syzbot

ERROR: (device loop0): txAbort: 
======================================================
WARNING: the mand mount option is being deprecated and
         will be removed in v5.15!
======================================================
BUG: Bad page state in process syz-executor378  pfn:985c5
page:ffffea0002617140 count:0 mapcount:0 mapping:          (null) index:0x2f
flags: 0xfff0000000100c(referenced|uptodate|private)
raw: 00fff0000000100c 0000000000000000 000000000000002f 00000000ffffffff
raw: ffffea00027fa9a0 ffffea000295a460 ffff88809adf83c0 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
bad because of flags: 0x1000(private)
Modules linked in:
CPU: 0 PID: 7978 Comm: syz-executor378 Not tainted 4.14.295-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 lib/dump_stack.c:58
 bad_page.cold+0xdb/0x100 mm/page_alloc.c:576
 free_hot_cold_page_list+0x93/0x300 mm/page_alloc.c:2663
 release_pages+0x828/0xbf0 mm/swap.c:820
 __pagevec_release+0x84/0xe0 mm/swap.c:837
 pagevec_release include/linux/pagevec.h:78 [inline]
 truncate_inode_pages_range+0x5ce/0x13e0 mm/truncate.c:320
 jfs_remount+0x41f/0x5a0 fs/jfs/super.c:485
 do_remount_sb+0x150/0x530 fs/super.c:868
 do_remount fs/namespace.c:2393 [inline]
 do_mount+0x15f3/0x2a30 fs/namespace.c:2896
 SYSC_mount fs/namespace.c:3121 [inline]
 SyS_mount+0xa8/0x120 fs/namespace.c:3098
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7fd8bb1f7e09
RSP: 002b:00007ffdd8e7e9f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd8bb1f7e09
RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007fd8bb1b7670 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000060 R11: 0000000000000246 R12: 00000000f8008000
R13: 0000000000000000 R14: 00080000000000fc R15: 0000000000000000
BUG: Bad page state in process syz-executor378  pfn:9fea6
page:ffffea00027fa980 count:0 mapcount:0 mapping:          (null) index:0x2e
flags: 0xfff0000000100c(referenced|uptodate|private)
raw: 00fff0000000100c 0000000000000000 000000000000002e 00000000ffffffff
raw: ffffea00028c36e0 ffffea0002617160 ffff88809adf84b0 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
bad because of flags: 0x1000(private)
Modules linked in:
CPU: 1 PID: 7978 Comm: syz-executor378 Tainted: G    B           4.14.295-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 lib/dump_stack.c:58
 bad_page.cold+0xdb/0x100 mm/page_alloc.c:576
 free_hot_cold_page_list+0x93/0x300 mm/page_alloc.c:2663
 release_pages+0x828/0xbf0 mm/swap.c:820
 __pagevec_release+0x84/0xe0 mm/swap.c:837
 pagevec_release include/linux/pagevec.h:78 [inline]
 truncate_inode_pages_range+0x5ce/0x13e0 mm/truncate.c:320
 jfs_remount+0x41f/0x5a0 fs/jfs/super.c:485
 do_remount_sb+0x150/0x530 fs/super.c:868
 do_remount fs/namespace.c:2393 [inline]
 do_mount+0x15f3/0x2a30 fs/namespace.c:2896
 SYSC_mount fs/namespace.c:3121 [inline]
 SyS_mount+0xa8/0x120 fs/namespace.c:3098
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7fd8bb1f7e09
RSP: 002b:00007ffdd8e7e9f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd8bb1f7e09
RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007fd8bb1b7670 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000060 R11: 0000000000000246 R12: 00000000f8008000
R13: 0000000000000000 R14: 00080000000000fc R15: 0000000000000000
BUG: Bad page state in process syz-executor378  pfn:a30db
page:ffffea00028c36c0 count:0 mapcount:0 mapping:          (null) index:0x2d
flags: 0xfff0000000100c(referenced|uptodate|private)
raw: 00fff0000000100c 0000000000000000 000000000000002d 00000000ffffffff
raw: ffffea0002b948e0 ffffea00027fa9a0 ffff88809adf85a0 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
bad because of flags: 0x1000(private)
Modules linked in:
CPU: 1 PID: 7978 Comm: syz-executor378 Tainted: G    B           4.14.295-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 lib/dump_stack.c:58
 bad_page.cold+0xdb/0x100 mm/page_alloc.c:576
 free_hot_cold_page_list+0x93/0x300 mm/page_alloc.c:2663
 release_pages+0x828/0xbf0 mm/swap.c:820
 __pagevec_release+0x84/0xe0 mm/swap.c:837
 pagevec_release include/linux/pagevec.h:78 [inline]
 truncate_inode_pages_range+0x5ce/0x13e0 mm/truncate.c:320
 jfs_remount+0x41f/0x5a0 fs/jfs/super.c:485
 do_remount_sb+0x150/0x530 fs/super.c:868
 do_remount fs/namespace.c:2393 [inline]
 do_mount+0x15f3/0x2a30 fs/namespace.c:2896
 SYSC_mount fs/namespace.c:3121 [inline]
 SyS_mount+0xa8/0x120 fs/namespace.c:3098
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7fd8bb1f7e09
RSP: 002b:00007ffdd8e7e9f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd8bb1f7e09
RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007fd8bb1b7670 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000060 R11: 0000000000000246 R12: 00000000f8008000
R13: 0000000000000000 R14: 00080000000000fc R15: 00000000