forked to background, child pid 3050 no interfaces have a carrier [ 69.575305][ T3051] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.600798][ T3051] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.28' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 94.754905][ T3479] ===================================================== [ 94.761968][ T3479] BUG: KMSAN: kernel-infoleak in _copy_to_user+0x1c9/0x270 [ 94.769199][ T3479] _copy_to_user+0x1c9/0x270 [ 94.773802][ T3479] bpf_prog_test_run_raw_tp+0xb01/0xbb0 [ 94.779379][ T3479] bpf_prog_test_run+0x784/0x820 [ 94.784335][ T3479] __sys_bpf+0xadd/0x1240 [ 94.788687][ T3479] __ia32_sys_bpf+0xe1/0x130 [ 94.793456][ T3479] __do_fast_syscall_32+0x96/0xf0 [ 94.798682][ T3479] do_fast_syscall_32+0x34/0x70 [ 94.803552][ T3479] do_SYSENTER_32+0x1b/0x20 [ 94.808071][ T3479] entry_SYSENTER_compat_after_hwframe+0x4d/0x5c [ 94.814520][ T3479] [ 94.816850][ T3479] Local variable info created at: [ 94.821870][ T3479] bpf_prog_test_run_raw_tp+0xf0/0xbb0 [ 94.827371][ T3479] bpf_prog_test_run+0x784/0x820 [ 94.832349][ T3479] [ 94.834662][ T3479] Bytes 0-3 of 4 are uninitialized [ 94.839762][ T3479] Memory access of size 4 starts at ffff888122a0fc70 [ 94.846458][ T3479] Data copied to user address 0000000020000184 [ 94.852598][ T3479] [ 94.854909][ T3479] CPU: 1 PID: 3479 Comm: syz-executor189 Not tainted 5.17.0-syzkaller #0 [ 94.863332][ T3479] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 94.873386][ T3479] ===================================================== [ 94.880311][ T3479] Disabling lock debugging due to kernel taint [ 94.887316][ T3479] Kernel panic - not syncing: kmsan.panic set ... [ 94.893748][ T3479] CPU: 1 PID: 3479 Comm: syz-executor189 Tainted: G B 5.17.0-syzkaller #0 [ 94.903585][ T3479] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 94.913642][ T3479] Call Trace: [ 94.916914][ T3479] [ 94.919839][ T3479] dump_stack_lvl+0x1ff/0x28e [ 94.924644][ T3479] dump_stack+0x25/0x28 [ 94.928813][ T3479] panic+0x487/0xe1f [ 94.932742][ T3479] ? add_taint+0x181/0x210 [ 94.937175][ T3479] ? _raw_spin_unlock_irqrestore+0x78/0xb0 [ 94.943044][ T3479] kmsan_report+0x2e6/0x2f0 [ 94.947602][ T3479] ? kmsan_get_metadata+0x33/0x220 [ 94.952768][ T3479] ? kmsan_internal_check_memory+0x479/0x540 [ 94.958772][ T3479] ? kmsan_copy_to_user+0xe1/0xf0 [ 94.963835][ T3479] ? _copy_to_user+0x1c9/0x270 [ 94.968612][ T3479] ? bpf_prog_test_run_raw_tp+0xb01/0xbb0 [ 94.974358][ T3479] ? bpf_prog_test_run+0x784/0x820 [ 94.979492][ T3479] ? __sys_bpf+0xadd/0x1240 [ 94.984017][ T3479] ? __ia32_sys_bpf+0xe1/0x130 [ 94.988822][ T3479] ? __do_fast_syscall_32+0x96/0xf0 [ 94.994062][ T3479] ? do_fast_syscall_32+0x34/0x70 [ 94.999191][ T3479] ? do_SYSENTER_32+0x1b/0x20 [ 95.003902][ T3479] ? entry_SYSENTER_compat_after_hwframe+0x4d/0x5c [ 95.010448][ T3479] ? flat_send_IPI_mask+0xc8/0x130 [ 95.015583][ T3479] ? default_send_IPI_single+0xcd/0xf0 [ 95.021090][ T3479] ? native_apic_mem_read+0x60/0x60 [ 95.026309][ T3479] ? default_send_IPI_mask_allbutself_phys+0x4a0/0x4a0 [ 95.033197][ T3479] ? native_send_call_func_single_ipi+0x67/0x80 [ 95.039489][ T3479] ? native_smp_send_reschedule+0x100/0x100 [ 95.045494][ T3479] ? send_call_function_single_ipi+0x2e9/0x340 [ 95.051665][ T3479] ? kmsan_get_metadata+0x33/0x220 [ 95.056818][ T3479] ? kmsan_get_metadata+0x33/0x220 [ 95.061955][ T3479] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 95.067800][ T3479] kmsan_internal_check_memory+0x479/0x540 [ 95.073643][ T3479] kmsan_copy_to_user+0xe1/0xf0 [ 95.078531][ T3479] ? should_fail_usercopy+0x39/0x40 [ 95.083751][ T3479] _copy_to_user+0x1c9/0x270 [ 95.088362][ T3479] bpf_prog_test_run_raw_tp+0xb01/0xbb0 [ 95.093952][ T3479] ? bpf_prog_test_run_tracing+0xb50/0xb50 [ 95.099821][ T3479] bpf_prog_test_run+0x784/0x820 [ 95.105040][ T3479] __sys_bpf+0xadd/0x1240 [ 95.109407][ T3479] __ia32_sys_bpf+0xe1/0x130 [ 95.114025][ T3479] __do_fast_syscall_32+0x96/0xf0 [ 95.119071][ T3479] ? irqentry_exit_to_user_mode+0x15/0x30 [ 95.124817][ T3479] do_fast_syscall_32+0x34/0x70 [ 95.129685][ T3479] do_SYSENTER_32+0x1b/0x20 [ 95.134206][ T3479] entry_SYSENTER_compat_after_hwframe+0x4d/0x5c [ 95.140552][ T3479] RIP: 0023:0xf7efb549 [ 95.144618][ T3479] Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 [ 95.164248][ T3479] RSP: 002b:00000000fff9598c EFLAGS: 00000246 ORIG_RAX: 0000000000000165 [ 95.172791][ T3479] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 0000000020000180 [ 95.180777][ T3479] RDX: 0000000000000048 RSI: 0000000003700000 RDI: 0000000001000000 [ 95.188772][ T3479] RBP: 0000000000017252 R08: 0000000000000000 R09: 0000000000000000 [ 95.196802][ T3479] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 95.204788][ T3479] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 95.212785][ T3479] [ 95.216029][ T3479] Kernel Offset: disabled [ 95.220357][ T3479] Rebooting in 86400 seconds..