[?25l[?1c7[ ok 8[?25h[?0c. [ 109.801540][ T32] audit: type=1800 audit(1582497154.854:25): pid=11048 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 109.827257][ T32] audit: type=1800 audit(1582497154.884:26): pid=11048 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 109.874662][ T32] audit: type=1800 audit(1582497154.914:27): pid=11048 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.146' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 122.234405][T11201] IPVS: ftp: loaded support on port[0] = 21 [ 122.300025][T11201] ===================================================== [ 122.307052][T11201] BUG: KMSAN: uninit-value in ethnl_update_bitset32+0x2c85/0x3860 [ 122.314849][T11201] CPU: 0 PID: 11201 Comm: syz-executor386 Not tainted 5.6.0-rc2-syzkaller #0 [ 122.323611][T11201] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 122.333674][T11201] Call Trace: [ 122.336966][T11201] dump_stack+0x1c9/0x220 [ 122.341287][T11201] kmsan_report+0xf7/0x1e0 [ 122.345691][T11201] __msan_warning+0x58/0xa0 [ 122.350194][T11201] ethnl_update_bitset32+0x2c85/0x3860 [ 122.355654][T11201] ? kmsan_get_metadata+0x11d/0x180 [ 122.362663][T11201] ? kmsan_memcpy_memmove_metadata+0x10c/0x2e0 [ 122.368824][T11201] ? kmsan_memcpy_metadata+0xb/0x10 [ 122.374015][T11201] ? __msan_memcpy+0x43/0x50 [ 122.378613][T11201] ethnl_update_bitset+0x11c/0x130 [ 122.383759][T11201] ethnl_set_linkmodes+0x9f9/0x1430 [ 122.388974][T11201] ? kmsan_get_metadata+0x11d/0x180 [ 122.394166][T11201] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 122.399963][T11201] ? linkmodes_fill_reply+0x5c0/0x5c0 [ 122.405319][T11201] genl_rcv_msg+0x205e/0x2460 [ 122.410002][T11201] netlink_rcv_skb+0x451/0x650 [ 122.414750][T11201] ? genl_unbind+0x380/0x380 [ 122.419370][T11201] genl_rcv+0x63/0x80 [ 122.423350][T11201] netlink_unicast+0xf9e/0x1100 [ 122.428187][T11201] ? genl_pernet_exit+0x90/0x90 [ 122.433023][T11201] netlink_sendmsg+0x1246/0x14d0 [ 122.437961][T11201] ? netlink_getsockopt+0x1440/0x1440 [ 122.443316][T11201] ____sys_sendmsg+0x12b6/0x1350 [ 122.448251][T11201] __sys_sendmsg+0x451/0x5f0 [ 122.452836][T11201] ? __fpregs_load_activate+0x38c/0x3c0 [ 122.458365][T11201] ? kmsan_get_metadata+0x11d/0x180 [ 122.463572][T11201] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 122.469373][T11201] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 122.475426][T11201] ? prepare_exit_to_usermode+0x1ca/0x520 [ 122.481137][T11201] __se_sys_sendmsg+0x97/0xb0 [ 122.485800][T11201] __x64_sys_sendmsg+0x4a/0x70 [ 122.490547][T11201] do_syscall_64+0xb8/0x160 [ 122.495037][T11201] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 122.500922][T11201] RIP: 0033:0x445239 [ 122.504806][T11201] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 0f 83 8b d2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 122.524418][T11201] RSP: 002b:00007ffc0a878c28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 122.532817][T11201] RAX: ffffffffffffffda RBX: 00007ffc0a878c40 RCX: 0000000000445239 [ 122.541051][T11201] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 122.549027][T11201] RBP: 0000000000000003 R08: 0000000000000000 R09: 00000000bb1414ac [ 122.557007][T11201] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 122.565116][T11201] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 122.573089][T11201] [ 122.575399][T11201] Uninit was created at: [ 122.579632][T11201] kmsan_internal_poison_shadow+0x66/0xd0 [ 122.585333][T11201] kmsan_slab_alloc+0x8a/0xe0 [ 122.590011][T11201] __kmalloc_node_track_caller+0xb40/0x1200 [ 122.596000][T11201] __alloc_skb+0x2fd/0xac0 [ 122.600473][T11201] netlink_sendmsg+0x7d3/0x14d0 [ 122.605321][T11201] ____sys_sendmsg+0x12b6/0x1350 [ 122.610267][T11201] __sys_sendmsg+0x451/0x5f0 [ 122.614853][T11201] __se_sys_sendmsg+0x97/0xb0 [ 122.619545][T11201] __x64_sys_sendmsg+0x4a/0x70 [ 122.624311][T11201] do_syscall_64+0xb8/0x160 [ 122.628809][T11201] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 122.634696][T11201] ===================================================== [ 122.641631][T11201] Disabling lock debugging due to kernel taint [ 122.647776][T11201] Kernel panic - not syncing: panic_on_warn set ... [ 122.654387][T11201] CPU: 0 PID: 11201 Comm: syz-executor386 Tainted: G B 5.6.0-rc2-syzkaller #0 [ 122.664520][T11201] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 122.674561][T11201] Call Trace: [ 122.677846][T11201] dump_stack+0x1c9/0x220 [ 122.682162][T11201] panic+0x3d5/0xc3e [ 122.686085][T11201] kmsan_report+0x1df/0x1e0 [ 122.690576][T11201] __msan_warning+0x58/0xa0 [ 122.695071][T11201] ethnl_update_bitset32+0x2c85/0x3860 [ 122.701044][T11201] ? kmsan_get_metadata+0x11d/0x180 [ 122.706240][T11201] ? kmsan_memcpy_memmove_metadata+0x10c/0x2e0 [ 122.712391][T11201] ? kmsan_memcpy_metadata+0xb/0x10 [ 122.717576][T11201] ? __msan_memcpy+0x43/0x50 [ 122.722167][T11201] ethnl_update_bitset+0x11c/0x130 [ 122.727289][T11201] ethnl_set_linkmodes+0x9f9/0x1430 [ 122.732487][T11201] ? kmsan_get_metadata+0x11d/0x180 [ 122.737682][T11201] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 122.743476][T11201] ? linkmodes_fill_reply+0x5c0/0x5c0 [ 122.748840][T11201] genl_rcv_msg+0x205e/0x2460 [ 122.753542][T11201] netlink_rcv_skb+0x451/0x650 [ 122.758301][T11201] ? genl_unbind+0x380/0x380 [ 122.762880][T11201] genl_rcv+0x63/0x80 [ 122.766856][T11201] netlink_unicast+0xf9e/0x1100 [ 122.771715][T11201] ? genl_pernet_exit+0x90/0x90 [ 122.776568][T11201] netlink_sendmsg+0x1246/0x14d0 [ 122.781510][T11201] ? netlink_getsockopt+0x1440/0x1440 [ 122.786877][T11201] ____sys_sendmsg+0x12b6/0x1350 [ 122.791857][T11201] __sys_sendmsg+0x451/0x5f0 [ 122.796465][T11201] ? __fpregs_load_activate+0x38c/0x3c0 [ 122.801996][T11201] ? kmsan_get_metadata+0x11d/0x180 [ 122.807196][T11201] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 122.812986][T11201] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 122.819035][T11201] ? prepare_exit_to_usermode+0x1ca/0x520 [ 122.824745][T11201] __se_sys_sendmsg+0x97/0xb0 [ 122.829421][T11201] __x64_sys_sendmsg+0x4a/0x70 [ 122.834184][T11201] do_syscall_64+0xb8/0x160 [ 122.838674][T11201] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 122.844547][T11201] RIP: 0033:0x445239 [ 122.848439][T11201] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 0f 83 8b d2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 122.868031][T11201] RSP: 002b:00007ffc0a878c28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 122.876498][T11201] RAX: ffffffffffffffda RBX: 00007ffc0a878c40 RCX: 0000000000445239 [ 122.884639][T11201] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 122.892621][T11201] RBP: 0000000000000003 R08: 0000000000000000 R09: 00000000bb1414ac [ 122.900719][T11201] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 122.908682][T11201] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 122.918264][T11201] Kernel Offset: 0x27600000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 122.929896][T11201] Rebooting in 86400 seconds..