Warning: Permanently added '10.128.0.133' (ECDSA) to the list of known hosts. executing program [ 33.774696] audit: type=1400 audit(1598307000.066:8): avc: denied { execmem } for pid=6370 comm="syz-executor912" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 33.777743] kasan: CONFIG_KASAN_INLINE enabled [ 33.800601] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 33.808453] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 33.814670] Modules linked in: [ 33.817865] CPU: 1 PID: 6370 Comm: syz-executor912 Not tainted 4.14.194-syzkaller #0 [ 33.825714] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.835748] task: ffff88808f28c680 task.stack: ffff88809bdf0000 [ 33.841804] RIP: 0010:rb_erase+0x29/0x1290 [ 33.846019] RSP: 0018:ffff88809bdf7a68 EFLAGS: 00010292 [ 33.851367] RAX: dffffc0000000000 RBX: ffff888085200930 RCX: 1ffff110137bef27 [ 33.858611] RDX: 0000000000000001 RSI: ffffffff8a677fa0 RDI: 0000000000000008 [ 33.865853] RBP: 0000000000000000 R08: ffffffff8a113fac R09: 0000000000001e14 [ 33.873096] R10: 0000000000000001 R11: ffff88808f28c680 R12: 0000000000000000 [ 33.880336] R13: dffffc0000000000 R14: ffff8880851db4b8 R15: ffffffff8a677fa0 [ 33.887598] FS: 00000000012cc880(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 [ 33.895804] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 33.901661] CR2: 0000000020000004 CR3: 000000008c87f000 CR4: 00000000001406e0 [ 33.908909] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 33.916152] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 33.923394] Call Trace: [ 33.925970] integrity_inode_free+0x119/0x300 [ 33.930463] security_inode_free+0x14/0x80 [ 33.934673] __destroy_inode+0x1e8/0x4d0 [ 33.938728] destroy_inode+0x49/0x110 [ 33.942500] iput+0x458/0x7e0 [ 33.945593] ? ext4_mark_dquot_dirty+0x190/0x190 [ 33.950333] ext4_ioctl+0x16c5/0x3870 [ 33.954106] ? ext4_ioctl_check_immutable+0x1c0/0x1c0 [ 33.959277] ? putname+0xcd/0x110 [ 33.962702] ? do_sys_open+0x203/0x410 [ 33.966577] ? do_syscall_64+0x1d5/0x640 [ 33.970621] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 33.975974] ? path_lookupat+0x780/0x780 [ 33.980013] ? debug_check_no_obj_freed+0x2c0/0x674 [ 33.985022] ? lock_acquire+0x170/0x3f0 [ 33.988975] ? lock_downgrade+0x740/0x740 [ 33.993099] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 33.998179] ? ext4_ioctl_check_immutable+0x1c0/0x1c0 [ 34.003965] do_vfs_ioctl+0x75a/0xff0 [ 34.007765] ? selinux_inode_setxattr+0x730/0x730 [ 34.012596] ? ioctl_preallocate+0x1a0/0x1a0 [ 34.016977] ? kmem_cache_free+0x23a/0x2b0 [ 34.021196] ? putname+0xcd/0x110 [ 34.024623] ? do_sys_open+0x208/0x410 [ 34.028483] ? security_file_ioctl+0x83/0xb0 [ 34.032865] SyS_ioctl+0x7f/0xb0 [ 34.036812] ? do_vfs_ioctl+0xff0/0xff0 [ 34.040774] do_syscall_64+0x1d5/0x640 [ 34.044638] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 34.049815] RIP: 0033:0x440249 [ 34.053004] RSP: 002b:00007ffcab1d8888 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 34.060682] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440249 [ 34.067933] RDX: 0000000000000000 RSI: 0000000000006611 RDI: 0000000000000003 [ 34.075181] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 34.082422] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401a50 [ 34.089665] R13: 0000000000401ae0 R14: 0000000000000000 R15: 0000000000000000 [ 34.096912] Code: ff ff 48 b8 00 00 00 00 00 fc ff df 41 57 49 89 f7 41 56 41 55 41 54 49 89 fc 48 83 c7 08 48 89 fa 55 48 c1 ea 03 53 48 83 ec 18 <80> 3c 02 00 0f 85 f2 0c 00 00 49 8d 7c 24 10 4d 8b 74 24 08 48 [ 34.116009] RIP: rb_erase+0x29/0x1290 RSP: ffff88809bdf7a68 [ 34.121765] ---[ end trace 440e6842f995b568 ]--- [ 34.126517] Kernel panic - not syncing: Fatal exception [ 34.132757] Kernel Offset: disabled [ 34.136372] Rebooting in 86400 seconds..