c:4204 [inline]
__x64_sys_mkdirat+0x89/0xa0 fs/namei.c:4204
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_list+0xbe/0x860 mm/page_alloc.c:2505
release_pages+0x208a/0x2300 mm/swap.c:1022
tlb_batch_pages_flush mm/mmu_gather.c:99 [inline]
tlb_flush_mmu_free mm/mmu_gather.c:294 [inline]
tlb_flush_mmu+0x379/0x510 mm/mmu_gather.c:301
tlb_finish_mmu+0xf4/0x220 mm/mmu_gather.c:425
exit_mmap+0x428/0xb90 mm/mmap.c:3315
__mmput+0x118/0x3a0 kernel/fork.c:1362
exit_mm+0x23f/0x340 kernel/exit.c:576
do_exit+0x909/0x2530 kernel/exit.c:877
do_group_exit+0x22d/0x2f0 kernel/exit.c:1032
__do_sys_exit_group kernel/exit.c:1043 [inline]
__se_sys_exit_group kernel/exit.c:1041 [inline]
__x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1041
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
Modules linked in:
CPU: 0 PID: 15895 Comm: syz.7.2441 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Call Trace:
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: 0033:0x7fb4b339f3ca
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:00007fb4b433de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fb4b433dee0 RCX: 00007fb4b339f3ca
RDX: 0000200000000f40 RSI: 0000200000000f00 RDI: 0000000000000000
RBP: 0000200000000f40 R08: 00007fb4b433dee0 R09: 0000000001a6a038
R10: 0000000001a6a038 R11: 0000000000000246 R12: 0000200000000f00
R13: 00007fb4b433dea0 R14: 0000000000000000 R15: 0000200000002cc0
BUG: Bad page state in process syz.7.2441 pfn:61cc2
page:ffffea0001873080 refcount:0 mapcount:0 mapping:0000000000000000 index:0x42 pfn:0x61cc2
flags: 0xfff0000000800c(referenced|uptodate|private|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff0000000800c ffffea0001aa5608 ffffc900054d7940 0000000000000000
raw: 0000000000000042 ffff88801e748000 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 15895, tgid 15894 (syz.7.2441), ts 1546587195735, free_ts 1546539774693
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:4168
do_mkdirat+0x1dc/0x450 fs/namei.c:4191
__do_sys_mkdirat fs/namei.c:4206 [inline]
__se_sys_mkdirat fs/namei.c:4204 [inline]
__x64_sys_mkdirat+0x89/0xa0 fs/namei.c:4204
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
tlb_batch_list_free mm/mmu_gather.c:115 [inline]
tlb_finish_mmu+0x13e/0x220 mm/mmu_gather.c:428
exit_mmap+0x428/0xb90 mm/mmap.c:3315
__mmput+0x118/0x3a0 kernel/fork.c:1362
exit_mm+0x23f/0x340 kernel/exit.c:576
do_exit+0x909/0x2530 kernel/exit.c:877
do_group_exit+0x22d/0x2f0 kernel/exit.c:1032
__do_sys_exit_group kernel/exit.c:1043 [inline]
__se_sys_exit_group kernel/exit.c:1041 [inline]
__x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1041
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
Modules linked in:
CPU: 0 PID: 15895 Comm: syz.7.2441 Tainted: G B syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Call Trace:
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: 0033:0x7fb4b339f3ca
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:00007fb4b433de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fb4b433dee0 RCX: 00007fb4b339f3ca
RDX: 0000200000000f40 RSI: 0000200000000f00 RDI: 0000000000000000
RBP: 0000200000000f40 R08: 00007fb4b433dee0 R09: 0000000001a6a038
R10: 0000000001a6a038 R11: 0000000000000246 R12: 0000200000000f00
R13: 00007fb4b433dea0 R14: 0000000000000000 R15: 0000200000002cc0
BUG: Bad page state in process syz.7.2441 pfn:6a958
page:ffffea0001aa5600 refcount:0 mapcount:0 mapping:0000000000000000 index:0x41 pfn:0x6a958
flags: 0xfff0000000800c(referenced|uptodate|private|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff0000000800c ffffea00018677c8 ffffc900054d7940 0000000000000000
raw: 0000000000000041 ffff88801e7483e0 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 15895, tgid 15894 (syz.7.2441), ts 1546587128449, free_ts 1546539791663
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:4168
do_mkdirat+0x1dc/0x450 fs/namei.c:4191
__do_sys_mkdirat fs/namei.c:4206 [inline]
__se_sys_mkdirat fs/namei.c:4204 [inline]
__x64_sys_mkdirat+0x89/0xa0 fs/namei.c:4204
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
tlb_batch_list_free mm/mmu_gather.c:115 [inline]
tlb_finish_mmu+0x13e/0x220 mm/mmu_gather.c:428
exit_mmap+0x428/0xb90 mm/mmap.c:3315
__mmput+0x118/0x3a0 kernel/fork.c:1362
exit_mm+0x23f/0x340 kernel/exit.c:576
do_exit+0x909/0x2530 kernel/exit.c:877
do_group_exit+0x22d/0x2f0 kernel/exit.c:1032
__do_sys_exit_group kernel/exit.c:1043 [inline]
__se_sys_exit_group kernel/exit.c:1041 [inline]
__x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1041
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
Modules linked in:
CPU: 0 PID: 15895 Comm: syz.7.2441 Tainted: G B syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Call Trace:
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: 0033:0x7fb4b339f3ca
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:00007fb4b433de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fb4b433dee0 RCX: 00007fb4b339f3ca
RDX: 0000200000000f40 RSI: 0000200000000f00 RDI: 0000000000000000
RBP: 0000200000000f40 R08: 00007fb4b433dee0 R09: 0000000001a6a038
R10: 0000000001a6a038 R11: 0000000000000246 R12: 0000200000000f00
R13: 00007fb4b433dea0 R14: 0000000000000000 R15: 0000200000002cc0