BUG: Bad page state in process syz-executor.0  pfn:11d9cf
page:000000005914fe28 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x11d9cf
flags: 0x5ffc00000002004(uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002004 fffffc000349b588 ffff80001f1975c0 0000000000000000
raw: 0000000000000004 ffff0000ddaeb9b0 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 1 PID: 4272 Comm: syz-executor.0 Not tainted 5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c 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+0xf8/0x160 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+0x744/0xaa0 mm/page_alloc.c:3317
 free_unref_page_list+0xdc/0x754 mm/page_alloc.c:3433
 release_pages+0x13c8/0x16e0 mm/swap.c:963
 __pagevec_release+0x84/0xf8 mm/swap.c:983
 pagevec_release include/linux/pagevec.h:81 [inline]
 truncate_inode_pages_range+0x29c/0x9b8 mm/truncate.c:329
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425
 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:279
 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+0xb8/0x13c fs/super.c:335
 deactivate_super+0xf8/0x118 fs/super.c:366
 cleanup_mnt+0x3a4/0x458 fs/namespace.c:1139
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1146
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 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+0xf0/0x1e0 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.0  pfn:119063
page:0000000048a743fd refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x119063
flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002006 fffffc00035c3bc8 ffff80001f1975c0 0000000000000000
raw: 0000000000000004 ffff0000d45724d8 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 0 PID: 4272 Comm: syz-executor.0 Tainted: G    B             5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c 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+0xf8/0x160 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+0x744/0xaa0 mm/page_alloc.c:3317
 free_unref_page_list+0xdc/0x754 mm/page_alloc.c:3433
 release_pages+0x13c8/0x16e0 mm/swap.c:963
 __pagevec_release+0x84/0xf8 mm/swap.c:983
 pagevec_release include/linux/pagevec.h:81 [inline]
 truncate_inode_pages_range+0x29c/0x9b8 mm/truncate.c:329
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425
 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:279
 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+0xb8/0x13c fs/super.c:335
 deactivate_super+0xf8/0x118 fs/super.c:366
 cleanup_mnt+0x3a4/0x458 fs/namespace.c:1139
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1146
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 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+0xf0/0x1e0 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.0  pfn:10f515
page:000000000e649dbc refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10f515
flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002006 fffffc00032317c8 ffff80001f1975c0 0000000000000000
raw: 0000000000000004 ffff0000d0dd09b0 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 0 PID: 4272 Comm: syz-executor.0 Tainted: G    B             5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c 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+0xf8/0x160 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+0x744/0xaa0 mm/page_alloc.c:3317
 free_unref_page_list+0xdc/0x754 mm/page_alloc.c:3433
 release_pages+0x13c8/0x16e0 mm/swap.c:963
 __pagevec_release+0x84/0xf8 mm/swap.c:983
 pagevec_release include/linux/pagevec.h:81 [inline]
 truncate_inode_pages_range+0x29c/0x9b8 mm/truncate.c:329
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425
 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:279
 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+0xb8/0x13c fs/super.c:335
 deactivate_super+0xf8/0x118 fs/super.c:366
 cleanup_mnt+0x3a4/0x458 fs/namespace.c:1139
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1146
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 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+0xf0/0x1e0 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.0  pfn:10871a
page:00000000a0400925 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10871a
flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002006 fffffc000338c7c8 ffff80001f1975c0 0000000000000000
raw: 0000000000000004 ffff0000cafe9000 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 0 PID: 4272 Comm: syz-executor.0 Tainted: G    B             5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c 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+0xf8/0x160 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+0x744/0xaa0 mm/page_alloc.c:3317
 free_unref_page_list+0xdc/0x754 mm/page_alloc.c:3433
 release_pages+0x13c8/0x16e0 mm/swap.c:963
 __pagevec_release+0x84/0xf8 mm/swap.c:983
 pagevec_release include/linux/pagevec.h:81 [inline]
 truncate_inode_pages_range+0x29c/0x9b8 mm/truncate.c:329
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425
 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:279
 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+0xb8/0x13c fs/super.c:335
 deactivate_super+0xf8/0x118 fs/super.c:366
 cleanup_mnt+0x3a4/0x458 fs/namespace.c:1139
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1146
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 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+0xf0/0x1e0 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.0  pfn:11cdf3
page:0000000093bc8a31 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x11cdf3
flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002006 fffffc0003352348 ffff80001f1975c0 0000000000000000
raw: 0000000000000004 ffff0000ca0c74d8 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 0 PID: 4272 Comm: syz-executor.0 Tainted: G    B             5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c 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+0xf8/0x160 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+0x744/0xaa0 mm/page_alloc.c:3317
 free_unref_page_list+0xdc/0x754 mm/page_alloc.c:3433
 release_pages+0x13c8/0x16e0 mm/swap.c:963
 __pagevec_release+0x84/0xf8 mm/swap.c:983
 pagevec_release include/linux/pagevec.h:81 [inline]
 truncate_inode_pages_range+0x29c/0x9b8 mm/truncate.c:329
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425
 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:279
 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+0xb8/0x13c fs/super.c:335
 deactivate_super+0xf8/0x118 fs/super.c:366
 cleanup_mnt+0x3a4/0x458 fs/namespace.c:1139
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1146
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 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+0xf0/0x1e0 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.0  pfn:10b802
page:00000000a49bcd12 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10b802
flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002006 fffffc0003356188 ffff80001f1975c0 0000000000000000
raw: 0000000000000004 ffff0000cafe9aa8 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 1 PID: 4272 Comm: syz-executor.0 Tainted: G    B             5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c 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+0xf8/0x160 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+0x744/0xaa0 mm/page_alloc.c:3317
 free_unref_page_list+0xdc/0x754 mm/page_alloc.c:3433
 release_pages+0x13c8/0x16e0 mm/swap.c:963
 __pagevec_release+0x84/0xf8 mm/swap.c:983
 pagevec_release include/linux/pagevec.h:81 [inline]
 truncate_inode_pages_range+0x29c/0x9b8 mm/truncate.c:329
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425
 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:279
 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+0xb8/0x13c fs/super.c:335
 deactivate_super+0xf8/0x118 fs/super.c:366
 cleanup_mnt+0x3a4/0x458 fs/namespace.c:1139
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1146
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 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+0xf0/0x1e0 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.0  pfn:11c42c
page:000000009dd51d04 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x11c42c
flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002006 fffffc000335e788 ffff80001f1975c0 0000000000000000
raw: 0000000000000004 ffff0000d66f7000 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 1 PID: 4272 Comm: syz-executor.0 Tainted: G    B             5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c 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+0xf8/0x160 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+0x744/0xaa0 mm/page_alloc.c:3317
 free_unref_page_list+0xdc/0x754 mm/page_alloc.c:3433
 release_pages+0x13c8/0x16e0 mm/swap.c:963
 __pagevec_release+0x84/0xf8 mm/swap.c:983
 pagevec_release include/linux/pagevec.h:81 [inline]
 truncate_inode_pages_range+0x29c/0x9b8 mm/truncate.c:329
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425
 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:279
 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+0xb8/0x13c fs/super.c:335
 deactivate_super+0xf8/0x118 fs/super.c:366
 cleanup_mnt+0x3a4/0x458 fs/namespace.c:1139
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1146
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 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+0xf0/0x1e0 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.0  pfn:117457
page:00000000d64dddc1 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x117457
flags: 0x5ffc00000002004(uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002004 fffffc000320f9c8 ffff80001f1975c0 0000000000000000
raw: 0000000000000004 ffff0000c81f95d0 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 1 PID: 4272 Comm: syz-executor.0 Tainted: G    B             5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c 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+0xf8/0x160 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+0x744/0xaa0 mm/page_alloc.c:3317
 free_unref_page_list+0xdc/0x754 mm/page_alloc.c:3433
 release_pages+0x13c8/0x16e0 mm/swap.c:963
 __pagevec_release+0x84/0xf8 mm/swap.c:983
 pagevec_release include/linux/pagevec.h:81 [inline]
 truncate_inode_pages_range+0x29c/0x9b8 mm/truncate.c:329
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425
 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:279
 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+0xb8/0x13c fs/super.c:335
 deactivate_super+0xf8/0x118 fs/super.c:366
 cleanup_mnt+0x3a4/0x458 fs/namespace.c:1139
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1146
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 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+0xf0/0x1e0 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.0  pfn:1104d8
page:0000000034234782 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x1104d8
flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002006 fffffc0003214c48 ffff80001f1975c0 0000000000000000
raw: 0000000000000004 ffff0000d66f7aa8 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 0 PID: 4272 Comm: syz-executor.0 Tainted: G    B             5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c 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+0xf8/0x160 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+0x744/0xaa0 mm/page_alloc.c:3317
 free_unref_page_list+0xdc/0x754 mm/page_alloc.c:3433
 release_pages+0x13c8/0x16e0 mm/swap.c:963
 __pagevec_release+0x84/0xf8 mm/swap.c:983
 pagevec_release include/linux/pagevec.h:81 [inline]
 truncate_inode_pages_range+0x29c/0x9b8 mm/truncate.c:329
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425
 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:279
 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+0xb8/0x13c fs/super.c:335
 deactivate_super+0xf8/0x118 fs/super.c:366
 cleanup_mnt+0x3a4/0x458 fs/namespace.c:1139
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1146
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 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+0xf0/0x1e0 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.0  pfn:105ed1
page:00000000bbc6d514 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x105ed1
flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002006 fffffc00036bcb88 ffff80001f1975c0 0000000000000000
raw: 0000000000000004 ffff0000d277b0f8 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 0 PID: 4272 Comm: syz-executor.0 Tainted: G    B             5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c 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+0xf8/0x160 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+0x744/0xaa0 mm/page_alloc.c:3317
 free_unref_page_list+0xdc/0x754 mm/page_alloc.c:3433
 release_pages+0x13c8/0x16e0 mm/swap.c:963
 __pagevec_release+0x84/0xf8 mm/swap.c:983
 pagevec_release include/linux/pagevec.h:81 [inline]
 truncate_inode_pages_range+0x29c/0x9b8 mm/truncate.c:329
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425
 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:279
 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+0xb8/0x13c fs/super.c:335
 deactivate_super+0xf8/0x118 fs/super.c:366
 cleanup_mnt+0x3a4/0x458 fs/namespace.c:1139
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1146
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 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+0xf0/0x1e0 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.0  pfn:10add0
page:00000000c97ba325 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10add0
flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002006 fffffc000309eb08 ffff80001f1975c0 0000000000000000
raw: 0000000000000004 ffff0000d66f7d90 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 0 PID: 4272 Comm: syz-executor.0 Tainted: G    B             5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c 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+0xf8/0x160 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+0x744/0xaa0 mm/page_alloc.c:3317
 free_unref_page_list+0xdc/0x754 mm/page_alloc.c:3433
 release_pages+0x13c8/0x16e0 mm/swap.c:963
 __pagevec_release+0x84/0xf8 mm/swap.c:983
 pagevec_release include/linux/pagevec.h:81 [inline]
 truncate_inode_pages_range+0x29c/0x9b8 mm/truncate.c:329
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425
 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:279
 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+0xb8/0x13c fs/super.c:335
 deactivate_super+0xf8/0x118 fs/super.c:366
 cleanup_mnt+0x3a4/0x458 fs/namespace.c:1139
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1146
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 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+0xf0/0x1e0 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.0  pfn:109153
page:00000000b2639337 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x109153
flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002006 fffffc00034982c8 ffff80001f1975c0 0000000000000000
raw: 0000000000000004 ffff0000dd87f8b8 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 0 PID: 4272 Comm: syz-executor.0 Tainted: G    B             5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c 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+0xf8/0x160 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+0x744/0xaa0 mm/page_alloc.c:3317
 free_unref_page_list+0xdc/0x754 mm/page_alloc.c:3433
 release_pages+0x13c8/0x16e0 mm/swap.c:963
 __pagevec_release+0x84/0xf8 mm/swap.c:983
 pagevec_release include/linux/pagevec.h:81 [inline]
 truncate_inode_pages_range+0x29c/0x9b8 mm/truncate.c:329
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425
 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:279
 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+0xb8/0x13c fs/super.c:335
 deactivate_super+0xf8/0x118 fs/super.c:366
 cleanup_mnt+0x3a4/0x458 fs/namespace.c:1139
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1146
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 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+0xf0/0x1e0 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.0  pfn:108440
page:00000000af258811 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x108440
flags: 0x5ffc00000002004(uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002004 fffffc000335b1c8 ffff80001f1975c0 0000000000000000
raw: 0000000000000004 ffff0000c7e3c3e0 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 1 PID: 4272 Comm: syz-executor.0 Tainted: G    B             5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c 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+0xf8/0x160 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+0x744/0xaa0 mm/page_alloc.c:3317
 free_unref_page_list+0xdc/0x754 mm/page_alloc.c:3433
 release_pages+0x13c8/0x16e0 mm/swap.c:963
 __pagevec_release+0x84/0xf8 mm/swap.c:983
 pagevec_release include/linux/pagevec.h:81 [inline]
 truncate_inode_pages_range+0x29c/0x9b8 mm/truncate.c:329
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425
 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:279
 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+0xb8/0x13c fs/super.c:335
 deactivate_super+0xf8/0x118 fs/super.c:366
 cleanup_mnt+0x3a4/0x458 fs/namespace.c:1139
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1146
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 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+0xf0/0x1e0 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.0  pfn:112789
page:000000000547f19b refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x112789
flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002006 fffffc000308fa08 ffff80001f1975c0 0000000000000000
raw: 0000000000000004 ffff0000c7e3ce88 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 1 PID: 4272 Comm: syz-executor.0 Tainted: G    B             5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c 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+0xf8/0x160 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+0x744/0xaa0 mm/page_alloc.c:3317
 free_unref_page_list+0xdc/0x754 mm/page_alloc.c:3433
 release_pages+0x13c8/0x16e0 mm/swap.c:963
 __pagevec_release+0x84/0xf8 mm/swap.c:983
 pagevec_release include/linux/pagevec.h:81 [inline]
 truncate_inode_pages_range+0x29c/0x9b8 mm/truncate.c:329
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425
 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:279
 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+0xb8/0x13c fs/super.c:335
 deactivate_super+0xf8/0x118 fs/super.c:366
 cleanup_mnt+0x3a4/0x458 fs/namespace.c:1139
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1146
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 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+0xf0/0x1e0 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.0  pfn:111ddf
page:0000000001944b58 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x111ddf
flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002006 fffffc0003216f48 ffff80001f1975c0 0000000000000000
raw: 0000000000000004 ffff0000cf38f3e0 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 0 PID: 4272 Comm: syz-executor.0 Tainted: G    B             5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c 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+0xf8/0x160 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+0x744/0xaa0 mm/page_alloc.c:3317
 free_unref_page_list+0xdc/0x754 mm/page_alloc.c:3433
 release_pages+0x13c8/0x16e0 mm/swap.c:963
 __pagevec_release+0x84/0xf8 mm/swap.c:983
 pagevec_release include/linux/pagevec.h:81 [inline]
 truncate_inode_pages_range+0x29c/0x9b8 mm/truncate.c:329
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425
 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:279
 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+0xb8/0x13c fs/super.c:335
 deactivate_super+0xf8/0x118 fs/super.c:366
 cleanup_mnt+0x3a4/0x458 fs/namespace.c:1139
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1146
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 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+0xf0/0x1e0 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.0  pfn:114d81
page:000000008ba3c0c1 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x114d81
flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002006 fffffc0003347308 ffff80001f1975c0 0000000000000000
raw: 0000000000000004 ffff0000cf38fe88 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 0 PID: 4272 Comm: syz-executor.0 Tainted: G    B             5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c 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+0xf8/0x160 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+0x744/0xaa0 mm/page_alloc.c:3317
 free_unref_page_list+0xdc/0x754 mm/page_alloc.c:3433
 release_pages+0x13c8/0x16e0 mm/swap.c:963
 __pagevec_release+0x84/0xf8 mm/swap.c:983
 pagevec_release include/linux/pagevec.h:81 [inline]
 truncate_inode_pages_range+0x29c/0x9b8 mm/truncate.c:329
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425
 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:279
 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+0xb8/0x13c fs/super.c:335
 deactivate_super+0xf8/0x118 fs/super.c:366
 cleanup_mnt+0x3a4/0x458 fs/namespace.c:1139
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1146
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 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+0xf0/0x1e0 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.0  pfn:108293
page:00000000eb84890b refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x108293
flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002006 fffffc000326da88 ffff80001f1975c0 0000000000000000
raw: 0000000000000004 ffff0000cfa019b0 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 1 PID: 4272 Comm: syz-executor.0 Tainted: G    B             5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c 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+0xf8/0x160 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+0x744/0xaa0 mm/page_alloc.c:3317
 free_unref_page_list+0xdc/0x754 mm/page_alloc.c:3433
 release_pages+0x13c8/0x16e0 mm/swap.c:963
 __pagevec_release+0x84/0xf8 mm/swap.c:983
 pagevec_release include/linux/pagevec.h:81 [inline]
 truncate_inode_pages_range+0x29c/0x9b8 mm/truncate.c:329
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425
 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:279
 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+0xb8/0x13c fs/super.c:335
 deactivate_super+0xf8/0x118 fs/super.c:366
 cleanup_mnt+0x3a4/0x458 fs/namespace.c:1139
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1146
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 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+0xf0/0x1e0 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.0  pfn:108280
page:00000000140be6a0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x108280
flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002006 fffffc00036d44c8 ffff80001f1975c0 0000000000000000
raw: 0000000000000004 ffff0000c95f04d8 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 0 PID: 4272 Comm: syz-executor.0 Tainted: G    B             5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c 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+0xf8/0x160 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+0x744/0xaa0 mm/page_alloc.c:3317
 free_unref_page_list+0xdc/0x754 mm/page_alloc.c:3433
 release_pages+0x13c8/0x16e0 mm/swap.c:963
 __pagevec_release+0x84/0xf8 mm/swap.c:983
 pagevec_release include/linux/pagevec.h:81 [inline]
 truncate_inode_pages_range+0x29c/0x9b8 mm/truncate.c:329
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425
 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:279
 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+0xb8/0x13c fs/super.c:335
 deactivate_super+0xf8/0x118 fs/super.c:366
 cleanup_mnt+0x3a4/0x458 fs/namespace.c:1139
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1146
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 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+0xf0/0x1e0 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.0  pfn:109403
page:0000000071d117ad refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x109403
flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002006 fffffc00035d6d08 ffff80001f1975c0 0000000000000000
raw: 0000000000000004 ffff0000ce119000 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 1 PID: 4272 Comm: syz-executor.0 Tainted: G    B             5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c 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+0xf8/0x160 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+0x744/0xaa0 mm/page_alloc.c:3317
 free_unref_page_list+0xdc/0x754 mm/page_alloc.c:3433
 release_pages+0x13c8/0x16e0 mm/swap.c:963
 __pagevec_release+0x84/0xf8 mm/swap.c:983
 pagevec_release include/linux/pagevec.h:81 [inline]
 truncate_inode_pages_range+0x29c/0x9b8 mm/truncate.c:329
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425
 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:279
 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+0xb8/0x13c fs/super.c:335
 deactivate_super+0xf8/0x118 fs/super.c:366
 cleanup_mnt+0x3a4/0x458 fs/namespace.c:1139
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1146
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 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+0xf0/0x1e0 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.0  pfn:10b103
page:00000000ecb60ef1 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10b103
flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002006 fffffc00035512c8 ffff80001f1975c0 0000000000000000
raw: 0000000000000004 ffff0000cbd0b9b0 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 1 PID: 4272 Comm: syz-executor.0 Tainted: G    B             5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c 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+0xf8/0x160 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+0x744/0xaa0 mm/page_alloc.c:3317
 free_unref_page_list+0xdc/0x754 mm/page_alloc.c:3433
 release_pages+0x13c8/0x16e0 mm/swap.c:963
 __pagevec_release+0x84/0xf8 mm/swap.c:983
 pagevec_release include/linux/pagevec.h:81 [inline]
 truncate_inode_pages_range+0x29c/0x9b8 mm/truncate.c:329
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425
 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:279
 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+0xb8/0x13c fs/super.c:335
 deactivate_super+0xf8/0x118 fs/super.c:366
 cleanup_mnt+0x3a4/0x458 fs/namespace.c:1139
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1146
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 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+0xf0/0x1e0 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.0  pfn:10aecb
page:000000005e159f82 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10aecb
flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002006 fffffc00032cb7c8 ffff80001f1975c0 0000000000000000
raw: 0000000000000004 ffff0000ce119aa8 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 0 PID: 4272 Comm: syz-executor.0 Tainted: G    B             5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c 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+0xf8/0x160 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+0x744/0xaa0 mm/page_alloc.c:3317
 free_unref_page_list+0xdc/0x754 mm/page_alloc.c:3433
 release_pages+0x13c8/0x16e0 mm/swap.c:963
 __pagevec_release+0x84/0xf8 mm/swap.c:983
 pagevec_release include/linux/pagevec.h:81 [inline]
 truncate_inode_pages_range+0x29c/0x9b8 mm/truncate.c:329
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425
 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:279
 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+0xb8/0x13c fs/super.c:335
 deactivate_super+0xf8/0x118 fs/super.c:366
 cleanup_mnt+0x3a4/0x458 fs/namespace.c:1139
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1146
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 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+0xf0/0x1e0 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.0  pfn:10840d
page:00000000ea5fe58b refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10840d
flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002006 fffffc00036ea1c8 ffff80001f1975c0 0000000000000000
raw: 0000000000000004 ffff0000cbd0bc98 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 1 PID: 4272 Comm: syz-executor.0 Tainted: G    B             5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c 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+0xf8/0x160 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+0x744/0xaa0 mm/page_alloc.c:3317
 free_unref_page_list+0xdc/0x754 mm/page_alloc.c:3433
 release_pages+0x13c8/0x16e0 mm/swap.c:963
 __pagevec_release+0x84/0xf8 mm/swap.c:983
 pagevec_release include/linux/pagevec.h:81 [inline]
 truncate_inode_pages_range+0x29c/0x9b8 mm/truncate.c:329
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425
 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:279
 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+0xb8/0x13c fs/super.c:335
 deactivate_super+0xf8/0x118 fs/super.c:366
 cleanup_mnt+0x3a4/0x458 fs/namespace.c:1139
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1146
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 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+0xf0/0x1e0 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.0  pfn:11a1dd
page:0000000010ba9b7d refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x11a1dd
flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002006 fffffc0003531ac8 ffff80001f1975c0 0000000000000000
raw: 0000000000000004 ffff0000da38b7c0 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 1 PID: 4272 Comm: syz-executor.0 Tainted: G    B             5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c 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+0xf8/0x160 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+0x744/0xaa0 mm/page_alloc.c:3317
 free_unref_page_list+0xdc/0x754 mm/page_alloc.c:3433
 release_pages+0x13c8/0x16e0 mm/swap.c:963
 __pagevec_release+0x84/0xf8 mm/swap.c:983
 pagevec_release include/linux/pagevec.h:81 [inline]
 truncate_inode_pages_range+0x29c/0x9b8 mm/truncate.c:329
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425
 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:279
 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+0xb8/0x13c fs/super.c:335
 deactivate_super+0xf8/0x118 fs/super.c:366
 cleanup_mnt+0x3a4/0x458 fs/namespace.c:1139
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1146
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 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+0xf0/0x1e0 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.0  pfn:11bcf4
page:000000005c2e9553 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x11bcf4
flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002006 fffffc000353fa88 ffff80001f1975c0 0000000000000000
raw: 0000000000000004 ffff0000d5067d90 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 0 PID: 4272 Comm: syz-executor.0 Tainted: G    B             5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c 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+0xf8/0x160 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+0x744/0xaa0 mm/page_alloc.c:3317
 free_unref_page_list+0xdc/0x754 mm/page_alloc.c:3433
 release_pages+0x13c8/0x16e0 mm/swap.c:963
 __pagevec_release+0x84/0xf8 mm/swap.c:983
 pagevec_release include/linux/pagevec.h:81 [inline]
 truncate_inode_pages_range+0x29c/0x9b8 mm/truncate.c:329
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425
 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:279
 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+0xb8/0x13c fs/super.c:335
 deactivate_super+0xf8/0x118 fs/super.c:366
 cleanup_mnt+0x3a4/0x458 fs/namespace.c:1139
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1146
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 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+0xf0/0x1e0 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.0  pfn:114fef
page:00000000f0cf2ae5 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x114fef
flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002006 fffffc00033ce008 ffff80001f1975c0 0000000000000000
raw: 0000000000000004 ffff0000d62062e8 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 0 PID: 4272 Comm: syz-executor.0 Tainted: G    B             5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c 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+0xf8/0x160 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+0x744/0xaa0 mm/page_alloc.c:3317
 free_unref_page_list+0xdc/0x754 mm/page_alloc.c:3433
 release_pages+0x13c8/0x16e0 mm/swap.c:963
 __pagevec_release+0x84/0xf8 mm/swap.c:983
 pagevec_release include/linux/pagevec.h:81 [inline]
 truncate_inode_pages_range+0x29c/0x9b8 mm/truncate.c:329
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425
 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:279
 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+0xb8/0x13c fs/super.c:335
 deactivate_super+0xf8/0x118 fs/super.c:366
 cleanup_mnt+0x3a4/0x458 fs/namespace.c:1139
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1146
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 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+0xf0/0x1e0 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.0  pfn:1161b4
page:0000000014d996d8 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x1161b4
flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002006 fffffc0003572588 ffff80001f1975c0 0000000000000000
raw: 0000000000000004 ffff0000d6206d90 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 1 PID: 4272 Comm: syz-executor.0 Tainted: G    B             5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c 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+0xf8/0x160 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+0x744/0xaa0 mm/page_alloc.c:3317
 free_unref_page_list+0xdc/0x754 mm/page_alloc.c:3433
 release_pages+0x13c8/0x16e0 mm/swap.c:963
 __pagevec_release+0x84/0xf8 mm/swap.c:983
 pagevec_release include/linux/pagevec.h:81 [inline]
 truncate_inode_pages_range+0x29c/0x9b8 mm/truncate.c:329
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425
 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:279
 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+0xb8/0x13c fs/super.c:335
 deactivate_super+0xf8/0x118 fs/super.c:366
 cleanup_mnt+0x3a4/0x458 fs/namespace.c:1139
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1146
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 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+0xf0/0x1e0 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.0  pfn:109106
page:00000000ca8f2053 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x109106
flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002006 fffffc0003399b08 ffff80001f1975c0 0000000000000000
raw: 0000000000000004 ffff0000cdb198b8 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 0 PID: 4272 Comm: syz-executor.0 Tainted: G    B             5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c 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+0xf8/0x160 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+0x744/0xaa0 mm/page_alloc.c:3317
 free_unref_page_list+0xdc/0x754 mm/page_alloc.c:3433
 release_pages+0x13c8/0x16e0 mm/swap.c:963
 __pagevec_release+0x84/0xf8 mm/swap.c:983
 pagevec_release include/linux/pagevec.h:81 [inline]
 truncate_inode_pages_range+0x29c/0x9b8 mm/truncate.c:329
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425
 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:279
 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+0xb8/0x13c fs/super.c:335
 deactivate_super+0xf8/0x118 fs/super.c:366
 cleanup_mnt+0x3a4/0x458 fs/namespace.c:1139
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1146
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 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+0xf0/0x1e0 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.0  pfn:118efa
page:000000006002ecf9 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x118efa
flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002006 fffffc000363ba48 ffff80001f1975c0 0000000000000000
raw: 0000000000000004 ffff0000ce8103e0 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 1 PID: 4272 Comm: syz-executor.0 Tainted: G    B             5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c 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+0xf8/0x160 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+0x744/0xaa0 mm/page_alloc.c:3317
 free_unref_page_list+0xdc/0x754 mm/page_alloc.c:3433
 release_pages+0x13c8/0x16e0 mm/swap.c:963
 __pagevec_release+0x84/0xf8 mm/swap.c:983
 pagevec_release include/linux/pagevec.h:81 [inline]
 truncate_inode_pages_range+0x29c/0x9b8 mm/truncate.c:329
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:425
 dbUnmount+0xf4/0x168 fs/jfs/jfs_dmap.c:279
 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+0xb8/0x13c fs/super.c:335
 deactivate_super+0xf8/0x118 fs/super.c:366
 cleanup_mnt+0x3a4/0x458 fs/namespace.c:1139
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1146
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 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+0xf0/0x1e0 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