[v5.15] KASAN: invalid-free in diUnmount

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 471e639e59d1 Linux 5.15.117
git tree: linux-5.15.y
console output: https://syzkaller.appspot.com/x/log.txt?x=171e59ef280000
kernel config: https://syzkaller.appspot.com/x/.config?x=eeb4064efec7aa39
dashboard link: https://syzkaller.appspot.com/bug?extid=5c604c1cc148275ab8a6
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
userspace arch: arm64
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1478f2ff280000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12d207c3280000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/2e7359ecba67/disk-471e639e.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/ef6d17e44bc3/vmlinux-471e639e.xz
kernel image: https://storage.googleapis.com/syzbot-assets/99b68dbd7e00/Image-471e639e.gz.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/c9aaf674faca/mount_0.gz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+5c604c...@syzkaller.appspotmail.com

el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614
el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
read_mapping_page failed!
jfs_mount_rw: diMount failed!
==================================================================
BUG: KASAN: double-free or invalid-free in slab_free mm/slub.c:3499 [inline]
BUG: KASAN: double-free or invalid-free in kfree+0x178/0x410 mm/slub.c:4559

CPU: 1 PID: 3962 Comm: syz-executor354 Not tainted 5.15.117-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
Call trace:
dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152
show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
print_address_description+0x7c/0x3f0 mm/kasan/report.c:248
kasan_report_invalid_free+0x64/0x94 mm/kasan/report.c:373
____kasan_slab_free+0x134/0x164
__kasan_slab_free+0x18/0x28 mm/kasan/common.c:374
kasan_slab_free include/linux/kasan.h:230 [inline]
slab_free_hook mm/slub.c:1705 [inline]
slab_free_freelist_hook+0x128/0x1ec mm/slub.c:1731
slab_free mm/slub.c:3499 [inline]
kfree+0x178/0x410 mm/slub.c:4559
diUnmount+0xf4/0x10c fs/jfs/jfs_imap.c:195
jfs_umount+0x110/0x338 fs/jfs/jfs_umount.c:63
jfs_put_super+0x90/0x188 fs/jfs/super.c:194
generic_shutdown_super+0x130/0x29c fs/super.c:475
kill_block_super+0x70/0xdc fs/super.c:1405
deactivate_locked_super+0xb8/0x13c fs/super.c:335
deactivate_super+0x108/0x128 fs/super.c:366
cleanup_mnt+0x3c0/0x474 fs/namespace.c:1143
__cleanup_mnt+0x20/0x30 fs/namespace.c:1150
task_work_run+0x130/0x1e4 kernel/task_work.c:164
exit_task_work include/linux/task_work.h:32 [inline]
do_exit+0x688/0x2134 kernel/exit.c:872
do_group_exit+0x110/0x268 kernel/exit.c:994
__do_sys_exit_group kernel/exit.c:1005 [inline]
__se_sys_exit_group kernel/exit.c:1003 [inline]
__wake_up_parent+0x0/0x60 kernel/exit.c:1003
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:596
el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614
el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

Allocated by task 3962:
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track mm/kasan/common.c:46 [inline]
set_alloc_info mm/kasan/common.c:434 [inline]
____kasan_kmalloc+0xbc/0xfc mm/kasan/common.c:513
__kasan_kmalloc+0x10/0x1c mm/kasan/common.c:522
kasan_kmalloc include/linux/kasan.h:264 [inline]
kmem_cache_alloc_trace+0x27c/0x47c mm/slub.c:3247
kmalloc include/linux/slab.h:591 [inline]
kzalloc include/linux/slab.h:721 [inline]
kobject_uevent_env+0x26c/0x898 lib/kobject_uevent.c:524
kobject_uevent+0x2c/0x3c lib/kobject_uevent.c:642
__kobject_del+0xd8/0x2d4 lib/kobject.c:625
kobject_cleanup lib/kobject.c:704 [inline]
kobject_release lib/kobject.c:744 [inline]
kref_put include/linux/kref.h:65 [inline]
kobject_put+0x2dc/0x438 lib/kobject.c:761
net_rx_queue_update_kobjects+0x3b4/0x42c net/core/net-sysfs.c:1124
remove_queue_kobjects net/core/net-sysfs.c:1822 [inline]
netdev_unregister_kobject+0xf0/0x204 net/core/net-sysfs.c:1976
unregister_netdevice_many+0x12c8/0x189c net/core/dev.c:11096
unregister_netdevice_queue+0x2d0/0x31c net/core/dev.c:11002
unregister_netdevice include/linux/netdevice.h:3015 [inline]
__tun_detach+0xb74/0x12b0 drivers/net/tun.c:685
tun_detach drivers/net/tun.c:701 [inline]
tun_chr_close+0x118/0x20c drivers/net/tun.c:3431
__fput+0x30c/0x7f0 fs/file_table.c:280
____fput+0x20/0x30 fs/file_table.c:308
task_work_run+0x130/0x1e4 kernel/task_work.c:164
exit_task_work include/linux/task_work.h:32 [inline]
do_exit+0x688/0x2134 kernel/exit.c:872
do_group_exit+0x110/0x268 kernel/exit.c:994
__do_sys_exit_group kernel/exit.c:1005 [inline]
__se_sys_exit_group kernel/exit.c:1003 [inline]
__wake_up_parent+0x0/0x60 kernel/exit.c:1003
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:596
el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614
el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

Freed by task 3962:
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track+0x4c/0x84 mm/kasan/common.c:46
kasan_set_free_info+0x28/0x4c mm/kasan/generic.c:360
____kasan_slab_free+0x118/0x164 mm/kasan/common.c:366
__kasan_slab_free+0x18/0x28 mm/kasan/common.c:374
kasan_slab_free include/linux/kasan.h:230 [inline]
slab_free_hook mm/slub.c:1705 [inline]
slab_free_freelist_hook+0x128/0x1ec mm/slub.c:1731
slab_free mm/slub.c:3499 [inline]
kfree+0x178/0x410 mm/slub.c:4559
kobject_uevent_env+0x354/0x898 lib/kobject_uevent.c:626
kobject_uevent+0x2c/0x3c lib/kobject_uevent.c:642
__kobject_del+0xd8/0x2d4 lib/kobject.c:625
kobject_cleanup lib/kobject.c:704 [inline]
kobject_release lib/kobject.c:744 [inline]
kref_put include/linux/kref.h:65 [inline]
kobject_put+0x2dc/0x438 lib/kobject.c:761
net_rx_queue_update_kobjects+0x3b4/0x42c net/core/net-sysfs.c:1124
remove_queue_kobjects net/core/net-sysfs.c:1822 [inline]
netdev_unregister_kobject+0xf0/0x204 net/core/net-sysfs.c:1976
unregister_netdevice_many+0x12c8/0x189c net/core/dev.c:11096
unregister_netdevice_queue+0x2d0/0x31c net/core/dev.c:11002
unregister_netdevice include/linux/netdevice.h:3015 [inline]
__tun_detach+0xb74/0x12b0 drivers/net/tun.c:685
tun_detach drivers/net/tun.c:701 [inline]
tun_chr_close+0x118/0x20c drivers/net/tun.c:3431
__fput+0x30c/0x7f0 fs/file_table.c:280
____fput+0x20/0x30 fs/file_table.c:308
task_work_run+0x130/0x1e4 kernel/task_work.c:164
exit_task_work include/linux/task_work.h:32 [inline]
do_exit+0x688/0x2134 kernel/exit.c:872
do_group_exit+0x110/0x268 kernel/exit.c:994
__do_sys_exit_group kernel/exit.c:1005 [inline]
__se_sys_exit_group kernel/exit.c:1003 [inline]
__wake_up_parent+0x0/0x60 kernel/exit.c:1003
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:596
el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614
el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

The buggy address belongs to the object at ffff0000c76a0000
which belongs to the cache kmalloc-4k of size 4096
The buggy address is located 0 bytes inside of
4096-byte region [ffff0000c76a0000, ffff0000c76a1000)
The buggy address belongs to the page:
page:000000005cf71b91 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1076a0
head:000000005cf71b91 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000010200 0000000000000000 dead000000000122 ffff0000c0002a80
raw: 0000000000000000 0000000080040004 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
ffff0000c769ff00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ffff0000c769ff80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff0000c76a0000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff0000c76a0080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff0000c76a0100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================


---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.

syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.

If the bug is already fixed, let syzbot know by replying with:
#syz fix: exact-commit-title

If you want syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.

If you want to change bug's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)

If the bug is a duplicate of another bug, reply with:
#syz dup: exact-subject-of-another-report

If you want to undo deduplication, reply with:
#syz undup