Warning: Permanently added '10.128.0.195' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   87.296395][   T32] audit: type=1400 audit(1589645078.015:8): avc:  denied  { execmem } for  pid=8807 comm="syz-executor483" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
[   87.304777][ T8807] =====================================================
[   87.324358][ T8807] BUG: KMSAN: uninit-value in strnlen+0xf9/0x170
[   87.330845][ T8807] CPU: 0 PID: 8807 Comm: syz-executor483 Not tainted 5.7.0-rc4-syzkaller #0
[   87.339728][ T8807] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   87.349838][ T8807] Call Trace:
[   87.353128][ T8807]  dump_stack+0x1c9/0x220
[   87.357460][ T8807]  kmsan_report+0xf7/0x1e0
[   87.361961][ T8807]  __msan_warning+0x58/0xa0
[   87.366565][ T8807]  strnlen+0xf9/0x170
[   87.370538][ T8807]  __dev_get_by_name+0x75/0x2b0
[   87.375381][ T8807]  ? mutex_lock+0x38/0x80
[   87.379839][ T8807]  ax25_setsockopt+0xfa3/0x1170
[   87.384691][ T8807]  ? kmsan_get_shadow_origin_ptr+0x81/0xb0
[   87.390595][ T8807]  ? ax25_shutdown+0x30/0x30
[   87.395175][ T8807]  __compat_sys_setsockopt+0x4ed/0x910
[   87.400627][ T8807]  ? kmsan_get_metadata+0x4f/0x180
[   87.405728][ T8807]  __se_compat_sys_setsockopt+0xdd/0x100
[   87.411350][ T8807]  __ia32_compat_sys_setsockopt+0x62/0x80
[   87.417051][ T8807]  ? get_compat_bpf_fprog+0x290/0x290
[   87.422523][ T8807]  do_fast_syscall_32+0x3bf/0x6d0
[   87.427674][ T8807]  entry_SYSENTER_compat+0x68/0x77
[   87.432770][ T8807] RIP: 0023:0xf7f57dd9
[   87.436868][ T8807] Code: 90 e8 0b 00 00 00 f3 90 0f ae e8 eb f9 8d 74 26 00 89 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90
[   87.456463][ T8807] RSP: 002b:00000000ffae8c1c EFLAGS: 00000217 ORIG_RAX: 000000000000016e
[   87.464949][ T8807] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000101
[   87.473025][ T8807] RDX: 0000000000000019 RSI: 0000000020000000 RDI: 0000000000000004
[   87.481025][ T8807] RBP: 0000000000000012 R08: 0000000000000000 R09: 0000000000000000
[   87.489196][ T8807] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[   87.497156][ T8807] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   87.505258][ T8807] 
[   87.507577][ T8807] Local variable ----devname@ax25_setsockopt created at:
[   87.514590][ T8807]  ax25_setsockopt+0xe6/0x1170
[   87.520771][ T8807]  ax25_setsockopt+0xe6/0x1170
[   87.525687][ T8807] =====================================================
[   87.532605][ T8807] Disabling lock debugging due to kernel taint
[   87.538790][ T8807] Kernel panic - not syncing: panic_on_warn set ...
[   87.545523][ T8807] CPU: 0 PID: 8807 Comm: syz-executor483 Tainted: G    B             5.7.0-rc4-syzkaller #0
[   87.555567][ T8807] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   87.565814][ T8807] Call Trace:
[   87.569098][ T8807]  dump_stack+0x1c9/0x220
[   87.573431][ T8807]  panic+0x3d5/0xc3e
[   87.577358][ T8807]  kmsan_report+0x1df/0x1e0
[   87.581851][ T8807]  __msan_warning+0x58/0xa0
[   87.586341][ T8807]  strnlen+0xf9/0x170
[   87.590316][ T8807]  __dev_get_by_name+0x75/0x2b0
[   87.595171][ T8807]  ? mutex_lock+0x38/0x80
[   87.599493][ T8807]  ax25_setsockopt+0xfa3/0x1170
[   87.604341][ T8807]  ? kmsan_get_shadow_origin_ptr+0x81/0xb0
[   87.610133][ T8807]  ? ax25_shutdown+0x30/0x30
[   87.614751][ T8807]  __compat_sys_setsockopt+0x4ed/0x910
[   87.620198][ T8807]  ? kmsan_get_metadata+0x4f/0x180
[   87.625328][ T8807]  __se_compat_sys_setsockopt+0xdd/0x100
[   87.630980][ T8807]  __ia32_compat_sys_setsockopt+0x62/0x80
[   87.636683][ T8807]  ? get_compat_bpf_fprog+0x290/0x290
[   87.642073][ T8807]  do_fast_syscall_32+0x3bf/0x6d0
[   87.647116][ T8807]  entry_SYSENTER_compat+0x68/0x77
[   87.652246][ T8807] RIP: 0023:0xf7f57dd9
[   87.656506][ T8807] Code: 90 e8 0b 00 00 00 f3 90 0f ae e8 eb f9 8d 74 26 00 89 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90
[   87.676209][ T8807] RSP: 002b:00000000ffae8c1c EFLAGS: 00000217 ORIG_RAX: 000000000000016e
[   87.684628][ T8807] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000101
[   87.692656][ T8807] RDX: 0000000000000019 RSI: 0000000020000000 RDI: 0000000000000004
[   87.700613][ T8807] RBP: 0000000000000012 R08: 0000000000000000 R09: 0000000000000000
[   87.708572][ T8807] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[   87.716719][ T8807] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   87.726186][ T8807] Kernel Offset: 0x12e00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[   87.737813][ T8807] Rebooting in 86400 seconds..