Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.52' (ECDSA) to the list of known hosts. 2021/04/24 15:15:11 fuzzer started syzkaller login: [ 69.413705][ T8437] general protection fault, probably for non-canonical address 0xe0000212dffffd44: 0000 [#1] PREEMPT SMP KASAN [ 69.426618][ T8437] KASAN: probably user-memory-access in range [0x00003096ffffea20-0x00003096ffffea27] [ 69.436326][ T8437] CPU: 0 PID: 8437 Comm: syz-fuzzer Not tainted 5.12.0-rc8-next-20210423-syzkaller #0 [ 69.445917][ T8437] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.456543][ T8437] RIP: 0010:tomoyo_get_name+0xec/0x480 [ 69.462156][ T8437] Code: 8b a8 80 0a 8d 90 48 39 2c 24 0f 84 42 01 00 00 49 bc 00 00 00 00 00 fc ff df e8 7f 7e dd fd 48 8d 7d 20 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e e4 02 00 00 44 8b 75 20 89 [ 69.482761][ T8437] RSP: 0018:ffffc90000f0f5c8 EFLAGS: 00010206 [ 69.489161][ T8437] RAX: 00000612dffffd44 RBX: 000000006837bd7a RCX: 0000000000000000 [ 69.497383][ T8437] RDX: ffff888025359c80 RSI: ffffffff83977af1 RDI: 00003096ffffea20 [ 69.505996][ T8437] RBP: 00003096ffffea00 R08: 000000001516207d R09: ffffffff8c71e1c7 [ 69.514273][ T8437] R10: ffffffff83977b1b R11: 0000000000000000 R12: dffffc0000000000 [ 69.522608][ T8437] R13: ffff888015152b8d R14: 000000001516207d R15: 0000000000000022 [ 69.530789][ T8437] FS: 00000000018494b0(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 69.539762][ T8437] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 69.546403][ T8437] CR2: 0000559fa090f908 CR3: 0000000012958000 CR4: 00000000001506f0 [ 69.554604][ T8437] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 69.563676][ T8437] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 69.573165][ T8437] Call Trace: [ 69.577527][ T8437] tomoyo_parse_name_union+0xbc/0x160 [ 69.583437][ T8437] tomoyo_write_file+0x4c0/0x7f0 [ 69.589322][ T8437] ? tomoyo_path2_perm+0x6b0/0x6b0 [ 69.595147][ T8437] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 69.601946][ T8437] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 69.608546][ T8437] ? vsnprintf+0x2cc/0x14f0 [ 69.613715][ T8437] ? pointer+0xa00/0xa00 [ 69.618281][ T8437] ? find_held_lock+0x2d/0x110 [ 69.623216][ T8437] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 69.629612][ T8437] tomoyo_write_domain2+0x116/0x1d0 [ 69.634960][ T8437] ? tomoyo_write_pid+0x40/0x40 [ 69.639910][ T8437] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 69.646233][ T8437] tomoyo_supervisor+0xbc9/0xf00 [ 69.651170][ T8437] ? tomoyo_profile+0x50/0x50 [ 69.656362][ T8437] ? kasan_quarantine_put+0xf5/0x210 [ 69.661946][ T8437] ? lockdep_hardirqs_on+0x79/0x100 [ 69.667229][ T8437] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 69.673652][ T8437] ? tomoyo_path_matches_pattern+0x110/0x280 [ 69.680223][ T8437] ? tomoyo_check_path_acl+0xab/0x210 [ 69.686153][ T8437] ? __sanitizer_cov_trace_const_cmp2+0x22/0x80 [ 69.693061][ T8437] ? tomoyo_same_mount_acl+0x450/0x450 [ 69.699040][ T8437] tomoyo_path_permission+0x270/0x3a0 [ 69.704530][ T8437] tomoyo_path_perm+0x2f0/0x400 [ 69.709381][ T8437] ? tomoyo_check_open_permission+0x380/0x380 [ 69.716021][ T8437] ? may_linkat+0x2d0/0x2d0 [ 69.720713][ T8437] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 69.727557][ T8437] ? getname_flags.part.0+0x1dd/0x4f0 [ 69.733003][ T8437] ? __lock_acquire+0x16a7/0x5230 [ 69.738358][ T8437] security_inode_getattr+0xcf/0x140 [ 69.743919][ T8437] vfs_statx+0x164/0x390 [ 69.748547][ T8437] ? do_readlinkat+0x2f0/0x2f0 [ 69.753462][ T8437] __do_sys_newfstatat+0x96/0x120 [ 69.758626][ T8437] ? __do_compat_sys_newlstat+0x110/0x110 [ 69.764560][ T8437] ? __context_tracking_exit+0xb8/0xe0 [ 69.770109][ T8437] ? lock_downgrade+0x6e0/0x6e0 [ 69.774990][ T8437] ? lock_downgrade+0x6e0/0x6e0 [ 69.780270][ T8437] ? syscall_enter_from_user_mode+0x27/0x70 [ 69.786323][ T8437] do_syscall_64+0x3a/0xb0 [ 69.791006][ T8437] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 69.796990][ T8437] RIP: 0033:0x4af20a [ 69.801166][ T8437] Code: e8 3b 82 fb ff 48 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 4c 8b 54 24 28 4c 8b 44 24 30 4c 8b 4c 24 38 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 40 ff ff ff ff 48 c7 44 24 48 [ 69.821902][ T8437] RSP: 002b:000000c0002ad698 EFLAGS: 00000216 ORIG_RAX: 0000000000000106 [ 69.830526][ T8437] RAX: ffffffffffffffda RBX: 000000c00001e800 RCX: 00000000004af20a [ 69.838898][ T8437] RDX: 000000c00019a858 RSI: 000000c000191100 RDI: ffffffffffffff9c [ 69.846867][ T8437] RBP: 000000c0002ad710 R08: 0000000000000000 R09: 0000000000000000 [ 69.855093][ T8437] R10: 0000000000000100 R11: 0000000000000216 R12: ffffffffffffffff [ 69.863346][ T8437] R13: 0000000000000089 R14: 0000000000000088 R15: 0000000000000100 [ 69.871651][ T8437] Modules linked in: [ 69.876729][ T8437] ---[ end trace be824b900d48c85b ]--- [ 69.882615][ T8437] RIP: 0010:tomoyo_get_name+0xec/0x480 [ 69.899097][ T8437] Code: 8b a8 80 0a 8d 90 48 39 2c 24 0f 84 42 01 00 00 49 bc 00 00 00 00 00 fc ff df e8 7f 7e dd fd 48 8d 7d 20 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e e4 02 00 00 44 8b 75 20 89 [ 69.939170][ T8437] RSP: 0018:ffffc90000f0f5c8 EFLAGS: 00010206 [ 69.945319][ T8437] RAX: 00000612dffffd44 RBX: 000000006837bd7a RCX: 0000000000000000 [ 69.954452][ T8437] RDX: ffff888025359c80 RSI: ffffffff83977af1 RDI: 00003096ffffea20 [ 69.963797][ T8437] RBP: 00003096ffffea00 R08: 000000001516207d R09: ffffffff8c71e1c7 [ 69.971942][ T8437] R10: ffffffff83977b1b R11: 0000000000000000 R12: dffffc0000000000 [ 69.980236][ T8437] R13: ffff888015152b8d R14: 000000001516207d R15: 0000000000000022 [ 69.989399][ T8437] FS: 00000000018494b0(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 69.998550][ T8437] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.005204][ T8437] CR2: 00007f7d785b4000 CR3: 0000000012958000 CR4: 00000000001506f0 [ 70.013366][ T8437] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.021802][ T8437] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.030213][ T8437] Kernel panic - not syncing: Fatal exception [ 70.037259][ T8437] Kernel Offset: disabled [ 70.042028][ T8437] Rebooting in 86400 seconds..