Warning: Permanently added '10.128.0.239' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program [ 89.153122][ T28] audit: type=1400 audit(1597033864.750:8): avc: denied { execmem } for pid=6829 comm="syz-executor025" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 94.872613][ T7461] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 94.880454][ T7461] #PF: supervisor instruction fetch in kernel mode [ 94.886972][ T7461] #PF: error_code(0x0010) - not-present page [ 94.892926][ T7461] PGD a652e067 P4D a652e067 PUD a652f067 PMD 0 [ 94.899148][ T7461] Oops: 0010 [#1] PREEMPT SMP KASAN [ 94.904322][ T7461] CPU: 1 PID: 7461 Comm: io_wqe_worker-0 Not tainted 5.8.0-syzkaller #0 [ 94.913916][ T7461] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 94.923953][ T7461] RIP: 0010:0x0 [ 94.927400][ T7461] Code: Bad RIP value. [ 94.931465][ T7461] RSP: 0018:ffffc9000804f910 EFLAGS: 00010246 [ 94.937506][ T7461] RAX: 1ffffffff10b0b9b RBX: dffffc0000000000 RCX: ffff88808962e1c8 [ 94.945456][ T7461] RDX: 000000000000003c RSI: 0000000020000740 RDI: ffff88809fb2dcc0 [ 94.953405][ T7461] RBP: 0000000020000740 R08: ffffc9000804fa28 R09: ffff8880a7639c0f [ 94.961358][ T7461] R10: 0000000000000000 R11: 0000000000000000 R12: ffffc9000804fa28 [ 94.969315][ T7461] R13: ffffffff88585cc0 R14: 000000000000003c R15: 0000000000000001 [ 94.977263][ T7461] FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 94.986176][ T7461] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 94.992747][ T7461] CR2: ffffffffffffffd6 CR3: 000000008e2a7000 CR4: 00000000001506e0 [ 95.000698][ T7461] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 95.008647][ T7461] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 95.016592][ T7461] Call Trace: [ 95.019883][ T7461] loop_rw_iter.part.0+0x26e/0x450 [ 95.024975][ T7461] ? rw_verify_area+0x11d/0x360 [ 95.029822][ T7461] io_write+0x6a2/0x7a0 [ 95.033966][ T7461] ? io_read+0xb60/0xb60 [ 95.038225][ T7461] ? mark_lock+0xbc/0x1710 [ 95.042634][ T7461] ? lock_repin_lock+0x460/0x460 [ 95.047575][ T7461] ? __lock_acquire+0x16cb/0x5640 [ 95.052597][ T7461] io_issue_sqe+0x1b0/0x60d0 [ 95.057166][ T7461] ? lockdep_hardirqs_on_prepare+0x530/0x530 [ 95.063136][ T7461] ? lockdep_hardirqs_on+0x76/0xf0 [ 95.068263][ T7461] ? kthread_use_mm+0x1dc/0x430 [ 95.073097][ T7461] ? io_uring_setup+0x28c0/0x28c0 [ 95.078135][ T7461] ? lock_downgrade+0x830/0x830 [ 95.082962][ T7461] ? kthread_use_mm+0x19b/0x430 [ 95.087812][ T7461] ? io_wq_submit_work+0x183/0x3d0 [ 95.092906][ T7461] io_wq_submit_work+0x183/0x3d0 [ 95.097832][ T7461] io_worker_handle_work+0xa45/0x13f0 [ 95.103181][ T7461] io_wqe_worker+0xbf0/0x10e0 [ 95.107840][ T7461] ? io_worker_handle_work+0x13f0/0x13f0 [ 95.113446][ T7461] ? lockdep_hardirqs_on+0x76/0xf0 [ 95.118535][ T7461] ? __kthread_parkme+0x13f/0x1e0 [ 95.123536][ T7461] ? io_worker_handle_work+0x13f0/0x13f0 [ 95.129158][ T7461] kthread+0x3b5/0x4a0 [ 95.133217][ T7461] ? __kthread_bind_mask+0xc0/0xc0 [ 95.138303][ T7461] ? __kthread_bind_mask+0xc0/0xc0 [ 95.143396][ T7461] ret_from_fork+0x1f/0x30 [ 95.148575][ T7461] Modules linked in: [ 95.152443][ T7461] CR2: 0000000000000000 [ 95.168398][ T7461] ---[ end trace 97e511c5a98da2fe ]--- [ 95.173985][ T7461] RIP: 0010:0x0 [ 95.177430][ T7461] Code: Bad RIP value. [ 95.182315][ T7461] RSP: 0018:ffffc9000804f910 EFLAGS: 00010246 [ 95.188397][ T7461] RAX: 1ffffffff10b0b9b RBX: dffffc0000000000 RCX: ffff88808962e1c8 [ 95.197062][ T7461] RDX: 000000000000003c RSI: 0000000020000740 RDI: ffff88809fb2dcc0 [ 95.205483][ T7461] RBP: 0000000020000740 R08: ffffc9000804fa28 R09: ffff8880a7639c0f [ 95.213843][ T7461] R10: 0000000000000000 R11: 0000000000000000 R12: ffffc9000804fa28 [ 95.223243][ T7461] R13: ffffffff88585cc0 R14: 000000000000003c R15: 0000000000000001 [ 95.231691][ T7461] FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 95.240983][ T7461] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 95.247561][ T7461] CR2: 00007f84c3b15028 CR3: 000000008e2a7000 CR4: 00000000001506e0 [ 95.256412][ T7461] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 95.264931][ T7461] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 95.273420][ T7461] Kernel panic - not syncing: Fatal exception [ 95.280724][ T7461] Kernel Offset: disabled [ 95.285041][ T7461] Rebooting in 86400 seconds..