INFO: task syz-executor.5:12681 blocked for more than 143 seconds.
Not tainted 6.8.0-rc7-syzkaller-00238-g005f6f34bd47 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:24752 pid:12681 tgid:12680 ppid:5108 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x17d1/0x49f0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6874
rwsem_down_write_slowpath+0xeea/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common+0x1ae/0x200 kernel/locking/rwsem.c:1306
filemap_invalidate_lock include/linux/fs.h:849 [inline]
blkdev_fallocate+0x22a/0x580 block/fops.c:800
vfs_fallocate+0x566/0x6c0 fs/open.c:328
ksys_fallocate fs/open.c:351 [inline]
__do_sys_fallocate fs/open.c:359 [inline]
__se_sys_fallocate fs/open.c:357 [inline]
__x64_sys_fallocate+0xbd/0x110 fs/open.c:357
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7fdbdfa7dda9
RSP: 002b:00007fdbdedff0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007fdbdfbabf80 RCX: 00007fdbdfa7dda9
RDX: 0000000000000000 RSI: 0000000000000010 RDI: 0000000000000008
RBP: 00007fdbdfaca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000001002000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fdbdfbabf80 R15: 00007ffdde7019b8
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8e130be0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
#0: ffffffff8e130be0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
#0: ffffffff8e130be0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
2 locks held by getty/4821:
#0: ffff88802a5140a0 (&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+0x6b4/0x1e10 drivers/tty/n_tty.c:2201
2 locks held by syz-executor.1/12150:
1 lock held by syz-executor.1/13403:
2 locks held by syz-executor.1/13406:
1 lock held by syz-executor.1/14279:
1 lock held by syz-executor.3/20244:
1 lock held by syz-executor.3/20245:
1 lock held by syz-executor.3/20956:
2 locks held by kworker/u4:2/23110:
1 lock held by syz-executor.5/12681:
#0: ffff88801d0914c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:849 [inline]
#0: ffff88801d0914c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x22a/0x580 block/fops.c:800
1 lock held by syz-executor.3/14177:
1 lock held by syz-executor.5/14465:
#0: ffff88801d0914c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:859 [inline]
#0: ffff88801d0914c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xf1/0x7c0 mm/readahead.c:225
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.8.0-rc7-syzkaller-00238-g005f6f34bd47 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
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+0xfaf/0xff0 kernel/hung_task.c:379
kthread+0x2f1/0x390 kernel/kthread.c:388
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:243
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5828 Comm: kworker/u4:16 Not tainted 6.8.0-rc7-syzkaller-00238-g005f6f34bd47 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:kfree_skbmem+0x4/0x180 net/core/skbuff.c:1046
Code: 5b 41 5e eb 21 e8 4c fb 5b f8 eb f1 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 41 57 41 56 <41> 54 53 49 89 ff 49 bc 00 00 00 00 00 fc ff df e8 17 fb 5b f8 49
RSP: 0018:ffffc90014e07b20 EFLAGS: 00000282
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff81718a3a
RDX: dffffc0000000000 RSI: ffffffff8baab660 RDI: ffff8880abb00640
RBP: ffff888064b49550 R08: ffffffff92c8f48f R09: 1ffffffff2591e91
R10: dffffc0000000000 R11: fffffbfff2591e92 R12: 0000000000000080
R13: ffff8880b2929720 R14: ffff8880abb00640 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffac46c000 CR3: 000000004349c000 CR4: 0000000000350ef0
Call Trace:
kfree_skb include/linux/skbuff.h:1244 [inline]
ieee80211_iface_work+0x270/0xd90 net/mac80211/iface.c:1645
cfg80211_wiphy_work+0x223/0x260 net/wireless/core.c:437
process_one_work kernel/workqueue.c:2633 [inline]
process_scheduled_works+0x915/0x1420 kernel/workqueue.c:2706
worker_thread+0xa5f/0x1000 kernel/workqueue.c:2787
kthread+0x2f1/0x390 kernel/kthread.c:388
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:243