INFO: task syz-executor.1:29514 blocked for more than 143 seconds.
Not tainted 6.8.0-rc4-next-20240214-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:23888 pid:29514 tgid:29510 ppid:5106 flags:0x00000006
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_preempt_disabled+0x13/0x30 kernel/sched/core.c:6876
rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common+0x1af/0x200 kernel/locking/rwsem.c:1306
filemap_invalidate_lock include/linux/fs.h:847 [inline]
blk_ioctl_zeroout block/ioctl.c:185 [inline]
blkdev_common_ioctl+0x1718/0x2880 block/ioctl.c:513
blkdev_ioctl+0x532/0x740 block/ioctl.c:627
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:904 [inline]
__se_sys_ioctl+0xfc/0x170 fs/ioctl.c:890
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7fcd6b27dda9
RSP: 002b:00007fcd6c0850c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fcd6b3ac120 RCX: 00007fcd6b27dda9
RDX: 0000000020000100 RSI: 000000000000127f RDI: 000000000000000a
RBP: 00007fcd6b2ca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fcd6b3ac120 R15: 00007ffefedbed68
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8e1315a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
#0: ffffffff8e1315a0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
#0: ffffffff8e1315a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
2 locks held by getty/4819:
#0: ffff88823bcaa8a0 (&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+0x6b5/0x1e10 drivers/tty/n_tty.c:2201
1 lock held by syz-executor.3/29374:
1 lock held by syz-executor.3/29377:
1 lock held by syz-executor.1/29514:
#0: ffff88801d1442c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:847 [inline]
#0: ffff88801d1442c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:185 [inline]
#0: ffff88801d1442c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1718/0x2880 block/ioctl.c:513
1 lock held by syz-executor.3/29605:
#0: ffff88801d1442c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:857 [inline]
#0: ffff88801d1442c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xfb/0x7a0 mm/readahead.c:225
1 lock held by syz-executor.3/29606:
#0: ffff88801d1442c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:857 [inline]
#0: ffff88801d1442c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xfb/0x7a0 mm/readahead.c:225
1 lock held by syz-executor.3/30330:
#0: ffff88801d1442c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:857 [inline]
#0: ffff88801d1442c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xfb/0x7a0 mm/readahead.c:225
1 lock held by syz-executor.3/30333:
#0: ffff88801d1442c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:857 [inline]
#0: ffff88801d1442c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xfb/0x7a0 mm/readahead.c:225
1 lock held by syz-executor.1/31160:
#0: ffff88801d1442c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:847 [inline]
#0: ffff88801d1442c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:185 [inline]
#0: ffff88801d1442c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1718/0x2880 block/ioctl.c:513
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.8.0-rc4-next-20240214-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+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+0xfb0/0xff0 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:242
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 414 Comm: kworker/u8:5 Not tainted 6.8.0-rc4-next-20240214-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:memcmp+0x169/0x1e0 lib/string.c:676
Code: 48 89 d5 e8 59 f0 8c f6 48 8b 34 24 48 89 ea e9 2f ff ff ff 4d 85 f6 74 6c 31 ed 49 8d 3c 2c 48 89 f8 48 c1 e8 03 0f b6 04 10 <84> c0 75 2b 41 0f b6 1c 2c 49 8d 3c 2f 48 89 f8 48 c1 e8 03 0f b6
RSP: 0018:ffffc9000316f268 EFLAGS: 00000a02
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88801f3f0000
RDX: dffffc0000000000 RSI: ffff8880a72230b0 RDI: ffffc9000316f5d2
RBP: 0000000000000002 R08: ffffffff8ac3ded1 R09: fffff5200062de78
R10: dffffc0000000000 R11: fffff5200062de78 R12: ffffc9000316f5d0
R13: dffffc0000000000 R14: 0000000000000006 R15: ffff8880a72230b0
FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c017f7a000 CR3: 0000000092e5a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
cmp_bss+0x4da/0xea0 net/wireless/scan.c:1405
rb_find_bss net/wireless/scan.c:1598 [inline]
__cfg80211_bss_update+0xda/0x20c0 net/wireless/scan.c:1856
cfg80211_inform_single_bss_frame_data net/wireless/scan.c:3180 [inline]
cfg80211_inform_bss_frame_data+0x116a/0x1d60 net/wireless/scan.c:3215
ieee80211_bss_info_update+0x8a5/0xbc0 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+0x1952/0x2d50 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:3146 [inline]
process_scheduled_works+0x9d7/0x1730 kernel/workqueue.c:3226
worker_thread+0x86d/0xd70 kernel/workqueue.c:3307
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