INFO: task syz-executor.2:6108 blocked for more than 143 seconds.
Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:27872 pid:6108 tgid:6107 ppid:5083 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0xf15/0x5c70 kernel/sched/core.c:6736
__schedule_loop kernel/sched/core.c:6813 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6828
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6885
rwsem_down_write_slowpath kernel/locking/rwsem.c:1178 [inline]
__down_write_common+0x950/0x13f0 kernel/locking/rwsem.c:1306
filemap_invalidate_lock include/linux/fs.h:838 [inline]
blk_ioctl_zeroout block/ioctl.c:192 [inline]
blkdev_common_ioctl+0x1116/0x1cd0 block/ioctl.c:520
blkdev_ioctl+0x247/0x770 block/ioctl.c:634
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:904 [inline]
__se_sys_ioctl fs/ioctl.c:890 [inline]
__x64_sys_ioctl+0x193/0x220 fs/ioctl.c:890
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f6d3d27de69
RSP: 002b:00007f6d3df080c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f6d3d3abf80 RCX: 00007f6d3d27de69
RDX: 0000000020000240 RSI: 000000000000127f RDI: 0000000000000005
RBP: 00007f6d3d2ca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f6d3d3abf80 R15: 00007ffff4095488
INFO: task syz-executor.1:6143 blocked for more than 143 seconds.
Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:25632 pid:6143 tgid:6141 ppid:5074 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0xf15/0x5c70 kernel/sched/core.c:6736
__schedule_loop kernel/sched/core.c:6813 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6828
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6885
rwsem_down_read_slowpath+0x61e/0xb20 kernel/locking/rwsem.c:1086
__down_read_common kernel/locking/rwsem.c:1250 [inline]
__down_read kernel/locking/rwsem.c:1263 [inline]
down_read+0x124/0x330 kernel/locking/rwsem.c:1528
filemap_invalidate_lock_shared include/linux/fs.h:848 [inline]
page_cache_ra_unbounded+0x138/0x5f0 mm/readahead.c:225
do_page_cache_ra mm/readahead.c:299 [inline]
ondemand_readahead+0xd8b/0x1140 mm/readahead.c:639
page_cache_sync_ra+0x174/0x1d0 mm/readahead.c:693
page_cache_sync_readahead include/linux/pagemap.h:1300 [inline]
filemap_get_pages+0xc0f/0x1840 mm/filemap.c:2507
filemap_read+0x39b/0xcf0 mm/filemap.c:2603
blkdev_read_iter+0x191/0x510 block/fops.c:754
call_read_iter include/linux/fs.h:2102 [inline]
do_iter_readv_writev+0x5e6/0x780 fs/read_write.c:739
vfs_readv+0x33e/0x870 fs/read_write.c:932
do_preadv+0x1b2/0x260 fs/read_write.c:1049
__do_sys_preadv2 fs/read_write.c:1111 [inline]
__se_sys_preadv2 fs/read_write.c:1102 [inline]
__x64_sys_preadv2+0xef/0x160 fs/read_write.c:1102
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7fb5f827de69
RSP: 002b:00007fb5f7dff0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000147
RAX: ffffffffffffffda RBX: 00007fb5f83abf80 RCX: 00007fb5f827de69
RDX: 0000000000000002 RSI: 0000000020000080 RDI: 0000000000000006
RBP: 00007fb5f82ca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fb5f83abf80 R15: 00007ffd97c9f178
Showing all locks held in the system:
3 locks held by kworker/u8:1/11:
1 lock held by khungtaskd/29:
#0: ffffffff8d7b08e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
#0: ffffffff8d7b08e0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
#0: ffffffff8d7b08e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6614
3 locks held by kworker/u8:7/1267:
2 locks held by getty/4814:
#0: ffff88802c1400a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900015e02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc8/0x1490 drivers/tty/n_tty.c:2201
1 lock held by syz-executor.4/5918:
1 lock held by syz-executor.2/6108:
#0: ffff88801d4a59c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:838 [inline]
#0: ffff88801d4a59c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:192 [inline]
#0: ffff88801d4a59c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1116/0x1cd0 block/ioctl.c:520
1 lock held by syz-executor.1/6143:
#0: ffff88801d4a59c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:848 [inline]
#0: ffff88801d4a59c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0x138/0x5f0 mm/readahead.c:225
1 lock held by syz-executor.3/6289:
#0: ffff88801d4a59c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:838 [inline]
#0: ffff88801d4a59c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:192 [inline]
#0: ffff88801d4a59c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1116/0x1cd0 block/ioctl.c:520
1 lock held by syz-executor.4/6293:
#0: ffff88801d4a59c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:848 [inline]
#0: ffff88801d4a59c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0x138/0x5f0 mm/readahead.c:225
4 locks held by syz-executor.1/6296:
1 lock held by syz-executor.2/6449:
#0: ffff88801d4a59c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:848 [inline]
#0: ffff88801d4a59c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0x138/0x5f0 mm/readahead.c:225
2 locks held by syz-executor.4/6466:
#0: ffff888043911060 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x26/0x90 net/bluetooth/hci_core.c:552
#1: ffff888043910078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x339/0x11e0 net/bluetooth/hci_sync.c:5140
1 lock held by syz-executor.0/6609:
#0: ffff88801d4a59c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:848 [inline]
#0: ffff88801d4a59c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0x138/0x5f0 mm/readahead.c:225
1 lock held by syz-executor.2/6627:
#0: ffffffff8d7bc4b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:323 [inline]
#0: ffffffff8d7bc4b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x403/0x7a0 kernel/rcu/tree_exp.h:939
2 locks held by syz-executor.3/7318:
#0: ffff888037e2fa10 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:793 [inline]
#0: ffff888037e2fa10 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: __sock_release+0x86/0x270 net/socket.c:658
#1: ffffffff8d7bc4b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:323 [inline]
#1: ffffffff8d7bc4b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x403/0x7a0 kernel/rcu/tree_exp.h:939
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #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+0x116/0x1f0 lib/dump_stack.c:114
nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x29c/0x300 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+0xf86/0x1210 kernel/hung_task.c:379
kthread+0x2c1/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 1265 Comm: kworker/u8:6 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:__sanitizer_cov_trace_pc+0x18/0x60 kernel/kcov.c:203
Code: 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 65 48 8b 15 04 db 76 7e 65 8b 05 05 db 76 7e a9 00 01 ff 00 <48> 8b 34 24 74 0f f6 c4 01 74 35 8b 82 14 16 00 00 85 c0 74 2b 8b
RSP: 0018:ffffc90005567340 EFLAGS: 00000246
RAX: 0000000080000001 RBX: ffffffff8fb6e26c RCX: ffffffff813c8bf4
RDX: ffff888024385a00 RSI: ffffffff813c8b93 RDI: 0000000000000006
RBP: ffffffff8fb6e268 R08: 0000000000000006 R09: ffffffff81e6fa99
R10: ffffffff81e6fa8c R11: 0000000000000004 R12: ffffffff81e6fa99
R13: ffffffff81e6fa8c R14: dffffc0000000000 R15: ffffffff8fb6e268
FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00098e000 CR3: 0000000034826000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__orc_find+0x70/0x130 arch/x86/kernel/unwind_orc.c:99
orc_find arch/x86/kernel/unwind_orc.c:227 [inline]
unwind_next_frame+0x335/0x23a0 arch/x86/kernel/unwind_orc.c:494
arch_stack_walk+0x100/0x170 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:370 [inline]
__kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:387
kasan_kmalloc include/linux/kasan.h:211 [inline]
__do_kmalloc_node mm/slub.c:3966 [inline]
__kmalloc+0x1f9/0x440 mm/slub.c:3979
kmalloc include/linux/slab.h:632 [inline]
kzalloc include/linux/slab.h:749 [inline]
ieee802_11_parse_elems_full+0xea/0x15d0 net/mac80211/parse.c:880
ieee802_11_parse_elems_crc net/mac80211/ieee80211_i.h:2325 [inline]
ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2332 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1574 [inline]
ieee80211_ibss_rx_queued_mgmt+0xd13/0x30d0 net/mac80211/ibss.c:1605
ieee80211_iface_process_skb net/mac80211/iface.c:1605 [inline]
ieee80211_iface_work+0xc07/0xf00 net/mac80211/iface.c:1659
cfg80211_wiphy_work+0x255/0x330 net/wireless/core.c:437
process_one_work+0x9a9/0x1a60 kernel/workqueue.c:3254
process_scheduled_works kernel/workqueue.c:3335 [inline]
worker_thread+0x6c8/0xf70 kernel/workqueue.c:3416
kthread+0x2c1/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243