[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.48' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 56.210000][ T8472] ERROR: (device loop0): xtSearch: XT_GETPAGE: xtree page corrupt [ 56.210000][ T8472] [ 56.221189][ T8472] BUG: unable to handle page fault for address: ffffffffffffff80 [ 56.228906][ T8472] #PF: supervisor read access in kernel mode [ 56.234871][ T8472] #PF: error_code(0x0000) - not-present page [ 56.241445][ T8472] PGD b08f067 P4D b08f067 PUD b091067 PMD 0 [ 56.247502][ T8472] Oops: 0000 [#1] PREEMPT SMP KASAN [ 56.253290][ T8472] CPU: 1 PID: 8472 Comm: syz-executor936 Not tainted 5.10.0-rc6-syzkaller #0 [ 56.262165][ T8472] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.272210][ T8472] RIP: 0010:diFree+0x13d/0x2dc0 [ 56.277151][ T8472] Code: 28 48 8d 78 80 48 89 44 24 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 ef 23 00 00 48 8b 44 24 18 <4c> 8b 60 80 48 8b 44 24 20 49 8d 6c 24 04 48 c1 e8 0c 48 89 ea 48 [ 56.296925][ T8472] RSP: 0018:ffffc900011cf960 EFLAGS: 00010246 [ 56.302966][ T8472] RAX: 0000000000000000 RBX: ffff88801c1aa600 RCX: ffffffff82a84967 [ 56.310909][ T8472] RDX: 1ffffffffffffff0 RSI: ffffffff82aa7952 RDI: ffffffffffffff80 [ 56.318861][ T8472] RBP: 0000000000000000 R08: 0000000000000000 R09: ffff88802f75090f [ 56.326837][ T8472] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88802f750db8 [ 56.335408][ T8472] R13: ffff88802f750d08 R14: ffffffff89829b80 R15: ffff88802f750ce0 [ 56.343355][ T8472] FS: 0000000000ca5880(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 [ 56.352361][ T8472] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.359351][ T8472] CR2: ffffffffffffff80 CR3: 000000001424e000 CR4: 0000000000350ee0 [ 56.367469][ T8472] Call Trace: [ 56.370737][ T8472] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 56.376685][ T8472] ? __dquot_initialize+0x298/0xc20 [ 56.381851][ T8472] ? find_held_lock+0x2d/0x110 [ 56.386650][ T8472] ? dquot_initialize_needed+0x290/0x290 [ 56.392602][ T8472] ? diWrite+0x1430/0x1430 [ 56.397076][ T8472] ? lock_downgrade+0x6d0/0x6d0 [ 56.401948][ T8472] ? var_wake_function+0x130/0x130 [ 56.407042][ T8472] ? rwlock_bug.part.0+0x90/0x90 [ 56.411948][ T8472] jfs_evict_inode+0x2c9/0x370 [ 56.416769][ T8472] ? jfs_write_inode+0x1e0/0x1e0 [ 56.421677][ T8472] evict+0x2ed/0x750 [ 56.425544][ T8472] iput.part.0+0x3fe/0x820 [ 56.429929][ T8472] iput+0x58/0x70 [ 56.433805][ T8472] diFreeSpecial+0x6f/0x90 [ 56.438193][ T8472] jfs_mount+0x23f/0x3d0 [ 56.442421][ T8472] jfs_fill_super+0x5b1/0xbc0 [ 56.447073][ T8472] ? init_once+0x130/0x130 [ 56.451544][ T8472] ? set_blocksize+0x1c1/0x400 [ 56.456278][ T8472] mount_bdev+0x32e/0x3f0 [ 56.460576][ T8472] ? init_once+0x130/0x130 [ 56.464960][ T8472] ? jfs_get_dquots+0x10/0x10 [ 56.469605][ T8472] legacy_get_tree+0x105/0x220 [ 56.474352][ T8472] vfs_get_tree+0x89/0x2f0 [ 56.478735][ T8472] path_mount+0x13ad/0x20c0 [ 56.483223][ T8472] ? strncpy_from_user+0x2a0/0x3e0 [ 56.488302][ T8472] ? finish_automount+0xac0/0xac0 [ 56.493293][ T8472] ? getname_flags.part.0+0x1dd/0x4f0 [ 56.498631][ T8472] __x64_sys_mount+0x27f/0x300 [ 56.503363][ T8472] ? copy_mnt_ns+0xa60/0xa60 [ 56.507925][ T8472] ? syscall_enter_from_user_mode+0x1d/0x50 [ 56.513786][ T8472] do_syscall_64+0x2d/0x70 [ 56.518206][ T8472] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 56.524158][ T8472] RIP: 0033:0x446dea [ 56.528025][ T8472] Code: b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 fd ad 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 da ad fb ff c3 66 0f 1f 84 00 00 00 00 00 [ 56.547962][ T8472] RSP: 002b:00007ffd1d0fafe8 EFLAGS: 00000283 ORIG_RAX: 00000000000000a5 [ 56.556343][ T8472] RAX: ffffffffffffffda RBX: 00007ffd1d0fb030 RCX: 0000000000446dea [ 56.564289][ T8472] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffd1d0faff0 [ 56.572324][ T8472] RBP: 00007ffd1d0faff0 R08: 00007ffd1d0fb030 R09: 6f6f6c2f7665642f [ 56.580390][ T8472] R10: 0000000000008001 R11: 0000000000000283 R12: 0000000000000004 [ 56.588346][ T8472] R13: 0000000000000003 R14: 0000000000000003 R15: 0000000000000006 [ 56.596291][ T8472] Modules linked in: [ 56.600157][ T8472] CR2: ffffffffffffff80 [ 56.604305][ T8472] ---[ end trace 79bc54c5fb4624ff ]--- [ 56.609833][ T8472] RIP: 0010:diFree+0x13d/0x2dc0 [ 56.614772][ T8472] Code: 28 48 8d 78 80 48 89 44 24 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 ef 23 00 00 48 8b 44 24 18 <4c> 8b 60 80 48 8b 44 24 20 49 8d 6c 24 04 48 c1 e8 0c 48 89 ea 48 [ 56.634794][ T8472] RSP: 0018:ffffc900011cf960 EFLAGS: 00010246 [ 56.640857][ T8472] RAX: 0000000000000000 RBX: ffff88801c1aa600 RCX: ffffffff82a84967 [ 56.648902][ T8472] RDX: 1ffffffffffffff0 RSI: ffffffff82aa7952 RDI: ffffffffffffff80 [ 56.656947][ T8472] RBP: 0000000000000000 R08: 0000000000000000 R09: ffff88802f75090f [ 56.664910][ T8472] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88802f750db8 [ 56.672865][ T8472] R13: ffff88802f750d08 R14: ffffffff89829b80 R15: ffff88802f750ce0 [ 56.680852][ T8472] FS: 0000000000ca5880(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 [ 56.690291][ T8472] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.696865][ T8472] CR2: ffffffffffffff80 CR3: 000000001424e000 CR4: 0000000000350ee0 [ 56.704850][ T8472] Kernel panic - not syncing: Fatal exception [ 56.714625][ T8472] Kernel Offset: disabled [ 56.718931][ T8472] Rebooting in 86400 seconds..