BUG: spinlock bad magic on CPU#0, jfsCommit/102
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BUG: KASAN: slab-out-of-bounds in string_nocheck lib/vsprintf.c:646 [inline]
BUG: KASAN: slab-out-of-bounds in string+0x218/0x2b0 lib/vsprintf.c:728
Read of size 1 at addr ffff88804583c9f0 by task jfsCommit/102

CPU: 0 UID: 0 PID: 102 Comm: jfsCommit Not tainted 6.11.0-syzkaller-05442-g932d2d1fcb2b #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:93 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119
 print_address_description mm/kasan/report.c:377 [inline]
 print_report+0x169/0x550 mm/kasan/report.c:488
 kasan_report+0x143/0x180 mm/kasan/report.c:601
 string_nocheck lib/vsprintf.c:646 [inline]
 string+0x218/0x2b0 lib/vsprintf.c:728
 vsnprintf+0x1101/0x1da0 lib/vsprintf.c:2824
 vprintk_store+0x480/0x1160 kernel/printk/printk.c:2260
 vprintk_emit+0x271/0xa10 kernel/printk/printk.c:2383
 _printk+0xd5/0x120 kernel/printk/printk.c:2432
 spin_dump kernel/locking/spinlock_debug.c:64 [inline]
 spin_bug+0x13b/0x1d0 kernel/locking/spinlock_debug.c:78
 debug_spin_lock_before kernel/locking/spinlock_debug.c:86 [inline]
 do_raw_spin_lock+0x209/0x370 kernel/locking/spinlock_debug.c:115
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:111 [inline]
 _raw_spin_lock_irqsave+0xe1/0x120 kernel/locking/spinlock.c:162
 __wake_up_common_lock+0x25/0x1e0 kernel/sched/wait.c:105
 unlock_metapage fs/jfs/jfs_metapage.c:39 [inline]
 release_metapage+0xb2/0x960 fs/jfs/jfs_metapage.c:763
 xtTruncate+0x1006/0x3270
 jfs_free_zero_link+0x46e/0x6e0 fs/jfs/namei.c:759
 jfs_evict_inode+0x35f/0x440 fs/jfs/inode.c:153
 evict+0x4e8/0x9b0 fs/inode.c:731
 txUpdateMap+0x931/0xb10 fs/jfs/jfs_txnmgr.c:2367
 txLazyCommit fs/jfs/jfs_txnmgr.c:2664 [inline]
 jfs_lazycommit+0x49a/0xb80 fs/jfs/jfs_txnmgr.c:2733
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

The buggy address belongs to the object at ffff88804583c9c0
 which belongs to the cache jfs_ip of size 2232
The buggy address is located 48 bytes inside of
 allocated 2232-byte region [ffff88804583c9c0, ffff88804583d278)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x45838
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0x4fff00000000040(head|node=1|zone=1|lastcpupid=0x7ff)
page_type: 0xfdffffff(slab)
raw: 04fff00000000040 ffff88801eee0280 dead000000000122 0000000000000000
raw: 0000000000000000 00000000800d000d 00000001fdffffff 0000000000000000
head: 04fff00000000040 ffff88801eee0280 dead000000000122 0000000000000000
head: 0000000000000000 00000000800d000d 00000001fdffffff 0000000000000000
head: 04fff00000000003 ffffea0001160e01 ffffffffffffffff 0000000000000000
head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Reclaimable, gfp_mask 0xd2050(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_RECLAIMABLE), pid 5096, tgid 5096 (syz-executor181), ts 70286805137, free_ts 0
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1500
 prep_new_page mm/page_alloc.c:1508 [inline]
 get_page_from_freelist+0x2e4c/0x2f10 mm/page_alloc.c:3446
 __alloc_pages_noprof+0x256/0x6c0 mm/page_alloc.c:4702
 alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2263
 alloc_slab_page+0x6a/0x130 mm/slub.c:2413
 allocate_slab+0x5a/0x2f0 mm/slub.c:2579
 new_slab mm/slub.c:2632 [inline]
 ___slab_alloc+0xcd1/0x14b0 mm/slub.c:3819
 __slab_alloc+0x58/0xa0 mm/slub.c:3909
 __slab_alloc_node mm/slub.c:3962 [inline]
 slab_alloc_node mm/slub.c:4123 [inline]
 kmem_cache_alloc_lru_noprof+0x1c5/0x2b0 mm/slub.c:4154
 jfs_alloc_inode+0x28/0x70 fs/jfs/super.c:105
 alloc_inode fs/inode.c:263 [inline]
 new_inode_pseudo fs/inode.c:1110 [inline]
 new_inode+0x6e/0x310 fs/inode.c:1129
 jfs_fill_super+0x408/0xc50 fs/jfs/super.c:544
 mount_bdev+0x20a/0x2d0 fs/super.c:1679
 legacy_get_tree+0xee/0x190 fs/fs_context.c:662
 vfs_get_tree+0x90/0x2b0 fs/super.c:1800
 do_new_mount+0x2be/0xb40 fs/namespace.c:3507
page_owner free stack trace missing

Memory state around the buggy address:
 ffff88804583c880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88804583c900: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
>ffff88804583c980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                                                             ^
 ffff88804583ca00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88804583ca80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
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