INFO: task syz-executor320:5025 blocked for more than 143 seconds.
Not tainted 6.5.0-rc3-syzkaller-00123-g57012c57536f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor320 state:D stack:26984 pid:5025 ppid:5021 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0x1873/0x48f0 kernel/sched/core.c:6710
schedule+0xc3/0x180 kernel/sched/core.c:6786
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6845
rwsem_down_write_slowpath+0xedd/0x13a0 kernel/locking/rwsem.c:1178
__down_write_common+0x1aa/0x200 kernel/locking/rwsem.c:1306
filemap_invalidate_lock include/linux/fs.h:816 [inline]
blkdev_fallocate+0x21b/0x440 block/fops.c:659
vfs_fallocate+0x551/0x6b0 fs/open.c:324
ksys_fallocate fs/open.c:347 [inline]
__do_sys_fallocate fs/open.c:355 [inline]
__se_sys_fallocate fs/open.c:353 [inline]
__x64_sys_fallocate+0xbd/0x100 fs/open.c:353
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fe63a595b29
RSP: 002b:00007fff5f235e78 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe63a595b29
RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000004
RBP: 00000000000f4240 R08: 00000000000000a0 R09: 00000000000000a0
R10: 0001000001002000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fff5f236098 R14: 00007fff5f235ea0 R15: 00007fff5f235e90
INFO: task syz-executor320:5027 blocked for more than 143 seconds.
Not tainted 6.5.0-rc3-syzkaller-00123-g57012c57536f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor320 state:D stack:25704 pid:5027 ppid:5026 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0x1873/0x48f0 kernel/sched/core.c:6710
schedule+0xc3/0x180 kernel/sched/core.c:6786
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6845
rwsem_down_write_slowpath+0xedd/0x13a0 kernel/locking/rwsem.c:1178
__down_write_common+0x1aa/0x200 kernel/locking/rwsem.c:1306
filemap_invalidate_lock include/linux/fs.h:816 [inline]
blkdev_fallocate+0x21b/0x440 block/fops.c:659
vfs_fallocate+0x551/0x6b0 fs/open.c:324
ksys_fallocate fs/open.c:347 [inline]
__do_sys_fallocate fs/open.c:355 [inline]
__se_sys_fallocate fs/open.c:353 [inline]
__x64_sys_fallocate+0xbd/0x100 fs/open.c:353
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fe63a595b29
RSP: 002b:00007fff5f235e78 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe63a595b29
RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000004
RBP: 00000000000f4240 R08: 00000000000000a0 R09: 00000000000000a0
R10: 0001000001002000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fff5f236098 R14: 00007fff5f235ea0 R15: 00007fff5f235e90
INFO: task syz-executor320:5028 blocked for more than 143 seconds.
Not tainted 6.5.0-rc3-syzkaller-00123-g57012c57536f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor320 state:D stack:26800 pid:5028 ppid:5023 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0x1873/0x48f0 kernel/sched/core.c:6710
schedule+0xc3/0x180 kernel/sched/core.c:6786
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6845
rwsem_down_write_slowpath+0xedd/0x13a0 kernel/locking/rwsem.c:1178
__down_write_common+0x1aa/0x200 kernel/locking/rwsem.c:1306
filemap_invalidate_lock include/linux/fs.h:816 [inline]
blkdev_fallocate+0x21b/0x440 block/fops.c:659
vfs_fallocate+0x551/0x6b0 fs/open.c:324
ksys_fallocate fs/open.c:347 [inline]
__do_sys_fallocate fs/open.c:355 [inline]
__se_sys_fallocate fs/open.c:353 [inline]
__x64_sys_fallocate+0xbd/0x100 fs/open.c:353
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fe63a595b29
RSP: 002b:00007fff5f235e78 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe63a595b29
RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000004
RBP: 00000000000f4240 R08: 00000000000000a0 R09: 00000000000000a0
R10: 0001000001002000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fff5f236098 R14: 00007fff5f235ea0 R15: 00007fff5f235e90
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8d328db0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:522
1 lock held by rcu_tasks_trace/14:
#0: ffffffff8d329170 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:522
1 lock held by khungtaskd/28:
#0: ffffffff8d328be0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by klogd/4460:
2 locks held by getty/4768:
#0: ffff888028e25098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900015c02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b1/0x1dc0 drivers/tty/n_tty.c:2187
2 locks held by syz-executor320/5024:
1 lock held by syz-executor320/5025:
#0: ffff88801aca3748 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:816 [inline]
#0: ffff88801aca3748 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x21b/0x440 block/fops.c:659
1 lock held by syz-executor320/5027:
#0: ffff88801aca3748 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:816 [inline]
#0: ffff88801aca3748 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x21b/0x440 block/fops.c:659
1 lock held by syz-executor320/5028:
#0: ffff88801aca3748 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:816 [inline]
#0: ffff88801aca3748 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x21b/0x440 block/fops.c:659
1 lock held by syz-executor320/5046:
#0: ffff88801aca3748 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:816 [inline]
#0: ffff88801aca3748 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x21b/0x440 block/fops.c:659
1 lock held by syz-executor320/5052:
#0: ffff88801aca3748 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:816 [inline]
#0: ffff88801aca3748 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x21b/0x440 block/fops.c:659
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.5.0-rc3-syzkaller-00123-g57012c57536f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x187/0x300 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+0xec2/0xf00 kernel/hung_task.c:379
kthread+0x2b8/0x350 kernel/kthread.c:389
ret_from_fork+0x2e/0x60 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296
RIP: 0000:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 4460 Comm: klogd Not tainted 6.5.0-rc3-syzkaller-00123-g57012c57536f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
RIP: 0010:__lock_acquire+0x13d/0x7f70
Code: 1a 48 89 d7 e8 64 5e 79 00 48 8b 94 24 80 00 00 00 49 b8 00 00 00 00 00 fc ff df 48 c7 c0 00 12 67 90 48 39 02 75 03 45 31 ed <44> 89 74 24 30 41 83 fc 01 77 38 44 89 e0 48 8d 5c c2 08 48 89 d8
RSP: 0018:ffffc9000315ef60 EFLAGS: 00000002
RAX: ffffffff90671200 RBX: 1ffff9200062be10 RCX: 0000000000000000
RDX: ffffffff9221efc0 RSI: 0000000000000000 RDI: ffffffff9221efc0
RBP: ffffc9000315f228 R08: dffffc0000000000 R09: 0000000000000001
R10: dffffc0000000000 R11: fffffbfff1d30bae R12: 0000000000000000
R13: 0000000000000001 R14: 0000000000000000 R15: ffff88807d690000
FS: 00007fdd5fc37380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005570dd105600 CR3: 000000001fd80000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x1e3/0x520 kernel/locking/lockdep.c:5761
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
__debug_check_no_obj_freed lib/debugobjects.c:1020 [inline]
debug_check_no_obj_freed+0xcc/0x420 lib/debugobjects.c:1063
free_pages_prepare mm/page_alloc.c:1167 [inline]
free_unref_page_prepare+0x241/0xa30 mm/page_alloc.c:2348
free_unref_page+0x37/0x3f0 mm/page_alloc.c:2443
discard_slab mm/slub.c:2108 [inline]
__unfreeze_partials+0x1dc/0x220 mm/slub.c:2647
put_cpu_partial+0x116/0x180 mm/slub.c:2723
__slab_free+0x2b6/0x390 mm/slub.c:3671
qlist_free_all+0x22/0x60 mm/kasan/quarantine.c:185
kasan_quarantine_reduce+0x14b/0x160 mm/kasan/quarantine.c:292
____kasan_kmalloc mm/kasan/common.c:340 [inline]
__kasan_kmalloc+0x23/0xb0 mm/kasan/common.c:383
kasan_kmalloc include/linux/kasan.h:196 [inline]
__do_kmalloc_node mm/slab_common.c:985 [inline]
__kmalloc_node_track_caller+0xb6/0x230 mm/slab_common.c:1005
kmalloc_reserve+0xfe/0x240 net/core/skbuff.c:575
__alloc_skb+0x1b1/0x420 net/core/skbuff.c:644
alloc_skb include/linux/skbuff.h:1289 [inline]
alloc_skb_with_frags+0xa8/0x750 net/core/skbuff.c:6233
sock_alloc_send_pskb+0x919/0xa50 net/core/sock.c:2782
unix_dgram_sendmsg+0x659/0x2070 net/unix/af_unix.c:1953
sock_sendmsg_nosec net/socket.c:725 [inline]
sock_sendmsg net/socket.c:748 [inline]
__sys_sendto+0x484/0x640 net/socket.c:2134
__do_sys_sendto net/socket.c:2146 [inline]
__se_sys_sendto net/socket.c:2142 [inline]
__x64_sys_sendto+0xde/0xf0 net/socket.c:2142
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fdd5fd999b5
Code: 8b 44 24 08 48 83 c4 28 48 98 c3 48 98 c3 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 26 45 31 c9 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 7a 48 8b 15 44 c4 0c 00 f7 d8 64 89 02 48 83
RSP: 002b:00007fff8cfdb548 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fdd5fd999b5
RDX: 000000000000003d RSI: 0000564580deed80 RDI: 0000000000000003
RBP: 0000564580dea910 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000013
R13: 00007fdd5ff27212 R14: 00007fff8cfdb648 R15: 0000000000000000
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.803 msecs