[ 51.846275] audit: type=1800 audit(1541494092.894:26): pid=5981 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0
[ 51.866022] audit: type=1800 audit(1541494092.894:27): pid=5981 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0
[ 51.885830] audit: type=1800 audit(1541494092.914:28): pid=5981 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0
[....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[ 53.750743] audit: type=1800 audit(1541494094.794:29): pid=5981 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0
Debian GNU/Linux 7 syzkaller ttyS0
Warning: Permanently added '10.128.10.11' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [ 88.073750] PANIC: double fault, error_code: 0x0
[ 88.078598] CPU: 0 PID: 6132 Comm: syz-executor971 Not tainted 4.19.0+ #77
[ 88.085614] ==================================================================
[ 88.093082] BUG: KMSAN: uninit-value in irq_work_claim+0x153/0x390
[ 88.099391] CPU: 0 PID: 6132 Comm: syz-executor971 Not tainted 4.19.0+ #77
[ 88.106387] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 88.115730] Call Trace:
[ 88.118298] <#DF>
[ 88.120439] dump_stack+0x32d/0x480
[ 88.124053] ? irq_work_claim+0x153/0x390
[ 88.128190] kmsan_report+0x1a2/0x2e0
[ 88.131986] kmsan_internal_check_memory+0x34c/0x430
[ 88.137088] kmsan_check_memory+0xb/0x10
[ 88.141152] irq_work_claim+0x153/0x390
[ 88.145137] irq_work_queue+0x44/0x280
[ 88.149018] vprintk_emit+0x693/0x790
[ 88.152823] vprintk_default+0x90/0xa0
[ 88.156703] vprintk_func+0x26b/0x2a0
[ 88.160496] printk+0x1a3/0x1f0
[ 88.163776] dump_stack_print_info+0x2c4/0x3c0
[ 88.168355] show_regs_print_info+0x37/0x40
[ 88.172820] show_regs+0x38/0x170
[ 88.176270] df_debug+0x86/0xb0
[ 88.179537] do_double_fault+0x362/0x480
[ 88.183591] double_fault+0x1e/0x30
[ 88.187210] RIP: 0010:kmsan_get_origin_address+0xa/0x370
[ 88.192649] Code: eb fe 0f 0b 66 90 66 2e 0f 1f 84 00 00 00 00 00 eb fe 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 57 41 56 41 55 <41> 54 53 48 83 ec 10 48 89 75 c8 48 89 fb 49 bc 00 00 00 00 00 78
[ 88.211540] RSP: 0018:fffffe0000002000 EFLAGS: 00010086
[ 88.216888] RAX: 00000000000001a8 RBX: 0000000000000000 RCX: 0000000000000001
[ 88.224229] RDX: 0000000000000001 RSI: 0000000000000088 RDI: fffffe0000002150
[ 88.231566] RBP: fffffe0000002018 R08: 0000000000000000 R09: 0000000000000000
[ 88.238820] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000088
[ 88.246078] R13: fffffe00000021c0 R14: fffffe00000021a8 R15: fffffe00000021a8
[ 88.253340]
[ 88.255565]
[ 88.258838] kmsan_memmove_origins+0xbd/0x1d0
[ 88.263338] ? kmsan_memmove_shadow+0xad/0xe0
[ 88.267826] __msan_memmove+0x6c/0x80
[ 88.271615] fixup_bad_iret+0x9b/0x130
[ 88.275504] error_entry+0xad/0xc0
[ 88.279044] RIP: 0000: (null)
[ 88.282977] Code: Bad RIP value.
[ 88.286331] RSP: 401440:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000302f2e
[ 88.294214] RAX: 0000000000000000 RBX: ffffffff8ae00e58 RCX: 0000000000000000
[ 88.301477] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000003100000005
[ 88.309074] RBP: 0000000000000000 R08: 0000006e0000005b R09: 0000000000000000
[ 88.316450] R10: 00000000004009ae R11: 0000000044000004 R12: 0000006e0000005b
[ 88.323712] R13: 0000000000000000 R14: 00000000004009ae R15: 0000000044000004
[ 88.330978] ? general_protection+0x8/0x30
[ 88.335196] ? general_protection+0x8/0x30
[ 88.339414]
[ 88.342757]
[ 88.344397] Local variable description: ----__ai_ptr@irq_work_claim
[ 88.350786] Variable was created at:
[ 88.354496] irq_work_claim+0x4b/0x390
[ 88.358374] irq_work_queue+0x44/0x280
[ 88.362239]
[ 88.363865] Byte 7 of 8 is uninitialized
[ 88.367903] Memory access of size 8 starts at fffffe000000aa38
[ 88.373853] ==================================================================
[ 88.381186] Disabling lock debugging due to kernel taint
[ 88.386612] Kernel panic - not syncing: panic_on_warn set ...
[ 88.386612]
[ 88.393955] CPU: 0 PID: 6132 Comm: syz-executor971 Tainted: G B 4.19.0+ #77
[ 88.402331] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 88.411669] Call Trace:
[ 88.414238] <#DF>
[ 88.416373] dump_stack+0x32d/0x480
[ 88.419988] panic+0x57e/0xb28
[ 88.423176] ? __msan_metadata_ptr_for_store_1+0x13/0x20
[ 88.428613] kmsan_report+0x2d3/0x2e0
[ 88.432402] kmsan_internal_check_memory+0x34c/0x430
[ 88.437496] kmsan_check_memory+0xb/0x10
[ 88.441536] irq_work_claim+0x153/0x390
[ 88.445501] irq_work_queue+0x44/0x280
[ 88.449382] vprintk_emit+0x693/0x790
[ 88.453198] vprintk_default+0x90/0xa0
[ 88.457075] vprintk_func+0x26b/0x2a0
[ 88.460863] printk+0x1a3/0x1f0
[ 88.464149] dump_stack_print_info+0x2c4/0x3c0
[ 88.468717] show_regs_print_info+0x37/0x40
[ 88.473028] show_regs+0x38/0x170
[ 88.476468] df_debug+0x86/0xb0
[ 88.479734] do_double_fault+0x362/0x480
[ 88.483786] double_fault+0x1e/0x30
[ 88.487396] RIP: 0010:kmsan_get_origin_address+0xa/0x370
[ 88.492824] Code: eb fe 0f 0b 66 90 66 2e 0f 1f 84 00 00 00 00 00 eb fe 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 57 41 56 41 55 <41> 54 53 48 83 ec 10 48 89 75 c8 48 89 fb 49 bc 00 00 00 00 00 78
[ 88.511708] RSP: 0018:fffffe0000002000 EFLAGS: 00010086
[ 88.517058] RAX: 00000000000001a8 RBX: 0000000000000000 RCX: 0000000000000001
[ 88.524309] RDX: 0000000000000001 RSI: 0000000000000088 RDI: fffffe0000002150
[ 88.531561] RBP: fffffe0000002018 R08: 0000000000000000 R09: 0000000000000000
[ 88.538824] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000088
[ 88.546077] R13: fffffe00000021c0 R14: fffffe00000021a8 R15: fffffe00000021a8
[ 88.553339]
[ 88.555558]
[ 88.558841] kmsan_memmove_origins+0xbd/0x1d0
[ 88.563320] ? kmsan_memmove_shadow+0xad/0xe0
[ 88.567802] __msan_memmove+0x6c/0x80
[ 88.571585] fixup_bad_iret+0x9b/0x130
[ 88.575460] error_entry+0xad/0xc0
[ 88.578987] RIP: 0000: (null)
[ 88.582870] Code: Bad RIP value.
[ 88.586214] RSP: 401440:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000302f2e
[ 88.594077] RAX: 0000000000000000 RBX: ffffffff8ae00e58 RCX: 0000000000000000
[ 88.601347] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000003100000005
[ 88.608605] RBP: 0000000000000000 R08: 0000006e0000005b R09: 0000000000000000
[ 88.615861] R10: 00000000004009ae R11: 0000000044000004 R12: 0000006e0000005b
[ 88.623112] R13: 0000000000000000 R14: 00000000004009ae R15: 0000000044000004
[ 88.630502] ? general_protection+0x8/0x30
[ 88.634741] ? general_protection+0x8/0x30
[ 88.639127]
[ 88.643529] Kernel Offset: disabled
[ 88.647151] Rebooting in 86400 seconds..