Warning: Permanently added '10.128.15.201' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 31.906501] audit: type=1400 audit(1601468350.152:8): avc: denied { execmem } for pid=6365 comm="syz-executor918" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 31.946634] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 31.957448] Quota error (device loop0): qtree_write_dquot: Error -927940090 occurred while creating quota [ 31.968331] BUG: unable to handle kernel paging request at fffffbfff9161860 [ 31.975439] IP: dquot_add_space+0x45/0xfb0 [ 31.979658] PGD 21ffec067 P4D 21ffec067 PUD 21ffeb067 PMD 0 [ 31.985468] Oops: 0000 [#1] PREEMPT SMP KASAN [ 31.989947] Modules linked in: [ 31.993119] CPU: 1 PID: 6365 Comm: syz-executor918 Not tainted 4.14.198-syzkaller #0 [ 32.000996] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.010441] task: ffff8880899b4080 task.stack: ffff8880985e0000 [ 32.016475] RIP: 0010:dquot_add_space+0x45/0xfb0 [ 32.021294] RSP: 0018:ffff8880985e7318 EFLAGS: 00010a07 [ 32.026627] RAX: dffffc0000000000 RBX: ffff8880985e7428 RCX: 0000000000000001 [ 32.033876] RDX: 1ffffffff9161860 RSI: 0000000000000400 RDI: ffffffffc8b0c206 [ 32.041130] RBP: 0000000000000000 R08: ffff8880985e7428 R09: 0000000000000000 [ 32.048372] R10: 0000000000000002 R11: ffff8880899b4080 R12: ffff888082670998 [ 32.055623] R13: ffffffffc8b0c206 R14: ffffffffc8b0c206 R15: ffff8880985e7428 [ 32.063209] FS: 0000000001851880(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 [ 32.071419] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 32.077271] CR2: fffffbfff9161860 CR3: 00000000a5478000 CR4: 00000000001406e0 [ 32.084527] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 32.091779] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 32.099035] Call Trace: [ 32.101600] ? __dquot_alloc_space+0x1e1/0x7b0 [ 32.106164] __dquot_alloc_space+0x461/0x7b0 [ 32.110549] ? dquot_add_space+0xfb0/0xfb0 [ 32.114756] ? __vfs_setxattr+0xdc/0x130 [ 32.118931] ? __vfs_setxattr_noperm+0xfd/0x3d0 [ 32.123615] ? check_preemption_disabled+0x35/0x240 [ 32.128624] ? raid6_int8_xor_syndrome+0xc50/0xfa0 [ 32.133529] ext4_mb_new_blocks+0x4ac/0x3db0 [ 32.137929] ext4_new_meta_blocks+0x197/0x2e0 [ 32.142457] ? ext4_should_retry_alloc+0x1f0/0x1f0 [ 32.147403] ? ext4_get_dquots+0x9/0x20 [ 32.151375] ? dquot_initialize_needed+0x15d/0x240 [ 32.156276] ext4_xattr_block_set+0xd2b/0x2af0 [ 32.161010] ? ext4_xattr_ibody_set+0x280/0x280 [ 32.165659] ? __getblk_gfp+0x48/0x70 [ 32.169498] ? ext4_xattr_ibody_find+0x223/0x5c0 [ 32.174246] ? ext4_xattr_block_find+0x52/0x5a0 [ 32.178899] ? ext4_xattr_ibody_set+0x1bb/0x280 [ 32.183538] ext4_xattr_set_handle+0x839/0xd20 [ 32.188096] ? ext4_xattr_ibody_inline_set+0x280/0x280 [ 32.193344] ? do_raw_spin_unlock+0x164/0x220 [ 32.197811] ? __dquot_initialize+0x228/0xa70 [ 32.202278] ? avc_has_perm_noaudit+0x2a0/0x2a0 [ 32.206936] ? __ext4_journal_start_sb+0x105/0x3b0 [ 32.211838] ? ext4_xattr_set+0x19b/0x230 [ 32.215961] ext4_xattr_set+0x118/0x230 [ 32.219927] ? ext4_xattr_set_credits+0x1f0/0x1f0 [ 32.224748] ? xattr_resolve_name+0x22c/0x370 [ 32.229215] ? ext4_xattr_inode_update_ref.cold+0x119/0x119 [ 32.234896] __vfs_setxattr+0xdc/0x130 [ 32.238754] ? xattr_resolve_name+0x370/0x370 [ 32.243221] ? evm_protect_xattr.constprop.0+0x6c/0x350 [ 32.248571] __vfs_setxattr_noperm+0xfd/0x3d0 [ 32.253049] __vfs_setxattr_locked+0x14d/0x250 [ 32.257615] vfs_setxattr+0xcf/0x230 [ 32.261702] ? __check_object_size+0x119/0x22c [ 32.266260] ? __vfs_setxattr_locked+0x250/0x250 [ 32.270986] ? strncpy_from_user+0x210/0x2c0 [ 32.275365] setxattr+0x1a9/0x300 [ 32.278787] ? vfs_setxattr+0x230/0x230 [ 32.282748] ? filename_lookup+0x380/0x510 [ 32.286959] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 32.292396] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 32.297400] ? preempt_count_add+0xaf/0x170 [ 32.301694] ? __mnt_want_write+0x1da/0x270 [ 32.305988] path_setxattr+0x118/0x130 [ 32.309867] ? setxattr+0x300/0x300 [ 32.313468] SyS_setxattr+0x36/0x50 [ 32.317080] ? vfs_getxattr_alloc+0x2d0/0x2d0 [ 32.321567] do_syscall_64+0x1d5/0x640 [ 32.325428] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 32.330604] RIP: 0033:0x444709 [ 32.333885] RSP: 002b:00007ffc70d13908 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc [ 32.341565] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 0000000000444709 [ 32.348808] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000020000040 [ 32.356063] RBP: 00000000006cf018 R08: 0000000000000000 R09: 0000000000000000 [ 32.363838] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004022f0 [ 32.371170] R13: 0000000000402380 R14: 0000000000000000 R15: 0000000000000000 [ 32.378459] Code: 89 4c 24 3c 4c 89 44 24 28 e8 58 e2 b6 ff 49 8d 85 00 01 00 00 48 89 c2 48 89 44 24 30 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 c6 0b 00 00 4d 8d a5 c0 00 00 00 49 8b 9d 00 [ 32.397649] RIP: dquot_add_space+0x45/0xfb0 RSP: ffff8880985e7318 [ 32.403852] CR2: fffffbfff9161860 [ 32.407280] ---[ end trace c419967b1cda59f7 ]--- [ 32.412018] Kernel panic - not syncing: Fatal exception [ 32.418513] Kernel Offset: disabled [ 32.422122] Rebooting in 86400 seconds..