BUG: Bad page state in process jfsCommit  pfn:116bb7
page:0000000059a88ef9 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1c pfn:0x116bb7
flags: 0x5ffc00000002005(locked|uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002005 dead000000000100 dead000000000122 0000000000000000
raw: 000000000000001c ffff0000d2e219b0 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
Modules linked in:
CPU: 1 PID: 248 Comm: jfsCommit Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
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+0x78/0x1fc mm/page_alloc.c:3396
 __put_single_page mm/swap.c:98 [inline]
 __put_page+0xf8/0x134 mm/swap.c:129
 put_page include/linux/mm.h:1247 [inline]
 _metapage_homeok+0x138/0x288 fs/jfs/jfs_metapage.h:119
 txUnlock+0x220/0xb78 fs/jfs/jfs_txnmgr.c:932
 txLazyCommit fs/jfs/jfs_txnmgr.c:2716 [inline]
 jfs_lazycommit+0x470/0x9bc fs/jfs/jfs_txnmgr.c:2766
 kthread+0x374/0x454 kernel/kthread.c:334
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:855
page:0000000059a88ef9 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1c pfn:0x116bb7
flags: 0x5ffc00000002005(locked|uptodate|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000002005 dead000000000100 dead000000000122 0000000000000000
raw: 000000000000001c ffff0000d2e219b0 00000000ffffffff 0000000000000000
page dumped because: VM_BUG_ON_PAGE(((unsigned int) page_ref_count(page) + 127u <= 127u))
------------[ cut here ]------------
kernel BUG at include/linux/mm.h:1213!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 248 Comm: jfsCommit Tainted: G    B             5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : get_page include/linux/mm.h:1213 [inline]
pc : put_metapage+0x280/0x2e4 fs/jfs/jfs_metapage.c:722
lr : get_page include/linux/mm.h:1213 [inline]
lr : put_metapage+0x280/0x2e4 fs/jfs/jfs_metapage.c:722
sp : ffff80001bfc7bc0
x29: ffff80001bfc7bc0 x28: ffff80001af0bbf8 x27: 1fffe0001a5c433b
x26: 1fffe0001a5c4348 x25: dfff800000000000 x24: 000000000000007f
x23: fffffc00035aedf4 x22: fffffc00035aedc0 x21: ffff0000d2e219d8
x20: ffff0000d2e21a40 x19: ffff0000d2e219b0 x18: 0000000000000002
x17: 0000000040000000 x16: ffff8000111bc798 x15: 0000000000000002
x14: 0000000000ff0100 x13: ffffffffffffffff x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000000000000 x9 : 0fe96514ce0bf800
x8 : 0fe96514ce0bf800 x7 : 0000000000000000 x6 : ffff80000824599c
x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff80000a723764
x2 : ffff0001a10e6d50 x1 : 0000000100000000 x0 : 0000000000000059
Call trace:
 get_page include/linux/mm.h:1213 [inline]
 put_metapage+0x280/0x2e4 fs/jfs/jfs_metapage.c:722
 txUnlock+0x398/0xb78 fs/jfs/jfs_txnmgr.c:947
 txLazyCommit fs/jfs/jfs_txnmgr.c:2716 [inline]
 jfs_lazycommit+0x470/0x9bc fs/jfs/jfs_txnmgr.c:2766
 kthread+0x374/0x454 kernel/kthread.c:334
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:855
Code: f003f541 91358021 aa1603e0 97bdcea2 (d4210000) 
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