forked to background, child pid 3046 no interfaces have a carrier [ 67.974510][ T3047] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.999202][ T3047] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.240' (ECDSA) to the list of known hosts. syzkaller login: [ 95.144360][ T1471] cfg80211: failed to load regulatory.db 2022/05/07 07:38:00 fuzzer started [ 100.900031][ T3464] ===================================================== [ 100.907066][ T3464] BUG: KMSAN: uninit-value in string+0x3cf/0x6f0 [ 100.913413][ T3464] string+0x3cf/0x6f0 [ 100.917413][ T3464] vsnprintf+0x2222/0x3650 [ 100.921847][ T3464] seq_printf+0x314/0x4f0 [ 100.926304][ T3464] show_cpuinfo+0x305/0x1860 [ 100.930915][ T3464] seq_read_iter+0xaac/0x2150 [ 100.935608][ T3464] proc_reg_read_iter+0x385/0x480 [ 100.940654][ T3464] vfs_read+0xec1/0x17b0 [ 100.944917][ T3464] ksys_read+0x28b/0x510 [ 100.949178][ T3464] __x64_sys_read+0xdb/0x120 [ 100.953799][ T3464] do_syscall_64+0x51/0xa0 [ 100.958236][ T3464] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 100.964146][ T3464] [ 100.966461][ T3464] Local variable page created at: [ 100.971475][ T3464] get_futex_key+0xc5/0x2b90 [ 100.976089][ T3464] futex_wait_setup+0x140/0x560 [ 100.980951][ T3464] [ 100.983381][ T3464] CPU: 0 PID: 3464 Comm: syz-fuzzer Not tainted 5.18.0-rc4-syzkaller #0 [ 100.991735][ T3464] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 101.001824][ T3464] ===================================================== [ 101.008756][ T3464] Disabling lock debugging due to kernel taint [ 101.015808][ T3464] Kernel panic - not syncing: kmsan.panic set ... [ 101.022249][ T3464] CPU: 0 PID: 3464 Comm: syz-fuzzer Tainted: G B 5.18.0-rc4-syzkaller #0 [ 101.032015][ T3464] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 101.042085][ T3464] Call Trace: [ 101.045479][ T3464] [ 101.048421][ T3464] dump_stack_lvl+0x1ff/0x28e [ 101.053134][ T3464] dump_stack+0x25/0x28 [ 101.057418][ T3464] panic+0x4fe/0xc73 [ 101.061364][ T3464] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 101.067566][ T3464] ? add_taint+0x181/0x210 [ 101.072006][ T3464] ? console_unlock+0x1c00/0x2130 [ 101.077070][ T3464] ? _raw_spin_unlock_irqrestore+0x78/0xb0 [ 101.082915][ T3464] kmsan_report+0x2e6/0x2f0 [ 101.087451][ T3464] ? is_module_text_address+0x275/0x300 [ 101.093031][ T3464] ? __msan_warning+0x94/0x110 [ 101.097825][ T3464] ? string+0x3cf/0x6f0 [ 101.101996][ T3464] ? vsnprintf+0x2222/0x3650 [ 101.106600][ T3464] ? seq_printf+0x314/0x4f0 [ 101.111143][ T3464] ? show_cpuinfo+0x305/0x1860 [ 101.115934][ T3464] ? seq_read_iter+0xaac/0x2150 [ 101.120808][ T3464] ? proc_reg_read_iter+0x385/0x480 [ 101.126026][ T3464] ? vfs_read+0xec1/0x17b0 [ 101.130485][ T3464] ? ksys_read+0x28b/0x510 [ 101.134926][ T3464] ? __x64_sys_read+0xdb/0x120 [ 101.139714][ T3464] ? do_syscall_64+0x51/0xa0 [ 101.144322][ T3464] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 101.150407][ T3464] ? kmsan_get_metadata+0x33/0x220 [ 101.155533][ T3464] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 101.161351][ T3464] ? format_decode+0x61/0x1990 [ 101.166134][ T3464] ? filter_irq_stacks+0xb5/0x230 [ 101.171185][ T3464] ? __stack_depot_save+0x21/0x4b0 [ 101.176328][ T3464] ? kmsan_get_metadata+0x33/0x220 [ 101.181458][ T3464] ? kmsan_internal_set_shadow_origin+0x62/0xe0 [ 101.187730][ T3464] ? kmsan_get_metadata+0x33/0x220 [ 101.192855][ T3464] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 101.198696][ T3464] __msan_warning+0x94/0x110 [ 101.203311][ T3464] string+0x3cf/0x6f0 [ 101.207308][ T3464] ? kmsan_get_metadata+0x33/0x220 [ 101.212435][ T3464] vsnprintf+0x2222/0x3650 [ 101.216886][ T3464] seq_printf+0x314/0x4f0 [ 101.221254][ T3464] show_cpuinfo+0x305/0x1860 [ 101.225880][ T3464] ? c_next+0x230/0x230 [ 101.230055][ T3464] seq_read_iter+0xaac/0x2150 [ 101.234754][ T3464] ? vfs_read+0x884/0x17b0 [ 101.239210][ T3464] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 101.245036][ T3464] ? seq_read+0x7c0/0x7c0 [ 101.249378][ T3464] proc_reg_read_iter+0x385/0x480 [ 101.254425][ T3464] ? proc_reg_write+0x560/0x560 [ 101.259292][ T3464] vfs_read+0xec1/0x17b0 [ 101.263578][ T3464] ksys_read+0x28b/0x510 [ 101.267854][ T3464] __x64_sys_read+0xdb/0x120 [ 101.272473][ T3464] do_syscall_64+0x51/0xa0 [ 101.276910][ T3464] ? exc_page_fault+0x76/0x150 [ 101.281699][ T3464] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 101.287610][ T3464] RIP: 0033:0x49dfbb [ 101.291511][ T3464] Code: e8 aa 4b fc ff eb 88 cc cc cc cc cc cc cc cc e8 bb 8f fc ff 48 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30 [ 101.311142][ T3464] RSP: 002b:000000c0002433b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 101.319578][ T3464] RAX: ffffffffffffffda RBX: 000000c000022800 RCX: 000000000049dfbb [ 101.327566][ T3464] RDX: 0000000000001000 RSI: 000000c000166000 RDI: 0000000000000006 [ 101.335545][ T3464] RBP: 000000c000243408 R08: 0000000000000001 R09: 000000c000050a80 [ 101.343519][ T3464] R10: 0000000000001000 R11: 0000000000000212 R12: 000000c000166000 [ 101.351493][ T3464] R13: 0000000000000000 R14: 000000c0000001a0 R15: 0000000000000040 [ 101.359481][ T3464] [ 101.362687][ T3464] Kernel Offset: disabled [ 101.367039][ T3464] Rebooting in 86400 seconds..