BUG: Bad page state in process syz-executor pfn:11149e page:000000008717e4da refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x11149e flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc000346cec8 ffff80001be775c0 0000000000000000 raw: 0000000000000004 ffff0000d1543000 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:111b3b page:0000000041611eaa refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x111b3b flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc0003b16888 ffff80001be775c0 0000000000000000 raw: 0000000000000003 ffff0000d15430f8 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 0 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:10d75a page:00000000b3f28388 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10d75a flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc000378bbc8 ffff80001be775c0 0000000000000000 raw: 0000000000000004 ffff0000e82f71f0 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 0 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:11e2ef page:0000000076d4528c refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x11e2ef flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc0003266508 ffff80001be775c0 0000000000000000 raw: 0000000000000003 ffff0000e82f72e8 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 0 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:11305d page:000000002f7b44b0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x11305d flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc00032f5c88 ffff80001be775c0 0000000000000000 raw: 0000000000000004 ffff0000ca3a23e0 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:10bd72 page:000000007c598e16 refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x10bd72 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc000333b608 ffff80001be775c0 0000000000000000 raw: 0000000000000003 ffff0000ca3a24d8 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:1078ce page:00000000938aa601 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x1078ce flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc00036aec08 ffff80001be775c0 0000000000000000 raw: 0000000000000004 ffff0000c2755000 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:11abb0 page:00000000ed3b6606 refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x11abb0 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc000368d788 ffff80001be775c0 0000000000000000 raw: 0000000000000003 ffff0000c27550f8 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:10df04 page:0000000011479b77 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10df04 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc00032e5d48 ffff80001be775c0 0000000000000000 raw: 0000000000000004 ffff0000d308c5d0 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 0 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:10b975 page:00000000af33f70f refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x10b975 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc0003245ac8 ffff80001be775c0 0000000000000000 raw: 0000000000000003 ffff0000d308c6c8 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 0 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:112066 page:00000000bfba51eb refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x112066 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc0003b235c8 ffff80001be775c0 0000000000000000 raw: 0000000000000004 ffff0000cfb592e8 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 0 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:12c8d7 page:00000000f9a6941a refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x12c8d7 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc0003283188 ffff80001be775c0 0000000000000000 raw: 0000000000000003 ffff0000cfb593e0 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 0 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:11977a page:0000000090b4bce8 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x11977a flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc0003b237c8 ffff80001be775c0 0000000000000000 raw: 0000000000000004 ffff0000c8abb4d8 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:12c8df page:0000000010c2c85d refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x12c8df flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc000329a088 ffff80001be775c0 0000000000000000 raw: 0000000000000003 ffff0000c27556c8 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:11c366 page:000000007d3d9ca4 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x11c366 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc0003301e88 ffff80001be775c0 0000000000000000 raw: 0000000000000004 ffff0000d59437c0 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 0 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:10c07a page:00000000c5a5e6a2 refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x10c07a flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc00032b0148 ffff80001be775c0 0000000000000000 raw: 0000000000000003 ffff0000d59438b8 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 0 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:11aa72 page:00000000c6e953ba refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x11aa72 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc0003a34688 ffff80001be775c0 0000000000000000 raw: 0000000000000004 ffff0000ca4d89b0 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:128d1a page:00000000b76bd89d refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x128d1a flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc0003b2fe88 ffff80001be775c0 0000000000000000 raw: 0000000000000003 ffff0000ca4d8aa8 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 0 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:1081f2 page:00000000d35d4994 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x1081f2 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc0003a3ac48 ffff80001be775c0 0000000000000000 raw: 0000000000000004 ffff0000db2ef5d0 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:128eb1 page:00000000d6edc36d refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x128eb1 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc00035dae48 ffff80001be775c0 0000000000000000 raw: 0000000000000003 ffff0000db2ef6c8 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:10b75a page:000000000107a4a2 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10b75a flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc00032eea88 ffff80001be775c0 0000000000000000 raw: 0000000000000004 ffff0000caa8d7c0 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 0 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:10bbaa page:000000003d4c0eeb refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x10bbaa flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc000336e048 ffff80001be775c0 0000000000000000 raw: 0000000000000003 ffff0000caa8d8b8 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:112b38 page:00000000a339254e refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x112b38 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc00032be748 ffff80001be775c0 0000000000000000 raw: 0000000000000004 ffff0000e7bdc9b0 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:10af9d page:000000004f927e8f refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x10af9d flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc000345a148 ffff80001be775c0 0000000000000000 raw: 0000000000000003 ffff0000e7bdcaa8 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:112a84 page:0000000006fc8511 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x112a84 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc0003473108 ffff80001be775c0 0000000000000000 raw: 0000000000000004 ffff0000d30663e0 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:111cc4 page:000000007a6d66b2 refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x111cc4 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc00032ded48 ffff80001be775c0 0000000000000000 raw: 0000000000000003 ffff0000d30664d8 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:12c798 page:0000000010bd9cfb refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x12c798 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc00033eba88 ffff80001be775c0 0000000000000000 raw: 0000000000000004 ffff0000d01225d0 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:10faea page:00000000cfedb5ba refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x10faea flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc000347e088 ffff80001be775c0 0000000000000000 raw: 0000000000000003 ffff0000d01226c8 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:1105b0 page:0000000020ac2189 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x1105b0 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc0003558948 ffff80001be775c0 0000000000000000 raw: 0000000000000004 ffff0000d3e0a7c0 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 0 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:115625 page:000000000a806832 refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x115625 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc0003a07f88 ffff80001be775c0 0000000000000000 raw: 0000000000000003 ffff0000d3e0a8b8 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 0 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:108487 page:00000000380cdf27 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x108487 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc0003232dc8 ffff80001be775c0 0000000000000000 raw: 0000000000000004 ffff0000dd4d83e0 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:108cb7 page:00000000aa0ed137 refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x108cb7 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc00036f50c8 ffff80001be775c0 0000000000000000 raw: 0000000000000003 ffff0000dd4d84d8 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:11b0aa page:00000000bade4908 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x11b0aa flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc00032a3148 ffff80001be775c0 0000000000000000 raw: 0000000000000004 ffff0000d1e069b0 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 0 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:10a8c5 page:00000000636b0aa9 refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x10a8c5 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc00030a1a08 ffff80001be775c0 0000000000000000 raw: 0000000000000003 ffff0000d1e06aa8 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 0 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:1114cb page:0000000094de0112 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x1114cb flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc000347fa88 ffff80001be775c0 0000000000000000 raw: 0000000000000004 ffff0000c95625d0 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:111fea page:00000000aedead15 refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x111fea flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc00032841c8 ffff80001be775c0 0000000000000000 raw: 0000000000000003 ffff0000c95626c8 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 0 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:10ba43 page:00000000a4dc9fc2 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10ba43 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc0003b21a08 ffff80001be775c0 0000000000000000 raw: 0000000000000004 ffff0000d77a37c0 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:12c868 page:00000000c7c6b0d5 refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x12c868 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc0003221b48 ffff80001be775c0 0000000000000000 raw: 0000000000000003 ffff0000d77a38b8 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:101f07 page:00000000027d6852 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x101f07 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc000344efc8 ffff80001be775c0 0000000000000000 raw: 0000000000000004 ffff0000c9df5ba0 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:1113bf page:0000000070527324 refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x1113bf flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc00032dae08 ffff80001be775c0 0000000000000000 raw: 0000000000000003 ffff0000c9df5c98 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:10a3ba page:000000003689df4a refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10a3ba flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc0003b01488 ffff80001be775c0 0000000000000000 raw: 0000000000000004 ffff0000c1f38000 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 0 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:12c052 page:00000000cfe90db7 refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x12c052 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc00032895c8 ffff80001be775c0 0000000000000000 raw: 0000000000000003 ffff0000c1f380f8 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 0 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:10a6d5 page:00000000d2a680b6 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10a6d5 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc000324b248 ffff80001be775c0 0000000000000000 raw: 0000000000000004 ffff0000db7c61f0 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:1092c9 page:000000005a99aa63 refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x1092c9 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc00032daf88 ffff80001be775c0 0000000000000000 raw: 0000000000000003 ffff0000db7c62e8 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:11e5c4 page:00000000eb50533f refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x11e5c4 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc0003451548 ffff80001be775c0 0000000000000000 raw: 0000000000000004 ffff0000d12a23e0 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 0 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:111455 page:00000000290b465d refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x111455 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc00031e9b48 ffff80001be775c0 0000000000000000 raw: 0000000000000003 ffff0000d12a24d8 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 0 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:111a12 page:0000000049f546bb refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x111a12 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc00036aaa48 ffff80001be775c0 0000000000000000 raw: 0000000000000004 ffff0000e8ec57c0 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:11aaa9 page:0000000045f152e3 refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x11aaa9 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc00032dd488 ffff80001be775c0 0000000000000000 raw: 0000000000000003 ffff0000e8ec58b8 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:1129dd page:00000000dee0ad35 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x1129dd flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc00031566c8 ffff80001be775c0 0000000000000000 raw: 0000000000000004 ffff0000ec8aa5d0 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:10559b page:00000000048a232c refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x10559b flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc0003b00ec8 ffff80001be775c0 0000000000000000 raw: 0000000000000003 ffff0000ec8aa6c8 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:1083d0 page:00000000e4bc9887 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x1083d0 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc0003231b48 ffff80001be775c0 0000000000000000 raw: 0000000000000004 ffff0000e7bd29b0 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 0 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:108c6d page:000000000cc5615f refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x108c6d flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc0003b16dc8 ffff80001be775c0 0000000000000000 raw: 0000000000000003 ffff0000e7bd2aa8 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 0 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:10a519 page:00000000a0cabcc2 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10a519 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc000344c148 ffff80001be775c0 0000000000000000 raw: 0000000000000004 ffff0000c8bcc7c0 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:111305 page:00000000e502854d refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x111305 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc00034f5088 ffff80001be775c0 0000000000000000 raw: 0000000000000003 ffff0000c8bcc8b8 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:113b6e page:00000000466d71df refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x113b6e flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc0003a020c8 ffff80001be775c0 0000000000000000 raw: 0000000000000004 ffff0000cd72a9b0 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:128083 page:00000000ee0418c0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x128083 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc0003a31248 ffff80001be775c0 0000000000000000 raw: 0000000000000003 ffff0000cd72aaa8 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:12c822 page:000000005a766264 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x12c822 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc000346e948 ffff80001be775c0 0000000000000000 raw: 0000000000000004 ffff0000c793aba0 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:111ba5 page:0000000014cfbdca refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x111ba5 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc00032eac48 ffff80001be775c0 0000000000000000 raw: 0000000000000003 ffff0000c793ac98 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:12c04e page:00000000aab7c2d6 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x12c04e flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc000309d8c8 ffff80001be775c0 0000000000000000 raw: 0000000000000004 ffff0000ec8bbd90 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 BUG: Bad page state in process syz-executor pfn:102763 page:0000000094248469 refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x102763 flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000002006 fffffc00031e6488 ffff80001be775c0 0000000000000000 raw: 0000000000000003 ffff0000ec8bbe88 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set Modules linked in: CPU: 1 PID: 4713 Comm: syz-executor Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 bad_page+0x188/0x1a8 mm/page_alloc.c:652 check_free_page_bad+0xf4/0x16c mm/page_alloc.c:1199 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x738/0xa84 mm/page_alloc.c:3317 free_unref_page_list+0xdc/0x730 mm/page_alloc.c:3433 release_pages+0x13bc/0x16dc mm/swap.c:963 __pagevec_release+0x84/0xf8 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2c8/0xa04 mm/truncate.c:329 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:264 jfs_umount+0x1c4/0x328 fs/jfs/jfs_umount.c:89 jfs_put_super+0x90/0x188 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x134 fs/super.c:335 deactivate_super+0xf0/0x110 fs/super.c:366 cleanup_mnt+0x3b8/0x46c fs/namespace.c:1148 __cleanup_mnt+0x20/0x30 fs/namespace.c:1155 task_work_run+0x12c/0x1d8 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x2450/0x309c arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1d0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584