[ 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 '10.128.1.37' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 66.372161][ T8480] general protection fault, probably for non-canonical address 0xdffffc04422cfb38: 0000 [#1] PREEMPT SMP KASAN [ 66.383896][ T8480] KASAN: probably user-memory-access in range [0x000000221167d9c0-0x000000221167d9c7] [ 66.393417][ T8480] CPU: 0 PID: 8480 Comm: syz-executor292 Not tainted 5.10.0-rc2-syzkaller #0 [ 66.402147][ T8480] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.412192][ T8480] RIP: 0010:io_uring_show_cred+0x32f/0x5f0 [ 66.417988][ T8480] Code: 3c 02 00 0f 85 a8 02 00 00 49 8b ae a0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 4d 04 48 89 ca 48 89 4c 24 18 48 c1 ea 03 <0f> b6 14 02 48 89 c8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 e4 [ 66.437588][ T8480] RSP: 0018:ffffc900015ff9f0 EFLAGS: 00010203 [ 66.443632][ T8480] RAX: dffffc0000000000 RBX: ffff8880213f4c00 RCX: 000000221167d9c4 [ 66.451583][ T8480] RDX: 00000004422cfb38 RSI: ffffffff81d32adc RDI: ffff888014b101a0 [ 66.459530][ T8480] RBP: 000000221167d9c0 R08: 0000000000000001 R09: ffff8880272840ce [ 66.467481][ T8480] R10: ffffed1004e50819 R11: 0000000000000000 R12: 0000000000000001 [ 66.475432][ T8480] R13: ffff8880136c4cb8 R14: ffff888014b10100 R15: ffffffff8b1fe940 [ 66.483384][ T8480] FS: 0000000001182880(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 [ 66.492294][ T8480] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.498855][ T8480] CR2: 0000000000455310 CR3: 000000001b604000 CR4: 00000000001506f0 [ 66.506806][ T8480] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 66.514868][ T8480] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 66.522816][ T8480] Call Trace: [ 66.526088][ T8480] ? __bpf_trace_io_uring_task_add+0x40/0x40 [ 66.532052][ T8480] idr_for_each+0x113/0x220 [ 66.536530][ T8480] ? idr_find+0x50/0x50 [ 66.540661][ T8480] ? io_uring_show_fdinfo+0x8b8/0xda0 [ 66.546034][ T8480] io_uring_show_fdinfo+0x923/0xda0 [ 66.551212][ T8480] ? percpu_ref_put_many+0x260/0x260 [ 66.556471][ T8480] seq_show+0x4a8/0x700 [ 66.560604][ T8480] seq_read+0x432/0x1070 [ 66.564841][ T8480] do_iter_read+0x48e/0x6e0 [ 66.569338][ T8480] vfs_readv+0xe5/0x150 [ 66.573484][ T8480] ? vfs_iter_read+0xa0/0xa0 [ 66.578066][ T8480] ? rcu_read_lock_sched_held+0x3a/0x70 [ 66.583597][ T8480] ? putname+0xe1/0x120 [ 66.587731][ T8480] ? do_sys_openat2+0xa1/0x420 [ 66.592473][ T8480] ? build_open_flags+0x650/0x650 [ 66.597476][ T8480] __x64_sys_preadv+0x231/0x310 [ 66.602302][ T8480] ? __ia32_sys_writev+0xb0/0xb0 [ 66.607216][ T8480] ? syscall_enter_from_user_mode+0x1d/0x50 [ 66.613106][ T8480] do_syscall_64+0x2d/0x70 [ 66.617501][ T8480] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 66.623368][ T8480] RIP: 0033:0x4403a9 [ 66.627239][ T8480] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 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 db 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 66.647082][ T8480] RSP: 002b:00007fff45cb17f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000127 [ 66.655472][ T8480] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004403a9 [ 66.663435][ T8480] RDX: 0000000000000333 RSI: 00000000200017c0 RDI: 0000000000000004 [ 66.671383][ T8480] RBP: 00000000006ca018 R08: 0000000000000000 R09: 65732f636f72702f [ 66.679442][ T8480] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401c10 [ 66.687397][ T8480] R13: 0000000000401ca0 R14: 0000000000000000 R15: 0000000000000000 [ 66.695801][ T8480] Modules linked in: [ 66.700477][ T8480] ---[ end trace 2f3a282977161035 ]--- [ 66.706006][ T8480] RIP: 0010:io_uring_show_cred+0x32f/0x5f0 [ 66.711878][ T8480] Code: 3c 02 00 0f 85 a8 02 00 00 49 8b ae a0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 4d 04 48 89 ca 48 89 4c 24 18 48 c1 ea 03 <0f> b6 14 02 48 89 c8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 e4 [ 66.731529][ T8480] RSP: 0018:ffffc900015ff9f0 EFLAGS: 00010203 [ 66.737584][ T8480] RAX: dffffc0000000000 RBX: ffff8880213f4c00 RCX: 000000221167d9c4 [ 66.746089][ T8480] RDX: 00000004422cfb38 RSI: ffffffff81d32adc RDI: ffff888014b101a0 [ 66.754122][ T8480] RBP: 000000221167d9c0 R08: 0000000000000001 R09: ffff8880272840ce [ 66.762120][ T8480] R10: ffffed1004e50819 R11: 0000000000000000 R12: 0000000000000001 [ 66.770088][ T8480] R13: ffff8880136c4cb8 R14: ffff888014b10100 R15: ffffffff8b1fe940 [ 66.778105][ T8480] FS: 0000000001182880(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 [ 66.787169][ T8480] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.793796][ T8480] CR2: 0000000000455310 CR3: 000000001b604000 CR4: 00000000001506f0 [ 66.801903][ T8480] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 66.809884][ T8480] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 66.817903][ T8480] Kernel panic - not syncing: Fatal exception [ 66.824741][ T8480] Kernel Offset: disabled [ 66.829128][ T8480] Rebooting in 86400 seconds..