loop1: detected capacity change from 0 to 32768
jfs_mkdir: dtInsert returned -EIO
ERROR: (device loop1): jfs_mkdir: 
ERROR: (device loop1): remounting filesystem as read-only
BUG: Bad page state in process syz.1.1091  pfn:2bb71
page:ffffea0000aedc40 refcount:0 mapcount:0 mapping:0000000000000000 index:0x2f pfn:0x2bb71
flags: 0xfff0000000800c(referenced|uptodate|private|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff0000000800c ffffea0001df1008 ffffc90015c57940 0000000000000000
raw: 000000000000002f ffff888021345000 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 9870, tgid 9868 (syz.1.1091), ts 586045659179, free_ts 584360463779
 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:4125
 do_mkdirat+0x1dc/0x450 fs/namei.c:4148
 __do_sys_mkdirat fs/namei.c:4163 [inline]
 __se_sys_mkdirat fs/namei.c:4161 [inline]
 __x64_sys_mkdirat+0x89/0xa0 fs/namei.c:4161
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
 vfree+0x1a7/0x340 mm/vmalloc.c:2868
 xz_dec_lzma2_end+0x67/0xa0 lib/xz/xz_dec_lzma2.c:1204
 xz_dec_end+0x49/0x90 lib/xz/xz_dec_stream.c:831
 squashfs_xz_free+0x3e/0x50 fs/squashfs/xz_wrapper.c:113
 squashfs_decompressor_destroy+0x97/0xb0 fs/squashfs/decompressor_single.c:57
 squashfs_put_super+0x13f/0x230 fs/squashfs/super.c:597
 generic_shutdown_super+0x134/0x2b0 fs/super.c:693
 kill_block_super+0x44/0x90 fs/super.c:1660
 deactivate_locked_super+0x97/0x100 fs/super.c:481
 cleanup_mnt+0x3d7/0x460 fs/namespace.c:1259
 task_work_run+0x1d4/0x260 kernel/task_work.c:245
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:177
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline]
 syscall_exit_to_user_mode+0x1a/0x50 kernel/entry/common.c:302
Modules linked in:
CPU: 0 PID: 9870 Comm: syz.1.1091 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026
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: 0033:0x7f7d5119de99
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7d51ff0028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f7d51425fa0 RCX: 00007f7d5119de99
RDX: 0000000000000000 RSI: 0000200000000180 RDI: 0000000000000000
RBP: 00007f7d51233eaf R08: 0000000000000000 R09: 0000000000000000
R10: 0000000002390024 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f7d51426038 R14: 00007f7d51425fa0 R15: 00007fff31d527f8
 </TASK>
BUG: Bad page state in process syz.1.1091  pfn:77c40
page:ffffea0001df1000 refcount:0 mapcount:0 mapping:0000000000000000 index:0x2e pfn:0x77c40
flags: 0xfff0000000800c(referenced|uptodate|private|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff0000000800c ffffea0001df1048 ffffc90015c57940 0000000000000000
raw: 000000000000002e ffff8880213450f8 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 9870, tgid 9868 (syz.1.1091), ts 586045603075, free_ts 584360480042
 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:4125
 do_mkdirat+0x1dc/0x450 fs/namei.c:4148
 __do_sys_mkdirat fs/namei.c:4163 [inline]
 __se_sys_mkdirat fs/namei.c:4161 [inline]
 __x64_sys_mkdirat+0x89/0xa0 fs/namei.c:4161
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
 vfree+0x1a7/0x340 mm/vmalloc.c:2868
 xz_dec_lzma2_end+0x67/0xa0 lib/xz/xz_dec_lzma2.c:1204
 xz_dec_end+0x49/0x90 lib/xz/xz_dec_stream.c:831
 squashfs_xz_free+0x3e/0x50 fs/squashfs/xz_wrapper.c:113
 squashfs_decompressor_destroy+0x97/0xb0 fs/squashfs/decompressor_single.c:57
 squashfs_put_super+0x13f/0x230 fs/squashfs/super.c:597
 generic_shutdown_super+0x134/0x2b0 fs/super.c:693
 kill_block_super+0x44/0x90 fs/super.c:1660
 deactivate_locked_super+0x97/0x100 fs/super.c:481
 cleanup_mnt+0x3d7/0x460 fs/namespace.c:1259
 task_work_run+0x1d4/0x260 kernel/task_work.c:245
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:177
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline]
 syscall_exit_to_user_mode+0x1a/0x50 kernel/entry/common.c:302
Modules linked in:
CPU: 0 PID: 9870 Comm: syz.1.1091 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026
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: 0033:0x7f7d5119de99
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7d51ff0028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f7d51425fa0 RCX: 00007f7d5119de99
RDX: 0000000000000000 RSI: 0000200000000180 RDI: 0000000000000000
RBP: 00007f7d51233eaf R08: 0000000000000000 R09: 0000000000000000
R10: 0000000002390024 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f7d51426038 R14: 00007f7d51425fa0 R15: 00007fff31d527f8
 </TASK>
BUG: Bad page state in process syz.1.1091  pfn:77c41
page:ffffea0001df1040 refcount:0 mapcount:0 mapping:0000000000000000 index:0x2d pfn:0x77c41
flags: 0xfff0000000800c(referenced|uptodate|private|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff0000000800c ffffea0001eef088 ffffc90015c57940 0000000000000000
raw: 000000000000002d ffff8880213451f0 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 9870, tgid 9868 (syz.1.1091), ts 586045536251, free_ts 584360496064
 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:4125
 do_mkdirat+0x1dc/0x450 fs/namei.c:4148
 __do_sys_mkdirat fs/namei.c:4163 [inline]
 __se_sys_mkdirat fs/namei.c:4161 [inline]
 __x64_sys_mkdirat+0x89/0xa0 fs/namei.c:4161
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
 vfree+0x1a7/0x340 mm/vmalloc.c:2868
 xz_dec_lzma2_end+0x67/0xa0 lib/xz/xz_dec_lzma2.c:1204
 xz_dec_end+0x49/0x90 lib/xz/xz_dec_stream.c:831
 squashfs_xz_free+0x3e/0x50 fs/squashfs/xz_wrapper.c:113
 squashfs_decompressor_destroy+0x97/0xb0 fs/squashfs/decompressor_single.c:57
 squashfs_put_super+0x13f/0x230 fs/squashfs/super.c:597
 generic_shutdown_super+0x134/0x2b0 fs/super.c:693
 kill_block_super+0x44/0x90 fs/super.c:1660
 deactivate_locked_super+0x97/0x100 fs/super.c:481
 cleanup_mnt+0x3d7/0x460 fs/namespace.c:1259
 task_work_run+0x1d4/0x260 kernel/task_work.c:245
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:177
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline]
 syscall_exit_to_user_mode+0x1a/0x50 kernel/entry/common.c:302
Modules linked in:
CPU: 1 PID: 9870 Comm: syz.1.1091 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026
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: 0033:0x7f7d5119de99
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7d51ff0028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f7d51425fa0 RCX: 00007f7d5119de99
RDX: 0000000000000000 RSI: 0000200000000180 RDI: 0000000000000000
RBP: 00007f7d51233eaf R08: 0000000000000000 R09: 0000000000000000
R10: 0000000002390024 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f7d51426038 R14: 00007f7d51425fa0 R15: 00007fff31d527f8
 </TASK>
BUG: Bad page state in process syz.1.1091  pfn:7bbc2
page:ffffea0001eef080 refcount:0 mapcount:0 mapping:0000000000000000 index:0x2c pfn:0x7bbc2
flags: 0xfff0000000800c(referenced|uptodate|private|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff0000000800c ffffea0001e8eac8 ffffc90015c57940 0000000000000000
raw: 000000000000002c ffff8880213452e8 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 9870, tgid 9868 (syz.1.1091), ts 586044084809, free_ts 584360511469
 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:4125
 do_mkdirat+0x1dc/0x450 fs/namei.c:4148
 __do_sys_mkdirat fs/namei.c:4163 [inline]
 __se_sys_mkdirat fs/namei.c:4161 [inline]
 __x64_sys_mkdirat+0x89/0xa0 fs/namei.c:4161
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
 vfree+0x1a7/0x340 mm/vmalloc.c:2868
 xz_dec_lzma2_end+0x67/0xa0 lib/xz/xz_dec_lzma2.c:1204
 xz_dec_end+0x49/0x90 lib/xz/xz_dec_stream.c:831
 squashfs_xz_free+0x3e/0x50 fs/squashfs/xz_wrapper.c:113
 squashfs_decompressor_destroy+0x97/0xb0 fs/squashfs/decompressor_single.c:57
 squashfs_put_super+0x13f/0x230 fs/squashfs/super.c:597
 generic_shutdown_super+0x134/0x2b0 fs/super.c:693
 kill_block_super+0x44/0x90 fs/super.c:1660
 deactivate_locked_super+0x97/0x100 fs/super.c:481
 cleanup_mnt+0x3d7/0x460 fs/namespace.c:1259
 task_work_run+0x1d4/0x260 kernel/task_work.c:245
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:177
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline]
 syscall_exit_to_user_mode+0x1a/0x50 kernel/entry/common.c:302
Modules linked in:
CPU: 1 PID: 9870 Comm: syz.1.1091 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026
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: 0033:0x7f7d5119de99
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7d51ff0028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f7d51425fa0 RCX: 00007f7d5119de99
RDX: 0000000000000000 RSI: 0000200000000180 RDI: 0000000000000000
RBP: 00007f7d51233eaf R08: 0000000000000000 R09: 0000000000000000
R10: 0000000002390024 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f7d51426038 R14: 00007f7d51425fa0 R15: 00007fff31d527f8
 </TASK>