[ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. [ OK ] Started OpenBSD Secure Shell server. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.49' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 68.809442][ T8456] loop0: detected capacity change from 8 to 0 [ 68.822763][ T8456] ------------[ cut here ]------------ [ 68.829868][ T8456] WARNING: CPU: 0 PID: 8456 at mm/page_alloc.c:4977 __alloc_pages_nodemask+0x5f8/0x730 [ 68.840317][ T8456] Modules linked in: [ 68.844765][ T8456] CPU: 0 PID: 8456 Comm: syz-executor943 Not tainted 5.11.0-rc2-next-20210105-syzkaller #0 [ 68.855428][ T8456] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 68.866092][ T8456] RIP: 0010:__alloc_pages_nodemask+0x5f8/0x730 [ 68.872289][ T8456] Code: 00 00 0c 00 0f 85 a7 00 00 00 8b 3c 24 4c 89 f2 44 89 e6 c6 44 24 70 00 48 89 6c 24 58 e8 d0 d7 ff ff 49 89 c5 e9 ea fc ff ff <0f> 0b e9 b5 fd ff ff 89 74 24 14 4c 89 4c 24 08 4c 89 74 24 18 e8 [ 68.892374][ T8456] RSP: 0018:ffffc9000112fa98 EFLAGS: 00010246 [ 68.899173][ T8456] RAX: 0000000000000000 RBX: 1ffff92000225f57 RCX: 0000000000000000 [ 68.907230][ T8456] RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 0000000000040cc0 [ 68.915308][ T8456] RBP: 0000000000040cc0 R08: 0000000000000000 R09: 0000000000000000 [ 68.923447][ T8456] R10: ffffffff81b25651 R11: 0000000000000000 R12: 0000000000000034 [ 68.931578][ T8456] R13: 0000000000000034 R14: 0000000000000000 R15: 00000000e24d8401 [ 68.939651][ T8456] FS: 00000000019a2880(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 [ 68.948672][ T8456] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 68.955373][ T8456] CR2: 0000559ed1ff3180 CR3: 000000001b421000 CR4: 00000000001506e0 [ 68.963357][ T8456] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 68.972227][ T8456] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 68.981076][ T8456] Call Trace: [ 68.985105][ T8456] ? __alloc_pages_slowpath.constprop.0+0x2240/0x2240 [ 68.991976][ T8456] ? mark_held_locks+0x9f/0xe0 [ 68.996974][ T8456] alloc_pages_current+0x18c/0x2a0 [ 69.002260][ T8456] kmalloc_order+0x2e/0xb0 [ 69.006776][ T8456] kmalloc_order_trace+0x14/0x120 [ 69.011818][ T8456] squashfs_read_table+0x43/0x1e0 [ 69.016938][ T8456] ? squashfs_read_xattr_id_table+0xed/0x220 [ 69.022929][ T8456] squashfs_read_xattr_id_table+0x191/0x220 [ 69.028998][ T8456] squashfs_fill_super+0xcfb/0x23b0 [ 69.034305][ T8456] get_tree_bdev+0x421/0x740 [ 69.038892][ T8456] ? init_once+0x20/0x20 [ 69.043123][ T8456] vfs_get_tree+0x89/0x2f0 [ 69.047587][ T8456] path_mount+0x12ae/0x1e70 [ 69.052102][ T8456] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 69.058431][ T8456] ? strncpy_from_user+0x2a0/0x3e0 [ 69.063557][ T8456] ? finish_automount+0xac0/0xac0 [ 69.068690][ T8456] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 69.075019][ T8456] ? getname_flags.part.0+0x1dd/0x4f0 [ 69.080398][ T8456] __x64_sys_mount+0x27f/0x300 [ 69.085212][ T8456] ? copy_mnt_ns+0xae0/0xae0 [ 69.089828][ T8456] ? syscall_enter_from_user_mode+0x1d/0x50 [ 69.096522][ T8456] do_syscall_64+0x2d/0x70 [ 69.100989][ T8456] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 69.107478][ T8456] RIP: 0033:0x446d1a [ 69.111425][ T8456] Code: b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 fd ad fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 da ad fb ff c3 66 0f 1f 84 00 00 00 00 00 [ 69.131687][ T8456] RSP: 002b:00007ffe89cbd7b8 EFLAGS: 00000293 ORIG_RAX: 00000000000000a5 [ 69.140309][ T8456] RAX: ffffffffffffffda RBX: 00007ffe89cbd810 RCX: 0000000000446d1a [ 69.148380][ T8456] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffe89cbd7d0 [ 69.156402][ T8456] RBP: 00007ffe89cbd7d0 R08: 00007ffe89cbd810 R09: 00007ffe00000015 [ 69.164457][ T8456] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001 [ 69.172429][ T8456] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003 [ 69.180468][ T8456] Kernel panic - not syncing: panic_on_warn set ... [ 69.187065][ T8456] CPU: 1 PID: 8456 Comm: syz-executor943 Not tainted 5.11.0-rc2-next-20210105-syzkaller #0 [ 69.197025][ T8456] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.207063][ T8456] Call Trace: [ 69.210328][ T8456] dump_stack+0x107/0x163 [ 69.214646][ T8456] panic+0x306/0x73d [ 69.218525][ T8456] ? __warn_printk+0xf3/0xf3 [ 69.223124][ T8456] ? __warn.cold+0x1a/0x44 [ 69.227526][ T8456] ? __alloc_pages_nodemask+0x5f8/0x730 [ 69.233056][ T8456] __warn.cold+0x35/0x44 [ 69.237303][ T8456] ? __alloc_pages_nodemask+0x5f8/0x730 [ 69.242845][ T8456] report_bug+0x1bd/0x210 [ 69.247164][ T8456] handle_bug+0x3c/0x60 [ 69.251322][ T8456] exc_invalid_op+0x14/0x40 [ 69.255813][ T8456] asm_exc_invalid_op+0x12/0x20 [ 69.260647][ T8456] RIP: 0010:__alloc_pages_nodemask+0x5f8/0x730 [ 69.266785][ T8456] Code: 00 00 0c 00 0f 85 a7 00 00 00 8b 3c 24 4c 89 f2 44 89 e6 c6 44 24 70 00 48 89 6c 24 58 e8 d0 d7 ff ff 49 89 c5 e9 ea fc ff ff <0f> 0b e9 b5 fd ff ff 89 74 24 14 4c 89 4c 24 08 4c 89 74 24 18 e8 [ 69.286393][ T8456] RSP: 0018:ffffc9000112fa98 EFLAGS: 00010246 [ 69.292458][ T8456] RAX: 0000000000000000 RBX: 1ffff92000225f57 RCX: 0000000000000000 [ 69.300416][ T8456] RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 0000000000040cc0 [ 69.308377][ T8456] RBP: 0000000000040cc0 R08: 0000000000000000 R09: 0000000000000000 [ 69.316328][ T8456] R10: ffffffff81b25651 R11: 0000000000000000 R12: 0000000000000034 [ 69.324285][ T8456] R13: 0000000000000034 R14: 0000000000000000 R15: 00000000e24d8401 [ 69.332242][ T8456] ? policy_node+0xe1/0x140 [ 69.336743][ T8456] ? __alloc_pages_slowpath.constprop.0+0x2240/0x2240 [ 69.343497][ T8456] ? mark_held_locks+0x9f/0xe0 [ 69.348250][ T8456] alloc_pages_current+0x18c/0x2a0 [ 69.353357][ T8456] kmalloc_order+0x2e/0xb0 [ 69.357762][ T8456] kmalloc_order_trace+0x14/0x120 [ 69.362773][ T8456] squashfs_read_table+0x43/0x1e0 [ 69.367783][ T8456] ? squashfs_read_xattr_id_table+0xed/0x220 [ 69.373751][ T8456] squashfs_read_xattr_id_table+0x191/0x220 [ 69.379631][ T8456] squashfs_fill_super+0xcfb/0x23b0 [ 69.384822][ T8456] get_tree_bdev+0x421/0x740 [ 69.389393][ T8456] ? init_once+0x20/0x20 [ 69.393634][ T8456] vfs_get_tree+0x89/0x2f0 [ 69.398039][ T8456] path_mount+0x12ae/0x1e70 [ 69.402526][ T8456] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 69.408751][ T8456] ? strncpy_from_user+0x2a0/0x3e0 [ 69.413848][ T8456] ? finish_automount+0xac0/0xac0 [ 69.418855][ T8456] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 69.425080][ T8456] ? getname_flags.part.0+0x1dd/0x4f0 [ 69.430458][ T8456] __x64_sys_mount+0x27f/0x300 [ 69.435207][ T8456] ? copy_mnt_ns+0xae0/0xae0 [ 69.439781][ T8456] ? syscall_enter_from_user_mode+0x1d/0x50 [ 69.445671][ T8456] do_syscall_64+0x2d/0x70 [ 69.450072][ T8456] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 69.455967][ T8456] RIP: 0033:0x446d1a [ 69.460108][ T8456] Code: b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 fd ad fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 da ad fb ff c3 66 0f 1f 84 00 00 00 00 00 [ 69.479698][ T8456] RSP: 002b:00007ffe89cbd7b8 EFLAGS: 00000293 ORIG_RAX: 00000000000000a5 [ 69.488092][ T8456] RAX: ffffffffffffffda RBX: 00007ffe89cbd810 RCX: 0000000000446d1a [ 69.496046][ T8456] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffe89cbd7d0 [ 69.504001][ T8456] RBP: 00007ffe89cbd7d0 R08: 00007ffe89cbd810 R09: 00007ffe00000015 [ 69.511954][ T8456] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001 [ 69.519908][ T8456] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003 [ 69.528634][ T8456] Kernel Offset: disabled [ 69.533037][ T8456] Rebooting in 86400 seconds..