[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.138' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 36.460064] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 36.472573] Quota error (device loop0): qtree_write_dquot: Error -130079078 occurred while creating quota [ 36.486121] Quota error (device loop0): qtree_write_dquot: Error -130079077 occurred while creating quota [ 36.497128] BUG: unable to handle kernel paging request at fffffbffff07e4ee [ 36.504333] PGD 23fff1067 P4D 23fff1067 PUD 23fff0067 PMD 0 [ 36.510203] Oops: 0000 [#1] PREEMPT SMP KASAN [ 36.514687] CPU: 0 PID: 8106 Comm: syz-executor876 Not tainted 4.19.163-syzkaller #0 [ 36.522549] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.531903] RIP: 0010:__lock_acquire+0x1eb/0x3ff0 [ 36.536732] 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 [ 36.555639] RSP: 0018:ffff8880953af590 EFLAGS: 00010806 [ 36.560989] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 36.568285] RDX: 1fffffffff07e4ee RSI: 0000000000000000 RDI: 0000000000000001 [ 36.575577] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001 [ 36.582838] R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000000 [ 36.590098] R13: ffff8880953a4200 R14: fffffffff83f2773 R15: 0000000000000001 [ 36.597358] FS: 0000000000eff880(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 36.605570] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.611438] CR2: fffffbffff07e4ee CR3: 00000000b470c000 CR4: 00000000001406f0 [ 36.618700] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.625970] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.633239] Call Trace: [ 36.635823] ? __lock_acquire+0x22f9/0x3ff0 [ 36.640149] ? mark_held_locks+0xf0/0xf0 [ 36.644199] ? mark_held_locks+0xf0/0xf0 [ 36.648255] ? __getblk_gfp+0x48/0x70 [ 36.652036] ? ext4_getblk+0x35a/0x4f0 [ 36.655902] ? do_syscall_64+0xf9/0x620 [ 36.659854] lock_acquire+0x170/0x3c0 [ 36.663632] ? dquot_add_inodes+0x34/0x9a0 [ 36.667890] _raw_spin_lock+0x2a/0x40 [ 36.671708] ? dquot_add_inodes+0x34/0x9a0 [ 36.675953] dquot_add_inodes+0x34/0x9a0 [ 36.679995] ? ext4_listxattr+0xb90/0xb90 [ 36.684131] __dquot_transfer+0xf3a/0x18a0 [ 36.688360] ? userns_put+0xb0/0xb0 [ 36.691965] ? __dquot_alloc_space+0x860/0x860 [ 36.696531] ? from_kgid+0x87/0xc0 [ 36.700065] ? from_kuid_munged+0x130/0x130 [ 36.704372] ? lock_acquire+0x170/0x3c0 [ 36.708332] ? __audit_log_bprm_fcaps+0x7d0/0x820 [ 36.713156] ? from_kqid+0xf2/0x1c0 [ 36.716764] ? v2r0_disk2memdqb+0x360/0x470 [ 36.721063] ? dqget+0x171/0xfc0 [ 36.724420] ? dquot_writeback_dquots+0x9e0/0x9e0 [ 36.729244] dquot_transfer+0x2ee/0x4bb [ 36.733208] ? __dquot_transfer+0x18a0/0x18a0 [ 36.737697] ? ext4_setattr+0x57f/0x2560 [ 36.741733] ext4_setattr+0x58a/0x2560 [ 36.745600] ? evm_verify_current_integrity+0x87/0xf0 [ 36.750768] ? evm_inode_setattr+0x6a/0x170 [ 36.755071] ? ext4_evict_inode+0x1780/0x1780 [ 36.759557] notify_change+0x70b/0xfc0 [ 36.763442] chown_common+0x4a9/0x550 [ 36.767228] ? chmod_common+0x3f0/0x3f0 [ 36.771183] ? check_preemption_disabled+0x41/0x280 [ 36.776179] ? preempt_count_add+0xaf/0x190 [ 36.780481] ? __mnt_want_write+0x22c/0x2c0 [ 36.784791] do_fchownat+0x126/0x1e0 [ 36.788495] ? __ia32_sys_chmod+0x80/0x80 [ 36.792623] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 36.797970] __x64_sys_fchownat+0xba/0x150 [ 36.802186] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 36.806753] do_syscall_64+0xf9/0x620 [ 36.810599] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.815775] RIP: 0033:0x4447b9 [ 36.818947] 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 [ 36.837835] RSP: 002b:00007fffa02a0ec8 EFLAGS: 00000246 ORIG_RAX: 0000000000000104 [ 36.845550] RAX: ffffffffffffffda RBX: 00000000004002e0 RCX: 00000000004447b9 [ 36.853517] RDX: 000000000000ee00 RSI: 0000000020000040 RDI: 0000000000000005 [ 36.860786] RBP: 00000000006cf018 R08: 0000000000000000 R09: 00000000004002e0 [ 36.868053] R10: 000000000000ee00 R11: 0000000000000246 R12: 00000000004023a0 [ 36.875310] R13: 0000000000402430 R14: 0000000000000000 R15: 0000000000000000 [ 36.882579] Modules linked in: [ 36.885762] CR2: fffffbffff07e4ee [ 36.889206] ---[ end trace d249afb850976914 ]--- [ 36.893953] RIP: 0010:__lock_acquire+0x1eb/0x3ff0 [ 36.898795] 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 [ 36.917706] RSP: 0018:ffff8880953af590 EFLAGS: 00010806 [ 36.923061] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 36.930321] RDX: 1fffffffff07e4ee RSI: 0000000000000000 RDI: 0000000000000001 [ 36.937577] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001 [ 36.944829] R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000000 [ 36.952088] R13: ffff8880953a4200 R14: fffffffff83f2773 R15: 0000000000000001 [ 36.959342] FS: 0000000000eff880(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 36.967562] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.973424] CR2: fffffbffff07e4ee CR3: 00000000b470c000 CR4: 00000000001406f0 [ 36.980675] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.987938] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.995188] Kernel panic - not syncing: Fatal exception [ 37.000958] Kernel Offset: disabled [ 37.004567] Rebooting in 86400 seconds..