FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 0 ====================================================== WARNING: possible circular locking dependency detected 6.14.0-rc3-syzkaller-g9aa8fe29f624 #0 Not tainted ------------------------------------------------------ syz.2.857/8432 is trying to acquire lock: ffffffff8ea14c58 ((console_sem).lock){-...}-{2:2}, at: down_trylock+0x20/0xa0 kernel/locking/semaphore.c:139 but task is already holding lock: ffff8880b873e958 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:598 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (&rq->__lock){-.-.}-{2:2}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 _raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378 raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:598 raw_spin_rq_lock kernel/sched/sched.h:1521 [inline] task_rq_lock+0xc6/0x360 kernel/sched/core.c:700 cgroup_move_task+0x9b/0x5a0 kernel/sched/psi.c:1161 css_set_move_task+0x72e/0x950 kernel/cgroup/cgroup.c:898 cgroup_post_fork+0x284/0x8b0 kernel/cgroup/cgroup.c:6695 copy_process+0x398a/0x3cf0 kernel/fork.c:2629 kernel_clone+0x226/0x8e0 kernel/fork.c:2815 user_mode_thread+0x144/0x1c0 kernel/fork.c:2893 rest_init+0x23/0x300 init/main.c:708 start_kernel+0x484/0x510 init/main.c:1099 x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:515 x86_64_start_kernel+0x66/0x70 arch/x86/kernel/head64.c:496 common_startup_64+0x13e/0x147 -> #1 (&p->pi_lock){-.-.}-{2:2}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162 class_raw_spinlock_irqsave_constructor include/linux/spinlock.h:551 [inline] try_to_wake_up+0xc2/0x1470 kernel/sched/core.c:4214 up+0x72/0x90 kernel/locking/semaphore.c:191 __up_console_sem kernel/printk/printk.c:343 [inline] __console_unlock+0x123/0x1f0 kernel/printk/printk.c:2869 __console_flush_and_unlock kernel/printk/printk.c:3271 [inline] console_unlock+0x18f/0x3b0 kernel/printk/printk.c:3309 vprintk_emit+0x730/0xa10 kernel/printk/printk.c:2432 dev_vprintk_emit+0x341/0x400 drivers/base/core.c:4890 dev_printk_emit+0xdd/0x120 drivers/base/core.c:4901 _dev_warn+0x122/0x170 drivers/base/core.c:4957 firmware_fallback_sysfs+0x4cf/0x9e0 drivers/base/firmware_loader/fallback.c:233 _request_firmware+0xe44/0x1430 drivers/base/firmware_loader/main.c:941 request_firmware_work_func+0x12a/0x280 drivers/base/firmware_loader/main.c:1194 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0xabe/0x18e0 kernel/workqueue.c:3317 worker_thread+0x870/0xd30 kernel/workqueue.c:3398 kthread+0x7a9/0x920 kernel/kthread.c:464 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 -> #0 ((console_sem).lock){-...}-{2:2}: check_prev_add kernel/locking/lockdep.c:3163 [inline] check_prevs_add kernel/locking/lockdep.c:3282 [inline] validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3906 __lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5228 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162 down_trylock+0x20/0xa0 kernel/locking/semaphore.c:139 __down_trylock_console_sem+0x109/0x250 kernel/printk/printk.c:326 console_trylock kernel/printk/printk.c:2852 [inline] console_trylock_spinning kernel/printk/printk.c:2009 [inline] vprintk_emit+0x3d7/0xa10 kernel/printk/printk.c:2431 _printk+0xd5/0x120 kernel/printk/printk.c:2457 fail_dump lib/fault-inject.c:66 [inline] should_fail_ex+0x3eb/0x550 lib/fault-inject.c:174 strncpy_from_user+0x36/0x270 lib/strncpy_from_user.c:118 strncpy_from_user_nofault+0x71/0x140 mm/maccess.c:193 bpf_probe_read_user_str_common kernel/trace/bpf_trace.c:215 [inline] ____bpf_probe_read_compat_str kernel/trace/bpf_trace.c:310 [inline] bpf_probe_read_compat_str+0xe9/0x180 kernel/trace/bpf_trace.c:306 bpf_prog_c1796171ffc7efef+0x3e/0x40 bpf_dispatcher_nop_func include/linux/bpf.h:1306 [inline] __bpf_prog_run include/linux/filter.h:718 [inline] bpf_prog_run include/linux/filter.h:725 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2377 [inline] bpf_trace_run4+0x334/0x590 kernel/trace/bpf_trace.c:2420 __bpf_trace_sched_switch+0x294/0x3d0 include/trace/events/sched.h:222 __traceiter_sched_switch+0x98/0xd0 include/trace/events/sched.h:222 __do_trace_sched_switch include/trace/events/sched.h:222 [inline] trace_sched_switch include/trace/events/sched.h:222 [inline] __schedule+0x23ad/0x4c90 kernel/sched/core.c:6762 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7087 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 constant_test_bit arch/x86/include/asm/bitops.h:206 [inline] arch_test_bit arch/x86/include/asm/bitops.h:238 [inline] _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:142 [inline] rmqueue mm/page_alloc.c:3089 [inline] get_page_from_freelist+0x3212/0x37a0 mm/page_alloc.c:3474 __alloc_frozen_pages_noprof+0x292/0x710 mm/page_alloc.c:4739 alloc_pages_mpol+0x311/0x660 mm/mempolicy.c:2270 folio_alloc_mpol_noprof mm/mempolicy.c:2289 [inline] vma_alloc_folio_noprof+0x12b/0x260 mm/mempolicy.c:2324 folio_prealloc+0x2e/0x170 mm/memory.c:-1 wp_page_copy mm/memory.c:3446 [inline] do_wp_page+0x1253/0x49b0 mm/memory.c:3838 handle_pte_fault mm/memory.c:5916 [inline] __handle_mm_fault+0x24d5/0x70f0 mm/memory.c:6043 handle_mm_fault+0x3e5/0x8d0 mm/memory.c:6212 do_user_addr_fault arch/x86/mm/fault.c:1388 [inline] handle_page_fault arch/x86/mm/fault.c:1480 [inline] exc_page_fault+0x2b9/0x8b0 arch/x86/mm/fault.c:1538 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 rep_movs_alternative+0x4a/0x70 arch/x86/lib/copy_user_64.S:65 copy_user_generic arch/x86/include/asm/uaccess_64.h:126 [inline] raw_copy_to_user arch/x86/include/asm/uaccess_64.h:147 [inline] _inline_copy_to_user include/linux/uaccess.h:197 [inline] _copy_to_user+0x8b/0xb0 lib/usercopy.c:26 copy_to_user include/linux/uaccess.h:225 [inline] map_lookup_elem+0x578/0x780 kernel/bpf/syscall.c:1681 __sys_bpf+0x46b/0x890 kernel/bpf/syscall.c:5798 __do_sys_bpf kernel/bpf/syscall.c:5920 [inline] __se_sys_bpf kernel/bpf/syscall.c:5918 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5918 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f other info that might help us debug this: Chain exists of: (console_sem).lock --> &p->pi_lock --> &rq->__lock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&rq->__lock); lock(&p->pi_lock); lock(&rq->__lock); lock((console_sem).lock); *** DEADLOCK *** 3 locks held by syz.2.857/8432: #0: ffff88801b0765e0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_trylock include/linux/mmap_lock.h:209 [inline] #0: ffff88801b0765e0 (&mm->mmap_lock){++++}-{4:4}, at: get_mmap_lock_carefully mm/memory.c:6249 [inline] #0: ffff88801b0765e0 (&mm->mmap_lock){++++}-{4:4}, at: lock_mm_and_find_vma+0x32/0x2f0 mm/memory.c:6309 #1: ffff8880b873e958 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:598 #2: ffffffff8eb39020 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline] #2: ffffffff8eb39020 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #2: ffffffff8eb39020 (rcu_read_lock){....}-{1:3}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2376 [inline] #2: ffffffff8eb39020 (rcu_read_lock){....}-{1:3}, at: bpf_trace_run4+0x244/0x590 kernel/trace/bpf_trace.c:2420 stack backtrace: CPU: 1 UID: 0 PID: 8432 Comm: syz.2.857 Not tainted 6.14.0-rc3-syzkaller-g9aa8fe29f624 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_circular_bug+0x13a/0x1b0 kernel/locking/lockdep.c:2076 check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2208 check_prev_add kernel/locking/lockdep.c:3163 [inline] check_prevs_add kernel/locking/lockdep.c:3282 [inline] validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3906 __lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5228 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162 down_trylock+0x20/0xa0 kernel/locking/semaphore.c:139 __down_trylock_console_sem+0x109/0x250 kernel/printk/printk.c:326 console_trylock kernel/printk/printk.c:2852 [inline] console_trylock_spinning kernel/printk/printk.c:2009 [inline] vprintk_emit+0x3d7/0xa10 kernel/printk/printk.c:2431 _printk+0xd5/0x120 kernel/printk/printk.c:2457 fail_dump lib/fault-inject.c:66 [inline] should_fail_ex+0x3eb/0x550 lib/fault-inject.c:174 strncpy_from_user+0x36/0x270 lib/strncpy_from_user.c:118 strncpy_from_user_nofault+0x71/0x140 mm/maccess.c:193 bpf_probe_read_user_str_common kernel/trace/bpf_trace.c:215 [inline] ____bpf_probe_read_compat_str kernel/trace/bpf_trace.c:310 [inline] bpf_probe_read_compat_str+0xe9/0x180 kernel/trace/bpf_trace.c:306 bpf_prog_c1796171ffc7efef+0x3e/0x40 bpf_dispatcher_nop_func include/linux/bpf.h:1306 [inline] __bpf_prog_run include/linux/filter.h:718 [inline] bpf_prog_run include/linux/filter.h:725 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2377 [inline] bpf_trace_run4+0x334/0x590 kernel/trace/bpf_trace.c:2420 __bpf_trace_sched_switch+0x294/0x3d0 include/trace/events/sched.h:222 __traceiter_sched_switch+0x98/0xd0 include/trace/events/sched.h:222 __do_trace_sched_switch include/trace/events/sched.h:222 [inline] trace_sched_switch include/trace/events/sched.h:222 [inline] __schedule+0x23ad/0x4c90 kernel/sched/core.c:6762 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7087 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:constant_test_bit arch/x86/include/asm/bitops.h:206 [inline] RIP: 0010:arch_test_bit arch/x86/include/asm/bitops.h:238 [inline] RIP: 0010:_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:142 [inline] RIP: 0010:rmqueue mm/page_alloc.c:3089 [inline] RIP: 0010:get_page_from_freelist+0x3212/0x37a0 mm/page_alloc.c:3474 Code: 00 74 42 48 8b 9c 24 f0 00 00 00 48 89 df be 08 00 00 00 e8 c0 8a 0d 00 48 b8 00 00 00 00 00 fc ff df 48 8b 8c 24 d8 01 00 00 <80> 3c 01 00 74 08 48 89 df e8 30 88 0d 00 48 f7 03 01 00 00 00 0f RSP: 0018:ffffc900030d6f78 EFLAGS: 00000256 RAX: dffffc0000000000 RBX: ffff88813fffc278 RCX: 1ffff11027fff84f RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88813fffc278 RBP: 0000000000000004 R08: ffff88813fffc27f R09: 1ffff11027fff84f R10: dffffc0000000000 R11: ffffed1027fff850 R12: ffff88813fffd990 R13: 0000000000000000 R14: ffffea000126ba40 R15: ffff88813fffbcf8 __alloc_frozen_pages_noprof+0x292/0x710 mm/page_alloc.c:4739 alloc_pages_mpol+0x311/0x660 mm/mempolicy.c:2270 folio_alloc_mpol_noprof mm/mempolicy.c:2289 [inline] vma_alloc_folio_noprof+0x12b/0x260 mm/mempolicy.c:2324 folio_prealloc+0x2e/0x170 mm/memory.c:-1 wp_page_copy mm/memory.c:3446 [inline] do_wp_page+0x1253/0x49b0 mm/memory.c:3838 handle_pte_fault mm/memory.c:5916 [inline] __handle_mm_fault+0x24d5/0x70f0 mm/memory.c:6043 handle_mm_fault+0x3e5/0x8d0 mm/memory.c:6212 do_user_addr_fault arch/x86/mm/fault.c:1388 [inline] handle_page_fault arch/x86/mm/fault.c:1480 [inline] exc_page_fault+0x2b9/0x8b0 arch/x86/mm/fault.c:1538 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0010:rep_movs_alternative+0x4a/0x70 arch/x86/lib/copy_user_64.S:71 Code: 75 f1 c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 48 8b 06 48 89 07 48 83 c6 08 48 83 c7 08 83 e9 08 74 df 83 f9 08 73 e8 eb c9 a4 c3 cc cc cc cc 48 89 c8 48 c1 e9 03 83 e0 07 f3 48 a5 89 c1 RSP: 0018:ffffc900030d7cc0 EFLAGS: 00050206 RAX: ffffffff84f5c401 RBX: 0000200000010080 RCX: 0000000000001080 RDX: 0000000000000000 RSI: ffff888011c7ef80 RDI: 000020000000f000 RBP: 0000000000010000 R08: ffff888011c7ffff R09: 1ffff1100238ffff R10: dffffc0000000000 R11: ffffed1002390000 R12: 0000000000010000 R13: 00007ffffffff000 R14: ffff888011c70000 R15: 0000200000000080 copy_user_generic arch/x86/include/asm/uaccess_64.h:126 [inline] raw_copy_to_user arch/x86/include/asm/uaccess_64.h:147 [inline] _inline_copy_to_user include/linux/uaccess.h:197 [inline] _copy_to_user+0x8b/0xb0 lib/usercopy.c:26 copy_to_user include/linux/uaccess.h:225 [inline] map_lookup_elem+0x578/0x780 kernel/bpf/syscall.c:1681 __sys_bpf+0x46b/0x890 kernel/bpf/syscall.c:5798 __do_sys_bpf kernel/bpf/syscall.c:5920 [inline] __se_sys_bpf kernel/bpf/syscall.c:5918 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5918 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f130d18d169 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f130df38038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f130d3a5fa0 RCX: 00007f130d18d169 RDX: 0000000000000020 RSI: 00002000000003c0 RDI: 0000000000000001 RBP: 00007f130df38090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 0000000000000000 R14: 00007f130d3a5fa0 R15: 00007ffc088be598 CPU: 1 UID: 0 PID: 8432 Comm: syz.2.857 Not tainted 6.14.0-rc3-syzkaller-g9aa8fe29f624 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 fail_dump lib/fault-inject.c:73 [inline] should_fail_ex+0x40a/0x550 lib/fault-inject.c:174 strncpy_from_user+0x36/0x270 lib/strncpy_from_user.c:118 strncpy_from_user_nofault+0x71/0x140 mm/maccess.c:193 bpf_probe_read_user_str_common kernel/trace/bpf_trace.c:215 [inline] ____bpf_probe_read_compat_str kernel/trace/bpf_trace.c:310 [inline] bpf_probe_read_compat_str+0xe9/0x180 kernel/trace/bpf_trace.c:306 bpf_prog_c1796171ffc7efef+0x3e/0x40 bpf_dispatcher_nop_func include/linux/bpf.h:1306 [inline] __bpf_prog_run include/linux/filter.h:718 [inline] bpf_prog_run include/linux/filter.h:725 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2377 [inline] bpf_trace_run4+0x334/0x590 kernel/trace/bpf_trace.c:2420 __bpf_trace_sched_switch+0x294/0x3d0 include/trace/events/sched.h:222 __traceiter_sched_switch+0x98/0xd0 include/trace/events/sched.h:222 __do_trace_sched_switch include/trace/events/sched.h:222 [inline] trace_sched_switch include/trace/events/sched.h:222 [inline] __schedule+0x23ad/0x4c90 kernel/sched/core.c:6762 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7087 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:constant_test_bit arch/x86/include/asm/bitops.h:206 [inline] RIP: 0010:arch_test_bit arch/x86/include/asm/bitops.h:238 [inline] RIP: 0010:_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:142 [inline] RIP: 0010:rmqueue mm/page_alloc.c:3089 [inline] RIP: 0010:get_page_from_freelist+0x3212/0x37a0 mm/page_alloc.c:3474 Code: 00 74 42 48 8b 9c 24 f0 00 00 00 48 89 df be 08 00 00 00 e8 c0 8a 0d 00 48 b8 00 00 00 00 00 fc ff df 48 8b 8c 24 d8 01 00 00 <80> 3c 01 00 74 08 48 89 df e8 30 88 0d 00 48 f7 03 01 00 00 00 0f RSP: 0018:ffffc900030d6f78 EFLAGS: 00000256 RAX: dffffc0000000000 RBX: ffff88813fffc278 RCX: 1ffff11027fff84f RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88813fffc278 RBP: 0000000000000004 R08: ffff88813fffc27f R09: 1ffff11027fff84f R10: dffffc0000000000 R11: ffffed1027fff850 R12: ffff88813fffd990 R13: 0000000000000000 R14: ffffea000126ba40 R15: ffff88813fffbcf8 __alloc_frozen_pages_noprof+0x292/0x710 mm/page_alloc.c:4739 alloc_pages_mpol+0x311/0x660 mm/mempolicy.c:2270 folio_alloc_mpol_noprof mm/mempolicy.c:2289 [inline] vma_alloc_folio_noprof+0x12b/0x260 mm/mempolicy.c:2324 folio_prealloc+0x2e/0x170 mm/memory.c:-1 wp_page_copy mm/memory.c:3446 [inline] do_wp_page+0x1253/0x49b0 mm/memory.c:3838 handle_pte_fault mm/memory.c:5916 [inline] __handle_mm_fault+0x24d5/0x70f0 mm/memory.c:6043 handle_mm_fault+0x3e5/0x8d0 mm/memory.c:6212 do_user_addr_fault arch/x86/mm/fault.c:1388 [inline] handle_page_fault arch/x86/mm/fault.c:1480 [inline] exc_page_fault+0x2b9/0x8b0 arch/x86/mm/fault.c:1538 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0010:rep_movs_alternative+0x4a/0x70 arch/x86/lib/copy_user_64.S:71 Code: 75 f1 c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 48 8b 06 48 89 07 48 83 c6 08 48 83 c7 08 83 e9 08 74 df 83 f9 08 73 e8 eb c9 a4 c3 cc cc cc cc 48 89 c8 48 c1 e9 03 83 e0 07 f3 48 a5 89 c1 RSP: 0018:ffffc900030d7cc0 EFLAGS: 00050206 RAX: ffffffff84f5c401 RBX: 0000200000010080 RCX: 0000000000001080 RDX: 0000000000000000 RSI: ffff888011c7ef80 RDI: 000020000000f000 RBP: 0000000000010000 R08: ffff888011c7ffff R09: 1ffff1100238ffff R10: dffffc0000000000 R11: ffffed1002390000 R12: 0000000000010000 R13: 00007ffffffff000 R14: ffff888011c70000 R15: 0000200000000080 copy_user_generic arch/x86/include/asm/uaccess_64.h:126 [inline] raw_copy_to_user arch/x86/include/asm/uaccess_64.h:147 [inline] _inline_copy_to_user include/linux/uaccess.h:197 [inline] _copy_to_user+0x8b/0xb0 lib/usercopy.c:26 copy_to_user include/linux/uaccess.h:225 [inline] map_lookup_elem+0x578/0x780 kernel/bpf/syscall.c:1681 __sys_bpf+0x46b/0x890 kernel/bpf/syscall.c:5798 __do_sys_bpf kernel/bpf/syscall.c:5920 [inline] __se_sys_bpf kernel/bpf/syscall.c:5918 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5918 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f130d18d169 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f130df38038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f130d3a5fa0 RCX: 00007f130d18d169 RDX: 0000000000000020 RSI: 00002000000003c0 RDI: 0000000000000001 RBP: 00007f130df38090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 0000000000000000 R14: 00007f130d3a5fa0 R15: 00007ffc088be598 ---------------- Code disassembly (best guess): 0: 00 74 42 48 add %dh,0x48(%rdx,%rax,2) 4: 8b 9c 24 f0 00 00 00 mov 0xf0(%rsp),%ebx b: 48 89 df mov %rbx,%rdi e: be 08 00 00 00 mov $0x8,%esi 13: e8 c0 8a 0d 00 call 0xd8ad8 18: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 1f: fc ff df 22: 48 8b 8c 24 d8 01 00 mov 0x1d8(%rsp),%rcx 29: 00 * 2a: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1) <-- trapping instruction 2e: 74 08 je 0x38 30: 48 89 df mov %rbx,%rdi 33: e8 30 88 0d 00 call 0xd8868 38: 48 f7 03 01 00 00 00 testq $0x1,(%rbx) 3f: 0f .byte 0xf