INFO: task syz-executor:5818 blocked for more than 143 seconds.
Not tainted 6.12.0-syzkaller-05480-gfcc79e1714e8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:23296 pid:5818 tgid:5818 ppid:5815 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0xe5a/0x5ae0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6848
io_schedule+0xbf/0x130 kernel/sched/core.c:7681
bit_wait_io+0x15/0xe0 kernel/sched/wait_bit.c:247
__wait_on_bit+0x62/0x180 kernel/sched/wait_bit.c:49
out_of_line_wait_on_bit+0xda/0x110 kernel/sched/wait_bit.c:64
wait_on_bit_io include/linux/wait_bit.h:105 [inline]
do_get_write_access+0x933/0x1270 fs/jbd2/transaction.c:1096
jbd2_journal_get_write_access+0x1d6/0x280 fs/jbd2/transaction.c:1245
__ext4_journal_get_write_access+0x6a/0x390 fs/ext4/ext4_jbd2.c:239
ext4_reserve_inode_write+0x13b/0x270 fs/ext4/inode.c:5830
__ext4_mark_inode_dirty+0x1a6/0x890 fs/ext4/inode.c:6004
ext4_dirty_inode+0xd9/0x130 fs/ext4/inode.c:6041
__mark_inode_dirty+0x1f6/0xe60 fs/fs-writeback.c:2515
generic_update_time+0xcf/0xf0 fs/inode.c:2113
inode_update_time fs/inode.c:2126 [inline]
__file_update_time fs/inode.c:2354 [inline]
file_update_time+0x17d/0x1c0 fs/inode.c:2384
ext4_page_mkwrite+0x368/0x1760 fs/ext4/inode.c:6159
do_page_mkwrite+0x177/0x380 mm/memory.c:3162
wp_page_shared mm/memory.c:3563 [inline]
do_wp_page+0xcbf/0x49d0 mm/memory.c:3713
handle_pte_fault mm/memory.c:5782 [inline]
__handle_mm_fault+0x1a93/0x2a10 mm/memory.c:5909
handle_mm_fault+0x3fa/0xaa0 mm/memory.c:6077
do_user_addr_fault+0x60d/0x13f0 arch/x86/mm/fault.c:1338
handle_page_fault arch/x86/mm/fault.c:1481 [inline]
exc_page_fault+0x5c/0xc0 arch/x86/mm/fault.c:1539
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7facef056465
RSP: 002b:00007ffe57f2bad0 EFLAGS: 00010202
RAX: 00007face79fc96c RBX: 00007ffe57f2bbe0 RCX: 0000000000000000
RDX: 00007face79fc968 RSI: 0000000000000008 RDI: 00007ffe57f2bbe0
RBP: 00000000000003e6 R08: 0000000000000000 R09: 0000000000000000
R10: 00007ffe57f2bbc0 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000003694 R14: ffffffffffffc96c R15: 0000000000003694
INFO: task syz.6.4381:23553 blocked for more than 143 seconds.
Not tainted 6.12.0-syzkaller-05480-gfcc79e1714e8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.6.4381 state:D stack:27856 pid:23553 tgid:23553 ppid:23197 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0xe5a/0x5ae0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6848
io_schedule+0xbf/0x130 kernel/sched/core.c:7681
bit_wait_io+0x15/0xe0 kernel/sched/wait_bit.c:247
__wait_on_bit+0x62/0x180 kernel/sched/wait_bit.c:49
out_of_line_wait_on_bit+0xda/0x110 kernel/sched/wait_bit.c:64
wait_on_bit_io include/linux/wait_bit.h:105 [inline]
do_get_write_access+0x933/0x1270 fs/jbd2/transaction.c:1096
jbd2_journal_get_write_access+0x1d6/0x280 fs/jbd2/transaction.c:1245
__ext4_journal_get_write_access+0x6a/0x390 fs/ext4/ext4_jbd2.c:239
ext4_reserve_inode_write+0x13b/0x270 fs/ext4/inode.c:5830
__ext4_mark_inode_dirty+0x1a6/0x890 fs/ext4/inode.c:6004
ext4_dirty_inode+0xd9/0x130 fs/ext4/inode.c:6041
__mark_inode_dirty+0x1f6/0xe60 fs/fs-writeback.c:2515
generic_update_time+0xcf/0xf0 fs/inode.c:2113
inode_update_time fs/inode.c:2126 [inline]
__file_update_time fs/inode.c:2354 [inline]
file_update_time+0x17d/0x1c0 fs/inode.c:2384
ext4_page_mkwrite+0x368/0x1760 fs/ext4/inode.c:6159
do_page_mkwrite+0x177/0x380 mm/memory.c:3162
do_shared_fault mm/memory.c:5373 [inline]
do_fault mm/memory.c:5435 [inline]
do_pte_missing+0x29e/0x3e70 mm/memory.c:3965
handle_pte_fault mm/memory.c:5766 [inline]
__handle_mm_fault+0x100a/0x2a10 mm/memory.c:5909
handle_mm_fault+0x3fa/0xaa0 mm/memory.c:6077
do_user_addr_fault+0x60d/0x13f0 arch/x86/mm/fault.c:1338
handle_page_fault arch/x86/mm/fault.c:1481 [inline]
exc_page_fault+0x5c/0xc0 arch/x86/mm/fault.c:1539
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f953a05d536
RSP: 002b:00007fffe50b46a0 EFLAGS: 00010202
RAX: 0000000000002008 RBX: 00007f953ae65720 RCX: 0000000000000000
RDX: 0000001b2ca1e000 RSI: 0000000000000008 RDI: 00007f953ae65720
RBP: ffffffff81561a7e R08: 00007f95397ff050 R09: 00007f953a322000
R10: 00007f95397ff008 R11: 0000000000000003 R12: 0000000000000c14
R13: 00007f953a336038 R14: 000000000000009d R15: ffffffffffffe000
INFO: task syz.4.4385:23564 blocked for more than 144 seconds.
Not tainted 6.12.0-syzkaller-05480-gfcc79e1714e8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.4385 state:D stack:25824 pid:23564 tgid:23564 ppid:23264 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0xe5a/0x5ae0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6848
io_schedule+0xbf/0x130 kernel/sched/core.c:7681
bit_wait_io+0x15/0xe0 kernel/sched/wait_bit.c:247
__wait_on_bit+0x62/0x180 kernel/sched/wait_bit.c:49
out_of_line_wait_on_bit+0xda/0x110 kernel/sched/wait_bit.c:64
wait_on_bit_io include/linux/wait_bit.h:105 [inline]
do_get_write_access+0x933/0x1270 fs/jbd2/transaction.c:1096
jbd2_journal_get_write_access+0x1d6/0x280 fs/jbd2/transaction.c:1245
__ext4_journal_get_write_access+0x6a/0x390 fs/ext4/ext4_jbd2.c:239
ext4_reserve_inode_write+0x13b/0x270 fs/ext4/inode.c:5830
__ext4_mark_inode_dirty+0x1a6/0x890 fs/ext4/inode.c:6004
ext4_dirty_inode+0xd9/0x130 fs/ext4/inode.c:6041
__mark_inode_dirty+0x1f6/0xe60 fs/fs-writeback.c:2515
generic_update_time+0xcf/0xf0 fs/inode.c:2113
inode_update_time fs/inode.c:2126 [inline]
__file_update_time fs/inode.c:2354 [inline]
file_update_time+0x17d/0x1c0 fs/inode.c:2384
ext4_page_mkwrite+0x368/0x1760 fs/ext4/inode.c:6159
do_page_mkwrite+0x177/0x380 mm/memory.c:3162
wp_page_shared mm/memory.c:3563 [inline]
do_wp_page+0xcbf/0x49d0 mm/memory.c:3713
handle_pte_fault mm/memory.c:5782 [inline]
__handle_mm_fault+0x1a93/0x2a10 mm/memory.c:5909
handle_mm_fault+0x3fa/0xaa0 mm/memory.c:6077
do_user_addr_fault+0x60d/0x13f0 arch/x86/mm/fault.c:1338
handle_page_fault arch/x86/mm/fault.c:1481 [inline]
exc_page_fault+0x5c/0xc0 arch/x86/mm/fault.c:1539
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f672905ccd7
RSP: 002b:00007fffcd370cf0 EFLAGS: 00010216
RAX: 0000001b30e09374 RBX: 00007f6729e65720 RCX: 0000000000000002
RDX: 0000001b30e09370 RSI: 0000000000000004 RDI: 00007f6729e65720
RBP: fffffffffffe9374 R08: 00007f67293361f8 R09: 00007f6729322000
R10: 00007f6727ffb008 R11: 0000000000000017 R12: 0000000000016c8c
R13: 0000000000000000 R14: 0000000000000000 R15: 00000000000058b6
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8e1bb380 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e1bb380 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e1bb380 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x7f/0x390 kernel/locking/lockdep.c:6744
3 locks held by kworker/u8:8/2975:
1 lock held by syslogd/5190:
#0: ffff8880b863ed58 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:606 [inline]
#0: ffff8880b863ed58 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x7e/0x130 kernel/sched/core.c:591
2 locks held by getty/5588:
#0: ffff888036fb20a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc90002fc62f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0xfba/0x1480 drivers/tty/n_tty.c:2211
3 locks held by syz-executor/5818:
#0: ffff888020efed18 (&vma->vm_lock->lock){++++}-{4:4}, at: vma_start_read include/linux/mm.h:716 [inline]
#0: ffff888020efed18 (&vma->vm_lock->lock){++++}-{4:4}, at: lock_vma_under_rcu+0x13e/0x980 mm/memory.c:6243
#1: ffff88803426a518 (sb_pagefaults){.+.+}-{0:0}, at: do_page_mkwrite+0x177/0x380 mm/memory.c:3162
#2: ffff88803426e958 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xf6c/0x1430 fs/jbd2/transaction.c:448
3 locks held by kworker/u8:18/22943:
3 locks held by syz.6.4381/23553:
#0: ffff88804de0d070 (&vma->vm_lock->lock){++++}-{4:4}, at: vma_start_read include/linux/mm.h:716 [inline]
#0: ffff88804de0d070 (&vma->vm_lock->lock){++++}-{4:4}, at: lock_vma_under_rcu+0x13e/0x980 mm/memory.c:6243
#1: ffff88803426a518 (sb_pagefaults){.+.+}-{0:0}, at: do_page_mkwrite+0x177/0x380 mm/memory.c:3162
#2: ffff88803426e958 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xf6c/0x1430 fs/jbd2/transaction.c:448
3 locks held by syz.4.4385/23564:
#0: ffff8880301294a8 (&vma->vm_lock->lock){++++}-{4:4}, at: vma_start_read include/linux/mm.h:716 [inline]
#0: ffff8880301294a8 (&vma->vm_lock->lock){++++}-{4:4}, at: lock_vma_under_rcu+0x13e/0x980 mm/memory.c:6243
#1: ffff88803426a518 (sb_pagefaults){.+.+}-{0:0}, at: do_page_mkwrite+0x177/0x380 mm/memory.c:3162
#2: ffff88803426e958 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xf6c/0x1430 fs/jbd2/transaction.c:448
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.12.0-syzkaller-05480-gfcc79e1714e8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
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:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xf0c/0x1240 kernel/hung_task.c:379
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 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: 22943 Comm: kworker/u8:18 Not tainted 6.12.0-syzkaller-05480-gfcc79e1714e8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:mark_lock+0x6/0xc60 kernel/locking/lockdep.c:4710
Code: ff 48 c7 c7 70 e0 60 90 e8 b7 12 86 00 e9 cb fe ff ff 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 48 89 e5 41 57 <41> 56 41 89 d6 48 ba 00 00 00 00 00 fc ff df 41 55 41 54 53 48 83
RSP: 0018:ffffc9000c50f5e0 EFLAGS: 00000002
RAX: 0000000000000004 RBX: 0000000000000002 RCX: 1ffffffff2dd8039
RDX: 0000000000000006 RSI: ffff88802a590b30 RDI: ffff88802a590000
RBP: ffffc9000c50f5e8 R08: 0000000000000000 R09: fffffbfff2dcd7b2
R10: ffffffff96e6bd97 R11: 0000000000000003 R12: ffff88802a590000
R13: dffffc0000000000 R14: ffff88802a590ae0 R15: ffff8880b8743020
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055556606a5c8 CR3: 000000000df7e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
mark_held_locks+0x9f/0xe0 kernel/locking/lockdep.c:4321
__trace_hardirqs_on_caller kernel/locking/lockdep.c:4347 [inline]
lockdep_hardirqs_on_prepare+0x27a/0x420 kernel/locking/lockdep.c:4406
trace_hardirqs_on+0x36/0x40 kernel/trace/trace_preemptirq.c:61
___slab_alloc+0x85a/0x1880 mm/slub.c:3709
__slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3908
__slab_alloc_node mm/slub.c:3961 [inline]
slab_alloc_node mm/slub.c:4122 [inline]
__do_kmalloc_node mm/slub.c:4263 [inline]
__kmalloc_noprof+0x367/0x400 mm/slub.c:4276
kmalloc_noprof include/linux/slab.h:883 [inline]
kzalloc_noprof include/linux/slab.h:1015 [inline]
ieee802_11_parse_elems_full+0xea/0x1680 net/mac80211/parse.c:958
ieee802_11_parse_elems_crc net/mac80211/ieee80211_i.h:2386 [inline]
ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2393 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1576 [inline]
ieee80211_ibss_rx_queued_mgmt+0xc4f/0x2f50 net/mac80211/ibss.c:1607
ieee80211_iface_process_skb net/mac80211/iface.c:1616 [inline]
ieee80211_iface_work+0xc0b/0xf00 net/mac80211/iface.c:1670
cfg80211_wiphy_work+0x3d9/0x550 net/wireless/core.c:440
process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244