FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 0 ====================================================== WARNING: possible circular locking dependency detected 6.1.132-syzkaller #0 Not tainted ------------------------------------------------------ syz.4.3444/17947 is trying to acquire lock: ffffffff8d3228e0 (console_owner){-.-.}-{0:0}, at: console_lock_spinning_enable kernel/printk/printk.c:1818 [inline] ffffffff8d3228e0 (console_owner){-.-.}-{0:0}, at: console_emit_next_record+0x74f/0xc30 kernel/printk/printk.c:2774 but task is already holding lock: ffff8880b8f3a998 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:537 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #4 (&rq->__lock){-.-.}-{2:2}: lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662 _raw_spin_lock_nested+0x2d/0x40 kernel/locking/spinlock.c:378 raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:537 raw_spin_rq_lock kernel/sched/sched.h:1355 [inline] rq_lock kernel/sched/sched.h:1645 [inline] task_fork_fair+0x5d/0x350 kernel/sched/fair.c:11888 sched_cgroup_fork+0x374/0x400 kernel/sched/core.c:4685 copy_process+0x2482/0x40a0 kernel/fork.c:2383 kernel_clone+0x222/0x920 kernel/fork.c:2681 user_mode_thread+0x140/0x1b0 kernel/fork.c:2757 rest_init+0x23/0x300 init/main.c:698 start_kernel+0x0/0x53f init/main.c:893 start_kernel+0x496/0x53f init/main.c:1140 secondary_startup_64_no_verify+0xcf/0xdb -> #3 (&p->pi_lock){-.-.}-{2:2}: lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162 try_to_wake_up+0xad/0x1250 kernel/sched/core.c:4111 __wake_up_common+0x2a0/0x4e0 kernel/sched/wait.c:107 __wake_up_common_lock kernel/sched/wait.c:138 [inline] __wake_up+0x11a/0x1c0 kernel/sched/wait.c:160 tty_port_default_wakeup+0xa2/0xf0 drivers/tty/tty_port.c:71 serial8250_tx_chars+0x60d/0x800 drivers/tty/serial/8250/8250_port.c:1854 serial8250_handle_irq+0x4ff/0x6a0 drivers/tty/serial/8250/8250_port.c:1961 serial8250_default_handle_irq+0xc8/0x1e0 drivers/tty/serial/8250/8250_port.c:1981 serial8250_interrupt+0xa1/0x1e0 drivers/tty/serial/8250/8250_core.c:126 __handle_irq_event_percpu+0x2a8/0xb20 kernel/irq/handle.c:158 handle_irq_event_percpu kernel/irq/handle.c:193 [inline] handle_irq_event+0x85/0x1e0 kernel/irq/handle.c:210 handle_edge_irq+0x245/0xbf0 kernel/irq/chip.c:819 generic_handle_irq_desc include/linux/irqdesc.h:158 [inline] handle_irq arch/x86/kernel/irq.c:233 [inline] __common_interrupt+0xd7/0x1f0 arch/x86/kernel/irq.c:252 common_interrupt+0xae/0xd0 arch/x86/kernel/irq.c:242 asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:682 preempt_latency_start kernel/sched/core.c:5693 [inline] preempt_count_add+0xac/0x180 kernel/sched/core.c:5716 unwind_next_frame+0xb3/0x2220 arch/x86/kernel/unwind_orc.c:433 arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 kasan_save_free_info+0x27/0x40 mm/kasan/generic.c:516 ____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236 kasan_slab_free include/linux/kasan.h:177 [inline] slab_free_hook mm/slub.c:1724 [inline] slab_free_freelist_hook mm/slub.c:1750 [inline] slab_free mm/slub.c:3661 [inline] kmem_cache_free+0x292/0x510 mm/slub.c:3683 mas_destroy+0x1c54/0x2300 lib/maple_tree.c:5862 mas_store_prealloc+0x34d/0x460 lib/maple_tree.c:5789 __vma_adjust+0x1561/0x1f40 mm/mmap.c:796 __split_vma+0x36c/0x4c0 mm/mmap.c:-1 do_mas_align_munmap+0x95f/0x15a0 mm/mmap.c:2489 do_mas_munmap+0x246/0x2b0 mm/mmap.c:2638 __mmap_region mm/mmap.c:2686 [inline] mmap_region+0x8d4/0x2660 mm/mmap.c:2904 do_mmap+0x8c5/0xf60 mm/mmap.c:1424 vm_mmap_pgoff+0x1ca/0x2d0 mm/util.c:520 ksys_mmap_pgoff+0x4f5/0x6d0 mm/mmap.c:1470 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 -> #2 (&tty->write_wait){-...}-{2:2}: lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162 __wake_up_common_lock kernel/sched/wait.c:137 [inline] __wake_up+0xfd/0x1c0 kernel/sched/wait.c:160 tty_port_default_wakeup+0xa2/0xf0 drivers/tty/tty_port.c:71 serial8250_tx_chars+0x60d/0x800 drivers/tty/serial/8250/8250_port.c:1854 serial8250_handle_irq+0x4ff/0x6a0 drivers/tty/serial/8250/8250_port.c:1961 serial8250_default_handle_irq+0xc8/0x1e0 drivers/tty/serial/8250/8250_port.c:1981 serial8250_interrupt+0xa1/0x1e0 drivers/tty/serial/8250/8250_core.c:126 __handle_irq_event_percpu+0x2a8/0xb20 kernel/irq/handle.c:158 handle_irq_event_percpu kernel/irq/handle.c:193 [inline] handle_irq_event+0x85/0x1e0 kernel/irq/handle.c:210 handle_edge_irq+0x245/0xbf0 kernel/irq/chip.c:819 generic_handle_irq_desc include/linux/irqdesc.h:158 [inline] handle_irq arch/x86/kernel/irq.c:233 [inline] __common_interrupt+0xd7/0x1f0 arch/x86/kernel/irq.c:252 common_interrupt+0xae/0xd0 arch/x86/kernel/irq.c:242 asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:682 native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline] arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline] acpi_safe_halt drivers/acpi/processor_idle.c:111 [inline] acpi_idle_do_entry+0x10f/0x340 drivers/acpi/processor_idle.c:567 acpi_idle_enter+0x352/0x4f0 drivers/acpi/processor_idle.c:704 cpuidle_enter_state+0x516/0xf80 drivers/cpuidle/cpuidle.c:239 cpuidle_enter+0x59/0x90 drivers/cpuidle/cpuidle.c:356 call_cpuidle kernel/sched/idle.c:155 [inline] cpuidle_idle_call kernel/sched/idle.c:236 [inline] do_idle+0x3ce/0x680 kernel/sched/idle.c:303 cpu_startup_entry+0x3d/0x60 kernel/sched/idle.c:401 start_secondary+0xe4/0xf0 arch/x86/kernel/smpboot.c:281 secondary_startup_64_no_verify+0xcf/0xdb -> #1 (&port_lock_key){-.-.}-{2:2}: lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162 serial8250_console_write+0x19f/0x1a30 drivers/tty/serial/8250/8250_port.c:3433 call_console_driver kernel/printk/printk.c:1977 [inline] console_emit_next_record+0x86d/0xc30 kernel/printk/printk.c:2777 console_flush_all kernel/printk/printk.c:-1 [inline] console_unlock+0x278/0x7c0 kernel/printk/printk.c:2906 vprintk_emit+0x523/0x740 kernel/printk/printk.c:2303 _printk+0xd1/0x111 kernel/printk/printk.c:2328 register_console+0x6b9/0x9a0 kernel/printk/printk.c:3269 univ8250_console_init+0x41/0x43 drivers/tty/serial/8250/8250_core.c:687 console_init+0x1d6/0x7f3 kernel/printk/printk.c:3359 start_kernel+0x30b/0x53f init/main.c:1076 secondary_startup_64_no_verify+0xcf/0xdb -> #0 (console_owner){-.-.}-{0:0}: check_prev_add kernel/locking/lockdep.c:3090 [inline] check_prevs_add kernel/locking/lockdep.c:3209 [inline] validate_chain+0x1661/0x5950 kernel/locking/lockdep.c:3825 __lock_acquire+0x125b/0x1f80 kernel/locking/lockdep.c:5049 lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662 console_lock_spinning_enable kernel/printk/printk.c:1818 [inline] console_emit_next_record+0x76c/0xc30 kernel/printk/printk.c:2774 console_flush_all kernel/printk/printk.c:-1 [inline] console_unlock+0x278/0x7c0 kernel/printk/printk.c:2906 vprintk_emit+0x523/0x740 kernel/printk/printk.c:2303 _printk+0xd1/0x111 kernel/printk/printk.c:2328 fail_dump lib/fault-inject.c:45 [inline] should_fail_ex+0x387/0x4d0 lib/fault-inject.c:147 strncpy_from_user+0x32/0x360 lib/strncpy_from_user.c:118 strncpy_from_user_nofault+0x6c/0x130 mm/maccess.c:186 bpf_probe_read_user_str_common kernel/trace/bpf_trace.c:204 [inline] ____bpf_probe_read_user_str kernel/trace/bpf_trace.c:213 [inline] bpf_probe_read_user_str+0x26/0x70 kernel/trace/bpf_trace.c:210 bpf_prog_02a70dbeb5f742df+0x3a/0x3c bpf_dispatcher_nop_func include/linux/bpf.h:1000 [inline] __bpf_prog_run include/linux/filter.h:603 [inline] bpf_prog_run include/linux/filter.h:610 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2284 [inline] bpf_trace_run2+0x1fd/0x410 kernel/trace/bpf_trace.c:2323 trace_tlb_flush+0x151/0x1a0 include/trace/events/tlb.h:38 switch_mm_irqs_off+0x84a/0xc20 arch/x86/mm/tlb.c:-1 context_switch kernel/sched/core.c:5229 [inline] __schedule+0x1152/0x4570 kernel/sched/core.c:6561 preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6873 irqentry_exit+0x53/0x80 kernel/entry/common.c:439 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691 stack_trace_consume_entry+0x0/0x270 arch_stack_walk+0x101/0x140 arch/x86/kernel/stacktrace.c:27 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 ____kasan_kmalloc mm/kasan/common.c:374 [inline] __kasan_kmalloc+0x97/0xb0 mm/kasan/common.c:383 kasan_kmalloc include/linux/kasan.h:211 [inline] __do_kmalloc_node mm/slab_common.c:936 [inline] __kmalloc+0xb2/0x230 mm/slab_common.c:949 kmalloc include/linux/slab.h:568 [inline] kzalloc include/linux/slab.h:699 [inline] bpf_test_init+0xc3/0x160 net/bpf/test_run.c:775 bpf_prog_test_run_skb+0x297/0x13a0 net/bpf/test_run.c:1100 bpf_prog_test_run+0x32f/0x3a0 kernel/bpf/syscall.c:3682 __sys_bpf+0x3eb/0x6c0 kernel/bpf/syscall.c:5035 __do_sys_bpf kernel/bpf/syscall.c:5121 [inline] __se_sys_bpf kernel/bpf/syscall.c:5119 [inline] __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5119 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 other info that might help us debug this: Chain exists of: console_owner --> &p->pi_lock --> &rq->__lock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&rq->__lock); lock(&p->pi_lock); lock(&rq->__lock); lock(console_owner); *** DEADLOCK *** 3 locks held by syz.4.3444/17947: #0: ffff8880b8f3a998 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:537 #1: ffffffff8d32e740 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline] #1: ffffffff8d32e740 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline] #1: ffffffff8d32e740 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2283 [inline] #1: ffffffff8d32e740 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0x110/0x410 kernel/trace/bpf_trace.c:2323 #2: ffffffff8d20a640 (console_lock){+.+.}-{0:0}, at: _printk+0xd1/0x111 kernel/printk/printk.c:2328 stack backtrace: CPU: 1 PID: 17947 Comm: syz.4.3444 Not tainted 6.1.132-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 check_noncircular+0x2fa/0x3b0 kernel/locking/lockdep.c:2170 check_prev_add kernel/locking/lockdep.c:3090 [inline] check_prevs_add kernel/locking/lockdep.c:3209 [inline] validate_chain+0x1661/0x5950 kernel/locking/lockdep.c:3825 __lock_acquire+0x125b/0x1f80 kernel/locking/lockdep.c:5049 lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662 console_lock_spinning_enable kernel/printk/printk.c:1818 [inline] console_emit_next_record+0x76c/0xc30 kernel/printk/printk.c:2774 console_flush_all kernel/printk/printk.c:-1 [inline] console_unlock+0x278/0x7c0 kernel/printk/printk.c:2906 vprintk_emit+0x523/0x740 kernel/printk/printk.c:2303 _printk+0xd1/0x111 kernel/printk/printk.c:2328 fail_dump lib/fault-inject.c:45 [inline] should_fail_ex+0x387/0x4d0 lib/fault-inject.c:147 strncpy_from_user+0x32/0x360 lib/strncpy_from_user.c:118 strncpy_from_user_nofault+0x6c/0x130 mm/maccess.c:186 bpf_probe_read_user_str_common kernel/trace/bpf_trace.c:204 [inline] ____bpf_probe_read_user_str kernel/trace/bpf_trace.c:213 [inline] bpf_probe_read_user_str+0x26/0x70 kernel/trace/bpf_trace.c:210 bpf_prog_02a70dbeb5f742df+0x3a/0x3c bpf_dispatcher_nop_func include/linux/bpf.h:1000 [inline] __bpf_prog_run include/linux/filter.h:603 [inline] bpf_prog_run include/linux/filter.h:610 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2284 [inline] bpf_trace_run2+0x1fd/0x410 kernel/trace/bpf_trace.c:2323 trace_tlb_flush+0x151/0x1a0 include/trace/events/tlb.h:38 switch_mm_irqs_off+0x84a/0xc20 arch/x86/mm/tlb.c:-1 context_switch kernel/sched/core.c:5229 [inline] __schedule+0x1152/0x4570 kernel/sched/core.c:6561 preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6873 irqentry_exit+0x53/0x80 kernel/entry/common.c:439 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691 RIP: 0010:stack_trace_consume_entry+0x0/0x270 kernel/stacktrace.c:83 Code: ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 7b ff ff ff 48 89 df e8 30 af 69 00 e9 6e ff ff ff e8 f6 37 39 09 66 0f 1f 44 00 00 <55> 41 57 41 56 41 55 41 54 53 48 83 ec 18 48 89 fb 48 ba 00 00 00 RSP: 0018:ffffc90003537738 EFLAGS: 00000282 RAX: ffffffff81996bab RBX: ffffc90003537740 RCX: ffffffff8fe3e000 RDX: ffffffff8ff99701 RSI: ffffffff81996bab RDI: ffffc90003537820 RBP: ffffc900035377d0 R08: ffffc90003537d70 R09: ffffc90003537790 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888076ca0000 R13: ffffffff81785c60 R14: ffffc90003537820 R15: 0000000000000000 arch_stack_walk+0x101/0x140 arch/x86/kernel/stacktrace.c:27 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 ____kasan_kmalloc mm/kasan/common.c:374 [inline] __kasan_kmalloc+0x97/0xb0 mm/kasan/common.c:383 kasan_kmalloc include/linux/kasan.h:211 [inline] __do_kmalloc_node mm/slab_common.c:936 [inline] __kmalloc+0xb2/0x230 mm/slab_common.c:949 kmalloc include/linux/slab.h:568 [inline] kzalloc include/linux/slab.h:699 [inline] bpf_test_init+0xc3/0x160 net/bpf/test_run.c:775 bpf_prog_test_run_skb+0x297/0x13a0 net/bpf/test_run.c:1100 bpf_prog_test_run+0x32f/0x3a0 kernel/bpf/syscall.c:3682 __sys_bpf+0x3eb/0x6c0 kernel/bpf/syscall.c:5035 __do_sys_bpf kernel/bpf/syscall.c:5121 [inline] __se_sys_bpf kernel/bpf/syscall.c:5119 [inline] __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5119 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f63ddf8d169 Code: Unable to access opcode bytes at 0x7f63ddf8d13f. RSP: 002b:00007f63dedd2038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f63de1a5fa0 RCX: 00007f63ddf8d169 RDX: 000000000000002c RSI: 0000200000000080 RDI: 000000000000000a RBP: 00007f63dedd2090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 00007f63de1a5fa0 R15: 00007ffe2a298988 CPU: 1 PID: 17947 Comm: syz.4.3444 Not tainted 6.1.132-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 fail_dump lib/fault-inject.c:52 [inline] should_fail_ex+0x3a6/0x4d0 lib/fault-inject.c:147 strncpy_from_user+0x32/0x360 lib/strncpy_from_user.c:118 strncpy_from_user_nofault+0x6c/0x130 mm/maccess.c:186 bpf_probe_read_user_str_common kernel/trace/bpf_trace.c:204 [inline] ____bpf_probe_read_user_str kernel/trace/bpf_trace.c:213 [inline] bpf_probe_read_user_str+0x26/0x70 kernel/trace/bpf_trace.c:210 bpf_prog_02a70dbeb5f742df+0x3a/0x3c bpf_dispatcher_nop_func include/linux/bpf.h:1000 [inline] __bpf_prog_run include/linux/filter.h:603 [inline] bpf_prog_run include/linux/filter.h:610 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2284 [inline] bpf_trace_run2+0x1fd/0x410 kernel/trace/bpf_trace.c:2323 trace_tlb_flush+0x151/0x1a0 include/trace/events/tlb.h:38 switch_mm_irqs_off+0x84a/0xc20 arch/x86/mm/tlb.c:-1 context_switch kernel/sched/core.c:5229 [inline] __schedule+0x1152/0x4570 kernel/sched/core.c:6561 preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6873 irqentry_exit+0x53/0x80 kernel/entry/common.c:439 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691 RIP: 0010:stack_trace_consume_entry+0x0/0x270 kernel/stacktrace.c:83 Code: ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 7b ff ff ff 48 89 df e8 30 af 69 00 e9 6e ff ff ff e8 f6 37 39 09 66 0f 1f 44 00 00 <55> 41 57 41 56 41 55 41 54 53 48 83 ec 18 48 89 fb 48 ba 00 00 00 RSP: 0018:ffffc90003537738 EFLAGS: 00000282 RAX: ffffffff81996bab RBX: ffffc90003537740 RCX: ffffffff8fe3e000 RDX: ffffffff8ff99701 RSI: ffffffff81996bab RDI: ffffc90003537820 RBP: ffffc900035377d0 R08: ffffc90003537d70 R09: ffffc90003537790 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888076ca0000 R13: ffffffff81785c60 R14: ffffc90003537820 R15: 0000000000000000 arch_stack_walk+0x101/0x140 arch/x86/kernel/stacktrace.c:27 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 ____kasan_kmalloc mm/kasan/common.c:374 [inline] __kasan_kmalloc+0x97/0xb0 mm/kasan/common.c:383 kasan_kmalloc include/linux/kasan.h:211 [inline] __do_kmalloc_node mm/slab_common.c:936 [inline] __kmalloc+0xb2/0x230 mm/slab_common.c:949 kmalloc include/linux/slab.h:568 [inline] kzalloc include/linux/slab.h:699 [inline] bpf_test_init+0xc3/0x160 net/bpf/test_run.c:775 bpf_prog_test_run_skb+0x297/0x13a0 net/bpf/test_run.c:1100 bpf_prog_test_run+0x32f/0x3a0 kernel/bpf/syscall.c:3682 __sys_bpf+0x3eb/0x6c0 kernel/bpf/syscall.c:5035 __do_sys_bpf kernel/bpf/syscall.c:5121 [inline] __se_sys_bpf kernel/bpf/syscall.c:5119 [inline] __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5119 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f63ddf8d169 Code: Unable to access opcode bytes at 0x7f63ddf8d13f. RSP: 002b:00007f63dedd2038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f63de1a5fa0 RCX: 00007f63ddf8d169 RDX: 000000000000002c RSI: 0000200000000080 RDI: 000000000000000a RBP: 00007f63dedd2090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 00007f63de1a5fa0 R15: 00007ffe2a298988 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: ff 89 d9 80 e1 07 decl 0x7e180d9(%rcx) 6: 80 c1 03 add $0x3,%cl 9: 38 c1 cmp %al,%cl b: 0f 8c 7b ff ff ff jl 0xffffff8c 11: 48 89 df mov %rbx,%rdi 14: e8 30 af 69 00 call 0x69af49 19: e9 6e ff ff ff jmp 0xffffff8c 1e: e8 f6 37 39 09 call 0x9393819 23: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1) * 29: 55 push %rbp <-- trapping instruction 2a: 41 57 push %r15 2c: 41 56 push %r14 2e: 41 55 push %r13 30: 41 54 push %r12 32: 53 push %rbx 33: 48 83 ec 18 sub $0x18,%rsp 37: 48 89 fb mov %rdi,%rbx 3a: 48 rex.W 3b: ba .byte 0xba 3c: 00 00 add %al,(%rax)