Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.12' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 62.324856][ T8474] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN [ 62.336628][ T8474] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] [ 62.345027][ T8474] CPU: 0 PID: 8474 Comm: syz-executor057 Not tainted 5.10.0-rc2-syzkaller #0 [ 62.353765][ T8474] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.363822][ T8474] RIP: 0010:jffs2_parse_param+0x141/0x330 [ 62.369522][ T8474] Code: 48 c1 ea 03 4d 63 fc 80 3c 02 00 0f 85 de 01 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 75 00 49 8d 7e 08 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 c8 01 00 00 4d 8b 76 08 4c 89 ff 4c 89 f6 e8 06 [ 62.389142][ T8474] RSP: 0018:ffffc9000156fb78 EFLAGS: 00010202 [ 62.395182][ T8474] RAX: dffffc0000000000 RBX: ffff88801306a400 RCX: ffffffff828600a4 [ 62.403124][ T8474] RDX: 0000000000000001 RSI: ffffffff828600b6 RDI: 0000000000000008 [ 62.411074][ T8474] RBP: 1ffff920002adf6f R08: 0000000000000001 R09: ffff888025367a13 [ 62.419019][ T8474] R10: 00000000003fffff R11: 0000000000000000 R12: 0000000000000000 [ 62.426976][ T8474] R13: ffff88802f898000 R14: 0000000000000000 R15: 0000000000000000 [ 62.434935][ T8474] FS: 0000000001242880(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 [ 62.443838][ T8474] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.450432][ T8474] CR2: 000000000043e830 CR3: 0000000021511000 CR4: 00000000001506f0 [ 62.458431][ T8474] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 62.466376][ T8474] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 62.474318][ T8474] Call Trace: [ 62.477593][ T8474] ? jffs2_alloc_inode+0x40/0x40 [ 62.482517][ T8474] ? vfs_parse_fs_param+0x530/0x550 [ 62.487689][ T8474] ? rcu_read_lock_sched_held+0x3a/0x70 [ 62.493202][ T8474] ? jffs2_alloc_inode+0x40/0x40 [ 62.498113][ T8474] vfs_parse_fs_param+0x203/0x550 [ 62.503143][ T8474] vfs_parse_fs_string+0xe6/0x150 [ 62.508139][ T8474] ? vfs_parse_fs_param+0x550/0x550 [ 62.513320][ T8474] ? bpf_lsm_sb_eat_lsm_opts+0x5/0x10 [ 62.518663][ T8474] generic_parse_monolithic+0x16f/0x1f0 [ 62.524177][ T8474] ? vfs_parse_fs_string+0x150/0x150 [ 62.529431][ T8474] ? jffs2_get_parent+0x60/0x60 [ 62.534251][ T8474] ? alloc_fs_context+0x56e/0x880 [ 62.539245][ T8474] path_mount+0x1365/0x20c0 [ 62.543720][ T8474] ? strncpy_from_user+0x29e/0x3a0 [ 62.548812][ T8474] ? finish_automount+0xac0/0xac0 [ 62.553839][ T8474] ? getname_flags.part.0+0x1dd/0x4f0 [ 62.559183][ T8474] __x64_sys_mount+0x27f/0x300 [ 62.563918][ T8474] ? copy_mnt_ns+0xa60/0xa60 [ 62.568482][ T8474] ? syscall_enter_from_user_mode+0x1d/0x50 [ 62.574355][ T8474] do_syscall_64+0x2d/0x70 [ 62.578746][ T8474] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 62.584607][ T8474] RIP: 0033:0x44699a [ 62.588479][ T8474] Code: b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 7d ae 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 5a ae fb ff c3 66 0f 1f 84 00 00 00 00 00 [ 62.608054][ T8474] RSP: 002b:00007fff92d28e88 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 62.616439][ T8474] RAX: ffffffffffffffda RBX: 00007fff92d28ed0 RCX: 000000000044699a [ 62.624382][ T8474] RDX: 0000000020001300 RSI: 0000000020001340 RDI: 0000000000000000 [ 62.632337][ T8474] RBP: 0000000000000000 R08: 00007fff92d28ed0 R09: 0000000000000014 [ 62.640280][ T8474] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401c80 [ 62.648222][ T8474] R13: 0000000000401d10 R14: 0000000000000000 R15: 0000000000000000 [ 62.656180][ T8474] Modules linked in: [ 62.665261][ T8474] ---[ end trace 19035a35ee06f84c ]--- [ 62.670717][ T8474] RIP: 0010:jffs2_parse_param+0x141/0x330 [ 62.676588][ T8474] Code: 48 c1 ea 03 4d 63 fc 80 3c 02 00 0f 85 de 01 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 75 00 49 8d 7e 08 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 c8 01 00 00 4d 8b 76 08 4c 89 ff 4c 89 f6 e8 06 [ 62.696229][ T8474] RSP: 0018:ffffc9000156fb78 EFLAGS: 00010202 [ 62.702311][ T8474] RAX: dffffc0000000000 RBX: ffff88801306a400 RCX: ffffffff828600a4 [ 62.710781][ T8474] RDX: 0000000000000001 RSI: ffffffff828600b6 RDI: 0000000000000008 [ 62.718782][ T8474] RBP: 1ffff920002adf6f R08: 0000000000000001 R09: ffff888025367a13 [ 62.726779][ T8474] R10: 00000000003fffff R11: 0000000000000000 R12: 0000000000000000 [ 62.734751][ T8474] R13: ffff88802f898000 R14: 0000000000000000 R15: 0000000000000000 [ 62.742733][ T8474] FS: 0000000001242880(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 [ 62.751687][ T8474] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.758304][ T8474] CR2: 00007fa52190f000 CR3: 0000000021511000 CR4: 00000000001506f0 [ 62.766305][ T8474] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 62.774282][ T8474] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 62.782874][ T8474] Kernel panic - not syncing: Fatal exception [ 62.789592][ T8474] Kernel Offset: disabled [ 62.793913][ T8474] Rebooting in 86400 seconds..