INFO: task syz.8.1129:3812 blocked for more than 122 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.8.1129 state:D stack:0 pid:3812 tgid:3811 ppid:3739 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5945 [inline]
__schedule+0x1322/0x1df0 kernel/sched/core.c:7791
__schedule_loop kernel/sched/core.c:7872 [inline]
schedule+0xc6/0x240 kernel/sched/core.c:7887
schedule_preempt_disabled+0x14/0x30 kernel/sched/core.c:7944
rwsem_down_read_slowpath+0x6d1/0x1460 kernel/locking/rwsem.c:1136
__down_read_common kernel/locking/rwsem.c:1317 [inline]
__down_read kernel/locking/rwsem.c:1330 [inline]
down_read+0x8f/0xe0 kernel/locking/rwsem.c:1607
__super_lock fs/super.c:59 [inline]
super_lock+0x231/0x300 fs/super.c:121
super_lock_shared fs/super.c:140 [inline]
iterate_supers+0x8a/0x560 fs/super.c:934
quota_sync_all fs/quota/quota.c:69 [inline]
__do_sys_quotactl fs/quota/quota.c:938 [inline]
__se_sys_quotactl+0x308/0x7d0 fs/quota/quota.c:917
__x64_sys_quotactl+0x9f/0xc0 fs/quota/quota.c:917
x64_sys_call+0x2818/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:180
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x58/0xf0 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f19bd38ebe9
RSP: 002b:00007f19be295038 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3
RAX: ffffffffffffffda RBX: 00007f19bd5c5fa0 RCX: 00007f19bd38ebe9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff80000101
RBP: 00007f19bd411e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f19bd5c6038 R14: 00007f19bd5c5fa0 R15: 00007ffc698ab5c8
INFO: task syz.8.1129:3815 blocked for more than 123 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.8.1129 state:D stack:0 pid:3815 tgid:3811 ppid:3739 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5945 [inline]
__schedule+0x1322/0x1df0 kernel/sched/core.c:7791
__schedule_loop kernel/sched/core.c:7872 [inline]
schedule+0xc6/0x240 kernel/sched/core.c:7887
schedule_preempt_disabled+0x14/0x30 kernel/sched/core.c:7944
rwsem_down_read_slowpath+0x6d1/0x1460 kernel/locking/rwsem.c:1136
__down_read_common kernel/locking/rwsem.c:1317 [inline]
__down_read kernel/locking/rwsem.c:1330 [inline]
down_read+0x8f/0xe0 kernel/locking/rwsem.c:1607
__super_lock fs/super.c:59 [inline]
super_lock+0x231/0x300 fs/super.c:121
super_lock_shared fs/super.c:140 [inline]
iterate_supers+0x8a/0x560 fs/super.c:934
quota_sync_all fs/quota/quota.c:69 [inline]
__do_sys_quotactl fs/quota/quota.c:938 [inline]
__se_sys_quotactl+0x308/0x7d0 fs/quota/quota.c:917
__x64_sys_quotactl+0x9f/0xc0 fs/quota/quota.c:917
x64_sys_call+0x2818/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:180
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x58/0xf0 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f19bd38ebe9
RSP: 002b:00007f19be274038 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3
RAX: ffffffffffffffda RBX: 00007f19bd5c6090 RCX: 00007f19bd38ebe9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff80000100
RBP: 00007f19bd411e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f19bd5c6128 R14: 00007f19bd5c6090 R15: 00007ffc698ab5c8
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 37 Comm: khungtaskd Not tainted syzkaller #0 73b2ef142dafea13a051d13948dec704a9c677a1
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Call Trace:
__dump_stack+0x21/0x30 lib/dump_stack.c:94
dump_stack_lvl+0x10c/0x190 lib/dump_stack.c:120
dump_stack+0x19/0x20 lib/dump_stack.c:129
nmi_cpu_backtrace+0x2bf/0x2d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x142/0x2c0 lib/nmi_backtrace.c:62
arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:41
trigger_all_cpu_backtrace include/linux/nmi.h:158 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:267 [inline]
watchdog+0xd8f/0xed0 kernel/hung_task.c:423
kthread+0x2c7/0x370 kernel/kthread.c:389
ret_from_fork+0x64/0xa0 arch/x86/kernel/process.c:153
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: 46 Comm: kworker/1:1 Not tainted syzkaller #0 73b2ef142dafea13a051d13948dec704a9c677a1
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Workqueue: wg-crypt-wg2 wg_packet_decrypt_worker
RIP: 0010:chacha_permute+0x36c/0xe20 lib/crypto/chacha.c:31
Code: f3 41 89 f7 c1 c3 10 8b 75 c0 01 ce 89 75 c0 41 31 f3 41 c1 c3 0c 8b 75 c4 44 01 e6 89 75 c4 31 f2 c1 c2 0c 8b 7d a0 44 01 ef <41> 31 fe 41 c1 c6 0c 8b 75 a4 01 de 31 f0 c1 c0 0c 45 01 da 44 31
RSP: 0018:ffffc900002ff028 EFLAGS: 00000a96
RAX: 000000005ac14847 RBX: 0000000052905ce8 RCX: 00000000cc975f05
RDX: 00000000829f74ac RSI: 0000000040e3d12c RDI: 0000000083468169
RBP: ffffc900002ff190 R08: 00000000683a02b1 R09: 000000009fd72949
R10: 00000000a38dcc00 R11: 00000000364a0517 R12: 0000000025811ca2
R13: 0000000036ce10df R14: 000000005aa81f96 R15: 00000000be578ff6
FS: 0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000007038 CR3: 000000015f118000 CR4: 00000000003526b0
Call Trace:
chacha_block_generic+0xae/0xdb0 lib/crypto/chacha.c:83
chacha_crypt_generic+0x850/0x8b0 lib/crypto/libchacha.c:29
chacha_crypt_arch+0xaa/0xe0 arch/x86/crypto/chacha_glue.c:147
chacha_crypt include/crypto/chacha.h:100 [inline]
chacha20_crypt include/crypto/chacha.h:108 [inline]
chacha20poly1305_crypt_sg_inplace+0x3e5/0xb60 lib/crypto/chacha20poly1305.c:245
chacha20poly1305_decrypt_sg_inplace+0x60/0x90 lib/crypto/chacha20poly1305.c:351
decrypt_packet drivers/net/wireguard/receive.c:278 [inline]
wg_packet_decrypt_worker+0x5ab/0xcd0 drivers/net/wireguard/receive.c:501
process_one_work kernel/workqueue.c:3238 [inline]
process_scheduled_works+0x7d5/0x1020 kernel/workqueue.c:3319
worker_thread+0xc58/0x1250 kernel/workqueue.c:3400
kthread+0x2c7/0x370 kernel/kthread.c:389
ret_from_fork+0x64/0xa0 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244