blkno = 5002c, nblocks = 1
ERROR: (device loop4): dbUpdatePMap: blocks are outside the map
ERROR: (device loop4): remounting filesystem as read-only
BUG: Bad page state in process jfsCommit  pfn:7b80b
page:ffffea0001ee02c0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1c pfn:0x7b80b
flags: 0xfff10000002047(locked|referenced|uptodate|workingset|private|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff10000002047 dead000000000100 dead000000000122 0000000000000000
raw: 000000000000001c ffff88803121eaa8 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x140c40(GFP_NOFS|__GFP_COMP|__GFP_HARDWALL), pid 4552, tgid 4551 (syz.4.66), ts 79722436302, free_ts 79022505482
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x173/0x1a0 mm/page_alloc.c:2532
 prep_new_page mm/page_alloc.c:2539 [inline]
 get_page_from_freelist+0x1a26/0x1ac0 mm/page_alloc.c:4328
 __alloc_pages+0x1df/0x4e0 mm/page_alloc.c:5606
 folio_alloc+0x1c/0x60 mm/mempolicy.c:2292
 filemap_alloc_folio+0xdb/0x460 mm/filemap.c:999
 do_read_cache_folio+0x1bb/0x760 mm/filemap.c:3591
 do_read_cache_page+0x32/0x220 mm/filemap.c:3669
 read_mapping_page include/linux/pagemap.h:791 [inline]
 __get_metapage+0x316/0xfa0 fs/jfs/jfs_metapage.c:620
 diRead+0x6f7/0xbb0 fs/jfs/jfs_imap.c:367
 jfs_iget+0x89/0x3c0 fs/jfs/inode.c:35
 jfs_fill_super+0x708/0xac0 fs/jfs/super.c:580
 mount_bdev+0x287/0x3c0 fs/super.c:1443
 legacy_get_tree+0xe6/0x180 fs/fs_context.c:632
 vfs_get_tree+0x88/0x270 fs/super.c:1573
 do_new_mount+0x24a/0xa40 fs/namespace.c:3057
 do_mount fs/namespace.c:3400 [inline]
 __do_sys_mount fs/namespace.c:3608 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3585
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1459 [inline]
 free_pcp_prepare mm/page_alloc.c:1509 [inline]
 free_unref_page_prepare+0x8b4/0x9a0 mm/page_alloc.c:3384
 free_unref_page+0x2e/0x3f0 mm/page_alloc.c:3479
 relay_destroy_buf+0x10e/0x3a0 kernel/relay.c:201
 relay_remove_buf kernel/relay.c:221 [inline]
 kref_put include/linux/kref.h:65 [inline]
 relay_close_buf kernel/relay.c:430 [inline]
 relay_close+0x3db/0x730 kernel/relay.c:766
 blk_trace_free+0x3c/0x110 kernel/trace/blktrace.c:316
 blk_trace_cleanup kernel/trace/blktrace.c:384 [inline]
 __blk_trace_remove+0x229/0x2b0 kernel/trace/blktrace.c:397
 blk_trace_ioctl+0x211/0x4c0 kernel/trace/blktrace.c:760
 blkdev_common_ioctl+0xe25/0x1cf0 block/ioctl.c:540
 blkdev_ioctl+0x2d8/0x700 block/ioctl.c:614
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
Modules linked in:
CPU: 1 PID: 108 Comm: jfsCommit Not tainted 6.1.138-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x168/0x22e lib/dump_stack.c:106
 bad_page+0x14b/0x170 mm/page_alloc.c:699
 free_page_is_bad mm/page_alloc.c:1291 [inline]
 free_pages_prepare mm/page_alloc.c:1452 [inline]
 free_pcp_prepare mm/page_alloc.c:1509 [inline]
 free_unref_page_prepare+0x42a/0x9a0 mm/page_alloc.c:3384
 free_unref_page+0x2e/0x3f0 mm/page_alloc.c:3479
 txUnlock+0x27e/0xcb0 fs/jfs/jfs_txnmgr.c:932
 txLazyCommit fs/jfs/jfs_txnmgr.c:2682 [inline]
 jfs_lazycommit+0x56c/0xa50 fs/jfs/jfs_txnmgr.c:2732
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
page:ffffea0001ee02c0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1c pfn:0x7b80b
flags: 0xfff10000002047(locked|referenced|uptodate|workingset|private|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff10000002047 dead000000000100 dead000000000122 0000000000000000
raw: 000000000000001c ffff88803121eaa8 00000000ffffffff 0000000000000000
page dumped because: VM_BUG_ON_FOLIO(((unsigned int) folio_ref_count(folio) + 127u <= 127u))
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x140c40(GFP_NOFS|__GFP_COMP|__GFP_HARDWALL), pid 4552, tgid 4551 (syz.4.66), ts 79722436302, free_ts 79022505482
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x173/0x1a0 mm/page_alloc.c:2532
 prep_new_page mm/page_alloc.c:2539 [inline]
 get_page_from_freelist+0x1a26/0x1ac0 mm/page_alloc.c:4328
 __alloc_pages+0x1df/0x4e0 mm/page_alloc.c:5606
 folio_alloc+0x1c/0x60 mm/mempolicy.c:2292
 filemap_alloc_folio+0xdb/0x460 mm/filemap.c:999
 do_read_cache_folio+0x1bb/0x760 mm/filemap.c:3591
 do_read_cache_page+0x32/0x220 mm/filemap.c:3669
 read_mapping_page include/linux/pagemap.h:791 [inline]
 __get_metapage+0x316/0xfa0 fs/jfs/jfs_metapage.c:620
 diRead+0x6f7/0xbb0 fs/jfs/jfs_imap.c:367
 jfs_iget+0x89/0x3c0 fs/jfs/inode.c:35
 jfs_fill_super+0x708/0xac0 fs/jfs/super.c:580
 mount_bdev+0x287/0x3c0 fs/super.c:1443
 legacy_get_tree+0xe6/0x180 fs/fs_context.c:632
 vfs_get_tree+0x88/0x270 fs/super.c:1573
 do_new_mount+0x24a/0xa40 fs/namespace.c:3057
 do_mount fs/namespace.c:3400 [inline]
 __do_sys_mount fs/namespace.c:3608 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3585
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1459 [inline]
 free_pcp_prepare mm/page_alloc.c:1509 [inline]
 free_unref_page_prepare+0x8b4/0x9a0 mm/page_alloc.c:3384
 free_unref_page+0x2e/0x3f0 mm/page_alloc.c:3479
 relay_destroy_buf+0x10e/0x3a0 kernel/relay.c:201
 relay_remove_buf kernel/relay.c:221 [inline]
 kref_put include/linux/kref.h:65 [inline]
 relay_close_buf kernel/relay.c:430 [inline]
 relay_close+0x3db/0x730 kernel/relay.c:766
 blk_trace_free+0x3c/0x110 kernel/trace/blktrace.c:316
 blk_trace_cleanup kernel/trace/blktrace.c:384 [inline]
 __blk_trace_remove+0x229/0x2b0 kernel/trace/blktrace.c:397
 blk_trace_ioctl+0x211/0x4c0 kernel/trace/blktrace.c:760
 blkdev_common_ioctl+0xe25/0x1cf0 block/ioctl.c:540
 blkdev_ioctl+0x2d8/0x700 block/ioctl.c:614
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
------------[ cut here ]------------
kernel BUG at include/linux/mm.h:1135!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 108 Comm: jfsCommit Tainted: G    B              6.1.138-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
RIP: 0010:folio_get include/linux/mm.h:1135 [inline]
RIP: 0010:get_page include/linux/mm.h:1141 [inline]
RIP: 0010:put_metapage+0x24f/0x340 fs/jfs/jfs_metapage.c:721
Code: 38 c1 0f 8c 32 ff ff ff 4c 89 ef e8 fb a3 e4 fe e9 25 ff ff ff e8 a1 30 93 fe 48 8b 3c 24 48 c7 c6 40 3f a6 8a e8 f1 13 cf fe <0f> 0b 4c 8b 2c 24 4c 89 ee 48 81 e6 ff 0f 00 00 31 ff e8 5a 34 93
RSP: 0018:ffffc90002ce7ce0 EFLAGS: 00010246
RAX: e65716a8a6ac5000 RBX: ffff88803121eaa8 RCX: e65716a8a6ac5000
RDX: 0000000000000000 RSI: ffffffff8abf0d80 RDI: ffffffff8abf0d40
RBP: 000000000000007f R08: dffffc0000000000 R09: fffffbfff1bfd046
R10: fffffbfff1bfd046 R11: 1ffffffff1bfd045 R12: ffff88803121ead0
R13: ffffea0001ee02f4 R14: 1ffff11006243d5a R15: 1ffff11006243d67
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f804df7d2d8 CR3: 000000007b80a000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 txUnlock+0x427/0xcb0 fs/jfs/jfs_txnmgr.c:947
 txLazyCommit fs/jfs/jfs_txnmgr.c:2682 [inline]
 jfs_lazycommit+0x56c/0xa50 fs/jfs/jfs_txnmgr.c:2732
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:folio_get include/linux/mm.h:1135 [inline]
RIP: 0010:get_page include/linux/mm.h:1141 [inline]
RIP: 0010:put_metapage+0x24f/0x340 fs/jfs/jfs_metapage.c:721
Code: 38 c1 0f 8c 32 ff ff ff 4c 89 ef e8 fb a3 e4 fe e9 25 ff ff ff e8 a1 30 93 fe 48 8b 3c 24 48 c7 c6 40 3f a6 8a e8 f1 13 cf fe <0f> 0b 4c 8b 2c 24 4c 89 ee 48 81 e6 ff 0f 00 00 31 ff e8 5a 34 93
RSP: 0018:ffffc90002ce7ce0 EFLAGS: 00010246
RAX: e65716a8a6ac5000 RBX: ffff88803121eaa8 RCX: e65716a8a6ac5000
RDX: 0000000000000000 RSI: ffffffff8abf0d80 RDI: ffffffff8abf0d40
RBP: 000000000000007f R08: dffffc0000000000 R09: fffffbfff1bfd046
R10: fffffbfff1bfd046 R11: 1ffffffff1bfd045 R12: ffff88803121ead0
R13: ffffea0001ee02f4 R14: 1ffff11006243d5a R15: 1ffff11006243d67
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f804df7d2d8 CR3: 000000002767e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400