INFO: task syz.1.750:9214 blocked for more than 430 seconds.
      Not tainted 6.12.0-rc4-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.750       state:D stack:0     pid:9214  tgid:9214  ppid:8020   flags:0x00000005
Call trace: 
[<819bbdfc>] (__schedule) from [<819bca4c>] (__schedule_loop kernel/sched/core.c:6767 [inline])
[<819bbdfc>] (__schedule) from [<819bca4c>] (schedule+0x2c/0xfc kernel/sched/core.c:6782)
 r10:853e3000 r9:845e9200 r8:843a91a8 r7:dfe95e58 r6:dfe95eb0 r5:843a91a8
 r4:8502a400
[<819bca20>] (schedule) from [<806c41a0>] (request_wait_answer fs/fuse/dev.c:464 [inline])
[<819bca20>] (schedule) from [<806c41a0>] (__fuse_request_send fs/fuse/dev.c:478 [inline])
[<819bca20>] (schedule) from [<806c41a0>] (__fuse_simple_request+0x330/0x4ec fs/fuse/dev.c:572)
 r5:843a91a8 r4:843a9150
[<806c3e70>] (__fuse_simple_request) from [<806cbf30>] (fuse_simple_request fs/fuse/fuse_i.h:1156 [inline])
[<806c3e70>] (__fuse_simple_request) from [<806cbf30>] (fuse_flush+0x19c/0x1d8 fs/fuse/file.c:542)
 r9:84c1cf80 r8:84132d80 r7:855aac80 r6:84bd5600 r5:84c1cf00 r4:853e3000
[<806cbd94>] (fuse_flush) from [<80510434>] (filp_flush+0x38/0x7c fs/open.c:1527)
 r9:8502a400 r8:0000001e r7:84bd5640 r6:84bd5600 r5:853e3000 r4:853e3000
[<805103fc>] (filp_flush) from [<8051048c>] (filp_close+0x14/0x28 fs/open.c:1540)
 r7:84bd5640 r6:84bd5600 r5:853e3000 r4:00000005
[<80510478>] (filp_close) from [<8053ec64>] (__range_close fs/file.c:703 [inline])
[<80510478>] (filp_close) from [<8053ec64>] (__close_range+0x154/0x1c0 fs/file.c:760)
 r5:00000000 r4:00000005
[<8053eb10>] (__close_range) from [<80513688>] (__do_sys_close_range fs/open.c:1593 [inline])
[<8053eb10>] (__close_range) from [<80513688>] (sys_close_range+0x10/0x14 fs/open.c:1590)
 r10:000001b4 r9:8502a400 r8:8020029c r7:000001b4 r6:00000000 r5:00000000
 r4:00000000
[<80513678>] (sys_close_range) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67)
Exception stack(0xdfe95fa8 to 0xdfe95ff0)
5fa0:                   00000000 00000000 00000003 0000001e 00000000 7e869938
5fc0: 00000000 00000000 00000000 000001b4 00000000 002862c4 00000000 ffffffff
5fe0: 7e869838 7e869828 00024234 00132ec0
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 32 Comm: khungtaskd Not tainted 6.12.0-rc4-syzkaller #0
Hardware name: ARM-Versatile Express
Call trace: 
[<81999930>] (dump_backtrace) from [<81999a2c>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:00000000 r6:00000013 r5:60000093 r4:8203d814
[<81999a14>] (show_stack) from [<819b7ee4>] (__dump_stack lib/dump_stack.c:94 [inline])
[<81999a14>] (show_stack) from [<819b7ee4>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:120)
[<819b7e74>] (dump_stack_lvl) from [<819b7f08>] (dump_stack+0x18/0x1c lib/dump_stack.c:129)
 r5:00000000 r4:00000001
[<819b7ef0>] (dump_stack) from [<81986bf0>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113)
[<81986a90>] (nmi_cpu_backtrace) from [<81986d3c>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62)
 r7:00000000 r6:8260c5d0 r5:8261af0c r4:ffffffff
[<81986c0c>] (nmi_trigger_cpumask_backtrace) from [<802103e8>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:851)
 r9:00019d44 r8:828b6cf8 r7:8260c730 r6:00007f43 r5:8261b4c8 r4:84b61d1c
[<802103d0>] (arch_trigger_cpumask_backtrace) from [<80358220>] (trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline])
[<802103d0>] (arch_trigger_cpumask_backtrace) from [<80358220>] (check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline])
[<802103d0>] (arch_trigger_cpumask_backtrace) from [<80358220>] (watchdog+0x498/0x5b8 kernel/hung_task.c:379)
[<80357d88>] (watchdog) from [<8026fc94>] (kthread+0x104/0x134 kernel/kthread.c:389)
 r10:00000000 r9:df819e58 r8:82cd0980 r7:00000000 r6:80357d88 r5:82e46c00
 r4:82fa3440
[<8026fb90>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdf8e1fb0 to 0xdf8e1ff8)
1fa0:                                     00000000 00000000 00000000 00000000
1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026fb90 r4:82fa3440
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 7886 Comm: syz.1.596 Not tainted 6.12.0-rc4-syzkaller #0
Hardware name: ARM-Versatile Express
PC is at debug_smp_processor_id+0x20/0x24 lib/smp_processor_id.c:61
LR is at debug_smp_processor_id+0x20/0x24 lib/smp_processor_id.c:60
pc : [<819b94e0>]    lr : [<819b94e0>]    psr: 20000013
sp : df805e30  ip : df805e30  fp : df805e3c
r10: ddde50c8  r9 : 00000040  r8 : 00000000
r7 : 00000000  r6 : 00000000  r5 : ddde51b0  r4 : 00000001
r3 : 00000101  r2 : df805ed0  r1 : 8203d814  r0 : 00000001
Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
Control: 30c5387d  Table: 85166080  DAC: 00000000
Call trace: frame pointer underflow
[<819b94c0>] (debug_smp_processor_id) from [<814ba2dc>] (process_backlog+0xb0/0x17c net/core/dev.c:6118)
[<814ba22c>] (process_backlog) from [<814bb1d8>] (__napi_poll+0x34/0x240 net/core/dev.c:6775)
 r10:ddde50c0 r9:ddde5300 r8:df805ed0 r7:df805ecb r6:00000040 r5:ddde51b0
 r4:00000001
[<814bb1a4>] (__napi_poll) from [<814bba4c>] (napi_poll net/core/dev.c:6844 [inline])
[<814bb1a4>] (__napi_poll) from [<814bba4c>] (net_rx_action+0x358/0x440 net/core/dev.c:6966)
 r9:ddde5300 r8:df805ed0 r7:0000012c r6:00019d49 r5:ddde51b0 r4:00000000
[<814bb6f4>] (net_rx_action) from [<8024b524>] (handle_softirqs+0x158/0x464 kernel/softirq.c:554)
 r10:00000082 r9:8502b000 r8:00000101 r7:00400040 r6:00000003 r5:00000002
 r4:8260408c
[<8024b3cc>] (handle_softirqs) from [<802012d0>] (__do_softirq+0x14/0x18 kernel/softirq.c:588)
 r10:dff21d4c r9:dff21ee0 r8:00000000 r7:807a1c6c r6:833a5b80 r5:00000001
 r4:60000013
[<802012bc>] (__do_softirq) from [<80208800>] (____do_softirq+0x10/0x14 arch/arm/kernel/irq.c:77)
[<802087f0>] (____do_softirq) from [<81968dc4>] (call_with_stack+0x1c/0x20 arch/arm/lib/call_with_stack.S:40)
[<81968da8>] (call_with_stack) from [<8020883c>] (do_softirq_own_stack+0x38/0x3c arch/arm/kernel/irq.c:82)
[<80208804>] (do_softirq_own_stack) from [<8024ba3c>] (do_softirq kernel/softirq.c:455 [inline])
[<80208804>] (do_softirq_own_stack) from [<8024ba3c>] (do_softirq+0x5c/0x64 kernel/softirq.c:442)
[<8024b9e0>] (do_softirq) from [<8024bb10>] (__local_bh_enable_ip+0xcc/0xd0 kernel/softirq.c:382)
 r5:00000001 r4:8502b000
[<8024ba44>] (__local_bh_enable_ip) from [<819c5114>] (__raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline])
[<8024ba44>] (__local_bh_enable_ip) from [<819c5114>] (_raw_spin_unlock_bh+0x34/0x38 kernel/locking/spinlock.c:210)
 r5:855d50ec r4:855d5000
[<819c50e0>] (_raw_spin_unlock_bh) from [<8148c120>] (spin_unlock_bh include/linux/spinlock.h:396 [inline])
[<819c50e0>] (_raw_spin_unlock_bh) from [<8148c120>] (release_sock+0x84/0xbc net/core/sock.c:3635)
[<8148c09c>] (release_sock) from [<807a1f9c>] (skcipher_recvmsg+0x330/0x4c8 crypto/algif_skcipher.c:242)
 r5:855d5000 r4:dff21ee0
[<807a1c6c>] (skcipher_recvmsg) from [<81483d30>] (sock_recvmsg_nosec net/socket.c:1051 [inline])
[<807a1c6c>] (skcipher_recvmsg) from [<81483d30>] (____sys_recvmsg+0x160/0x184 net/socket.c:2824)
 r10:dff21d4c r9:00000000 r8:00000000 r7:807a1c6c r6:833a5b80 r5:20a49060
 r4:dff21ee0
[<81483bd0>] (____sys_recvmsg) from [<81486e40>] (___sys_recvmsg+0x88/0xbc net/socket.c:2868)
 r10:b5403587 r9:8502b000 r8:833a5b80 r7:00000000 r6:20a49060 r5:dff21ee0
 r4:00000000
[<81486db8>] (___sys_recvmsg) from [<81486f74>] (do_recvmmsg+0x100/0x2d0 net/socket.c:2962)
 r8:00000000 r7:00000000 r6:00052455 r5:20a49060 r4:dff21ec0
[<81486e74>] (do_recvmmsg) from [<81487960>] (__sys_recvmmsg net/socket.c:3041 [inline])
[<81486e74>] (do_recvmmsg) from [<81487960>] (__do_sys_recvmmsg_time32 net/socket.c:3075 [inline])
[<81486e74>] (do_recvmmsg) from [<81487960>] (sys_recvmmsg_time32+0xc4/0xd8 net/socket.c:3068)
 r10:0000016d r9:8502b000 r8:ffffff62 r7:00000000 r6:00000000 r5:200005c0
 r4:00000004
[<8148789c>] (sys_recvmmsg_time32) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67)
Exception stack(0xdff21fa8 to 0xdff21ff0)
1fa0:                   00000000 00000000 00000004 200005c0 ffffff62 00000000
1fc0: 00000000 00000000 00286388 0000016d 00000000 00006364 003d0f00 76b740bc
1fe0: 76b73ec0 76b73eb0 00018af8 00132ec0
 r8:8020029c r7:0000016d r6:00286388 r5:00000000 r4:00000000