INFO: task syz.1.18:5381 blocked for more than 145 seconds.
Not tainted 6.12.0-rc4-syzkaller-00047-gc2ee9f594da8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.18 state:D stack:25120 pid:5381 tgid:5381 ppid:5236 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0xe55/0x5730 kernel/sched/core.c:6690
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6782
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6839
rwsem_down_read_slowpath+0x61e/0xb20 kernel/locking/rwsem.c:1084
__down_read_common kernel/locking/rwsem.c:1248 [inline]
__down_read kernel/locking/rwsem.c:1261 [inline]
down_read+0x124/0x330 kernel/locking/rwsem.c:1526
filemap_invalidate_lock_shared include/linux/fs.h:870 [inline]
page_cache_ra_unbounded+0x173/0x6c0 mm/readahead.c:226
do_page_cache_ra mm/readahead.c:320 [inline]
page_cache_ra_order+0x7d9/0xc90 mm/readahead.c:520
do_sync_mmap_readahead mm/filemap.c:3202 [inline]
filemap_fault+0x148d/0x2820 mm/filemap.c:3343
__do_fault+0x10a/0x490 mm/memory.c:4871
do_cow_fault mm/memory.c:5316 [inline]
do_fault mm/memory.c:5422 [inline]
do_pte_missing+0x98a/0x3e50 mm/memory.c:3965
handle_pte_fault mm/memory.c:5755 [inline]
__handle_mm_fault+0x100a/0x2a10 mm/memory.c:5898
handle_mm_fault+0x3fa/0xaa0 mm/memory.c:6066
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: 0033:0x7f856ee45163
RSP: 002b:00007ffe23c9e2f0 EFLAGS: 00010246
RAX: 0000000020000240 RBX: 0000000000000008 RCX: 0000000000000000
RDX: 0000000000008800 RSI: 0000000000000000 RDI: 00005555732fc3c8
RBP: 00007ffe23c9e408 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000002 R12: 0000000000016ccc
R13: 00007ffe23c9e430 R14: 0000000000000032 R15: fffffffffffffffe
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8e1b8380 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e1b8380 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e1b8380 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x7f/0x390 kernel/locking/lockdep.c:6720
5 locks held by kworker/u8:2/35:
#0: ffff88801beeb148 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204
#1: ffffc90000ab7d80 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
#2: ffffffff8feccb10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbb/0xb40 net/core/net_namespace.c:580
#3: ffffffff8fee24a8 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0x8c/0xae0 net/core/dev.c:11934
#4: ffffffff8e05b990 (cpu_hotplug_lock){++++}-{0:0}, at: netif_reset_xps_queues net/core/dev.c:2513 [inline]
#4: ffffffff8e05b990 (cpu_hotplug_lock){++++}-{0:0}, at: netif_reset_xps_queues+0x2b/0x80 net/core/dev.c:2507
3 locks held by kworker/u8:4/61:
#0: ffff88801b089148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204
#1: ffffc900015c7d80 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
#2: ffffffff8fee24a8 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0x51/0xc0 net/core/link_watch.c:276
3 locks held by kworker/u8:6/2976:
#0: ffff88814b7b8148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204
#1: ffffc90009c5fd80 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
#2: ffffffff8fee24a8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xcf/0x14d0 net/ipv6/addrconf.c:4196
1 lock held by dhcpcd/4890:
#0: ffffffff8fee24a8 (rtnl_mutex){+.+.}-{3:3}, at: devinet_ioctl+0x26e/0x1e20 net/ipv4/devinet.c:1112
2 locks held by getty/4980:
#0: ffff88802ee6b0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfba/0x1480 drivers/tty/n_tty.c:2211
1 lock held by syz.3.15/5364:
#0: ffff888148c859c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:860 [inline]
#0: ffff888148c859c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x1da/0x390 block/fops.c:808
1 lock held by syz.1.18/5381:
#0: ffff888148c859c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:870 [inline]
#0: ffff888148c859c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0x173/0x6c0 mm/readahead.c:226
6 locks held by kworker/u8:13/5481:
1 lock held by syz-executor/5777:
#0: ffffffff8fee24a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fee24a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6672
1 lock held by syz-executor/5859:
#0: ffffffff8fee24a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fee24a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6672
1 lock held by syz-executor/5900:
#0: ffffffff8fee24a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fee24a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6672
1 lock held by syz-executor/6058:
#0: ffffffff8fee24a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fee24a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6672
1 lock held by syz.4.66/6064:
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.12.0-rc4-syzkaller-00047-gc2ee9f594da8 #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+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: 6062 Comm: udevd Not tainted 6.12.0-rc4-syzkaller-00047-gc2ee9f594da8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__schedule+0x305/0x5730 kernel/sched/core.c:6593
Code: db 0f 85 46 1a 00 00 48 8d 78 18 e8 65 8b 46 f6 49 8d 9f 30 0b 00 00 48 89 da 89 85 60 ff ff ff 48 b8 00 00 00 00 00 fc ff df <48> c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e d9 52 00 00 41 d1
RSP: 0018:ffffc9000340f820 EFLAGS: 00000086
RAX: dffffc0000000000 RBX: ffff8880b873f9b0 RCX: ffffffff8132bd8e
RDX: ffff8880b873f9b0 RSI: ffffffff8b6cd3c0 RDI: ffffffff8bd1aa80
RBP: ffffc9000340f9b8 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff8b2384a1
R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880b873ee80
FS: 00007f36485edc80(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3648aac866 CR3: 0000000051248000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7012
irqentry_exit+0x36/0x90 kernel/entry/common.c:354
asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707
RIP: 0010:stack_trace_consume_entry+0x5a/0x170 kernel/stacktrace.c:87
Code: 00 00 48 8d 7b 08 8b 6b 10 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e ad 00 00 00 <31> c0 3b 6b 08 0f 83 81 00 00 00 48 8d 7b 0c 48 b8 00 00 00 00 00
RSP: 0018:ffffc9000340fa90 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffc9000340fb70 RCX: 0000000000000000
RDX: 1ffff92000681f6f RSI: ffffffff8b2200dd RDI: ffffc9000340fb78
RBP: 0000000000000006 R08: ffffc9000340fae4 R09: ffffffff91003176
R10: ffffc9000340fab0 R11: 000000000000ffad R12: ffffffff81794ad0
R13: ffffc9000340fb70 R14: 0000000000000000 R15: ffff888027e9bc00
arch_stack_walk+0x86/0x100 arch/x86/kernel/stacktrace.c:27
stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
__kasan_record_aux_stack+0xba/0xd0 mm/kasan/generic.c:541
slab_free_hook mm/slub.c:2303 [inline]
slab_free mm/slub.c:4579 [inline]
kmem_cache_free+0x305/0x4b0 mm/slub.c:4681
file_free fs/file_table.c:73 [inline]
__fput+0x684/0xb60 fs/file_table.c:444
__fput_sync+0x45/0x50 fs/file_table.c:516
__do_sys_close fs/open.c:1567 [inline]
__se_sys_close fs/open.c:1552 [inline]
__x64_sys_close+0x86/0x100 fs/open.c:1552
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f36487170a8
Code: 48 8b 05 83 9d 0d 00 64 c7 00 16 00 00 00 83 c8 ff 48 83 c4 20 5b c3 64 8b 04 25 18 00 00 00 85 c0 75 20 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 5b 48 8b 15 51 9d 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffe3dac6b28 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 00007f36485edae0 RCX: 00007f36487170a8
RDX: 0000000000000080 RSI: 00007ffe3dac6c58 RDI: 0000000000000004
RBP: 0000000000000000 R08: 0000000000000007 R09: 88f5bda10e65c3d7
R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe3dac6ba8 R14: 0000000000000001 R15: 000055aeda3472c0