INFO: task syz-executor.1:15646 blocked for more than 143 seconds.
Not tainted 6.9.0-syzkaller-08414-g7ee332c9f12b #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:27856 pid:15646 tgid:15637 ppid:13428 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0x17e8/0x4a50 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6838
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6895
rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common+0x1af/0x200 kernel/locking/rwsem.c:1306
inode_lock_nested include/linux/fs.h:826 [inline]
lock_rename fs/namei.c:3074 [inline]
do_renameat2+0x62c/0x13f0 fs/namei.c:4979
__do_sys_renameat2 fs/namei.c:5078 [inline]
__se_sys_renameat2 fs/namei.c:5075 [inline]
__x64_sys_renameat2+0xd2/0xf0 fs/namei.c:5075
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe93ac7cee9
RSP: 002b:00007fe93ba700c8 EFLAGS: 00000246 ORIG_RAX: 000000000000013c
RAX: ffffffffffffffda RBX: 00007fe93adac050 RCX: 00007fe93ac7cee9
RDX: 0000000000000008 RSI: 0000000020000080 RDI: 0000000000000008
RBP: 00007fe93acc949e R08: 0000000000000000 R09: 0000000000000000
R10: 00000000200000c0 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fe93adac050 R15: 00007fff791dabb8
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8e3343a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
#0: ffffffff8e3343a0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
#0: ffffffff8e3343a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
2 locks held by getty/4844:
#0: ffff88802b0c30a0 (&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+0x6b5/0x1e10 drivers/tty/n_tty.c:2201
1 lock held by syz-executor.5/5125:
1 lock held by syz-executor.1/15641:
2 locks held by syz-executor.1/15646:
#0: ffff88802e026420 (sb_writers#34){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:409
#1: ffff88805afa8188 (&type->i_mutex_dir_key#25/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:826 [inline]
#1: ffff88805afa8188 (&type->i_mutex_dir_key#25/1){+.+.}-{3:3}, at: lock_rename fs/namei.c:3074 [inline]
#1: ffff88805afa8188 (&type->i_mutex_dir_key#25/1){+.+.}-{3:3}, at: do_renameat2+0x62c/0x13f0 fs/namei.c:4979
1 lock held by syz-executor.3/16257:
#0: ffffffff8e339778 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:323 [inline]
#0: ffffffff8e339778 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:939
2 locks held by syz-executor.1/17401:
1 lock held by syz-executor.2/17404:
#0: ffffffff8e339778 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:291 [inline]
#0: ffffffff8e339778 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 kernel/rcu/tree_exp.h:939
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.9.0-syzkaller-08414-g7ee332c9f12b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xfde/0x1020 kernel/hung_task.c:380
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 5125 Comm: syz-executor.5 Not tainted 6.9.0-syzkaller-08414-g7ee332c9f12b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:_compound_head include/linux/page-flags.h:246 [inline]
RIP: 0010:__folio_rmap_sanity_checks+0x86/0x350 include/linux/rmap.h:213
Code: 9a b1 ff bf 01 00 00 00 44 89 fe e8 b4 9e b1 ff 45 85 ff 0f 8e dc 00 00 00 e8 66 9a b1 ff 49 8d 6c 24 08 48 89 e8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 ef e8 6b ae 16 00 48 8b 5d 00 48 89 de
RSP: 0018:ffffc90004dc7388 EFLAGS: 00000216
RAX: 1ffffd4000352759 RBX: 0000000000000000 RCX: ffff88807a92bc00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffffea0001a93ac8 R08: ffffffff81e496dc R09: 1ffffd400035275e
R10: dffffc0000000000 R11: fffff9400035275f R12: ffffea0001a93ac0
R13: dffffc0000000000 R14: ffffea0001a93ac0 R15: 0000000000000001
FS: 0000555556ac5480(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f95046d56c6 CR3: 000000006003a000 CR4: 0000000000350ef0
Call Trace:
__folio_dup_file_rmap include/linux/rmap.h:321 [inline]
folio_dup_file_rmap_ptes include/linux/rmap.h:348 [inline]
copy_present_ptes mm/memory.c:1031 [inline]
copy_pte_range mm/memory.c:1151 [inline]
copy_pmd_range mm/memory.c:1238 [inline]
copy_pud_range mm/memory.c:1275 [inline]
copy_p4d_range mm/memory.c:1299 [inline]
copy_page_range+0x162f/0x5b00 mm/memory.c:1397
dup_mmap kernel/fork.c:751 [inline]
dup_mm kernel/fork.c:1688 [inline]
copy_mm+0x137d/0x21f0 kernel/fork.c:1737
copy_process+0x187a/0x3dc0 kernel/fork.c:2390
kernel_clone+0x226/0x8f0 kernel/fork.c:2797
__do_sys_clone kernel/fork.c:2940 [inline]
__se_sys_clone kernel/fork.c:2924 [inline]
__x64_sys_clone+0x258/0x2a0 kernel/fork.c:2924
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9503a79f13
Code: 1f 84 00 00 00 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 89 c2 85 c0 75 2c 64 48 8b 04 25 10 00 00
RSP: 002b:00007fff31481998 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9503a79f13
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001
R10: 0000555556ac5750 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000