Warning: Permanently added '10.128.0.89' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 68.929449][ T8433] BUG: unable to handle page fault for address: ffff888001000050 [ 68.929463][ T8433] #PF: supervisor write access in kernel mode [ 68.929470][ T8433] #PF: error_code(0x0003) - permissions violation [ 68.929478][ T8433] PGD 10e01067 P4D 10e01067 PUD 10e02067 PMD 80000000010001e1 [ 68.929498][ T8433] Oops: 0003 [#1] PREEMPT SMP KASAN [ 68.929510][ T8433] CPU: 1 PID: 8433 Comm: syz-executor067 Tainted: G W 5.13.0-syzkaller #0 [ 68.929524][ T8433] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 68.929531][ T8433] RIP: 0010:vga16fb_fillrect+0x993/0x18d0 [ 68.929551][ T8433] Code: 6c fd 48 63 44 24 10 45 31 f6 48 89 04 24 e8 44 a6 6c fd 31 ff 89 de 31 ed e8 79 ad 6c fd 85 db 4d 89 ec 74 22 e8 2d a6 6c fd <45> 88 34 24 83 c5 01 89 df 49 83 c4 01 89 ee e8 49 ae 6c fd 39 eb [ 68.929564][ T8433] RSP: 0018:ffffc90000eff848 EFLAGS: 00010293 [ 68.929574][ T8433] RAX: 0000000000000000 RBX: 000000000000001b RCX: 0000000000000000 [ 68.929582][ T8433] RDX: ffff88802d949c40 RSI: ffffffff8408e403 RDI: 0000000000000003 [ 68.929590][ T8433] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8408dd8d [ 68.929597][ T8433] R10: ffffffff8408e3f7 R11: 0000000000000000 R12: ffff888001000050 [ 68.929605][ T8433] R13: ffff888001000050 R14: 0000000000000000 R15: 000000000ffeb7ff [ 68.929614][ T8433] FS: 0000000001aa2300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 68.929627][ T8433] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 68.929636][ T8433] CR2: ffff888001000050 CR3: 00000000346fb000 CR4: 00000000001506e0 [ 68.929644][ T8433] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 68.929651][ T8433] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 68.929659][ T8433] Call Trace: [ 68.929664][ T8433] ? memcpy+0x39/0x60 [ 68.929681][ T8433] bit_clear_margins+0x3f6/0x4b0 [ 68.929697][ T8433] ? bit_bmove+0x210/0x210 [ 68.929711][ T8433] fbcon_clear_margins+0x1f1/0x280 [ 68.929742][ T8433] fbcon_switch+0xa8c/0x1620 [ 68.929756][ T8433] ? fbcon_deinit+0xe80/0xe80 [ 68.929770][ T8433] ? bit_putcs+0xd20/0xd20 [ 68.929783][ T8433] ? fbcon_cursor+0x51d/0x630 [ 68.929795][ T8433] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 68.929810][ T8433] ? con_is_visible+0x61/0x140 [ 68.929823][ T8433] redraw_screen+0x2b9/0x740 [ 68.929835][ T8433] ? vga16fb_update_fix+0x4a0/0x4a0 [ 68.929848][ T8433] ? csi_J+0xab0/0xab0 [ 68.929859][ T8433] ? fbcon_set_palette+0x462/0x630 [ 68.929872][ T8433] fbcon_modechanged+0x593/0x6d0 [ 68.929885][ T8433] fbcon_update_vcs+0x3a/0x50 [ 68.929898][ T8433] do_fb_ioctl+0x62e/0x690 [ 68.929913][ T8433] ? fb_getput_cmap+0x270/0x270 [ 68.929928][ T8433] ? tomoyo_execute_permission+0x4a0/0x4a0 [ 68.929946][ T8433] ? __sanitizer_cov_trace_switch+0x63/0xf0 [ 68.929959][ T8433] ? __sanitizer_cov_trace_const_cmp2+0x22/0x80 [ 68.929972][ T8433] ? do_vfs_ioctl+0x132/0x15d0 [ 68.929990][ T8433] ? vfs_fileattr_set+0xb60/0xb60 [ 68.930008][ T8433] ? lock_downgrade+0x6e0/0x6e0 [ 68.930021][ T8433] fb_ioctl+0xe7/0x150 [ 68.930035][ T8433] ? do_fb_ioctl+0x690/0x690 [ 68.930049][ T8433] __x64_sys_ioctl+0x193/0x200 [ 68.930062][ T8433] do_syscall_64+0x35/0xb0 [ 68.930077][ T8433] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 68.930094][ T8433] RIP: 0033:0x43efd9 [ 68.930105][ T8433] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 68.930116][ T8433] RSP: 002b:00007ffc362df848 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 68.930129][ T8433] RAX: ffffffffffffffda RBX: 0000000000400488 RCX: 000000000043efd9 [ 68.930137][ T8433] RDX: 0000000020000200 RSI: 0000000000004601 RDI: 0000000000000003 [ 68.930144][ T8433] RBP: 0000000000402fc0 R08: 0000000000000000 R09: 0000000000400488 [ 68.930152][ T8433] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000403050 [ 68.930159][ T8433] R13: 0000000000000000 R14: 00000000004ac018 R15: 0000000000400488 [ 68.930170][ T8433] Modules linked in: [ 68.930176][ T8433] CR2: ffff888001000050 [ 68.930186][ T8433] ---[ end trace 39dce64bc5621bd3 ]--- [ 68.930192][ T8433] RIP: 0010:vga16fb_fillrect+0x993/0x18d0 [ 68.930206][ T8433] Code: 6c fd 48 63 44 24 10 45 31 f6 48 89 04 24 e8 44 a6 6c fd 31 ff 89 de 31 ed e8 79 ad 6c fd 85 db 4d 89 ec 74 22 e8 2d a6 6c fd <45> 88 34 24 83 c5 01 89 df 49 83 c4 01 89 ee e8 49 ae 6c fd 39 eb [ 68.930217][ T8433] RSP: 0018:ffffc90000eff848 EFLAGS: 00010293 [ 68.930226][ T8433] RAX: 0000000000000000 RBX: 000000000000001b RCX: 0000000000000000 [ 68.930234][ T8433] RDX: ffff88802d949c40 RSI: ffffffff8408e403 RDI: 0000000000000003 [ 68.930242][ T8433] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8408dd8d [ 68.930249][ T8433] R10: ffffffff8408e3f7 R11: 0000000000000000 R12: ffff888001000050 [ 68.930257][ T8433] R13: ffff888001000050 R14: 0000000000000000 R15: 000000000ffeb7ff [ 68.930265][ T8433] FS: 0000000001aa2300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 68.930278][ T8433] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 68.930286][ T8433] CR2: ffff888001000050 CR3: 00000000346fb000 CR4: 00000000001506e0 [ 68.930294][ T8433] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 68.930301][ T8433] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 68.930310][ T8433] Kernel panic - not syncing: Fatal exception [ 68.931200][ T8433] Kernel Offset: disabled [ 69.455262][ T8433] Rebooting in 86400 seconds..