INFO: task syz-executor.5:8064 blocked for more than 143 seconds.
Not tainted 6.7.0-rc8-syzkaller-00174-g95c8a35f1c01 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:25040 pid:8064 tgid:8062 ppid:7695 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x1961/0x4ab0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6778
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline]
__down_read_common kernel/locking/rwsem.c:1250 [inline]
__down_read kernel/locking/rwsem.c:1263 [inline]
down_read+0x703/0xa40 kernel/locking/rwsem.c:1528
__super_lock fs/super.c:58 [inline]
super_lock+0x176/0x3a0 fs/super.c:117
user_get_super+0xd5/0x180 fs/super.c:1062
quotactl_block fs/quota/quota.c:890 [inline]
__do_sys_quotactl fs/quota/quota.c:955 [inline]
__se_sys_quotactl+0x523/0xa30 fs/quota/quota.c:917
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x45/0x110 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f5527a7cd29
RSP: 002b:00007f55287fc0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3
RAX: ffffffffffffffda RBX: 00007f5527babf80 RCX: 00007f5527a7cd29
RDX: 0000000000000000 RSI: 0000000020000100 RDI: ffffffff80000902
RBP: 00007f5527ac947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f5527babf80 R15: 00007ffcc258f4c8
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8d92dae0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:301 [inline]
#0: ffffffff8d92dae0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
#0: ffffffff8d92dae0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
2 locks held by getty/4808:
#0: ffff88802b0ba0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b4/0x1e10 drivers/tty/n_tty.c:2201
2 locks held by kworker/u4:6/15495:
5 locks held by syz-executor.5/7626:
1 lock held by syz-executor.5/8064:
#0: ffff888038e0a0e0 (&type->s_umount_key#25){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888038e0a0e0 (&type->s_umount_key#25){++++}-{3:3}, at: super_lock+0x176/0x3a0 fs/super.c:117
1 lock held by syz-executor.5/8168:
#0: ffff888038e0a0e0 (&type->s_umount_key#25){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888038e0a0e0 (&type->s_umount_key#25){++++}-{3:3}, at: super_lock+0x176/0x3a0 fs/super.c:117
1 lock held by syz-executor.5/8245:
#0: ffff888038e0a0e0 (&type->s_umount_key#25){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888038e0a0e0 (&type->s_umount_key#25){++++}-{3:3}, at: super_lock+0x176/0x3a0 fs/super.c:117
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.7.0-rc8-syzkaller-00174-g95c8a35f1c01 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x310 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xfaf/0xff0 kernel/hung_task.c:379
kthread+0x2d3/0x370 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 7626 Comm: syz-executor.5 Not tainted 6.7.0-rc8-syzkaller-00174-g95c8a35f1c01 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:kasan_check_range+0x5/0x290 mm/kasan/generic.c:186
Code: 01 0f 84 47 ff ff ff 48 ff c8 48 39 d8 0f 84 3b ff ff ff 48 89 df 48 c7 c6 14 91 12 8d e8 03 09 e7 ff 90 0f 0b 66 0f 1f 00 55 <41> 57 41 56 41 54 53 b0 01 48 85 f6 0f 84 a0 01 00 00 4c 8d 04 37
RSP: 0018:ffffc900106470b0 EFLAGS: 00000246
RAX: 0000000080000000 RBX: ffffea0002154cc0 RCX: ffffffff820b0404
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffea0002154cf4
RBP: ffffc900106471f0 R08: ffff888148c87d4b R09: 1ffff11029190fa9
R10: dffffc0000000000 R11: ffffed1029190faa R12: ffff88803b4d4d98
R13: ffff88803b4d4db0 R14: ffffea0002154cf4 R15: 0000000000000041
FS: 00007f73f82646c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c001c0d000 CR3: 0000000027a2a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read include/linux/instrumented.h:68 [inline]
atomic_read include/linux/atomic/atomic-instrumented.h:32 [inline]
page_ref_count include/linux/page_ref.h:67 [inline]
put_page_testzero include/linux/mm.h:1104 [inline]
folio_put_testzero include/linux/mm.h:1110 [inline]
folio_put include/linux/mm.h:1482 [inline]
__find_get_block_slow fs/buffer.c:240 [inline]
__find_get_block+0x5d4/0x1150 fs/buffer.c:1401
flush_commit_list+0x9fb/0x1c50 fs/reiserfs/journal.c:1052
get_list_bitmap+0x160/0x320 fs/reiserfs/journal.c:321
do_journal_end+0x3df2/0x4b40 fs/reiserfs/journal.c:4358
do_journal_begin_r+0x970/0x1030
journal_begin+0x14c/0x360 fs/reiserfs/journal.c:3254
reiserfs_mkdir+0x34a/0x8f0 fs/reiserfs/namei.c:831
xattr_mkdir fs/reiserfs/xattr.c:77 [inline]
create_privroot fs/reiserfs/xattr.c:891 [inline]
reiserfs_xattr_init+0x355/0x6c0 fs/reiserfs/xattr.c:1007
reiserfs_fill_super+0x2207/0x2620 fs/reiserfs/super.c:2175
mount_bdev+0x237/0x300 fs/super.c:1650
legacy_get_tree+0xef/0x190 fs/fs_context.c:662
vfs_get_tree+0x8c/0x2a0 fs/super.c:1771
do_new_mount+0x28f/0xae0 fs/namespace.c:3337
do_mount fs/namespace.c:3677 [inline]
__do_sys_mount fs/namespace.c:3886 [inline]
__se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3863
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x45/0x110 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f73f747e42a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f73f8263ee8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f73f8263f80 RCX: 00007f73f747e42a
RDX: 0000000020000100 RSI: 0000000020000140 RDI: 00007f73f8263f40
RBP: 0000000020000100 R08: 00007f73f8263f80 R09: 0000000002a0c004
R10: 0000000002a0c004 R11: 0000000000000202 R12: 0000000020000140
R13: 00007f73f8263f40 R14: 0000000000001109 R15: 0000000020003600