forked to background, child pid 3046 no interfaces have a carrier [ 67.994919][ T3047] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.009327][ T3047] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.127' (ECDSA) to the list of known hosts. syzkaller login: [ 95.124555][ T25] cfg80211: failed to load regulatory.db 2022/05/07 11:29:34 fuzzer started [ 100.632466][ T3468] ===================================================== [ 100.639487][ T3468] BUG: KMSAN: uninit-value in string+0x3cf/0x6f0 [ 100.645832][ T3468] string+0x3cf/0x6f0 [ 100.649830][ T3468] vsnprintf+0x2222/0x3650 [ 100.654269][ T3468] seq_printf+0x314/0x4f0 [ 100.658614][ T3468] show_cpuinfo+0x305/0x1860 [ 100.663238][ T3468] seq_read_iter+0xaac/0x2150 [ 100.667935][ T3468] proc_reg_read_iter+0x385/0x480 [ 100.672981][ T3468] vfs_read+0xec1/0x17b0 [ 100.677248][ T3468] ksys_read+0x28b/0x510 [ 100.681512][ T3468] __x64_sys_read+0xdb/0x120 [ 100.686131][ T3468] do_syscall_64+0x51/0xa0 [ 100.690586][ T3468] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 100.696495][ T3468] [ 100.698811][ T3468] Local variable page created at: [ 100.703819][ T3468] get_futex_key+0xc5/0x2b90 [ 100.708429][ T3468] futex_wait_setup+0x140/0x560 [ 100.713289][ T3468] [ 100.715620][ T3468] CPU: 1 PID: 3468 Comm: syz-fuzzer Not tainted 5.18.0-rc4-syzkaller #0 [ 100.723972][ T3468] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 100.734047][ T3468] ===================================================== [ 100.740978][ T3468] Disabling lock debugging due to kernel taint [ 100.748125][ T3468] Kernel panic - not syncing: kmsan.panic set ... [ 100.754554][ T3468] CPU: 1 PID: 3468 Comm: syz-fuzzer Tainted: G B 5.18.0-rc4-syzkaller #0 [ 100.764304][ T3468] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 100.774361][ T3468] Call Trace: [ 100.777635][ T3468] [ 100.780559][ T3468] dump_stack_lvl+0x1ff/0x28e [ 100.785260][ T3468] dump_stack+0x25/0x28 [ 100.789425][ T3468] panic+0x4fe/0xc73 [ 100.793405][ T3468] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 100.799585][ T3468] ? add_taint+0x181/0x210 [ 100.804009][ T3468] ? console_unlock+0x1c00/0x2130 [ 100.809052][ T3468] ? _raw_spin_unlock_irqrestore+0x78/0xb0 [ 100.814877][ T3468] kmsan_report+0x2e6/0x2f0 [ 100.819395][ T3468] ? is_module_text_address+0x275/0x300 [ 100.824959][ T3468] ? __msan_warning+0x94/0x110 [ 100.829747][ T3468] ? string+0x3cf/0x6f0 [ 100.833911][ T3468] ? vsnprintf+0x2222/0x3650 [ 100.838509][ T3468] ? seq_printf+0x314/0x4f0 [ 100.843022][ T3468] ? show_cpuinfo+0x305/0x1860 [ 100.847811][ T3468] ? seq_read_iter+0xaac/0x2150 [ 100.852672][ T3468] ? proc_reg_read_iter+0x385/0x480 [ 100.857884][ T3468] ? vfs_read+0xec1/0x17b0 [ 100.862321][ T3468] ? ksys_read+0x28b/0x510 [ 100.866755][ T3468] ? __x64_sys_read+0xdb/0x120 [ 100.871536][ T3468] ? do_syscall_64+0x51/0xa0 [ 100.876140][ T3468] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 100.882222][ T3468] ? kmsan_get_metadata+0x33/0x220 [ 100.887347][ T3468] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 100.893167][ T3468] ? format_decode+0x61/0x1990 [ 100.897948][ T3468] ? filter_irq_stacks+0xb5/0x230 [ 100.903004][ T3468] ? __stack_depot_save+0x21/0x4b0 [ 100.908179][ T3468] ? kmsan_get_metadata+0x33/0x220 [ 100.913320][ T3468] ? kmsan_internal_set_shadow_origin+0x62/0xe0 [ 100.919592][ T3468] ? kmsan_get_metadata+0x33/0x220 [ 100.924712][ T3468] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 100.930545][ T3468] __msan_warning+0x94/0x110 [ 100.935177][ T3468] string+0x3cf/0x6f0 [ 100.939176][ T3468] ? kmsan_get_metadata+0x33/0x220 [ 100.944306][ T3468] vsnprintf+0x2222/0x3650 [ 100.948753][ T3468] seq_printf+0x314/0x4f0 [ 100.953111][ T3468] ? kmsan_internal_unpoison_memory+0x10/0x20 [ 100.959256][ T3468] show_cpuinfo+0x305/0x1860 [ 100.963888][ T3468] ? c_next+0x230/0x230 [ 100.968069][ T3468] seq_read_iter+0xaac/0x2150 [ 100.972784][ T3468] ? vfs_read+0x884/0x17b0 [ 100.977244][ T3468] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 100.983078][ T3468] ? seq_read+0x7c0/0x7c0 [ 100.987461][ T3468] proc_reg_read_iter+0x385/0x480 [ 100.992517][ T3468] ? proc_reg_write+0x560/0x560 [ 100.997386][ T3468] vfs_read+0xec1/0x17b0 [ 101.001674][ T3468] ksys_read+0x28b/0x510 [ 101.005967][ T3468] __x64_sys_read+0xdb/0x120 [ 101.010584][ T3468] do_syscall_64+0x51/0xa0 [ 101.015019][ T3468] ? exc_page_fault+0x76/0x150 [ 101.019808][ T3468] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 101.025720][ T3468] RIP: 0033:0x49dfbb [ 101.029612][ T3468] 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 [ 101.049238][ T3468] RSP: 002b:000000c0002433b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 101.057672][ T3468] RAX: ffffffffffffffda RBX: 000000c000020000 RCX: 000000000049dfbb [ 101.065647][ T3468] RDX: 0000000000001000 RSI: 000000c000332000 RDI: 0000000000000006 [ 101.073622][ T3468] RBP: 000000c000243408 R08: 0000000000000001 R09: 000000c000050c00 [ 101.081595][ T3468] R10: 0000000000001000 R11: 0000000000000212 R12: 000000c000332000 [ 101.089569][ T3468] R13: 0000000000000000 R14: 000000c0000001a0 R15: 0000000000000040 [ 101.097556][ T3468] [ 101.100763][ T3468] Kernel Offset: disabled [ 101.105089][ T3468] Rebooting in 86400 seconds..