[ 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 Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ 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 '10.128.10.53' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 80.677657][ T26] audit: type=1400 audit(1633610459.867:8): avc: denied { execmem } for pid=6514 comm="syz-executor681" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 81.729799][ T6767] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 81.741630][ T6767] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 81.750256][ T6767] CPU: 1 PID: 6767 Comm: syz-executor681 Not tainted 5.15.0-rc4-syzkaller #0 [ 81.759103][ T6767] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 81.770862][ T6767] RIP: 0010:fuse_test_super+0x68/0xa0 [ 81.776251][ T6767] Code: 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 3a 48 8b 9b 78 06 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <80> 3c 02 00 75 12 31 c0 48 39 2b 5b 5d 0f 94 c0 c3 e8 72 c1 0c ff [ 81.796519][ T6767] RSP: 0018:ffffc90003137cc8 EFLAGS: 00010246 [ 81.802578][ T6767] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 81.810637][ T6767] RDX: 0000000000000000 RSI: ffffffff82af424d RDI: ffff88807cb4c678 [ 81.818704][ T6767] RBP: ffff88801c483800 R08: 0000000000000001 R09: 0000000000000003 [ 81.826657][ T6767] R10: fffff52000626f8e R11: 0000000000000000 R12: dffffc0000000000 [ 81.834627][ T6767] R13: ffffffff82af4240 R14: 0000000000000000 R15: 0000000000000002 [ 81.842581][ T6767] FS: 00005555556b1300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 81.851493][ T6767] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 81.858234][ T6767] CR2: 00007ff5d0670783 CR3: 000000006c615000 CR4: 00000000003506e0 [ 81.866186][ T6767] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 81.874499][ T6767] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 81.882459][ T6767] Call Trace: [ 81.885782][ T6767] sget_fc+0x1ff/0x7c0 [ 81.889838][ T6767] ? fuse_init_fs_context_submount+0x40/0x40 [ 81.895837][ T6767] fuse_get_tree+0x201/0x3f0 [ 81.900538][ T6767] vfs_get_tree+0x89/0x2f0 [ 81.904964][ T6767] path_mount+0x1320/0x1fa0 [ 81.909577][ T6767] ? finish_automount+0xaf0/0xaf0 [ 81.914638][ T6767] ? rcu_read_lock_sched_held+0x3a/0x70 [ 81.920192][ T6767] ? kmem_cache_free+0x169/0x200 [ 81.925259][ T6767] ? putname+0xfe/0x140 [ 81.929490][ T6767] __x64_sys_mount+0x27f/0x300 [ 81.934248][ T6767] ? copy_mnt_ns+0xae0/0xae0 [ 81.938822][ T6767] ? syscall_enter_from_user_mode+0x21/0x70 [ 81.944726][ T6767] do_syscall_64+0x35/0xb0 [ 81.949355][ T6767] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 81.955667][ T6767] RIP: 0033:0x7ff5d0616219 [ 81.960076][ T6767] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 81.979676][ T6767] RSP: 002b:00007fff0210c158 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 81.988080][ T6767] RAX: ffffffffffffffda RBX: 00007ff5d065a088 RCX: 00007ff5d0616219 [ 81.996139][ T6767] RDX: 0000000020002100 RSI: 00000000200020c0 RDI: 0000000000000000 [ 82.004252][ T6767] RBP: 0030656c69662f2e R08: 00000000200004c0 R09: 0000000000000001 [ 82.012300][ T6767] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000013ecd [ 82.020469][ T6767] R13: 00007fff0210c16c R14: 00007fff0210c180 R15: 00007fff0210c170 [ 82.028494][ T6767] Modules linked in: [ 82.032667][ T6767] ---[ end trace 56aa8bfa7ddc3d5a ]--- [ 82.038213][ T6767] RIP: 0010:fuse_test_super+0x68/0xa0 [ 82.043700][ T6767] Code: 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 3a 48 8b 9b 78 06 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <80> 3c 02 00 75 12 31 c0 48 39 2b 5b 5d 0f 94 c0 c3 e8 72 c1 0c ff [ 82.063532][ T6767] RSP: 0018:ffffc90003137cc8 EFLAGS: 00010246 [ 82.069601][ T6767] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 82.077959][ T6767] RDX: 0000000000000000 RSI: ffffffff82af424d RDI: ffff88807cb4c678 [ 82.085928][ T6767] RBP: ffff88801c483800 R08: 0000000000000001 R09: 0000000000000003 [ 82.093917][ T6767] R10: fffff52000626f8e R11: 0000000000000000 R12: dffffc0000000000 [ 82.101891][ T6767] R13: ffffffff82af4240 R14: 0000000000000000 R15: 0000000000000002 [ 82.109861][ T6767] FS: 00005555556b1300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 82.118782][ T6767] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 82.125368][ T6767] CR2: 00007ff5d0670783 CR3: 000000006c615000 CR4: 00000000003506e0 [ 82.133859][ T6767] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 82.141827][ T6767] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 82.149829][ T6767] Kernel panic - not syncing: Fatal exception [ 82.156144][ T6767] Kernel Offset: disabled [ 82.160454][ T6767] Rebooting in 86400 seconds..