Starting OpenBSD Secure Shell server... Starting System Logging Service... [ OK ] Started Daily apt upgrade and clean activities. [ OK ] Reached target Timers. Starting getty on tty2-tty6 if dbus and logind are not available... [ OK ] Started Permit User Sessions. [ OK ] Found device /dev/ttyS0. [ OK ] Started System Logging Service. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. [ OK ] Started OpenBSD Secure Shell server. [ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.234' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 47.106062][ T6852] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 47.128713][ T6852] Quota error (device loop0): qtree_write_dquot: Error -1067589339 occurred while creating quota [ 47.140062][ T6852] Quota error (device loop0): dq_insert_tree: Quota tree root isn't allocated! [ 47.151588][ T6852] Quota error (device loop0): qtree_write_dquot: Error -5 occurred while creating quota [ 47.163509][ T6852] BUG: unable to handle page fault for address: fffffbfff80bbc46 [ 47.171232][ T6852] #PF: supervisor read access in kernel mode [ 47.177375][ T6852] #PF: error_code(0x0000) - not-present page [ 47.183364][ T6852] PGD 21ffe5067 P4D 21ffe5067 PUD 21ffe4067 PMD 0 [ 47.189867][ T6852] Oops: 0000 [#1] PREEMPT SMP KASAN [ 47.195688][ T6852] CPU: 1 PID: 6852 Comm: syz-executor553 Not tainted 5.9.0-rc8-syzkaller #0 [ 47.204354][ T6852] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.214417][ T6852] RIP: 0010:check_memory_region+0x80/0x2f0 [ 47.220311][ T6852] Code: 01 00 00 00 00 fc ff df 4d 01 ea 4d 89 d6 4d 29 ce 49 83 fe 10 7f 2d 4d 85 f6 0f 84 ab 01 00 00 4c 89 cb 4c 29 d3 0f 1f 40 00 <45> 0f b6 19 45 84 db 0f 85 f3 01 00 00 49 ff c1 48 ff c3 75 eb e9 [ 47.240248][ T6852] RSP: 0018:ffffc900055079d0 EFLAGS: 00010293 [ 47.246292][ T6852] RAX: 2c230d75bfa39101 RBX: fffffffffffffffe RCX: ffffffff81e02557 [ 47.254628][ T6852] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffffc05de235 [ 47.262579][ T6852] RBP: ffffffffc05de125 R08: dffffc0000000000 R09: fffffbfff80bbc46 [ 47.270550][ T6852] R10: fffffbfff80bbc48 R11: 0000000000000000 R12: 1ffffffff80bbc46 [ 47.279202][ T6852] R13: dffffc0000000001 R14: 0000000000000002 R15: ffffffffc05de235 [ 47.287153][ T6852] FS: 0000000001790880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 47.296060][ T6852] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 47.302638][ T6852] CR2: fffffbfff80bbc46 CR3: 00000000a8da1000 CR4: 00000000001506e0 [ 47.310607][ T6852] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 47.318559][ T6852] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 47.326625][ T6852] Call Trace: [ 47.329902][ T6852] dqput+0x77/0x770 [ 47.333800][ T6852] __dquot_initialize+0x9e6/0xc30 [ 47.338806][ T6852] ? smk_access+0x17e/0x4a0 [ 47.343306][ T6852] ext4_xattr_set+0x9b/0x300 [ 47.347875][ T6852] ? ext4_xattr_security_get+0x40/0x40 [ 47.353308][ T6852] __vfs_setxattr+0x3be/0x400 [ 47.357989][ T6852] __vfs_setxattr_noperm+0x11e/0x4b0 [ 47.363261][ T6852] vfs_setxattr+0xde/0x270 [ 47.367684][ T6852] setxattr+0x167/0x350 [ 47.371814][ T6852] ? lock_acquire+0x148/0x720 [ 47.377169][ T6852] ? mnt_want_write+0x45/0x90 [ 47.381838][ T6852] ? lock_is_held_type+0xb3/0xe0 [ 47.386746][ T6852] ? preempt_count_add+0x66/0x150 [ 47.391758][ T6852] ? __mnt_want_write+0x1f5/0x270 [ 47.396766][ T6852] path_setxattr+0x109/0x1c0 [ 47.401379][ T6852] __x64_sys_lsetxattr+0xb4/0xd0 [ 47.406291][ T6852] do_syscall_64+0x31/0x70 [ 47.410699][ T6852] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 47.416568][ T6852] RIP: 0033:0x444a69 [ 47.420453][ T6852] 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 [ 47.440210][ T6852] RSP: 002b:00007fffd4b12948 EFLAGS: 00000246 ORIG_RAX: 00000000000000bd [ 47.448621][ T6852] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 0000000000444a69 [ 47.457186][ T6852] RDX: 0000000000000000 RSI: 00000000200003c0 RDI: 0000000020000380 [ 47.465128][ T6852] RBP: 00000000006cf018 R08: 0000000000000000 R09: 0000000000000000 [ 47.473069][ T6852] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402650 [ 47.481023][ T6852] R13: 00000000004026e0 R14: 0000000000000000 R15: 0000000000000000 [ 47.488968][ T6852] Modules linked in: [ 47.492845][ T6852] CR2: fffffbfff80bbc46 [ 47.496983][ T6852] ---[ end trace 5bbb9efd9ea37afa ]--- [ 47.502431][ T6852] RIP: 0010:check_memory_region+0x80/0x2f0 [ 47.508212][ T6852] Code: 01 00 00 00 00 fc ff df 4d 01 ea 4d 89 d6 4d 29 ce 49 83 fe 10 7f 2d 4d 85 f6 0f 84 ab 01 00 00 4c 89 cb 4c 29 d3 0f 1f 40 00 <45> 0f b6 19 45 84 db 0f 85 f3 01 00 00 49 ff c1 48 ff c3 75 eb e9 [ 47.527920][ T6852] RSP: 0018:ffffc900055079d0 EFLAGS: 00010293 [ 47.533989][ T6852] RAX: 2c230d75bfa39101 RBX: fffffffffffffffe RCX: ffffffff81e02557 [ 47.541931][ T6852] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffffc05de235 [ 47.549875][ T6852] RBP: ffffffffc05de125 R08: dffffc0000000000 R09: fffffbfff80bbc46 [ 47.557837][ T6852] R10: fffffbfff80bbc48 R11: 0000000000000000 R12: 1ffffffff80bbc46 [ 47.565800][ T6852] R13: dffffc0000000001 R14: 0000000000000002 R15: ffffffffc05de235 [ 47.573756][ T6852] FS: 0000000001790880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 47.582676][ T6852] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 47.589940][ T6852] CR2: fffffbfff80bbc46 CR3: 00000000a8da1000 CR4: 00000000001506e0 [ 47.598073][ T6852] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 47.606027][ T6852] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 47.613972][ T6852] Kernel panic - not syncing: Fatal exception [ 47.621091][ T6852] Kernel Offset: disabled [ 47.625405][ T6852] Rebooting in 86400 seconds..