INFO: task syz.3.362:9902 blocked in I/O wait for more than 143 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.362 state:D stack:25224 pid:9902 tgid:9901 ppid:9499 task_flags:0x400140 flags:0x00080002
Call Trace:
context_switch kernel/sched/core.c:5584 [inline]
__schedule+0x1768/0x5780 kernel/sched/core.c:7389
__schedule_loop kernel/sched/core.c:7466 [inline]
schedule+0x164/0x2b0 kernel/sched/core.c:7481
io_schedule+0x80/0xe0 kernel/sched/core.c:8153
io_schedule+0x80/0xe0 kernel/sched/core.c:8153
TXN_SLEEP_DROP_LOCK fs/jfs/jfs_txnmgr.c:125 [inline]
txBegin+0x281/0xbe0 fs/jfs/jfs_txnmgr.c:376
jfs_create+0x219/0xae0 fs/jfs/namei.c:99
lookup_open+0x103d/0x1b00 fs/namei.c:4575
open_last_lookups fs/namei.c:4774 [inline]
path_openat+0x711/0x2100 fs/namei.c:5013
do_file_open+0x23e/0x4a0 fs/namei.c:5045
do_sys_openat2+0x115/0x200 fs/open.c:1443
do_sys_open fs/open.c:1449 [inline]
__do_sys_creat fs/open.c:1527 [inline]
__se_sys_creat fs/open.c:1521 [inline]
__x64_sys_creat+0x8f/0xc0 fs/open.c:1521
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x16a/0x530 arch/x86/entry/syscall_64.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f52ad398f19
RSP: 002b:00007f52ab5e6028 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007f52ad615fa0 RCX: 00007f52ad398f19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000011380
RBP: 00007f52ad427f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f52ad616038 R14: 00007f52ad615fa0 R15: 00007ffc28a5da78
INFO: task syz.3.362:9918 blocked for more than 143 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.362 state:D stack:28760 pid:9918 tgid:9901 ppid:9499 task_flags:0x400040 flags:0x00080002
Call Trace:
context_switch kernel/sched/core.c:5584 [inline]
__schedule+0x1768/0x5780 kernel/sched/core.c:7389
__schedule_loop kernel/sched/core.c:7466 [inline]
rt_mutex_schedule+0x76/0xf0 kernel/sched/core.c:7731
rt_mutex_slowlock_block kernel/locking/rtmutex.c:1670 [inline]
__rt_mutex_slowlock kernel/locking/rtmutex.c:1747 [inline]
__rt_mutex_slowlock_locked+0x1f86/0x25f0 kernel/locking/rtmutex.c:1787
rt_mutex_slowlock+0xbd/0x180 kernel/locking/rtmutex.c:1827
__rt_mutex_lock kernel/locking/rtmutex.c:1842 [inline]
rwbase_write_lock+0x14c/0x780 kernel/locking/rwbase_rt.c:251
inode_lock_nested include/linux/fs.h:1072 [inline]
__start_dirop fs/namei.c:2924 [inline]
start_dirop fs/namei.c:2948 [inline]
filename_create+0x200/0x370 fs/namei.c:5108
filename_symlinkat+0xe8/0x430 fs/namei.c:5831
__do_sys_symlinkat fs/namei.c:5857 [inline]
__se_sys_symlinkat+0x4e/0x2b0 fs/namei.c:5852
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x16a/0x530 arch/x86/entry/syscall_64.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f52ad398f19
RSP: 002b:00007f52ab5c5028 EFLAGS: 00000246 ORIG_RAX: 000000000000010a
RAX: ffffffffffffffda RBX: 00007f52ad616090 RCX: 00007f52ad398f19
RDX: 0000200000011600 RSI: ffffffffffffff9c RDI: 00002000000114c0
RBP: 00007f52ad427f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f52ad616128 R14: 00007f52ad616090 R15: 00007ffc28a5da78
INFO: task syz.3.362:9919 blocked for more than 143 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.362 state:D stack:28872 pid:9919 tgid:9901 ppid:9499 task_flags:0x400040 flags:0x00080002
Call Trace:
context_switch kernel/sched/core.c:5584 [inline]
__schedule+0x1768/0x5780 kernel/sched/core.c:7389
__schedule_loop kernel/sched/core.c:7466 [inline]
rt_mutex_schedule+0x76/0xf0 kernel/sched/core.c:7731
rt_mutex_slowlock_block kernel/locking/rtmutex.c:1670 [inline]
__rt_mutex_slowlock kernel/locking/rtmutex.c:1747 [inline]
__rt_mutex_slowlock_locked+0x1f86/0x25f0 kernel/locking/rtmutex.c:1787
rt_mutex_slowlock+0xbd/0x180 kernel/locking/rtmutex.c:1827
__rt_mutex_lock kernel/locking/rtmutex.c:1842 [inline]
rwbase_write_lock+0x14c/0x780 kernel/locking/rwbase_rt.c:251
inode_lock_nested include/linux/fs.h:1072 [inline]
__start_dirop fs/namei.c:2924 [inline]
start_dirop fs/namei.c:2948 [inline]
filename_create+0x200/0x370 fs/namei.c:5108
filename_mkdirat+0xd2/0x560 fs/namei.c:5454
__do_sys_mkdirat fs/namei.c:5482 [inline]
__se_sys_mkdirat+0x35/0x150 fs/namei.c:5479
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x16a/0x530 arch/x86/entry/syscall_64.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f52ad397d87
RSP: 002b:00007f52ab5a3e58 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f52ab5a3ee0 RCX: 00007f52ad397d87
RDX: 00000000000001ff RSI: 0000200000000b40 RDI: 00000000ffffff9c
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000b40
R13: 00007f52ab5a3ea0 R14: 0000000000000000 R15: 0000000000000000
Showing all locks held in the system:
locks held by khungtaskd/39: 1, on CPU#0:
#0: ffffffff8f3c15c0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
#0: ffffffff8f3c15c0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8f3c15c0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6871
locks held by kworker/u8:4/83: 3, last CPU#1:
#0: ffff88801c290940 ((wq_completion)netns){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
#0: ffff88801c290940 ((wq_completion)netns){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffff88801c290940 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3460 [inline]
#0: ffff88801c290940 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3578
#1: ffffc9000157fc40 (net_cleanup_work){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
#1: ffffc9000157fc40 (net_cleanup_work){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#1: ffffc9000157fc40 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3460 [inline]
#1: ffffc9000157fc40 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3578
#2: ffffffff90803760 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xf5/0x810 net/core/net_namespace.c:679
locks held by kworker/u8:8/1035: 10, on CPU#0:
#0: ffff88802cff7940 ((wq_completion)wg-kex-wg2#51){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
#0: ffff88802cff7940 ((wq_completion)wg-kex-wg2#51){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffff88802cff7940 ((wq_completion)wg-kex-wg2#51){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3460 [inline]
#0: ffff88802cff7940 ((wq_completion)wg-kex-wg2#51){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3578
#1: ffffc90005e8fc40 ((work_completion)(&peer->transmit_handshake_work)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
#1: ffffc90005e8fc40 ((work_completion)(&peer->transmit_handshake_work)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#1: ffffc90005e8fc40 ((work_completion)(&peer->transmit_handshake_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3460 [inline]
#1: ffffc90005e8fc40 ((work_completion)(&peer->transmit_handshake_work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3578
#2: ffffffff8f255b40 (local_bh){.+.+}-{1:3}, at: __local_bh_disable_ip+0x3d/0x420 kernel/softirq.c:186
#3: ffffffff8f3c15c0 (rcu_read_lock){....}-{1:3}, at: __local_bh_disable_ip+0x3d/0x420 kernel/softirq.c:186
#4: ffff888061d42ce8 (&peer->endpoint_lock){++..}-{3:3}, at: read_lock_bh include/linux/rwlock_rt.h:45 [inline]
#4: ffff888061d42ce8 (&peer->endpoint_lock){++..}-{3:3}, at: wg_socket_send_skb_to_peer+0x6e/0x200 drivers/net/wireguard/socket.c:172
#5: ffffffff8f3c15c0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
#5: ffffffff8f3c15c0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#5: ffffffff8f3c15c0 (rcu_read_lock){....}-{1:3}, at: rt_read_lock+0x279/0x4b0 kernel/locking/spinlock_rt.c:251
#6: ffffffff8f255b40 (local_bh){.+.+}-{1:3}, at: __local_bh_disable_ip+0x3d/0x420 kernel/softirq.c:186
#7: ffffffff8f3c1620 (rcu_read_lock_bh){....}-{1:3}, at: local_bh_disable include/linux/bottom_half.h:20 [inline]
#7: ffffffff8f3c1620 (rcu_read_lock_bh){....}-{1:3}, at: rcu_read_lock_bh include/linux/rcupdate.h:902 [inline]
#7: ffffffff8f3c1620 (rcu_read_lock_bh){....}-{1:3}, at: send4+0x217/0xec0 drivers/net/wireguard/socket.c:38
#8: ffffffff8f3c15c0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
#8: ffffffff8f3c15c0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#8: ffffffff8f3c15c0 (rcu_read_lock){....}-{1:3}, at: ip_route_output_key_hash+0xd8/0x2a0 net/ipv4/route.c:2744
#9: ffff88803c380838 (&dir->lock#2){+.+.}-{3:3}, at: spin_lock include/linux/spinlock_rt.h:45 [inline]
#9: ffff88803c380838 (&dir->lock#2){+.+.}-{3:3}, at: ref_tracker_alloc+0x24d/0x570 lib/ref_tracker.c:279
locks held by kworker/u8:11/1119: 3, last CPU#1:
#0: ffff88801bf6a140 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
#0: ffff88801bf6a140 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffff88801bf6a140 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3460 [inline]
#0: ffff88801bf6a140 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3578
#1: ffffc9000613fc40 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
#1: ffffc9000613fc40 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#1: ffffc9000613fc40 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3460 [inline]
#1: ffffc9000613fc40 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3578
#2: ffffffff90812418 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:134 [inline]
#2: ffffffff90812418 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_dad_work+0x123/0x16e0 net/ipv6/addrconf.c:4256
locks held by kworker/u8:16/1482: 5, on CPU#1:
#0: ffff88802cff7940 ((wq_completion)wg-kex-wg2#51){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
#0: ffff88802cff7940 ((wq_completion)wg-kex-wg2#51){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffff88802cff7940 ((wq_completion)wg-kex-wg2#51){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3460 [inline]
#0: ffff88802cff7940 ((wq_completion)wg-kex-wg2#51){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3578
#1: ffffc90006a4fc40 ((work_completion)(&peer->transmit_handshake_work)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
#1: ffffc90006a4fc40 ((work_completion)(&peer->transmit_handshake_work)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#1: ffffc90006a4fc40 ((work_completion)(&peer->transmit_handshake_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3460 [inline]
#1: ffffc90006a4fc40 ((work_completion)(&peer->transmit_handshake_work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3578
#2: ffffffff8f3c15c0 (rcu_read_lock){....}-{1:3}, at: __local_bh_disable_ip+0x3d/0x420 kernel/softirq.c:186
#3: ffffffff8f3c15c0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
#3: ffffffff8f3c15c0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#3: ffffffff8f3c15c0 (rcu_read_lock){....}-{1:3}, at: process_backlog+0x261/0xc50 net/core/dev.c:6898
#4: ffffffff8f3c15c0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
#4: ffffffff8f3c15c0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#4: ffffffff8f3c15c0 (rcu_read_lock){....}-{1:3}, at: ip6_input+0x23/0x270 net/ipv6/ip6_input.c:544
locks held by getty/5361: 2, last CPU#1:
#0: ffff8880343580a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900044ce2e0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x460/0x1360 drivers/tty/n_tty.c:2211
locks held by kworker/1:4/5610: 5, on CPU#1:
#0: ffff88802ca58940 ((wq_completion)wg-kex-wg0#56){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
#0: ffff88802ca58940 ((wq_completion)wg-kex-wg0#56){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffff88802ca58940 ((wq_completion)wg-kex-wg0#56){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3460 [inline]
#0: ffff88802ca58940 ((wq_completion)wg-kex-wg0#56){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3578
#1: ffffc90005237c40 ((work_completion)(&({ do { const void __attribute__((btf_type_tag("percpu"))) *__vpp_verify = (typeof((worker) + 0))((void *)0); (void)__vpp_verify; } while (0); ((typeof((__typeof_unqual__(*((worker))) *)(( unsigned long)((worker)))))((unsigned long)((__typeof_unqual__(*((worker))) *)(( unsigned long)((worker)))) + (((__per_cpu_offset[(cpu)]))))); })->work)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
#1: ffffc90005237c40 ((work_completion)(&({ do { const void __attribute__((btf_type_tag("percpu"))) *__vpp_verify = (typeof((worker) + 0))((void *)0); (void)__vpp_verify; } while (0); ((typeof((__typeof_unqual__(*((worker))) *)(( unsigned long)((worker)))))((unsigned long)((__typeof_unqual__(*((worker))) *)(( unsigned long)((worker)))) + (((__per_cpu_offset[(cpu)]))))); })->work)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#1: ffffc90005237c40 ((work_completion)(&({ do { const void __attribute__((btf_type_tag("percpu"))) *__vpp_verify = (typeof((worker) + 0))((void *)0); (void)__vpp_verify; } while (0); ((typeof((__typeof_unqual__(*((worker))) *)(( unsigned long)((worker)))))((unsigned long)((__typeof_unqual__(*((worker))) *)(( unsigned long)((worker)))) + (((__per_cpu_offset[(cpu)]))))); })->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3460 [inline]
#1: ffffc90005237c40 ((work_completion)(&({ do { const void __attribute__((btf_type_tag("percpu"))) *__vpp_verify = (typeof((worker) + 0))((void *)0); (void)__vpp_verify; } while (0); ((typeof((__typeof_unqual__(*((worker))) *)(( unsigned long)((worker)))))((unsigned long)((__typeof_unqual__(*((worker))) *)(( unsigned long)((worker)))) + (((__per_cpu_offset[(cpu)]))))); })->work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3578
#2: ffff888041e4a3f0 (&handshake->lock){++++}-{4:4}, at: wg_noise_handshake_begin_session+0x38/0xbe0 drivers/net/wireguard/noise.c:821
#3: ffff88813ff13c58 (&n->list_lock){+.+.}-{3:3}, at: spin_lock include/linux/spinlock_rt.h:45 [inline]
#3: ffff88813ff13c58 (&n->list_lock){+.+.}-{3:3}, at: get_partial_node_bulk mm/slub.c:3868 [inline]
#3: ffff88813ff13c58 (&n->list_lock){+.+.}-{3:3}, at: __refill_objects_node+0x89/0x580 mm/slub.c:7400
#4: ffff8880b853cd60 (&rq->__lock){-...}-{2:2}, at: raw_spin_rq_lock_nested+0x2d/0x160 kernel/sched/core.c:677
locks held by syz.3.362/9902: 2, last CPU#1:
#0: ffff888060532528 (sb_writers#28){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 fs/namespace.c:531
#1: ffff8880608ec950 (&type->i_mutex_dir_key#29){++++}-{4:4}, at: inode_lock include/linux/fs.h:1027 [inline]
#1: ffff8880608ec950 (&type->i_mutex_dir_key#29){++++}-{4:4}, at: lookup_open+0x24c/0x1b00 fs/namei.c:4468
locks held by syz.3.362/9918: 2, last CPU#1:
#0: ffff888060532528 (sb_writers#28){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 fs/namespace.c:531
#1: ffff8880608ec950 (&type->i_mutex_dir_key#23/1){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:1072 [inline]
#1: ffff8880608ec950 (&type->i_mutex_dir_key#23/1){+.+.}-{4:4}, at: __start_dirop fs/namei.c:2924 [inline]
#1: ffff8880608ec950 (&type->i_mutex_dir_key#23/1){+.+.}-{4:4}, at: start_dirop fs/namei.c:2948 [inline]
#1: ffff8880608ec950 (&type->i_mutex_dir_key#23/1){+.+.}-{4:4}, at: filename_create+0x200/0x370 fs/namei.c:5108
locks held by syz.3.362/9919: 2, last CPU#0:
#0: ffff888060532528 (sb_writers#28){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 fs/namespace.c:531
#1: ffff8880608ec950 (&type->i_mutex_dir_key#23/1){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:1072 [inline]
#1: ffff8880608ec950 (&type->i_mutex_dir_key#23/1){+.+.}-{4:4}, at: __start_dirop fs/namei.c:2924 [inline]
#1: ffff8880608ec950 (&type->i_mutex_dir_key#23/1){+.+.}-{4:4}, at: start_dirop fs/namei.c:2948 [inline]
#1: ffff8880608ec950 (&type->i_mutex_dir_key#23/1){+.+.}-{4:4}, at: filename_create+0x200/0x370 fs/namei.c:5108
locks held by syz-executor/10589: 1, last CPU#1:
#0: ffff88802e37e0f8 (&type->s_umount_key#97){++++}-{4:4}, at: __super_lock fs/super.c:60 [inline]
#0: ffff88802e37e0f8 (&type->s_umount_key#97){++++}-{4:4}, at: __super_lock_excl fs/super.c:75 [inline]
#0: ffff88802e37e0f8 (&type->s_umount_key#97){++++}-{4:4}, at: deactivate_super+0xac/0xe0 fs/super.c:585
locks held by syz-executor/10755: 1, last CPU#1:
#0: ffffffff90812418 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:134 [inline]
#0: ffffffff90812418 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x470/0x19f0 net/ipv4/devinet.c:968
locks held by syz-executor/10789: 1, last CPU#0:
#0: ffffffff90812418 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:134 [inline]
#0: ffffffff90812418 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x470/0x19f0 net/ipv4/devinet.c:968
locks held by syz-executor/10853: 1, last CPU#1:
#0: ffffffff90812418 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline]
#0: ffffffff90812418 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:366 [inline]
#0: ffffffff90812418 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xc1d/0x1c30 net/core/rtnetlink.c:4251
locks held by syz-executor/10997: 1, on CPU#1:
#0: ffffffff90812418 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline]
#0: ffffffff90812418 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:366 [inline]
#0: ffffffff90812418 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xc1d/0x1c30 net/core/rtnetlink.c:4251
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 39 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)}
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
nmi_cpu_backtrace+0x274/0x2d0 lib/nmi_backtrace.c:123
nmi_trigger_cpumask_backtrace+0x17d/0x390 lib/nmi_backtrace.c:66
trigger_all_cpu_backtrace include/linux/nmi.h:164 [inline]
__sys_info lib/sys_info.c:157 [inline]
sys_info+0x135/0x170 lib/sys_info.c:165
check_hung_uninterruptible_tasks kernel/hung_task.c:377 [inline]
watchdog+0x1073/0x10f0 kernel/hung_task.c:598
kthread+0x38b/0x470 kernel/kthread.c:436
ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 5610 Comm: kworker/1:4 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026
Workqueue: wg-kex-wg0 wg_packet_handshake_receive_worker
RIP: 0010:__bfs kernel/locking/lockdep.c:1859 [inline]
RIP: 0010:__bfs_backwards kernel/locking/lockdep.c:1904 [inline]
RIP: 0010:check_irq_usage kernel/locking/lockdep.c:2840 [inline]
RIP: 0010:check_prev_add kernel/locking/lockdep.c:3213 [inline]
RIP: 0010:check_prevs_add kernel/locking/lockdep.c:3328 [inline]
RIP: 0010:validate_chain kernel/locking/lockdep.c:3952 [inline]
RIP: 0010:__lock_acquire+0x1a2b/0x2de0 kernel/locking/lockdep.c:5288
Code: 6b 04 35 15 25 ff 0f 00 00 39 05 2c 04 34 13 73 06 89 05 24 04 34 13 49 8b 06 48 89 df 4c 39 e8 0f 84 39 fe ff ff 4c 89 78 30 <48> 8b 00 4c 39 e8 75 f4 48 89 df e9 25 fe ff ff 48 89 fb 48 c7 c7
RSP: 0018:ffffc90005236e70 EFLAGS: 00000002
RAX: ffffffff975e14f8 RBX: 00000000000003cd RCX: 000000000000001d
RDX: 0000000000000008 RSI: ffff88805a14ac20 RDI: 00000000000003cd
RBP: 86685f0f780efb66 R08: ffffc90005236e38 R09: 0000000000000020
R10: dffffc0000000000 R11: ffffffff81a33e10 R12: 000000000000001c
R13: ffffffff94781a30 R14: ffffffff975a8688 R15: ffffffff975caf88
FS: 0000000000000000(0000) GS:ffff88812480e000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056216b22c138 CR3: 0000000039570000 CR4: 00000000003526f0
Call Trace:
lock_acquire+0x115/0x350 kernel/locking/lockdep.c:5942
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:155 [inline]
_raw_spin_lock_irqsave+0x40/0x60 kernel/locking/spinlock.c:181
lock_hrtimer_base kernel/time/hrtimer.c:192 [inline]
hrtimer_start_range_ns+0x8c/0x3f0 kernel/time/hrtimer.c:1536
hrtimer_start include/linux/hrtimer.h:246 [inline]
hrtick_cond_restart kernel/sched/core.c:949 [inline]
hrtick_schedule_exit kernel/sched/core.c:1011 [inline]
finish_lock_switch kernel/sched/core.c:5314 [inline]
finish_task_switch+0x3c0/0xc60 kernel/sched/core.c:5433
context_switch kernel/sched/core.c:5587 [inline]
__schedule+0x1770/0x5780 kernel/sched/core.c:7389
preempt_schedule_common+0x7f/0xd0 kernel/sched/core.c:7568
preempt_schedule_thunk+0x16/0x40 arch/x86/entry/thunk.S:12
class_preempt_destructor include/linux/preempt.h:496 [inline]
raw_spin_unlock_irqrestore_wake include/linux/sched/wake_q.h:102 [inline]
rtlock_slowlock kernel/locking/rtmutex.c:1923 [inline]
rtlock_lock kernel/locking/spinlock_rt.c:43 [inline]
__rt_spin_lock kernel/locking/spinlock_rt.c:49 [inline]
rt_spin_lock+0x31a/0x400 kernel/locking/spinlock_rt.c:57
spin_lock include/linux/spinlock_rt.h:45 [inline]
get_partial_node_bulk mm/slub.c:3868 [inline]
__refill_objects_node+0x89/0x580 mm/slub.c:7400
refill_objects+0x56/0x350 mm/slub.c:7526
refill_sheaf mm/slub.c:2917 [inline]
__pcs_replace_empty_main+0x339/0x690 mm/slub.c:4811
alloc_from_pcs mm/slub.c:4887 [inline]
slab_alloc_node mm/slub.c:5021 [inline]
__kmalloc_cache_noprof+0x46a/0x670 mm/slub.c:5676
_kmalloc_noprof include/linux/slab.h:991 [inline]
_kzalloc_noprof include/linux/slab.h:1312 [inline]
keypair_create drivers/net/wireguard/noise.c:100 [inline]
wg_noise_handshake_begin_session+0xcc/0xbe0 drivers/net/wireguard/noise.c:826
wg_packet_send_handshake_response+0x137/0x2d0 drivers/net/wireguard/send.c:96
wg_receive_handshake_packet drivers/net/wireguard/receive.c:154 [inline]
wg_packet_handshake_receive_worker+0x725/0x10a0 drivers/net/wireguard/receive.c:213
process_one_work kernel/workqueue.c:3495 [inline]
process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3578
worker_thread+0xa47/0xfb0 kernel/workqueue.c:3659
kthread+0x38b/0x470 kernel/kthread.c:436
ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245