Warning: Permanently added '10.128.0.234' (ECDSA) to the list of known hosts. 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 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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 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 [ 370.420372][ T9433] general protection fault, probably for non-canonical address 0xdffffc0000000021: 0000 [#1] PREEMPT SMP KASAN [ 370.433302][ T9433] KASAN: null-ptr-deref in range [0x0000000000000108-0x000000000000010f] [ 370.443008][ T9433] CPU: 1 PID: 9433 Comm: syz-executor145 Not tainted 5.6.0-rc3-next-20200228-syzkaller #0 [ 370.453485][ T9433] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 370.464163][ T9433] RIP: 0010:destroy_workqueue+0x2e/0x6b0 [ 370.469866][ T9433] Code: 49 89 fe 41 55 41 54 55 53 48 83 ec 08 e8 8a 6a 26 00 49 8d be 08 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 e0 05 00 00 49 8b 9e 08 01 00 00 48 85 db 74 19 [ 370.490419][ T9433] RSP: 0018:ffffc900026a7cc8 EFLAGS: 00010206 [ 370.496842][ T9433] RAX: dffffc0000000000 RBX: 0000000000000002 RCX: 0000000000000000 [ 370.504993][ T9433] RDX: 0000000000000021 RSI: ffffffff814c2af6 RDI: 0000000000000108 [ 370.513389][ T9433] RBP: ffff8880a1f110f0 R08: ffff888096a0e0c0 R09: fffffbfff185270a [ 370.521714][ T9433] R10: fffffbfff1852709 R11: ffffffff8c29384f R12: ffff8880a1f11000 [ 370.530415][ T9433] R13: ffff8880a1f11004 R14: 0000000000000000 R15: 0000000000004c01 [ 370.538738][ T9433] FS: 0000000001260880(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 370.547758][ T9433] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 370.554907][ T9433] CR2: 00007f8f1ad5ba20 CR3: 000000009fcda000 CR4: 00000000001406e0 [ 370.563444][ T9433] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 370.572057][ T9433] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 370.580666][ T9433] Call Trace: [ 370.584610][ T9433] __loop_clr_fd+0x185/0x1280 [ 370.589872][ T9433] lo_ioctl+0x2b4/0x1460 [ 370.594874][ T9433] ? __loop_clr_fd+0x1280/0x1280 [ 370.601081][ T9433] blkdev_ioctl+0x25b/0x660 [ 370.606440][ T9433] ? blkdev_common_ioctl+0x1770/0x1770 [ 370.612871][ T9433] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 370.619734][ T9433] block_ioctl+0xe9/0x130 [ 370.624662][ T9433] ? blkdev_fallocate+0x3f0/0x3f0 [ 370.629914][ T9433] ksys_ioctl+0x11a/0x180 [ 370.634320][ T9433] __x64_sys_ioctl+0x6f/0xb0 [ 370.639402][ T9433] ? lockdep_hardirqs_on+0x417/0x5d0 [ 370.645527][ T9433] do_syscall_64+0xf6/0x790 [ 370.650887][ T9433] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 370.657114][ T9433] RIP: 0033:0x446977 [ 370.661803][ T9433] Code: 48 83 c4 08 48 89 d8 5b 5d c3 66 0f 1f 84 00 00 00 00 00 48 89 e8 48 f7 d8 48 39 c3 0f 92 c0 eb 92 66 90 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 ed 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 370.682604][ T9433] RSP: 002b:00007ffd4d7085a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 370.691568][ T9433] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000446977 [ 370.699534][ T9433] RDX: 0000000000000000 RSI: 0000000000004c01 RDI: 0000000000000003 [ 370.707981][ T9433] RBP: 000000000005a542 R08: 0000000000000000 R09: 000000000000000a [ 370.716090][ T9433] R10: 0000000000000075 R11: 0000000000000246 R12: 00000000004075f0 [ 370.724338][ T9433] R13: 0000000000407680 R14: 0000000000000000 R15: 0000000000000000 [ 370.732896][ T9433] Modules linked in: [ 370.737890][ T9433] ---[ end trace 11decbac8e570bf9 ]--- [ 370.743534][ T9433] RIP: 0010:destroy_workqueue+0x2e/0x6b0 [ 370.749427][ T9433] Code: 49 89 fe 41 55 41 54 55 53 48 83 ec 08 e8 8a 6a 26 00 49 8d be 08 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 e0 05 00 00 49 8b 9e 08 01 00 00 48 85 db 74 19 [ 370.769407][ T9433] RSP: 0018:ffffc900026a7cc8 EFLAGS: 00010206 [ 370.775947][ T9433] RAX: dffffc0000000000 RBX: 0000000000000002 RCX: 0000000000000000 [ 370.784715][ T9433] RDX: 0000000000000021 RSI: ffffffff814c2af6 RDI: 0000000000000108 [ 370.793588][ T9433] RBP: ffff8880a1f110f0 R08: ffff888096a0e0c0 R09: fffffbfff185270a [ 370.803051][ T9433] R10: fffffbfff1852709 R11: ffffffff8c29384f R12: ffff8880a1f11000 [ 370.811312][ T9433] R13: ffff8880a1f11004 R14: 0000000000000000 R15: 0000000000004c01 [ 370.819604][ T9433] FS: 0000000001260880(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 370.830632][ T9433] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 370.837904][ T9433] CR2: 00007f8f1ad5ba20 CR3: 000000009fcda000 CR4: 00000000001406e0 [ 370.846230][ T9433] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 370.855563][ T9433] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 370.864190][ T9433] Kernel panic - not syncing: Fatal exception [ 370.873010][ T9433] Kernel Offset: disabled [ 370.877918][ T9433] Rebooting in 86400 seconds..