INFO: task syz-executor.2:8406 blocked for more than 148 seconds.
Not tainted 6.8.0-rc2-next-20240202-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:24696 pid:8406 tgid:8403 ppid:5101 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x17df/0x4a40 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6804 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6819
schedule_timeout+0xb0/0x310 kernel/time/timer.c:2159
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common kernel/sched/completion.c:116 [inline]
wait_for_common kernel/sched/completion.c:127 [inline]
wait_for_completion+0x355/0x620 kernel/sched/completion.c:148
__flush_workqueue+0x730/0x1630 kernel/workqueue.c:3617
ceph_monc_stop+0x7c/0x1e0 net/ceph/mon_client.c:1248
ceph_destroy_client+0x74/0x130 net/ceph/ceph_common.c:768
destroy_fs_client+0x192/0x270 fs/ceph/super.c:899
deactivate_locked_super+0xc4/0x130 fs/super.c:477
ceph_get_tree+0x9a9/0x17b0 fs/ceph/super.c:1361
vfs_get_tree+0x90/0x2a0 fs/super.c:1784
vfs_cmd_create+0xe4/0x230 fs/fsopen.c:230
__do_sys_fsconfig fs/fsopen.c:476 [inline]
__se_sys_fsconfig+0x967/0xec0 fs/fsopen.c:349
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7fc637e7dda9
RSP: 002b:00007fc638c610c8 EFLAGS: 00000246 ORIG_RAX: 00000000000001af
RAX: ffffffffffffffda RBX: 00007fc637fabf80 RCX: 00007fc637e7dda9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000003
RBP: 00007fc637eca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fc637fabf80 R15: 00007ffff9ca40e8
INFO: task syz-executor.3:8411 blocked for more than 150 seconds.
Not tainted 6.8.0-rc2-next-20240202-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:27096 pid:8411 tgid:8410 ppid:5118 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x17df/0x4a40 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6804 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6819
schedule_timeout+0xb0/0x310 kernel/time/timer.c:2159
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common kernel/sched/completion.c:116 [inline]
wait_for_common kernel/sched/completion.c:127 [inline]
wait_for_completion+0x355/0x620 kernel/sched/completion.c:148
__flush_workqueue+0x730/0x1630 kernel/workqueue.c:3617
ceph_mdsc_pre_umount+0x5b5/0x8b0 fs/ceph/mds_client.c:5475
ceph_kill_sb+0x9f/0x4b0 fs/ceph/super.c:1535
deactivate_locked_super+0xc4/0x130 fs/super.c:477
ceph_get_tree+0x9a9/0x17b0 fs/ceph/super.c:1361
vfs_get_tree+0x90/0x2a0 fs/super.c:1784
vfs_cmd_create+0xe4/0x230 fs/fsopen.c:230
__do_sys_fsconfig fs/fsopen.c:476 [inline]
__se_sys_fsconfig+0x967/0xec0 fs/fsopen.c:349
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7fec3447dda9
RSP: 002b:00007fec352390c8 EFLAGS: 00000246 ORIG_RAX: 00000000000001af
RAX: ffffffffffffffda RBX: 00007fec345abf80 RCX: 00007fec3447dda9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000003
RBP: 00007fec344ca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fec345abf80 R15: 00007ffe970b8ae8
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0:
ffffffff8e130d60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
ffffffff8e130d60 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
ffffffff8e130d60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
2 locks held by getty/4828:
#0: ffff88802a8670a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f162f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2201
3 locks held by kworker/0:3/5151:
#0: ffff888029e5bd48 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3024 [inline]
#0: ffff888029e5bd48 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x14f0 kernel/workqueue.c:3125
#1: ffffc90003867d20 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3024 [inline]
#1: ffffc90003867d20 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x14f0 kernel/workqueue.c:3125
#2: ffffffff8f379fc8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 net/ipv6/addrconf.c:4129
3 locks held by kworker/1:4/5154:
4 locks held by kworker/u4:9/5457:
#0: ffff888015acd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3024 [inline]
#0: ffff888015acd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x14f0 kernel/workqueue.c:3125
#1: ffffc9000531fd20 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3024 [inline]
#1: ffffc9000531fd20 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x14f0 kernel/workqueue.c:3125
#2: ffffffff8f36da50 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xf5/0xb90 net/core/net_namespace.c:580
#3: ffffffff8e1360f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:291 [inline]
#3: ffffffff8e1360f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x39a/0x820 kernel/rcu/tree_exp.h:939
1 lock held by syz-executor.2/8406:
#0: ffff88807b43c870 (&fc->uapi_mutex){+.+.}-{3:3}, at: __do_sys_fsconfig fs/fsopen.c:474 [inline]
#0: ffff88807b43c870 (&fc->uapi_mutex){+.+.}-{3:3}, at: __se_sys_fsconfig+0x8e6/0xec0 fs/fsopen.c:349
2 locks held by syz-executor.3/8411:
#0: ffff8880299f8870 (&fc->uapi_mutex){+.+.}-{3:3}, at: __do_sys_fsconfig fs/fsopen.c:474 [inline]
#0: ffff8880299f8870 (&fc->uapi_mutex){+.+.}-{3:3}, at: __se_sys_fsconfig+0x8e6/0xec0 fs/fsopen.c:349
#1: ffff8880374a60e0 (&type->s_umount_key#84/1){+.+.}-{3:3}, at: alloc_super+0x20e/0x8f0 fs/super.c:345
2 locks held by syz-executor.3/8877:
#0: ffff88807b43d870 (&fc->uapi_mutex){+.+.}-{3:3}, at: __do_sys_fsconfig fs/fsopen.c:474 [inline]
#0: ffff88807b43d870 (&fc->uapi_mutex){+.+.}-{3:3}, at: __se_sys_fsconfig+0x8e6/0xec0 fs/fsopen.c:349
#1: ffff88803651a0e0 (&type->s_umount_key#84/1){+.+.}-{3:3}, at: alloc_super+0x20e/0x8f0 fs/super.c:345
2 locks held by syz-executor.2/8889:
#0: ffff888082332870 (&fc->uapi_mutex){+.+.}-{3:3}, at: __do_sys_fsconfig fs/fsopen.c:474 [inline]
#0: ffff888082332870 (&fc->uapi_mutex){+.+.}-{3:3}, at: __se_sys_fsconfig+0x8e6/0xec0 fs/fsopen.c:349
#1: ffff88801f6120e0 (&type->s_umount_key#84/1){+.+.}-{3:3}, at: alloc_super+0x20e/0x8f0 fs/super.c:345
1 lock held by udevd/9016:
#0: ffff88801d09d9c0 (mapping.invalidate_lock#2){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:857 [inline]
#0: ffff88801d09d9c0 (mapping.invalidate_lock#2){.+.+}-{3:3}, at: page_cache_ra_unbounded+0xf2/0x7c0 mm/readahead.c:225
1 lock held by udevd/9030:
#0: ffff8880203bfb60 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_simple_ioctl drivers/block/loop.c:1505 [inline]
#0: ffff8880203bfb60 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_ioctl+0x60e/0x20d0 drivers/block/loop.c:1579
2 locks held by syz-executor.3/9062:
#0: ffffffff8f3dd970 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216
#1: ffffffff8f379fc8 (rtnl_mutex){+.+.}-{3:3}, at: nl80211_pre_doit+0x5f/0x8b0 net/wireless/nl80211.c:16461
1 lock held by syz-executor.2/9111:
#0: ffffffff8f379fc8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f379fc8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x82c/0x1040 net/core/rtnetlink.c:6612
1 lock held by syz-executor.0/9394:
#0: ffffffff8f36da50 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c8/0x7b0 net/core/net_namespace.c:491
2 locks held by syz-executor.1/9406:
#0: ffffffff8f36da50 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c8/0x7b0 net/core/net_namespace.c:491
#1: ffffffff8f379fc8 (rtnl_mutex){+.+.}-{3:3}, at: ip_tunnel_init_net+0x213/0x710 net/ipv4/ip_tunnel.c:1090
1 lock held by syz-executor.1/9408:
#0: ffff8880203bfb60 (&lo->lo_mutex){+.+.}-{3:3}, at: loop_set_status+0x2a/0x900 drivers/block/loop.c:1265
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.8.0-rc2-next-20240202-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2e0 lib/dump_stack.c:106
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:222 [inline]
watchdog+0xfb0/0xff0 kernel/hung_task.c:379
kthread+0x2f0/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:242
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 3746 Comm: kworker/u4:8 Not tainted 6.8.0-rc2-next-20240202-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:unwind_next_frame+0x8b/0x2a00 arch/x86/kernel/unwind_orc.c:471
Code: 3c 28 00 74 08 48 89 df e8 32 55 b6 00 48 8b 45 38 48 89 84 24 90 00 00 00 48 89 e8 48 c1 e8 03 48 89 44 24 08 42 0f b6 04 28 <84> c0 0f 85 6a 20 00 00 44 8b 75 00 31 ff 44 89 f6 e8 af 64 53 00
RSP: 0018:ffffc9000c74edc8 EFLAGS: 00000a06
RAX: 0000000000000000 RBX: ffffc9000c74eed8 RCX: ffff88802d790000
RDX: 0000000000000000 RSI: ffffffff8abc11b1 RDI: ffffc9000c74eea0
RBP: ffffc9000c74eea0 R08: 000000000000000b R09: ffffc9000c74ef90
R10: 0000000000000003 R11: ffffffff8180a3c0 R12: ffff88802d790000
R13: dffffc0000000000 R14: ffffc9000c74ef80 R15: ffffffff8abc11b1
FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb7289ec440 CR3: 000000002c680000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:586
poison_slab_object+0xa6/0xe0 mm/kasan/common.c:240
__kasan_slab_free+0x37/0x60 mm/kasan/common.c:256
kasan_slab_free include/linux/kasan.h:184 [inline]
slab_free_hook mm/slub.c:2122 [inline]
slab_free mm/slub.c:4296 [inline]
kfree+0x14a/0x380 mm/slub.c:4406
ieee80211_inform_bss+0xba2/0x1060 net/mac80211/scan.c:160
rdev_inform_bss+0x11f/0x480 net/wireless/rdev-ops.h:418
cfg80211_inform_single_bss_frame_data net/wireless/scan.c:3037 [inline]
cfg80211_inform_bss_frame_data+0x11af/0x1d60 net/wireless/scan.c:3068
ieee80211_bss_info_update+0x8a7/0xbc0 net/mac80211/scan.c:226
ieee80211_rx_bss_info net/mac80211/ibss.c:1098 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1577 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1924/0x2cd0 net/mac80211/ibss.c:1604
ieee80211_iface_process_skb net/mac80211/iface.c:1589 [inline]
ieee80211_iface_work+0x809/0xd90 net/mac80211/iface.c:1643
cfg80211_wiphy_work+0x221/0x260 net/wireless/core.c:437
process_one_work kernel/workqueue.c:3049 [inline]
process_scheduled_works+0x913/0x14f0 kernel/workqueue.c:3125
worker_thread+0xa60/0x1000 kernel/workqueue.c:3206
kthread+0x2f0/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:242