INFO: task syz-executor.4:14813 blocked for more than 143 seconds.
Not tainted 6.9.0-rc6-syzkaller-00227-g3d25a941ea50 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:26128 pid:14813 tgid:14807 ppid:10763 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0x1796/0x4a00 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:830 [inline]
lock_rename fs/namei.c:3066 [inline]
do_renameat2+0x62c/0x13f0 fs/namei.c:4972
__do_sys_rename fs/namei.c:5084 [inline]
__se_sys_rename fs/namei.c:5082 [inline]
__x64_sys_rename+0x86/0xa0 fs/namei.c:5082
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: 0033:0x7ff7e0a7dca9
RSP: 002b:00007ff7e17490c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007ff7e0bac050 RCX: 00007ff7e0a7dca9
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000020000040
RBP: 00007ff7e0ac947e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007ff7e0bac050 R15: 00007ffc7d9e9cb8
INFO: task syz-executor.4:14814 blocked for more than 144 seconds.
Not tainted 6.9.0-rc6-syzkaller-00227-g3d25a941ea50 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:28248 pid:14814 tgid:14807 ppid:10763 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0x1796/0x4a00 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:830 [inline]
filename_create+0x260/0x540 fs/namei.c:3892
do_mknodat+0x18b/0x5b0 fs/namei.c:4038
__do_sys_mknod fs/namei.c:4084 [inline]
__se_sys_mknod fs/namei.c:4082 [inline]
__x64_sys_mknod+0x8e/0xa0 fs/namei.c:4082
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: 0033:0x7ff7e0a7dca9
RSP: 002b:00007ff7e17280c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000085
RAX: ffffffffffffffda RBX: 00007ff7e0bac120 RCX: 00007ff7e0a7dca9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000040
RBP: 00007ff7e0ac947e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007ff7e0bac120 R15: 00007ffc7d9e9cb8
INFO: task syz-executor.4:14817 blocked for more than 144 seconds.
Not tainted 6.9.0-rc6-syzkaller-00227-g3d25a941ea50 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:28656 pid:14817 tgid:14807 ppid:10763 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0x1796/0x4a00 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:830 [inline]
lock_rename fs/namei.c:3066 [inline]
do_renameat2+0x62c/0x13f0 fs/namei.c:4972
__do_sys_rename fs/namei.c:5084 [inline]
__se_sys_rename fs/namei.c:5082 [inline]
__x64_sys_rename+0x86/0xa0 fs/namei.c:5082
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: 0033:0x7ff7e0a7dca9
RSP: 002b:00007ff7e17070c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007ff7e0bac1f0 RCX: 00007ff7e0a7dca9
RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000020000080
RBP: 00007ff7e0ac947e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007ff7e0bac1f0 R15: 00007ffc7d9e9cb8
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8e334da0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
#0: ffffffff8e334da0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
#0: ffffffff8e334da0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
2 locks held by getty/4832:
#0: ffff88802aea50a0 (&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 syz-executor.4/14808:
2 locks held by syz-executor.4/14813:
#0: ffff88807e9b6420 (sb_writers#29){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:409
#1: ffff88806d039160 (&type->i_mutex_dir_key#19/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:830 [inline]
#1: ffff88806d039160 (&type->i_mutex_dir_key#19/1){+.+.}-{3:3}, at: lock_rename fs/namei.c:3066 [inline]
#1: ffff88806d039160 (&type->i_mutex_dir_key#19/1){+.+.}-{3:3}, at: do_renameat2+0x62c/0x13f0 fs/namei.c:4972
2 locks held by syz-executor.4/14814:
#0: ffff88807e9b6420 (sb_writers#29){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:409
#1: ffff88806d039160 (&type->i_mutex_dir_key#19/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:830 [inline]
#1: ffff88806d039160 (&type->i_mutex_dir_key#19/1){+.+.}-{3:3}, at: filename_create+0x260/0x540 fs/namei.c:3892
2 locks held by syz-executor.4/14817:
#0: ffff88807e9b6420 (sb_writers#29){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:409
#1: ffff88806d039160 (&type->i_mutex_dir_key#19/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:830 [inline]
#1: ffff88806d039160 (&type->i_mutex_dir_key#19/1){+.+.}-{3:3}, at: lock_rename fs/namei.c:3066 [inline]
#1: ffff88806d039160 (&type->i_mutex_dir_key#19/1){+.+.}-{3:3}, at: do_renameat2+0x62c/0x13f0 fs/namei.c:4972
1 lock held by syz-executor.2/16544:
1 lock held by syz-executor.4/17072:
3 locks held by syz-executor.3/17132:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.9.0-rc6-syzkaller-00227-g3d25a941ea50 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
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+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:244
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 1099 Comm: kworker/u8:6 Not tainted 6.9.0-rc6-syzkaller-00227-g3d25a941ea50 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:stack_access_ok arch/x86/kernel/unwind_orc.c:393 [inline]
RIP: 0010:deref_stack_reg+0x46/0x260 arch/x86/kernel/unwind_orc.c:403
Code: 00 00 00 fc ff df e8 e9 92 54 00 48 8d 6b 08 49 89 ec 49 c1 ec 03 43 80 3c 3c 00 74 08 48 89 ef e8 bf ed b5 00 48 89 6c 24 10 <4c> 89 74 24 18 48 8b 43 08 48 89 44 24 20 48 8d 6b 10 49 89 ed 49
RSP: 0018:ffffc900048f6a28 EFLAGS: 00000246
RAX: ffffffff81417ce7 RBX: ffffc900048f6b60 RCX: ffff888022388000
RDX: 0000000000000000 RSI: ffffc900048f6fb0 RDI: ffffc900048f6b60
RBP: ffffc900048f6b68 R08: 0000000000000005 R09: ffffffff814168df
R10: 0000000000000003 R11: ffff888022388000 R12: 1ffff9200091ed6d
R13: dffffc0000000000 R14: ffffc900048f6ba0 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1c08cd9359 CR3: 000000004c240000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
unwind_next_frame+0x1ab8/0x2a00 arch/x86/kernel/unwind_orc.c:648
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
poison_kmalloc_redzone mm/kasan/common.c:370 [inline]
__kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:387
kasan_kmalloc include/linux/kasan.h:211 [inline]
__do_kmalloc_node mm/slub.c:3966 [inline]
__kmalloc+0x233/0x4a0 mm/slub.c:3979
kmalloc include/linux/slab.h:632 [inline]
kzalloc include/linux/slab.h:749 [inline]
cfg80211_inform_single_bss_data+0xc5b/0x22e0 net/wireless/scan.c:2240
cfg80211_inform_bss_data+0x3e3/0x57d0 net/wireless/scan.c:3067
cfg80211_inform_bss_frame_data+0x3bc/0x720 net/wireless/scan.c:3157
ieee80211_bss_info_update+0x8a7/0xbc0 net/mac80211/scan.c:226
ieee80211_rx_bss_info net/mac80211/ibss.c:1099 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1578 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1962/0x2d70 net/mac80211/ibss.c:1605
ieee80211_iface_process_skb net/mac80211/iface.c:1605 [inline]
ieee80211_iface_work+0x8a3/0xf10 net/mac80211/iface.c:1659
cfg80211_wiphy_work+0x221/0x260 net/wireless/core.c:437
process_one_work kernel/workqueue.c:3267 [inline]
process_scheduled_works+0xa10/0x17c0 kernel/workqueue.c:3348
worker_thread+0x86d/0xd70 kernel/workqueue.c:3429
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:244