Warning: Permanently added '10.128.0.38' (ECDSA) to the list of known hosts.
syzkaller login: [   70.417116] IPVS: ftp: loaded support on port[0] = 21
net.ipv6.conf.syz_tun.accept_dad = 0
net.ipv6.conf.syz_tun.router_solicitations = 0
executing program
[   70.675484] PANIC: double fault, error_code: 0x0
[   70.680303] CPU: 0 PID: 6689 Comm: syz-executor368 Not tainted 4.20.0-rc2+ #84
[   70.687693] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   70.698145] ==================================================================
[   70.698150] BUG: KMSAN: uninit-value in do_raw_spin_lock+0x130/0x410
[   70.698154] CPU: 0 PID: 6689 Comm: syz-executor368 Not tainted 4.20.0-rc2+ #84
[   70.698158] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   70.698161] Call Trace:
[   70.698164]  <#DF>
[   70.698167]  dump_stack+0x32d/0x480
[   70.698170]  ? do_raw_spin_lock+0x130/0x410
[   70.698173]  kmsan_report+0x19f/0x300
[   70.698176]  kmsan_internal_check_memory+0x35b/0x3b0
[   70.698179]  ? __msan_poison_alloca+0x1e0/0x270
[   70.698182]  kmsan_check_memory+0xd/0x10
[   70.698185]  do_raw_spin_lock+0x130/0x410
[   70.698189]  ? kmsan_internal_unpoison_shadow+0x83/0xd0
[   70.698192]  _raw_spin_lock+0x27/0x30
[   70.698195]  vprintk_emit+0x1d9/0x8a0
[   70.698198]  vprintk_default+0x90/0xa0
[   70.698201]  vprintk_func+0x26b/0x2a0
[   70.698204]  printk+0x1a3/0x1f0
[   70.698207]  ? kmsan_get_origin_address+0xa/0x360
[   70.698210]  ? kmsan_get_shadow_origin_ptr+0x2c0/0x410
[   70.698213]  show_iret_regs+0x13c/0x540
[   70.698217]  ? kmsan_get_origin_address+0xa/0x360
[   70.698220]  ? __show_regs+0xb2/0x1350
[   70.698223]  ? show_regs+0xaf/0x170
[   70.698226]  __show_regs+0xc9/0x1350
[   70.698229]  ? get_cpu_entry_area+0xc/0x30
[   70.698232]  ? kmsan_get_shadow_origin_ptr+0x2c0/0x410
[   70.698235]  show_regs+0xaf/0x170
[   70.698238]  df_debug+0x86/0xb0
[   70.698241]  do_double_fault+0x362/0x480
[   70.698244]  double_fault+0x1e/0x30
[   70.698247] RIP: 0010:kmsan_get_origin_address+0xa/0x360
[   70.698255] Code: 55 d0 4c 29 e2 0f 85 e5 fe ff ff 48 83 c4 38 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 0b 0f 0b 66 90 55 48 89 e5 41 57 41 56 41 55 <41> 54 53 48 83 ec 10 89 4d d0 89 55 d4 48 89 75 c8 48 89 fb 49 bc
[   70.698258] RSP: 0018:fffffe0000002000 EFLAGS: 00010086
[   70.698264] RAX: 00000000000001a8 RBX: 0000000000000000 RCX: 0000000000000001
[   70.698268] RDX: 0000000000000001 RSI: 0000000000000088 RDI: fffffe0000002150
[   70.698272] RBP: fffffe0000002018 R08: 0000000000000000 R09: 0000000000000000
[   70.698276] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000088
[   70.698280] R13: fffffe00000021c0 R14: fffffe00000021a8 R15: fffffe00000021a8
[   70.698282]  </#DF>
[   70.698285]  <ENTRY_TRAMPOLINE>
[   70.698288]  kmsan_memmove_origins+0xbd/0x1c0
[   70.698292]  ? kmsan_memmove_shadow+0xad/0xd0
[   70.698295]  __msan_memmove+0x6c/0x80
[   70.698298]  fixup_bad_iret+0x9b/0x120
[   70.698300]  error_entry+0xad/0xc0
[   70.698303] RIP: 0000:0x1019f
[   70.698306] Code: Bad RIP value.
[   70.698309] RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
[   70.698316] RAX: 0000000000000000 RBX: ffffffff8b000e58 RCX: 0000000000000000
[   70.698320] RDX: 0000000000000246 RSI: 0000000000000000 RDI: 0000000000000000
[   70.698333] RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000004037f0
[   70.698337] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[   70.698341] R13: 00000000004037f0 R14: 0000000000000000 R15: 0000000000000000
[   70.698344]  ? general_protection+0x8/0x30
[   70.698347]  ? general_protection+0x8/0x30
[   70.698350]  </ENTRY_TRAMPOLINE>
[   70.698353] 
[   70.698356] Local variable description: ----v.addr.i.i@do_raw_spin_lock
[   70.698359] Variable was created at:
[   70.698363]  do_raw_spin_lock+0x62/0x410
[   70.698365]  _raw_spin_lock+0x27/0x30
[   70.698368] 
[   70.698371] Bytes 0-7 of 8 are uninitialized
[   70.698375] Memory access of size 8 starts at fffffe00000099f8
[   70.698379] ==================================================================
[   70.698382] Disabling lock debugging due to kernel taint
[   70.698386] Kernel panic - not syncing: panic_on_warn set ...
[   70.698390] CPU: 0 PID: 6689 Comm: syz-executor368 Tainted: G    B             4.20.0-rc2+ #84
[   70.698395] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   70.698397] Call Trace:
[   70.698400]  <#DF>
[   70.698403]  dump_stack+0x32d/0x480
[   70.698406]  panic+0x624/0xc08
[   70.698409]  kmsan_report+0x300/0x300
[   70.698412]  kmsan_internal_check_memory+0x35b/0x3b0
[   70.698415]  ? __msan_poison_alloca+0x1e0/0x270
[   70.698418]  kmsan_check_memory+0xd/0x10
[   70.698422]  do_raw_spin_lock+0x130/0x410
[   70.698425]  ? kmsan_internal_unpoison_shadow+0x83/0xd0
[   70.698428]  _raw_spin_lock+0x27/0x30
[   70.698431]  vprintk_emit+0x1d9/0x8a0
[   70.698434]  vprintk_default+0x90/0xa0
[   70.698437]  vprintk_func+0x26b/0x2a0
[   70.698440]  printk+0x1a3/0x1f0
[   70.698443]  ? kmsan_get_origin_address+0xa/0x360
[   70.698446]  ? kmsan_get_shadow_origin_ptr+0x2c0/0x410
[   70.698449]  show_iret_regs+0x13c/0x540
[   70.698453]  ? kmsan_get_origin_address+0xa/0x360
[   70.698456]  ? __show_regs+0xb2/0x1350
[   70.698459]  ? show_regs+0xaf/0x170
[   70.698462]  __show_regs+0xc9/0x1350
[   70.698465]  ? get_cpu_entry_area+0xc/0x30
[   70.698468]  ? kmsan_get_shadow_origin_ptr+0x2c0/0x410
[   70.698471]  show_regs+0xaf/0x170
[   70.698474]  df_debug+0x86/0xb0
[   70.698477]  do_double_fault+0x362/0x480
[   70.698480]  double_fault+0x1e/0x30
[   70.698483] RIP: 0010:kmsan_get_origin_address+0xa/0x360
[   70.698490] Code: 55 d0 4c 29 e2 0f 85 e5 fe ff ff 48 83 c4 38 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 0b 0f 0b 66 90 55 48 89 e5 41 57 41 56 41 55 <41> 54 53 48 83 ec 10 89 4d d0 89 55 d4 48 89 75 c8 48 89 fb 49 bc
[   70.698494] RSP: 0018:fffffe0000002000 EFLAGS: 00010086
[   70.698499] RAX: 00000000000001a8 RBX: 0000000000000000 RCX: 0000000000000001
[   70.698503] RDX: 0000000000000001 RSI: 0000000000000088 RDI: fffffe0000002150
[   70.698507] RBP: fffffe0000002018 R08: 0000000000000000 R09: 0000000000000000
[   70.698511] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000088
[   70.698515] R13: fffffe00000021c0 R14: fffffe00000021a8 R15: fffffe00000021a8
[   70.698518]  </#DF>
[   70.698520]  <ENTRY_TRAMPOLINE>
[   70.698524]  kmsan_memmove_origins+0xbd/0x1c0
[   70.698527]  ? kmsan_memmove_shadow+0xad/0xd0
[   70.698530]  __msan_memmove+0x6c/0x80
[   70.698533]  fixup_bad_iret+0x9b/0x120
[   70.698536]  error_entry+0xad/0xc0
[   70.698538] RIP: 0000:0x1019f
[   70.698541] Code: Bad RIP value.
[   70.698545] RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
[   70.698551] RAX: 0000000000000000 RBX: ffffffff8b000e58 RCX: 0000000000000000
[   70.698555] RDX: 0000000000000246 RSI: 0000000000000000 RDI: 0000000000000000
[   70.698559] RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000004037f0
[   70.698563] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[   70.698567] R13: 00000000004037f0 R14: 0000000000000000 R15: 0000000000000000
[   70.698570]  ? general_protection+0x8/0x30
[   70.698573]  ? general_protection+0x8/0x30
[   70.698576]  </ENTRY_TRAMPOLINE>
[   70.699593] Kernel Offset: disabled