INFO: task syz.3.1074:9101 blocked for more than 143 seconds.
Not tainted 5.15.168-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.1074 state:D stack:22048 pid: 9101 ppid: 6402 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5027 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6373
schedule+0x11b/0x1f0 kernel/sched/core.c:6456
rwsem_down_write_slowpath+0xf0c/0x16a0 kernel/locking/rwsem.c:1165
inode_lock include/linux/fs.h:789 [inline]
f2fs_fallocate+0x22c/0x910 fs/f2fs/file.c:1776
vfs_fallocate+0x54a/0x6b0 fs/open.c:308
do_vfs_ioctl+0x2317/0x2b70 fs/ioctl.c:853
__do_sys_ioctl fs/ioctl.c:872 [inline]
__se_sys_ioctl+0x81/0x160 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fa89f763ff9
RSP: 002b:00007fa89dbdc038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fa89f91bf80 RCX: 00007fa89f763ff9
RDX: 0000000020000140 RSI: 0000000040305828 RDI: 0000000000000005
RBP: 00007fa89f7d6296 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fa89f91bf80 R15: 00007ffd9816c478
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8c91fc20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
4 locks held by kworker/u4:5/1247:
#0: ffff8880171cd938 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc90004e5fd20 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
#2: ffffffff8da265d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xf1/0xb60 net/core/net_namespace.c:561
#3: ffffffff8da32188 (rtnl_mutex){+.+.}-{3:3}, at: ieee80211_unregister_hw+0x4d/0x220 net/mac80211/main.c:1390
2 locks held by getty/3325:
#0: ffff8880297f3098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252
#1: ffffc9000208e2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 drivers/tty/n_tty.c:2158
2 locks held by kworker/0:6/3616:
#0: ffff888017072138 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc90003097d20 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
4 locks held by kworker/u4:8/3781:
#0: ffff8881445a2138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc90003327d20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
#2: ffff8880609dc0e0 (&type->s_umount_key#76){++++}-{3:3}, at: trylock_super+0x1b/0xf0 fs/super.c:418
#3: ffff88807cfe51b0 (&sbi->gc_lock){+.+.}-{3:3}, at: f2fs_balance_fs+0x4d4/0x6a0 fs/f2fs/segment.c:528
3 locks held by kworker/1:13/4223:
#0: ffff88814afcbd38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc900038d7d20 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
#2: ffffffff8da32188 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xcc/0x1720 net/ipv6/addrconf.c:4113
2 locks held by kworker/u4:10/4256:
2 locks held by syz.3.1074/9101:
#0: ffff8880609dc460 (sb_writers#25){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:3044 [inline]
#0: ffff8880609dc460 (sb_writers#25){.+.+}-{0:0}, at: vfs_fallocate+0x4bd/0x6b0 fs/open.c:307
#1: ffff88805ed78ad0 (&sb->s_type->i_mutex_key#32){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:789 [inline]
#1: ffff88805ed78ad0 (&sb->s_type->i_mutex_key#32){+.+.}-{3:3}, at: f2fs_fallocate+0x22c/0x910 fs/f2fs/file.c:1776
5 locks held by syz.3.1074/9134:
3 locks held by kworker/0:29/10015:
#0: ffff888017070938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc9000535fd20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
#2: ffffffff8c9241e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline]
#2: ffffffff8c9241e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x280/0x740 kernel/rcu/tree_exp.h:845
1 lock held by syz-executor/10765:
#0: ffffffff8da32188 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8da32188 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x94c/0xee0 net/core/rtnetlink.c:5644
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.168-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
watchdog+0xe72/0xeb0 kernel/hung_task.c:295
kthread+0x3f6/0x4f0 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 10985 Comm: modprobe Not tainted 5.15.168-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__page_memcg+0xa8/0x160 include/linux/memcontrol.h:406
Code: ff df 80 7c 05 00 00 74 08 4c 89 e7 e8 21 94 fa ff 49 8b 1c 24 49 83 fd ff 74 68 f6 c3 01 48 bd 00 00 00 00 00 fc ff df 75 54 <4c> 89 f3 48 89 df be 08 00 00 00 e8 88 95 fa ff 48 89 d8 48 c1 e8
RSP: 0018:ffffc900044b75c8 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: ffffea0001ffa388 RCX: 1ffff92000896ecc
RDX: 1ffff92000896ed0 RSI: ffffffff8ad90260 RDI: ffffea0001ffa378
RBP: dffffc0000000000 R08: dffffc0000000000 R09: fffffbfff20ec621
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffea0001ffa348
R13: 00fff00000020036 R14: ffffea0001ffa340 R15: ffff888017284000
FS: 0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3fc4e50440 CR3: 0000000075528000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
page_memcg include/linux/memcontrol.h:459 [inline]
lock_page_memcg+0x16e/0x4d0 mm/memcontrol.c:2049
page_remove_rmap+0x2a/0x11e0 mm/rmap.c:1351
zap_pte_range mm/memory.c:1373 [inline]
zap_pmd_range mm/memory.c:1494 [inline]
zap_pud_range mm/memory.c:1523 [inline]
zap_p4d_range mm/memory.c:1544 [inline]
unmap_page_range+0xffa/0x2630 mm/memory.c:1565
unmap_vmas+0x1f8/0x390 mm/memory.c:1642
exit_mmap+0x3b6/0x670 mm/mmap.c:3186
__mmput+0x112/0x3b0 kernel/fork.c:1126
exit_mm+0x688/0x7f0 kernel/exit.c:550
do_exit+0x626/0x2480 kernel/exit.c:861
do_group_exit+0x144/0x310 kernel/exit.c:996
__do_sys_exit_group kernel/exit.c:1007 [inline]
__se_sys_exit_group kernel/exit.c:1005 [inline]
__x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1005
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f3fc4f0ea90
Code: Unable to access opcode bytes at RIP 0x7f3fc4f0ea66.
RSP: 002b:00007ffdb70f09c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f3fc4fff860 RCX: 00007f3fc4f0ea90
RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001
RBP: 00007f3fc4fff860 R08: 00007ffdb70f0840 R09: 00007ffdb70f0920
R10: 00007ffdb70f0880 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f3fc5003658 R15: 0000000000000001