INFO: task syz.3.230:7607 blocked for more than 143 seconds.
Not tainted 6.11.0-rc5-syzkaller-00176-g20371ba12063 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.230 state:D stack:27392 pid:7607 tgid:7602 ppid:6994 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
__fdget_pos+0x24e/0x310 fs/file.c:1187
fdget_pos include/linux/file.h:76 [inline]
__do_sys_getdents fs/readdir.c:320 [inline]
__se_sys_getdents+0x1c3/0x4d0 fs/readdir.c:309
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc2c2f79eb9
RSP: 002b:00007fc2c3dea038 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
RAX: ffffffffffffffda RBX: 00007fc2c3116130 RCX: 00007fc2c2f79eb9
RDX: 00000000000000bb RSI: ffffffff81000000 RDI: 0000000000000006
RBP: 00007fc2c2fe793e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fc2c3116130 R15: 00007ffec6d50ab8
INFO: task syz.3.230:7608 blocked for more than 144 seconds.
Not tainted 6.11.0-rc5-syzkaller-00176-g20371ba12063 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.230 state:D stack:26104 pid:7608 tgid:7602 ppid:6994 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common kernel/locking/rwsem.c:1306 [inline]
__down_write kernel/locking/rwsem.c:1315 [inline]
down_write_nested+0x1e0/0x220 kernel/locking/rwsem.c:1696
inode_lock_nested include/linux/fs.h:835 [inline]
filename_create+0x260/0x540 fs/namei.c:3979
do_mknodat+0x18b/0x5b0 fs/namei.c:4125
__do_sys_mknod fs/namei.c:4171 [inline]
__se_sys_mknod fs/namei.c:4169 [inline]
__x64_sys_mknod+0x8c/0xa0 fs/namei.c:4169
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc2c2f79eb9
RSP: 002b:00007fc2c3dc9038 EFLAGS: 00000246 ORIG_RAX: 0000000000000085
RAX: ffffffffffffffda RBX: 00007fc2c3116208 RCX: 00007fc2c2f79eb9
RDX: 0000000000000000 RSI: 0000000008001420 RDI: 0000000020000040
RBP: 00007fc2c2fe793e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fc2c3116208 R15: 00007ffec6d50ab8
INFO: task syz.3.230:7609 blocked for more than 144 seconds.
Not tainted 6.11.0-rc5-syzkaller-00176-g20371ba12063 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.230 state:D stack:26256 pid:7609 tgid:7602 ppid:6994 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
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+0x705/0xa40 kernel/locking/rwsem.c:1528
inode_lock_shared include/linux/fs.h:810 [inline]
open_last_lookups fs/namei.c:3646 [inline]
path_openat+0x7ec/0x3470 fs/namei.c:3883
do_filp_open+0x235/0x490 fs/namei.c:3913
do_sys_openat2+0x13e/0x1d0 fs/open.c:1416
do_sys_open fs/open.c:1431 [inline]
__do_sys_open fs/open.c:1439 [inline]
__se_sys_open fs/open.c:1435 [inline]
__x64_sys_open+0x225/0x270 fs/open.c:1435
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc2c2f79eb9
RSP: 002b:00007fc2c3da8038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007fc2c31162e0 RCX: 00007fc2c2f79eb9
RDX: 0000000000000000 RSI: 000000000000058e RDI: 0000000020000040
RBP: 00007fc2c2fe793e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fc2c31162e0 R15: 00007ffec6d50ab8
INFO: task syz.3.230:7610 blocked for more than 145 seconds.
Not tainted 6.11.0-rc5-syzkaller-00176-g20371ba12063 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.230 state:D stack:27064 pid:7610 tgid:7602 ppid:6994 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common kernel/locking/rwsem.c:1306 [inline]
__down_write kernel/locking/rwsem.c:1315 [inline]
down_write_nested+0x1e0/0x220 kernel/locking/rwsem.c:1696
inode_lock_nested include/linux/fs.h:835 [inline]
filename_create+0x260/0x540 fs/namei.c:3979
do_mkdirat+0xbd/0x3a0 fs/namei.c:4225
__do_sys_mkdir fs/namei.c:4253 [inline]
__se_sys_mkdir fs/namei.c:4251 [inline]
__x64_sys_mkdir+0x6c/0x80 fs/namei.c:4251
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc2c2f79eb9
RSP: 002b:00007fc2c3d87038 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 00007fc2c31163b8 RCX: 00007fc2c2f79eb9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000440
RBP: 00007fc2c2fe793e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fc2c31163b8 R15: 00007ffec6d50ab8
INFO: task syz.3.230:7611 blocked for more than 145 seconds.
Not tainted 6.11.0-rc5-syzkaller-00176-g20371ba12063 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.230 state:D stack:26616 pid:7611 tgid:7602 ppid:6994 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
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+0x705/0xa40 kernel/locking/rwsem.c:1528
inode_lock_shared include/linux/fs.h:810 [inline]
open_last_lookups fs/namei.c:3646 [inline]
path_openat+0x7ec/0x3470 fs/namei.c:3883
do_filp_open+0x235/0x490 fs/namei.c:3913
do_sys_openat2+0x13e/0x1d0 fs/open.c:1416
do_sys_open fs/open.c:1431 [inline]
__do_sys_open fs/open.c:1439 [inline]
__se_sys_open fs/open.c:1435 [inline]
__x64_sys_open+0x225/0x270 fs/open.c:1435
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc2c2f79eb9
RSP: 002b:00007fc2c3d66038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007fc2c3116490 RCX: 00007fc2c2f79eb9
RDX: 0000000000000000 RSI: 000000000000058e RDI: 0000000020000040
RBP: 00007fc2c2fe793e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fc2c3116490 R15: 00007ffec6d50ab8
INFO: task syz.3.230:7613 blocked for more than 146 seconds.
Not tainted 6.11.0-rc5-syzkaller-00176-g20371ba12063 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.230 state:D stack:25088 pid:7613 tgid:7602 ppid:6994 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common kernel/locking/rwsem.c:1306 [inline]
__down_write kernel/locking/rwsem.c:1315 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1580
inode_lock include/linux/fs.h:800 [inline]
open_last_lookups fs/namei.c:3644 [inline]
path_openat+0x7fb/0x3470 fs/namei.c:3883
do_filp_open+0x235/0x490 fs/namei.c:3913
do_sys_openat2+0x13e/0x1d0 fs/open.c:1416
do_sys_open fs/open.c:1431 [inline]
__do_sys_creat fs/open.c:1507 [inline]
__se_sys_creat fs/open.c:1501 [inline]
__x64_sys_creat+0x123/0x170 fs/open.c:1501
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc2c2f79eb9
RSP: 002b:00007fc2c3d45038 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007fc2c3116568 RCX: 00007fc2c2f79eb9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000580
RBP: 00007fc2c2fe793e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fc2c3116568 R15: 00007ffec6d50ab8
INFO: task syz.3.230:7616 blocked for more than 146 seconds.
Not tainted 6.11.0-rc5-syzkaller-00176-g20371ba12063 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.230 state:D stack:26208 pid:7616 tgid:7602 ppid:6994 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common kernel/locking/rwsem.c:1306 [inline]
__down_write kernel/locking/rwsem.c:1315 [inline]
down_write_nested+0x1e0/0x220 kernel/locking/rwsem.c:1696
inode_lock_nested include/linux/fs.h:835 [inline]
filename_create+0x260/0x540 fs/namei.c:3979
do_mkdirat+0xbd/0x3a0 fs/namei.c:4225
__do_sys_mkdir fs/namei.c:4253 [inline]
__se_sys_mkdir fs/namei.c:4251 [inline]
__x64_sys_mkdir+0x6c/0x80 fs/namei.c:4251
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc2c2f79eb9
RSP: 002b:00007fc2c3d24038 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 00007fc2c3116640 RCX: 00007fc2c2f79eb9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020001200
RBP: 00007fc2c2fe793e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fc2c3116640 R15: 00007ffec6d50ab8
INFO: task syz.3.230:7617 blocked for more than 147 seconds.
Not tainted 6.11.0-rc5-syzkaller-00176-g20371ba12063 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.230 state:D stack:27224 pid:7617 tgid:7602 ppid:6994 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
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+0x705/0xa40 kernel/locking/rwsem.c:1528
inode_lock_shared include/linux/fs.h:810 [inline]
lookup_slow+0x45/0x70 fs/namei.c:1734
walk_component+0x2e1/0x410 fs/namei.c:2039
lookup_last fs/namei.c:2542 [inline]
path_lookupat+0x16f/0x450 fs/namei.c:2566
filename_lookup+0x256/0x610 fs/namei.c:2595
user_path_at+0x3a/0x60 fs/namei.c:3002
do_fchownat+0xed/0x240 fs/open.c:819
__do_sys_lchown fs/open.c:850 [inline]
__se_sys_lchown fs/open.c:848 [inline]
__x64_sys_lchown+0x85/0xa0 fs/open.c:848
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc2c2f79eb9
RSP: 002b:00007fc2c3d03038 EFLAGS: 00000246 ORIG_RAX: 000000000000005e
RAX: ffffffffffffffda RBX: 00007fc2c3116718 RCX: 00007fc2c2f79eb9
RDX: 000000000000ee00 RSI: 0000000000000000 RDI: 0000000020000000
RBP: 00007fc2c2fe793e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fc2c3116718 R15: 00007ffec6d50ab8
Showing all locks held in the system:
1 lock held by khungtaskd/31:
#0: ffffffff8e738320 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline]
#0: ffffffff8e738320 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
#0: ffffffff8e738320 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6626
3 locks held by kworker/u8:4/62:
#0: ffff88801a889148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline]
#0: ffff88801a889148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1: ffffc900015dfd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline]
#1: ffffc900015dfd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
#2: ffffffff8fa796c8 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:276
2 locks held by kworker/u8:6/1061:
#0: ffff888021760148 ((wq_completion)iou_exit){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline]
#0: ffff888021760148 ((wq_completion)iou_exit){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1: ffffc90004217d00 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline]
#1: ffffc90004217d00 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
3 locks held by kworker/u8:10/2988:
#0: ffff88802fe77948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline]
#0: ffff88802fe77948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1: ffffc90009d67d00 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline]
#1: ffffc90009d67d00 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
#2: ffffffff8fa796c8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x19/0x30 net/ipv6/addrconf.c:4734
5 locks held by kworker/u8:11/3003:
#0: ffff88801b6e3148 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline]
#0: ffff88801b6e3148 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1: ffffc90009ba7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline]
#1: ffffc90009ba7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
#2: ffffffff8fa6cb10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 net/core/net_namespace.c:594
#3: ffffffff8fa796c8 (rtnl_mutex){+.+.}-{3:3}, at: cleanup_net+0x6af/0xcc0 net/core/net_namespace.c:630
#4: ffffffff8e73d6f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:296 [inline]
#4: ffffffff8e73d6f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 kernel/rcu/tree_exp.h:958
2 locks held by dhcpcd/4891:
#0: ffff888035fe2678 (nlk_cb_mutex-ROUTE){+.+.}-{3:3}, at: __netlink_dump_start+0x119/0x790 net/netlink/af_netlink.c:2404
#1: ffffffff8fa796c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#1: ffffffff8fa796c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_dumpit+0x99/0x200 net/core/rtnetlink.c:6506
2 locks held by getty/4984:
#0: ffff888030a4b0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900031232f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ac/0x1e00 drivers/tty/n_tty.c:2211
3 locks held by kworker/1:3/5278:
#0: ffff88801a880948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline]
#0: ffff88801a880948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1: ffffc90004247d00 (deferred_process_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline]
#1: ffffc90004247d00 (deferred_process_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
#2: ffffffff8fa796c8 (rtnl_mutex){+.+.}-{3:3}, at: switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:104
1 lock held by syz.3.230/7603:
#0: ffff888060c90180 (&type->i_mutex_dir_key#19){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:810 [inline]
#0: ffff888060c90180 (&type->i_mutex_dir_key#19){++++}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1734
4 locks held by syz.3.230/7606:
1 lock held by syz.3.230/7607:
#0: ffff8880129ea348 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24e/0x310 fs/file.c:1187
1 lock held by syz.3.230/7608:
#0: ffff888060c90180 (&type->i_mutex_dir_key#19/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:835 [inline]
#0: ffff888060c90180 (&type->i_mutex_dir_key#19/1){+.+.}-{3:3}, at: filename_create+0x260/0x540 fs/namei.c:3979
1 lock held by syz.3.230/7609:
#0: ffff888060c90180 (&type->i_mutex_dir_key#19){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:810 [inline]
#0: ffff888060c90180 (&type->i_mutex_dir_key#19){++++}-{3:3}, at: open_last_lookups fs/namei.c:3646 [inline]
#0: ffff888060c90180 (&type->i_mutex_dir_key#19){++++}-{3:3}, at: path_openat+0x7ec/0x3470 fs/namei.c:3883
1 lock held by syz.3.230/7610:
#0: ffff888060c90180 (&type->i_mutex_dir_key#19/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:835 [inline]
#0: ffff888060c90180 (&type->i_mutex_dir_key#19/1){+.+.}-{3:3}, at: filename_create+0x260/0x540 fs/namei.c:3979
1 lock held by syz.3.230/7611:
#0: ffff888060c90180 (&type->i_mutex_dir_key#19){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:810 [inline]
#0: ffff888060c90180 (&type->i_mutex_dir_key#19){++++}-{3:3}, at: open_last_lookups fs/namei.c:3646 [inline]
#0: ffff888060c90180 (&type->i_mutex_dir_key#19){++++}-{3:3}, at: path_openat+0x7ec/0x3470 fs/namei.c:3883
1 lock held by syz.3.230/7613:
#0: ffff888060c90180 (&type->i_mutex_dir_key#19){++++}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline]
#0: ffff888060c90180 (&type->i_mutex_dir_key#19){++++}-{3:3}, at: open_last_lookups fs/namei.c:3644 [inline]
#0: ffff888060c90180 (&type->i_mutex_dir_key#19){++++}-{3:3}, at: path_openat+0x7fb/0x3470 fs/namei.c:3883
1 lock held by syz.3.230/7616:
#0: ffff888060c90180 (&type->i_mutex_dir_key#19/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:835 [inline]
#0: ffff888060c90180 (&type->i_mutex_dir_key#19/1){+.+.}-{3:3}, at: filename_create+0x260/0x540 fs/namei.c:3979
1 lock held by syz.3.230/7617:
#0: ffff888060c90180 (&type->i_mutex_dir_key#19){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:810 [inline]
#0: ffff888060c90180 (&type->i_mutex_dir_key#19){++++}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1734
1 lock held by syz-executor/8748:
#0: ffffffff8fa796c8 (rtnl_mutex){+.+.}-{3:3}, at: tun_detach drivers/net/tun.c:698 [inline]
#0: ffffffff8fa796c8 (rtnl_mutex){+.+.}-{3:3}, at: tun_chr_close+0x3e/0x1b0 drivers/net/tun.c:3510
2 locks held by syz-executor/9126:
#0: ffffffff8fa6cb10 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504
#1: ffffffff8fa796c8 (rtnl_mutex){+.+.}-{3:3}, at: register_nexthop_notifier+0x84/0x290 net/ipv4/nexthop.c:3872
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.11.0-rc5-syzkaller-00176-g20371ba12063 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
__dump_stack lib/dump_stack.c:93 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119
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:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xff4/0x1040 kernel/hung_task.c:379
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/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 UID: 0 PID: 7606 Comm: syz.3.230 Not tainted 6.11.0-rc5-syzkaller-00176-g20371ba12063 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:check_kcov_mode kernel/kcov.c:184 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:245 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x2f/0x90 kernel/kcov.c:313
Code: 8b 04 24 65 48 8b 14 25 c0 d6 03 00 65 8b 05 90 46 70 7e 25 00 01 ff 00 74 10 3d 00 01 00 00 75 5b 83 ba 1c 16 00 00 00 74 52 <8b> 82 f8 15 00 00 83 f8 03 75 47 48 8b 8a 00 16 00 00 44 8b 8a fc
RSP: 0018:ffffc90009b16b38 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000040000
RDX: ffff888027488000 RSI: 0000000000000001 RDI: 0000000000000007
RBP: ffffc90009b16c48 R08: ffffffff818bde97 R09: 1ffffffff1fee825
R10: dffffc0000000000 R11: fffffbfff1fee826 R12: ffff8880b892d3e0
R13: ffffe8ffffd19640 R14: 1ffffd1ffffa32c8 R15: dffffc0000000000
FS: 00007fc2c3e0b6c0(0000) GS:ffff8880b8900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555563888608 CR3: 00000000542f8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
cpu_max_bits_warn include/linux/cpumask.h:135 [inline]
cpumask_check include/linux/cpumask.h:142 [inline]
cpumask_test_cpu include/linux/cpumask.h:562 [inline]
cpu_online include/linux/cpumask.h:1105 [inline]
trace_cgroup_rstat_cpu_unlock_fastpath include/trace/events/cgroup.h:292 [inline]
_cgroup_rstat_cpu_unlock kernel/cgroup/rstat.c:69 [inline]
cgroup_rstat_updated+0x607/0xc60 kernel/cgroup/rstat.c:129
memcg_rstat_updated+0x4d/0x2f0 mm/memcontrol.c:554
__mod_memcg_lruvec_state+0x2af/0x3b0 mm/memcontrol.c:728
__update_lru_size include/linux/mm_inline.h:47 [inline]
update_lru_size include/linux/mm_inline.h:56 [inline]
lruvec_add_folio include/linux/mm_inline.h:326 [inline]
lru_add_fn+0x9dc/0x1a20 mm/swap.c:201
folio_batch_move_lru+0x25e/0x4e0 mm/swap.c:215
lru_add_drain_cpu+0x10e/0x8c0 mm/swap.c:661
lru_add_drain+0x123/0x3e0 mm/swap.c:775
shrink_inactive_list mm/vmscan.c:1940 [inline]
shrink_list mm/vmscan.c:2194 [inline]
shrink_lruvec+0x1509/0x2eb0 mm/vmscan.c:5706
shrink_node_memcgs mm/vmscan.c:5908 [inline]
shrink_node+0x12a4/0x2df0 mm/vmscan.c:5948
shrink_zones mm/vmscan.c:6192 [inline]
do_try_to_free_pages+0x69d/0x1b20 mm/vmscan.c:6254
try_to_free_mem_cgroup_pages+0x4ab/0xb20 mm/vmscan.c:6586
try_charge_memcg+0x8c2/0x1170 mm/memcontrol.c:2210
try_charge mm/memcontrol-v1.h:20 [inline]
charge_memcg+0xa2/0x160 mm/memcontrol.c:4439
__mem_cgroup_charge+0x27/0x80 mm/memcontrol.c:4454
mem_cgroup_charge include/linux/memcontrol.h:672 [inline]
filemap_add_folio+0xb3/0x650 mm/filemap.c:965
do_read_cache_folio+0x10a/0x820 mm/filemap.c:3756
do_read_cache_page+0x30/0x200 mm/filemap.c:3855
read_mapping_page include/linux/pagemap.h:907 [inline]
dir_get_page fs/sysv/dir.c:64 [inline]
sysv_readdir+0x190/0x3e0 fs/sysv/dir.c:92
iterate_dir+0x57a/0x810 fs/readdir.c:108
__do_sys_getdents fs/readdir.c:324 [inline]
__se_sys_getdents+0x1ef/0x4d0 fs/readdir.c:309
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc2c2f79eb9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc2c3e0b038 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
RAX: ffffffffffffffda RBX: 00007fc2c3116058 RCX: 00007fc2c2f79eb9
RDX: 000000000000002b RSI: 0000000020000080 RDI: 0000000000000006
RBP: 00007fc2c2fe793e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fc2c3116058 R15: 00007ffec6d50ab8