INFO: task syz-executor:14499 blocked for more than 143 seconds.
Not tainted 6.12.0-rc3-syzkaller-00044-g2f87d0916ce0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:20992 pid:14499 tgid:14499 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1843/0x4ae0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831
rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1578
mmap_write_lock include/linux/mmap_lock.h:106 [inline]
exit_mmap+0x2bd/0xc40 mm/mmap.c:1872
__mmput+0x115/0x380 kernel/fork.c:1347
exit_mm+0x220/0x310 kernel/exit.c:571
do_exit+0x9b2/0x28e0 kernel/exit.c:926
do_group_exit+0x207/0x2c0 kernel/exit.c:1088
get_signal+0x16a3/0x1740 kernel/signal.c:2917
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ffb10774257
RSP: 002b:00007ffdfe4c44e0 EFLAGS: 00000293 ORIG_RAX: 000000000000003d
RAX: fffffffffffffe00 RBX: 0000000000000010 RCX: 00007ffb10774257
RDX: 0000000040000000 RSI: 00007ffdfe4c453c RDI: 00000000ffffffff
RBP: 00007ffdfe4c453c R08: 0000000000000000 R09: 7fffffffffffffff
R10: 0000000000000000 R11: 0000000000000293 R12: 000055557ee055eb
R13: 000055557ee05590 R14: 00000000001fe97e R15: 00007ffdfe4c4590
INFO: task syz.4.1196:14899 blocked for more than 143 seconds.
Not tainted 6.12.0-rc3-syzkaller-00044-g2f87d0916ce0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.1196 state:D stack:22232 pid:14899 tgid:14893 ppid:14499 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1843/0x4ae0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831
rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1578
mmap_write_lock include/linux/mmap_lock.h:106 [inline]
exit_mmap+0x2bd/0xc40 mm/mmap.c:1872
__mmput+0x115/0x380 kernel/fork.c:1347
exit_mm+0x220/0x310 kernel/exit.c:571
do_exit+0x9b2/0x28e0 kernel/exit.c:926
do_group_exit+0x207/0x2c0 kernel/exit.c:1088
get_signal+0x16a3/0x1740 kernel/signal.c:2917
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ffb1077dff9
RSP: 002b:00007ffb1152c038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: 0000000000010106 RBX: 00007ffb10936058 RCX: 00007ffb1077dff9
RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000003
RBP: 00007ffb107f0296 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ffb10936058 R15: 00007ffdfe4c4178
INFO: task syz.1.1200:14910 blocked for more than 144 seconds.
Not tainted 6.12.0-rc3-syzkaller-00044-g2f87d0916ce0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.1200 state:D stack:21688 pid:14910 tgid:14909 ppid:14493 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1843/0x4ae0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831
rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1578
mmap_write_lock include/linux/mmap_lock.h:106 [inline]
exit_mmap+0x2bd/0xc40 mm/mmap.c:1872
__mmput+0x115/0x380 kernel/fork.c:1347
exit_mm+0x220/0x310 kernel/exit.c:571
do_exit+0x9b2/0x28e0 kernel/exit.c:926
do_group_exit+0x207/0x2c0 kernel/exit.c:1088
get_signal+0x16a3/0x1740 kernel/signal.c:2917
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f061677dff9
RSP: 002b:00007f06174cb0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f0616935f88 RCX: 00007f061677dff9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f0616935f88
RBP: 00007f0616935f80 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0616935f8c
R13: 0000000000000000 R14: 00007ffdf54e9620 R15: 00007ffdf54e9708
INFO: task syz.3.1201:14913 blocked for more than 144 seconds.
Not tainted 6.12.0-rc3-syzkaller-00044-g2f87d0916ce0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.1201 state:D stack:23512 pid:14913 tgid:14911 ppid:14497 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1843/0x4ae0 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831
rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1578
mmap_write_lock include/linux/mmap_lock.h:106 [inline]
exit_mmap+0x2bd/0xc40 mm/mmap.c:1872
__mmput+0x115/0x380 kernel/fork.c:1347
exit_mm+0x220/0x310 kernel/exit.c:571
do_exit+0x9b2/0x28e0 kernel/exit.c:926
do_group_exit+0x207/0x2c0 kernel/exit.c:1088
get_signal+0x16a3/0x1740 kernel/signal.c:2917
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f041cf7dff9
RSP: 002b:00007f041dcc90e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f041d135f88 RCX: 00007f041cf7dff9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f041d135f88
RBP: 00007f041d135f80 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f041d135f8c
R13: 0000000000000000 R14: 00007ffeb6b53b40 R15: 00007ffeb6b53c28
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8e937de0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e937de0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e937de0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6720
3 locks held by kworker/u8:2/35:
2 locks held by udevd/4676:
#0: ffffffff8e9eb390 (dup_mmap_sem){.+.+}-{0:0}, at: dup_mmap kernel/fork.c:636 [inline]
#0: ffffffff8e9eb390 (dup_mmap_sem){.+.+}-{0:0}, at: dup_mm kernel/fork.c:1674 [inline]
#0: ffffffff8e9eb390 (dup_mmap_sem){.+.+}-{0:0}, at: copy_mm+0x282/0x1f40 kernel/fork.c:1723
#1: ffff88807e0a9e18 (&mm->mmap_lock){++++}-{3:3}, at: mmap_write_lock_killable include/linux/mmap_lock.h:122 [inline]
#1: ffff88807e0a9e18 (&mm->mmap_lock){++++}-{3:3}, at: dup_mmap kernel/fork.c:637 [inline]
#1: ffff88807e0a9e18 (&mm->mmap_lock){++++}-{3:3}, at: dup_mm kernel/fork.c:1674 [inline]
#1: ffff88807e0a9e18 (&mm->mmap_lock){++++}-{3:3}, at: copy_mm+0x2a5/0x1f40 kernel/fork.c:1723
2 locks held by getty/4974:
#0: ffff888032a520a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900031332f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
1 lock held by syz-executor/5208:
#0: ffff88804c343118 (&mm->mmap_lock){++++}-{3:3}, at: mmap_write_lock_killable include/linux/mmap_lock.h:122 [inline]
#0: ffff88804c343118 (&mm->mmap_lock){++++}-{3:3}, at: vm_mmap_pgoff+0x17c/0x3d0 mm/util.c:586
1 lock held by syz.4.934/14075:
1 lock held by syz-executor/14490:
#0: ffff888024d97398 (&mm->mmap_lock){++++}-{3:3}, at: mmap_write_lock_killable include/linux/mmap_lock.h:122 [inline]
#0: ffff888024d97398 (&mm->mmap_lock){++++}-{3:3}, at: __do_sys_brk mm/mmap.c:125 [inline]
#0: ffff888024d97398 (&mm->mmap_lock){++++}-{3:3}, at: __se_sys_brk+0x154/0xe30 mm/mmap.c:115
2 locks held by syz-executor/14495:
#0: ffffffff8e9eb390 (dup_mmap_sem){.+.+}-{0:0}, at: dup_mmap kernel/fork.c:636 [inline]
#0: ffffffff8e9eb390 (dup_mmap_sem){.+.+}-{0:0}, at: dup_mm kernel/fork.c:1674 [inline]
#0: ffffffff8e9eb390 (dup_mmap_sem){.+.+}-{0:0}, at: copy_mm+0x282/0x1f40 kernel/fork.c:1723
#1: ffff888024d90198 (&mm->mmap_lock){++++}-{3:3}, at: mmap_write_lock_killable include/linux/mmap_lock.h:122 [inline]
#1: ffff888024d90198 (&mm->mmap_lock){++++}-{3:3}, at: dup_mmap kernel/fork.c:637 [inline]
#1: ffff888024d90198 (&mm->mmap_lock){++++}-{3:3}, at: dup_mm kernel/fork.c:1674 [inline]
#1: ffff888024d90198 (&mm->mmap_lock){++++}-{3:3}, at: copy_mm+0x2a5/0x1f40 kernel/fork.c:1723
1 lock held by syz-executor/14499:
#0: ffff888024d90b18 (&mm->mmap_lock){++++}-{3:3}, at: mmap_write_lock include/linux/mmap_lock.h:106 [inline]
#0: ffff888024d90b18 (&mm->mmap_lock){++++}-{3:3}, at: exit_mmap+0x2bd/0xc40 mm/mmap.c:1872
1 lock held by syz.4.1196/14899:
#0: ffff88807c368b18 (&mm->mmap_lock){++++}-{3:3}, at: mmap_write_lock include/linux/mmap_lock.h:106 [inline]
#0: ffff88807c368b18 (&mm->mmap_lock){++++}-{3:3}, at: exit_mmap+0x2bd/0xc40 mm/mmap.c:1872
1 lock held by syz.1.1200/14910:
#0: ffff88807c36ba98 (&mm->mmap_lock){++++}-{3:3}, at: mmap_write_lock include/linux/mmap_lock.h:106 [inline]
#0: ffff88807c36ba98 (&mm->mmap_lock){++++}-{3:3}, at: exit_mmap+0x2bd/0xc40 mm/mmap.c:1872
1 lock held by syz.3.1201/14913:
#0: ffff88807e770b18 (&mm->mmap_lock){++++}-{3:3}, at: mmap_write_lock include/linux/mmap_lock.h:106 [inline]
#0: ffff88807e770b18 (&mm->mmap_lock){++++}-{3:3}, at: exit_mmap+0x2bd/0xc40 mm/mmap.c:1872
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.12.0-rc3-syzkaller-00044-g2f87d0916ce0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
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: 11064 Comm: kworker/u8:23 Not tainted 6.12.0-rc3-syzkaller-00044-g2f87d0916ce0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:ieee802_11_parse_elems_full+0x296/0x2880
Code: 2f 00 74 08 4c 89 f7 e8 08 51 c0 f6 49 8b 06 48 89 44 24 40 48 8b 44 24 08 42 80 3c 28 00 74 0a 48 8b 7c 24 10 e8 ea 50 c0 f6 <48> 8b 44 24 28 48 8b 48 10 48 89 4c 24 70 48 8d 58 30 48 89 d8 48
RSP: 0018:ffffc9000488eb80 EFLAGS: 00000246
RAX: 1ffff92000911dd6 RBX: ffff888041a1f318 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 000000000000007f RDI: ffff888041a1f2b6
RBP: ffffc9000488ee10 R08: 0000000000000002 R09: 0000000000000006
R10: ffff888041a1f2a6 R11: ffffed1008343e57 R12: ffff888041a1f008
R13: dffffc0000000000 R14: ffffc9000488eea8 R15: 1ffff92000911dd5
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa4171be580 CR3: 0000000061b3a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
ieee802_11_parse_elems_crc net/mac80211/ieee80211_i.h:2383 [inline]
ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2390 [inline]
ieee80211_inform_bss+0x15f/0x1080 net/mac80211/scan.c:79
rdev_inform_bss net/wireless/rdev-ops.h:418 [inline]
cfg80211_inform_single_bss_data+0xec1/0x2090 net/wireless/scan.c:2333
cfg80211_inform_bss_data+0x3ce/0x5e70 net/wireless/scan.c:3184
cfg80211_inform_bss_frame_data+0x3b8/0x720 net/wireless/scan.c:3279
ieee80211_bss_info_update+0x8a7/0xbc0 net/mac80211/scan.c:226
ieee80211_rx_bss_info net/mac80211/ibss.c:1100 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1579 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1962/0x2d70 net/mac80211/ibss.c:1606
ieee80211_iface_process_skb net/mac80211/iface.c:1603 [inline]
ieee80211_iface_work+0x8a5/0xf20 net/mac80211/iface.c:1657
cfg80211_wiphy_work+0x2db/0x490 net/wireless/core.c:440
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
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