[ 9.617729][ T22] audit: type=1400 audit(1579433684.387:12): avc: denied { map } for pid=1863 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
Debian GNU/Linux 7 syzkaller ttyS0
Warning: Permanently added '10.128.10.13' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [ 17.859882][ T22] audit: type=1400 audit(1579433692.637:13): avc: denied { map } for pid=1875 comm="syz-executor868" path="/root/syz-executor868536571" dev="sda1" ino=1426 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1
[ 17.878568][ T22] audit: type=1400 audit(1579433692.647:14): avc: denied { create } for pid=1877 comm="syz-executor868" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1
[ 17.899512][ T22] audit: type=1400 audit(1579433692.647:15): avc: denied { map_create } for pid=1877 comm="syz-executor868" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=bpf permissive=1
[ 17.923133][ T22] audit: type=1400 audit(1579433692.647:16): avc: denied { map_read map_write } for pid=1877 comm="syz-executor868" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=bpf permissive=1
[ 17.947255][ T22] audit: type=1400 audit(1579433692.647:17): avc: denied { prog_load } for pid=1877 comm="syz-executor868" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=bpf permissive=1
[ 17.947608][ T1877] netlink: 'syz-executor868': attribute type 1 has an invalid length.
[ 17.970852][ T22] audit: type=1400 audit(1579433692.727:18): avc: denied { prog_run } for pid=1877 comm="syz-executor868" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=bpf permissive=1
[ 17.979128][ T1877] netlink: 'syz-executor868': attribute type 1 has an invalid length.
executing program
[ 18.010367][ T1877] netlink: 'syz-executor868': attribute type 1 has an invalid length.
[ 18.018675][ T1877] netlink: 'syz-executor868': attribute type 1 has an invalid length.
[ 18.026870][ T1877] netlink: 'syz-executor868': attribute type 1 has an invalid length.
[ 18.035145][ T1877] netlink: 'syz-executor868': attribute type 1 has an invalid length.
[ 18.080028][ T1878] BUG: unable to handle page fault for address: ffffed10189029ff
[ 18.087895][ T1878] #PF: supervisor read access in kernel mode
[ 18.093850][ T1878] #PF: error_code(0x0000) - not-present page
[ 18.099801][ T1878] PGD 21fff7067 P4D 21fff7067 PUD 21fff6067 PMD 0
[ 18.106304][ T1878] Oops: 0000 [#1] PREEMPT SMP KASAN
[ 18.111491][ T1878] CPU: 0 PID: 1878 Comm: syz-executor868 Not tainted 5.4.13-syzkaller-00760-gb0b02162a4b8 #0
[ 18.121613][ T1878] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 18.131662][ T1878] RIP: 0010:do_xdp_generic+0x603/0x1500
[ 18.137193][ T1878] Code: 00 00 00 00 fc ff df 42 80 3c 30 00 74 05 e8 c4 a7 96 fe 4c 89 a4 24 d8 00 00 00 4c 89 ac 24 18 01 00 00 4c 89 f8 48 c1 e8 03 <42> 80 3c 30 00 74 08 4c 89 ff e8 fe a6 96 fe 49 8b 37 83 e6 01 31
[ 18.156786][ T1878] RSP: 0018:ffff8881d004f680 EFLAGS: 00010a07
[ 18.163007][ T1878] RAX: 1ffff110189029ff RBX: ffff8881d004f788 RCX: 1ffff1103a009ef1
[ 18.170956][ T1878] RDX: ffff8881d22d9574 RSI: 0000000000000000 RDI: ffff8881d004f798
[ 18.179027][ T1878] RBP: ffff8881d004f830 R08: ffffffff82da194b R09: ffffed1038900a5d
[ 18.186983][ T1878] R10: ffffed1038900a5d R11: 0000000000000000 R12: ffff8880c480512a
[ 18.194934][ T1878] R13: ffff8881c4805000 R14: dffffc0000000000 R15: ffff8880c4814fff
[ 18.202887][ T1878] FS: 00000000023a3880(0000) GS:ffff8881dba00000(0000) knlGS:0000000000000000
[ 18.211792][ T1878] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 18.218350][ T1878] CR2: ffffed10189029ff CR3: 00000001d47bf001 CR4: 00000000001606f0
[ 18.226325][ T1878] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 18.234273][ T1878] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 18.242218][ T1878] Call Trace:
[ 18.245500][ T1878] ? __kasan_check_write+0x14/0x20
[ 18.250593][ T1878] ? _copy_from_iter+0x886/0xaa0
[ 18.255504][ T1878] ? generic_xdp_tx+0x4f0/0x4f0
[ 18.260330][ T1878] ? tun_get_user+0x3cd0/0x3cd0
[ 18.265153][ T1878] tun_get_user+0x2498/0x3cd0
[ 18.269821][ T1878] ? __kasan_check_read+0x11/0x20
[ 18.274921][ T1878] ? __alloc_pages_nodemask+0x52d/0x3010
[ 18.280526][ T1878] ? tun_do_read+0x1f10/0x1f10
[ 18.285281][ T1878] ? file_remove_privs+0x630/0x630
[ 18.290366][ T1878] ? pipe_write+0x1005/0x1220
[ 18.295015][ T1878] ? __rcu_read_lock+0x50/0x50
[ 18.299748][ T1878] ? __rcu_read_lock+0x50/0x50
[ 18.304500][ T1878] ? __memcg_kmem_charge_memcg+0x340/0x340
[ 18.310281][ T1878] tun_chr_write_iter+0x134/0x1c0
[ 18.315282][ T1878] do_iter_readv_writev+0x5fa/0x890
[ 18.320472][ T1878] ? vfs_dedupe_file_range+0xa00/0xa00
[ 18.325902][ T1878] ? security_file_permission+0x157/0x350
[ 18.331609][ T1878] ? rw_verify_area+0x1c2/0x360
[ 18.336432][ T1878] do_iter_write+0x180/0x590
[ 18.340995][ T1878] do_writev+0x2cd/0x560
[ 18.345210][ T1878] ? do_readv+0x400/0x400
[ 18.349515][ T1878] ? __up_read+0x6f/0x1b0
[ 18.353816][ T1878] ? __down_read+0x240/0x240
[ 18.358377][ T1878] ? do_user_addr_fault+0x6b7/0xb50
[ 18.363546][ T1878] __x64_sys_writev+0x7d/0x90
[ 18.368192][ T1878] do_syscall_64+0xc0/0x100
[ 18.372670][ T1878] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 18.378533][ T1878] RIP: 0033:0x442390
[ 18.382400][ T1878] Code: 05 48 3d 01 f0 ff ff 0f 83 5d 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 83 3d a1 8c 29 00 00 75 14 b8 14 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 34 09 fc ff c3 48 83 ec 08 e8 ba 2b 00 00
[ 18.401979][ T1878] RSP: 002b:00007fff365dc938 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
[ 18.410382][ T1878] RAX: ffffffffffffffda RBX: 00007fff365dc950 RCX: 0000000000442390
[ 18.418329][ T1878] RDX: 0000000000000001 RSI: 00007fff365dc980 RDI: 00000000000000f0
[ 18.426274][ T1878] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000004
[ 18.434247][ T1878] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000045c4
[ 18.442196][ T1878] R13: 00000000004031e0 R14: 0000000000000000 R15: 0000000000000000
[ 18.450162][ T1878] Modules linked in:
[ 18.454030][ T1878] CR2: ffffed10189029ff
[ 18.458172][ T1878] ---[ end trace bbdf490949a3657b ]---
[ 18.463606][ T1878] RIP: 0010:do_xdp_generic+0x603/0x1500
[ 18.469123][ T1878] Code: 00 00 00 00 fc ff df 42 80 3c 30 00 74 05 e8 c4 a7 96 fe 4c 89 a4 24 d8 00 00 00 4c 89 ac 24 18 01 00 00 4c 89 f8 48 c1 e8 03 <42> 80 3c 30 00 74 08 4c 89 ff e8 fe a6 96 fe 49 8b 37 83 e6 01 31
[ 18.488703][ T1878] RSP: 0018:ffff8881d004f680 EFLAGS: 00010a07
[ 18.494740][ T1878] RAX: 1ffff110189029ff RBX: ffff8881d004f788 RCX: 1ffff1103a009ef1
[ 18.502685][ T1878] RDX: ffff8881d22d9574 RSI: 0000000000000000 RDI: ffff8881d004f798
[ 18.510628][ T1878] RBP: ffff8881d004f830 R08: ffffffff82da194b R09: ffffed1038900a5d
[ 18.518572][ T1878] R10: ffffed1038900a5d R11: 0000000000000000 R12: ffff8880c480512a
[ 18.526537][ T1878] R13: ffff8881c4805000 R14: dffffc0000000000 R15: ffff8880c4814fff
[ 18.534481][ T1878] FS: 00000000023a3880(0000) GS:ffff8881dba00000(0000) knlGS:0000000000000000
[ 18.543436][ T1878] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 18.550003][ T1878] CR2: ffffed10189029ff CR3: 00000001d47bf001 CR4: 00000000001606f0
[ 18.557956][ T1878] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 18.565906][ T1878] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 18.573994][ T1878] Kernel panic - not syncing: Fatal exception in interrupt
[ 18.582007][ T1878] Kernel Offset: disabled
[ 18.586380][ T1878] Rebooting in 86400 seconds..