loop0: detected capacity change from 0 to 32768
lbmIODone: I/O error in JFS log
==================================================================
BUG: KASAN: slab-use-after-free in lbmLogShutdown fs/jfs/jfs_logmgr.c:1863 [inline]
BUG: KASAN: slab-use-after-free in lmLogInit+0xd17/0x1c90 fs/jfs/jfs_logmgr.c:1416
Read of size 8 at addr ffff88801f46f818 by task syz.0.35/6110

CPU: 0 UID: 0 PID: 6110 Comm: syz.0.35 Not tainted 6.14.0-rc5-syzkaller-g00a7d39898c8 #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:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:408 [inline]
 print_report+0x16e/0x5b0 mm/kasan/report.c:521
 kasan_report+0x143/0x180 mm/kasan/report.c:634
 lbmLogShutdown fs/jfs/jfs_logmgr.c:1863 [inline]
 lmLogInit+0xd17/0x1c90 fs/jfs/jfs_logmgr.c:1416
 open_inline_log fs/jfs/jfs_logmgr.c:1175 [inline]
 lmLogOpen+0x55e/0x1040 fs/jfs/jfs_logmgr.c:1069
 jfs_mount_rw+0xf1/0x6a0 fs/jfs/jfs_mount.c:257
 jfs_reconfigure+0x632/0x9d0 fs/jfs/super.c:409
 reconfigure_super+0x43a/0x870 fs/super.c:1083
 do_remount fs/namespace.c:3100 [inline]
 path_mount+0xc22/0xfa0 fs/namespace.c:3879
 do_mount fs/namespace.c:3900 [inline]
 __do_sys_mount fs/namespace.c:4111 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4088
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f781dd8cde9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f781cffe038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f781dfa5fa0 RCX: 00007f781dd8cde9
RDX: 0000000000000000 RSI: 0000400000000000 RDI: 0000000000000000
RBP: 00007f781de0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000001c0030 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f781dfa5fa0 R15: 00007fff127c4d18
 </TASK>

Allocated by task 6110:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:260 [inline]
 __kmalloc_cache_noprof+0x243/0x390 mm/slub.c:4325
 kmalloc_noprof include/linux/slab.h:901 [inline]
 lbmLogInit fs/jfs/jfs_logmgr.c:1822 [inline]
 lmLogInit+0x3b4/0x1c90 fs/jfs/jfs_logmgr.c:1270
 open_inline_log fs/jfs/jfs_logmgr.c:1175 [inline]
 lmLogOpen+0x55e/0x1040 fs/jfs/jfs_logmgr.c:1069
 jfs_mount_rw+0xf1/0x6a0 fs/jfs/jfs_mount.c:257
 jfs_reconfigure+0x632/0x9d0 fs/jfs/super.c:409
 reconfigure_super+0x43a/0x870 fs/super.c:1083
 do_remount fs/namespace.c:3100 [inline]
 path_mount+0xc22/0xfa0 fs/namespace.c:3879
 do_mount fs/namespace.c:3900 [inline]
 __do_sys_mount fs/namespace.c:4111 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4088
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 6110:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:576
 poison_slab_object mm/kasan/common.c:247 [inline]
 __kasan_slab_free+0x59/0x70 mm/kasan/common.c:264
 kasan_slab_free include/linux/kasan.h:233 [inline]
 slab_free_hook mm/slub.c:2353 [inline]
 slab_free mm/slub.c:4609 [inline]
 kfree+0x196/0x430 mm/slub.c:4757
 lbmLogShutdown fs/jfs/jfs_logmgr.c:1865 [inline]
 lmLogInit+0xd45/0x1c90 fs/jfs/jfs_logmgr.c:1416
 open_inline_log fs/jfs/jfs_logmgr.c:1175 [inline]
 lmLogOpen+0x55e/0x1040 fs/jfs/jfs_logmgr.c:1069
 jfs_mount_rw+0xf1/0x6a0 fs/jfs/jfs_mount.c:257
 jfs_reconfigure+0x632/0x9d0 fs/jfs/super.c:409
 reconfigure_super+0x43a/0x870 fs/super.c:1083
 do_remount fs/namespace.c:3100 [inline]
 path_mount+0xc22/0xfa0 fs/namespace.c:3879
 do_mount fs/namespace.c:3900 [inline]
 __do_sys_mount fs/namespace.c:4111 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4088
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff88801f46f800
 which belongs to the cache kmalloc-192 of size 192
The buggy address is located 24 bytes inside of
 freed 192-byte region [ffff88801f46f800, ffff88801f46f8c0)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1f46f
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000000 ffff88801b0413c0 dead000000000100 dead000000000122
raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x252800(GFP_NOWAIT|__GFP_NORETRY|__GFP_COMP|__GFP_THISNODE), pid 5848, tgid 5848 (syz-executor), ts 165454550798, free_ts 164816311278
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f4/0x240 mm/page_alloc.c:1551
 prep_new_page mm/page_alloc.c:1559 [inline]
 get_page_from_freelist+0x365c/0x37a0 mm/page_alloc.c:3477
 __alloc_pages_slowpath+0x43e/0x10b0 mm/page_alloc.c:4288
 __alloc_frozen_pages_noprof+0x49b/0x710 mm/page_alloc.c:4752
 alloc_slab_page mm/slub.c:2425 [inline]
 allocate_slab+0x66/0x3a0 mm/slub.c:2587
 new_slab mm/slub.c:2640 [inline]
 ___slab_alloc+0xc27/0x14a0 mm/slub.c:3826
 __slab_alloc+0x58/0xa0 mm/slub.c:3916
 __slab_alloc_node mm/slub.c:3991 [inline]
 slab_alloc_node mm/slub.c:4152 [inline]
 __do_kmalloc_node mm/slub.c:4293 [inline]
 __kmalloc_node_noprof+0x2ee/0x4d0 mm/slub.c:4300
 kmalloc_array_node_noprof include/linux/slab.h:1018 [inline]
 alloc_slab_obj_exts+0x3a/0xa0 mm/slub.c:1964
 __memcg_slab_post_alloc_hook+0x319/0x7e0 mm/memcontrol.c:2995
 memcg_slab_post_alloc_hook mm/slub.c:2152 [inline]
 slab_post_alloc_hook mm/slub.c:4125 [inline]
 slab_alloc_node mm/slub.c:4164 [inline]
 kmem_cache_alloc_lru_noprof+0x28e/0x390 mm/slub.c:4183
 __d_alloc+0x31/0x740 fs/dcache.c:1664
 d_alloc_pseudo+0x1f/0xb0 fs/dcache.c:1795
 alloc_path_pseudo fs/file_table.c:359 [inline]
 alloc_file_pseudo+0x141/0x320 fs/file_table.c:375
 sock_alloc_file+0xb7/0x2e0 net/socket.c:470
 sock_map_fd net/socket.c:500 [inline]
 __sys_socket+0x1dd/0x3c0 net/socket.c:1699
page last free pid 12 tgid 12 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_frozen_pages+0xe0d/0x10e0 mm/page_alloc.c:2660
 free_z3fold_page mm/z3fold.c:357 [inline]
 free_pages_work+0x1f4/0x270 mm/z3fold.c:507
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xabe/0x18e0 kernel/workqueue.c:3319
 worker_thread+0x870/0xd30 kernel/workqueue.c:3400
 kthread+0x7a9/0x920 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

Memory state around the buggy address:
 ffff88801f46f700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88801f46f780: 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88801f46f800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                            ^
 ffff88801f46f880: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
 ffff88801f46f900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================