[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.51' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 35.414304] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 35.429039] Quota error (device loop0): qtree_write_dquot: Error -842571171 occurred while creating quota [ 35.443824] Quota error (device loop0): qtree_write_dquot: Error -587202560 occurred while creating quota [ 35.453762] BUG: unable to handle kernel paging request at fffffbfffba0001b [ 35.460868] PGD 23fff1067 P4D 23fff1067 PUD 23fff0067 PMD 0 [ 35.466667] Oops: 0000 [#1] PREEMPT SMP KASAN [ 35.471237] CPU: 1 PID: 8083 Comm: syz-executor902 Not tainted 4.19.163-syzkaller #0 [ 35.479094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.488436] RIP: 0010:__lock_acquire+0x1eb/0x3ff0 [ 35.493259] Code: 2b 29 00 00 48 81 c4 98 01 00 00 44 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 <80> 3c 02 00 0f 85 b3 2a 00 00 49 81 3e e0 51 66 8c 0f 84 65 ff ff [ 35.512146] RSP: 0018:ffff88809d2ef5a0 EFLAGS: 00010806 [ 35.517486] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 35.524734] RDX: 1ffffffffba0001b RSI: 0000000000000000 RDI: 0000000000000001 [ 35.532032] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001 [ 35.539320] R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000000 [ 35.546615] R13: ffff8880b2988040 R14: ffffffffdd0000d8 R15: 0000000000000001 [ 35.553863] FS: 0000000000fd5880(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 35.562063] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.567921] CR2: fffffbfffba0001b CR3: 00000000aa7c8000 CR4: 00000000001406e0 [ 35.575170] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.582416] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.589661] Call Trace: [ 35.592238] ? __lock_acquire+0x22f9/0x3ff0 [ 35.596538] ? mark_held_locks+0xf0/0xf0 [ 35.600576] ? mark_held_locks+0xf0/0xf0 [ 35.604613] ? __getblk_gfp+0x48/0x70 [ 35.608398] ? ext4_getblk+0x35a/0x4f0 [ 35.612262] ? do_syscall_64+0xf9/0x620 [ 35.616220] lock_acquire+0x170/0x3c0 [ 35.619998] ? dquot_add_inodes+0x34/0x9a0 [ 35.624212] _raw_spin_lock+0x2a/0x40 [ 35.627989] ? dquot_add_inodes+0x34/0x9a0 [ 35.632279] dquot_add_inodes+0x34/0x9a0 [ 35.636319] ? ext4_listxattr+0xb90/0xb90 [ 35.640442] __dquot_transfer+0xf3a/0x18a0 [ 35.644657] ? userns_put+0xb0/0xb0 [ 35.648260] ? __dquot_alloc_space+0x860/0x860 [ 35.652822] ? from_kgid+0x87/0xc0 [ 35.656351] ? from_kuid_munged+0x130/0x130 [ 35.660654] ? lock_acquire+0x170/0x3c0 [ 35.664609] ? __audit_log_bprm_fcaps+0x7d0/0x820 [ 35.669436] ? from_kqid+0xf2/0x1c0 [ 35.673095] ? v2r0_disk2memdqb+0x360/0x470 [ 35.677399] ? dqget+0x171/0xfc0 [ 35.680763] ? dquot_writeback_dquots+0x9e0/0x9e0 [ 35.685639] dquot_transfer+0x2ee/0x4bb [ 35.689646] ? __dquot_transfer+0x18a0/0x18a0 [ 35.694123] ? ext4_setattr+0x57f/0x2560 [ 35.698164] ext4_setattr+0x58a/0x2560 [ 35.702030] ? evm_verify_current_integrity+0x87/0xf0 [ 35.707199] ? evm_inode_setattr+0x6a/0x170 [ 35.711499] ? ext4_evict_inode+0x1780/0x1780 [ 35.715976] notify_change+0x70b/0xfc0 [ 35.719848] chown_common+0x4a9/0x550 [ 35.723649] ? chmod_common+0x3f0/0x3f0 [ 35.727951] ? check_preemption_disabled+0x41/0x280 [ 35.732948] ? preempt_count_add+0xaf/0x190 [ 35.737247] ? __mnt_want_write+0x22c/0x2c0 [ 35.741545] do_fchownat+0x126/0x1e0 [ 35.745238] ? __ia32_sys_chmod+0x80/0x80 [ 35.749364] ? fput+0x2b/0x190 [ 35.752537] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 35.757899] ? trace_hardirqs_off_caller+0x6e/0x210 [ 35.762896] __x64_sys_lchown+0x7a/0xc0 [ 35.766849] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 35.771496] do_syscall_64+0xf9/0x620 [ 35.775278] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.780448] RIP: 0033:0x4446b9 [ 35.783623] Code: 8d d7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 5b d7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 35.802523] RSP: 002b:00007ffeefaf3a18 EFLAGS: 00000246 ORIG_RAX: 000000000000005e [ 35.810211] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00000000004446b9 [ 35.817460] RDX: 000000000000ee00 RSI: 000000000000ee01 RDI: 00000000200000c0 [ 35.824714] RBP: 00000000006cf018 R08: 0000000000000000 R09: 0000000000000000 [ 35.831963] R10: 00007ffeefaf38d0 R11: 0000000000000246 R12: 00000000004022a0 [ 35.839212] R13: 0000000000402330 R14: 0000000000000000 R15: 0000000000000000 [ 35.846464] Modules linked in: [ 35.849635] CR2: fffffbfffba0001b [ 35.853071] ---[ end trace 4035129ab690c247 ]--- [ 35.857810] RIP: 0010:__lock_acquire+0x1eb/0x3ff0 [ 35.862632] Code: 2b 29 00 00 48 81 c4 98 01 00 00 44 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 <80> 3c 02 00 0f 85 b3 2a 00 00 49 81 3e e0 51 66 8c 0f 84 65 ff ff [ 35.881515] RSP: 0018:ffff88809d2ef5a0 EFLAGS: 00010806 [ 35.886854] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 35.894103] RDX: 1ffffffffba0001b RSI: 0000000000000000 RDI: 0000000000000001 [ 35.901368] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001 [ 35.908618] R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000000 [ 35.915868] R13: ffff8880b2988040 R14: ffffffffdd0000d8 R15: 0000000000000001 [ 35.923116] FS: 0000000000fd5880(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 35.931336] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.937196] CR2: fffffbfffba0001b CR3: 00000000aa7c8000 CR4: 00000000001406e0 [ 35.944446] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.951693] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.958959] Kernel panic - not syncing: Fatal exception [ 35.964938] Kernel Offset: disabled [ 35.968548] Rebooting in 86400 seconds..