Warning: Permanently added '10.128.10.20' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program [ 1110.329088][ T37] audit: type=1400 audit(1628282273.897:8): avc: denied { execmem } for pid=8447 comm="syz-executor083" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 1110.525555][ T8462] process 'memfd:' started with executable stack [ 1110.542854][ T8460] 4[8460]: segfault at b7000000 ip 00000000b7000000 sp 00000000ff89cbe0 error 14 [ 1110.545144][ T8461] 4[8461]: segfault at b7000000 ip 00000000b7000000 sp 00000000ffd0c620 error 14 [ 1110.560443][ T8459] ------------[ cut here ]------------ [ 1110.565329][ T8458] 4[8458]: segfault at b7000000 ip 00000000b7000000 sp 00000000ffd99f00 error 14 [ 1110.569767][ T8459] WARNING: CPU: 0 PID: 8459 at kernel/signal.c:376 task_participate_group_stop+0x2c0/0x370 [ 1110.594241][ T8459] Modules linked in: [ 1110.598128][ T8459] CPU: 0 PID: 8459 Comm: 4 Not tainted 5.14.0-rc4-syzkaller #0 [ 1110.605669][ T8459] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1110.615719][ T8459] RIP: 0010:task_participate_group_stop+0x2c0/0x370 [ 1110.622315][ T8459] Code: 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 80 3c 02 00 0f 85 9d 00 00 00 48 8b ab 00 05 00 00 e9 d0 fd ff ff e8 10 a9 2d 00 <0f> 0b e9 81 fe ff ff 48 89 ef e8 d1 61 73 00 e9 4b fe ff ff e8 f7 [ 1110.641919][ T8459] RSP: 0018:ffffc90001ac7c50 EFLAGS: 00010093 [ 1110.647984][ T8459] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 1110.655948][ T8459] RDX: ffff88802f300100 RSI: ffffffff81473830 RDI: 0000000000000003 [ 1110.663921][ T8459] RBP: ffff88801f39b2e8 R08: 0000000000000000 R09: 0000000000000003 [ 1110.671886][ T8459] R10: ffffffff814736a0 R11: 0000000000000000 R12: ffff88801f39b240 [ 1110.679850][ T8459] R13: ffff88802f300600 R14: 0000000000040000 R15: 0000000000000000 [ 1110.687815][ T8459] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 1110.696744][ T8459] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 1110.703326][ T8459] CR2: 00000000ff92ab4b CR3: 000000003950c000 CR4: 00000000001506f0 [ 1110.711295][ T8459] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1110.719272][ T8459] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1110.727239][ T8459] Call Trace: [ 1110.730508][ T8459] do_signal_stop+0x1f1/0x850 [ 1110.735190][ T8459] get_signal+0xc84/0x2160 [ 1110.739604][ T8459] ? debug_check_no_obj_freed+0x20c/0x420 [ 1110.745382][ T8459] arch_do_signal_or_restart+0x2a9/0x1c40 [ 1110.751157][ T8459] ? putname+0xe1/0x120 [ 1110.755342][ T8459] ? rcu_read_lock_sched_held+0x3a/0x70 [ 1110.760936][ T8459] ? kmem_cache_free+0x165/0x200 [ 1110.765897][ T8459] ? putname+0xe1/0x120 [ 1110.770067][ T8459] ? get_sigframe_size+0x10/0x10 [ 1110.775007][ T8459] ? do_execveat_common+0x605/0x780 [ 1110.780206][ T8459] ? bprm_execve+0x19b0/0x19b0 [ 1110.784968][ T8459] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 1110.791242][ T8459] exit_to_user_mode_prepare+0x17d/0x290 [ 1110.796917][ T8459] syscall_exit_to_user_mode+0x19/0x60 [ 1110.802456][ T8459] do_syscall_64+0x42/0xb0 [ 1110.806871][ T8459] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1110.812789][ T8459] RIP: 0023:0xb7000000 [ 1110.816858][ T8459] Code: Unable to access opcode bytes at RIP 0xb6ffffd6. [ 1110.823861][ T8459] RSP: 002b:00000000ff92aa70 EFLAGS: 00000200 ORIG_RAX: 000000000000000b [ 1110.832271][ T8459] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 1110.840237][ T8459] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 1110.848202][ T8459] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 1110.856170][ T8459] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 1110.864134][ T8459] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 1110.872105][ T8459] Kernel panic - not syncing: panic_on_warn set ... [ 1110.878675][ T8459] CPU: 0 PID: 8459 Comm: 4 Not tainted 5.14.0-rc4-syzkaller #0 [ 1110.886211][ T8459] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1110.896255][ T8459] Call Trace: [ 1110.899526][ T8459] dump_stack_lvl+0xcd/0x134 [ 1110.904166][ T8459] panic+0x306/0x73d [ 1110.908079][ T8459] ? __warn_printk+0xf3/0xf3 [ 1110.912667][ T8459] ? __warn.cold+0x1a/0x44 [ 1110.917080][ T8459] ? task_participate_group_stop+0x2c0/0x370 [ 1110.923061][ T8459] __warn.cold+0x35/0x44 [ 1110.927307][ T8459] ? task_participate_group_stop+0x2c0/0x370 [ 1110.933285][ T8459] report_bug+0x1bd/0x210 [ 1110.937687][ T8459] handle_bug+0x3c/0x60 [ 1110.941847][ T8459] exc_invalid_op+0x14/0x40 [ 1110.946372][ T8459] asm_exc_invalid_op+0x12/0x20 [ 1110.951222][ T8459] RIP: 0010:task_participate_group_stop+0x2c0/0x370 [ 1110.957810][ T8459] Code: 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 80 3c 02 00 0f 85 9d 00 00 00 48 8b ab 00 05 00 00 e9 d0 fd ff ff e8 10 a9 2d 00 <0f> 0b e9 81 fe ff ff 48 89 ef e8 d1 61 73 00 e9 4b fe ff ff e8 f7 [ 1110.977515][ T8459] RSP: 0018:ffffc90001ac7c50 EFLAGS: 00010093 [ 1110.983578][ T8459] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 1110.991542][ T8459] RDX: ffff88802f300100 RSI: ffffffff81473830 RDI: 0000000000000003 [ 1110.999506][ T8459] RBP: ffff88801f39b2e8 R08: 0000000000000000 R09: 0000000000000003 [ 1111.007470][ T8459] R10: ffffffff814736a0 R11: 0000000000000000 R12: ffff88801f39b240 [ 1111.015433][ T8459] R13: ffff88802f300600 R14: 0000000000040000 R15: 0000000000000000 [ 1111.023398][ T8459] ? task_participate_group_stop+0x130/0x370 [ 1111.029390][ T8459] ? task_participate_group_stop+0x2c0/0x370 [ 1111.035384][ T8459] do_signal_stop+0x1f1/0x850 [ 1111.040059][ T8459] get_signal+0xc84/0x2160 [ 1111.044478][ T8459] ? debug_check_no_obj_freed+0x20c/0x420 [ 1111.050199][ T8459] arch_do_signal_or_restart+0x2a9/0x1c40 [ 1111.055917][ T8459] ? putname+0xe1/0x120 [ 1111.060079][ T8459] ? rcu_read_lock_sched_held+0x3a/0x70 [ 1111.065631][ T8459] ? kmem_cache_free+0x165/0x200 [ 1111.070563][ T8459] ? putname+0xe1/0x120 [ 1111.074735][ T8459] ? get_sigframe_size+0x10/0x10 [ 1111.079670][ T8459] ? do_execveat_common+0x605/0x780 [ 1111.084868][ T8459] ? bprm_execve+0x19b0/0x19b0 [ 1111.089630][ T8459] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 1111.095869][ T8459] exit_to_user_mode_prepare+0x17d/0x290 [ 1111.101504][ T8459] syscall_exit_to_user_mode+0x19/0x60 [ 1111.106958][ T8459] do_syscall_64+0x42/0xb0 [ 1111.111372][ T8459] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1111.117278][ T8459] RIP: 0023:0xb7000000 [ 1111.121362][ T8459] Code: Unable to access opcode bytes at RIP 0xb6ffffd6. [ 1111.128367][ T8459] RSP: 002b:00000000ff92aa70 EFLAGS: 00000200 ORIG_RAX: 000000000000000b [ 1111.136774][ T8459] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 1111.144736][ T8459] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 1111.152700][ T8459] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 1111.160663][ T8459] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 1111.168643][ T8459] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 1111.177986][ T8459] Kernel Offset: disabled [ 1111.182395][ T8459] Rebooting in 86400 seconds..