INFO: task syz-executor.4:25879 blocked for more than 143 seconds. Not tainted 6.7.0-syzkaller-02320-gacc657692aed #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:26960 pid:25879 tgid:25879 ppid:5094 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5399 [inline] __schedule+0xf12/0x5c00 kernel/sched/core.c:6726 __schedule_loop kernel/sched/core.c:6801 [inline] schedule+0xe9/0x270 kernel/sched/core.c:6816 coredump_task_exit kernel/exit.c:437 [inline] do_exit+0x3e7/0x2ad0 kernel/exit.c:823 do_group_exit+0xd4/0x2a0 kernel/exit.c:1018 get_signal+0x23b5/0x2790 kernel/signal.c:2893 arch_do_signal_or_restart+0x90/0x7f0 arch/x86/kernel/signal.c:309 exit_to_user_mode_loop kernel/entry/common.c:105 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:201 [inline] syscall_exit_to_user_mode+0x156/0x2b0 kernel/entry/common.c:212 do_syscall_64+0xe0/0x250 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f54f487cd29 RSP: 002b:00007ffc68e3d248 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffdfc RBX: 000000000011a64d RCX: 00007f54f487cd29 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f54f49ac05c RBP: 0000000000000032 R08: 00007f54f49ac05c R09: 00007f54f49ac05c R10: 00007ffc68e3d380 R11: 0000000000000246 R12: 00007f54f49ac05c R13: 000000000011a67f R14: 00007ffc68e3d3a0 R15: 00007ffc68e3d380 INFO: task syz-executor.4:25885 blocked for more than 143 seconds. Not tainted 6.7.0-syzkaller-02320-gacc657692aed #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:28216 pid:25885 tgid:25879 ppid:5094 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5399 [inline] __schedule+0xf12/0x5c00 kernel/sched/core.c:6726 __schedule_loop kernel/sched/core.c:6801 [inline] schedule+0xe9/0x270 kernel/sched/core.c:6816 schedule_timeout+0x257/0x290 kernel/time/timer.c:2159 do_wait_for_common kernel/sched/completion.c:95 [inline] __wait_for_common+0x3e0/0x5f0 kernel/sched/completion.c:116 wait_for_common kernel/sched/completion.c:127 [inline] wait_for_completion_state+0x1c/0x30 kernel/sched/completion.c:264 coredump_wait fs/coredump.c:414 [inline] do_coredump+0x908/0x3f70 fs/coredump.c:571 get_signal+0x242f/0x2790 kernel/signal.c:2879 arch_do_signal_or_restart+0x90/0x7f0 arch/x86/kernel/signal.c:309 exit_to_user_mode_loop kernel/entry/common.c:105 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:201 [inline] syscall_exit_to_user_mode+0x156/0x2b0 kernel/entry/common.c:212 do_syscall_64+0xe0/0x250 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f54f487cd29 RSP: 002b:00007f54f55e40c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 RAX: ffffffffffffffe5 RBX: 00007f54f49ac050 RCX: 00007f54f487cd29 RDX: 0000000000000001 RSI: 0000000020000240 RDI: 000000000000000a RBP: 00007f54f48c947a R08: 0000000000000000 R09: 0000000000000000 R10: 0604000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f54f49ac050 R15: 00007ffc68e3d168 INFO: lockdep is turned off. NMI backtrace for cpu 0 CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.7.0-syzkaller-02320-gacc657692aed #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106 nmi_cpu_backtrace+0x277/0x390 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x299/0x300 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+0xf87/0x1210 kernel/hung_task.c:379 kthread+0x2c6/0x3a0 kernel/kthread.c:388 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 5061 Comm: syz-fuzzer Not tainted 6.7.0-syzkaller-02320-gacc657692aed #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 RIP: 0033:0x422c9d Code: fe 00 00 40 00 0f 83 38 02 00 00 48 8b 14 f2 84 02 48 89 c6 48 c1 ee 0d 81 e6 ff 1f 00 00 48 8b 94 f2 00 40 10 00 48 8b 72 70 <0f> 1f 00 48 85 f6 0f 84 fc 01 00 00 0f b6 7a 6a 40 f6 c7 01 0f 85 RSP: 002b:000000c0011d3e90 EFLAGS: 00000202 RAX: 000000c004ec5360 RBX: 000000c000045740 RCX: 000000c004ec5360 RDX: 00007f6d31dfc260 RSI: 0000000000000050 RDI: 0000000000d6a1a0 RBP: 000000c0011d3f08 R08: 000000000000d0c0 R09: 000000c002844800 R10: 0000000000000076 R11: 0000000000000075 R12: 0000000000000020 R13: 000000c00bf4997c R14: 000000c000007a00 R15: 0000000000000000 FS: 000000c00118d090 GS: 0000000000000000