[ 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 '10.128.1.21' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 39.259192] audit: type=1400 audit(1600717882.033:8): avc: denied { execmem } for pid=6481 comm="syz-executor865" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 39.274609] ntfs: (device loop0): is_boot_sector_ntfs(): Invalid end of sector marker. [ 39.288478] ------------[ cut here ]------------ [ 39.293302] kernel BUG at fs/ntfs/aops.c:203! [ 39.297955] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 39.303319] CPU: 0 PID: 6481 Comm: syz-executor865 Not tainted 4.19.146-syzkaller #0 [ 39.311189] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.320535] RIP: 0010:ntfs_readpage+0x1c0b/0x24d0 [ 39.325354] Code: ff e8 a9 93 16 ff 48 8b 9d 80 fd ff ff 31 ff 48 c1 eb 03 83 e3 01 89 de e8 c2 94 16 ff 84 db 0f 85 0b f0 ff ff e8 85 93 16 ff <0f> 0b 48 c7 c7 80 e3 bf 89 e8 87 bb 5a 01 e8 72 93 16 ff 0f 0b 48 [ 39.344231] RSP: 0018:ffff8880a4b17758 EFLAGS: 00010293 [ 39.349607] RAX: ffff8880a3f9a200 RBX: 0000000000000000 RCX: ffffffff825b2f4e [ 39.356853] RDX: 0000000000000000 RSI: ffffffff825b2f5b RDI: 0000000000000001 [ 39.364097] RBP: ffff88809255ea08 R08: 0000000000000001 R09: 0000000000000000 [ 39.371377] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000 [ 39.378661] R13: ffff88809255e788 R14: 0000000000000001 R15: ffffea00020f8bc0 [ 39.385909] FS: 0000000000e57880(0000) GS:ffff8880ae200000(0000) knlGS:0000000000000000 [ 39.394121] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.399978] CR2: 000000000043ecb0 CR3: 00000000a3f53000 CR4: 00000000001406f0 [ 39.407224] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 39.414470] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 39.421800] Call Trace: [ 39.424372] ? page_cache_tree_insert+0x410/0x410 [ 39.429211] ? check_preemption_disabled+0x41/0x2b0 [ 39.434204] ? ntfs_end_buffer_async_read+0x1300/0x1300 [ 39.439544] ? add_to_page_cache_lru+0x259/0x6c0 [ 39.444277] ? add_to_page_cache_locked+0x40/0x40 [ 39.449199] do_read_cache_page+0x533/0x1080 [ 39.453808] ? ntfs_end_buffer_async_read+0x1300/0x1300 [ 39.459162] map_mft_record+0x228/0xd00 [ 39.463127] ntfs_read_locked_inode+0x19c/0x5490 [ 39.467979] ntfs_read_inode_mount+0xcba/0x23b0 [ 39.472624] ntfs_fill_super+0x1761/0x89d2 [ 39.476837] ? snprintf+0xbb/0xf0 [ 39.480366] ? vsprintf+0x30/0x30 [ 39.483794] ? ntfs_remount+0x500/0x500 [ 39.489485] ? __mutex_add_waiter+0x160/0x160 [ 39.493955] ? set_blocksize+0x163/0x3f0 [ 39.497994] mount_bdev+0x2fc/0x3b0 [ 39.501595] ? ntfs_remount+0x500/0x500 [ 39.505558] mount_fs+0xa3/0x318 [ 39.508901] vfs_kern_mount.part.0+0x68/0x470 [ 39.513370] do_mount+0x51c/0x2f10 [ 39.516887] ? do_raw_spin_unlock+0x171/0x240 [ 39.521358] ? check_preemption_disabled+0x41/0x2b0 [ 39.526350] ? copy_mount_string+0x40/0x40 [ 39.530577] ? kmem_cache_alloc_trace+0x379/0x4b0 [ 39.535395] ? copy_mount_options+0x261/0x370 [ 39.539865] ksys_mount+0xcf/0x130 [ 39.543393] __x64_sys_mount+0xba/0x150 [ 39.547358] ? lockdep_hardirqs_on+0x3c1/0x5e0 [ 39.551916] do_syscall_64+0xf9/0x670 [ 39.555696] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 39.560861] RIP: 0033:0x446e9a [ 39.564030] 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 [ 39.582920] RSP: 002b:00007ffe2fc38088 EFLAGS: 00000287 ORIG_RAX: 00000000000000a5 [ 39.590603] RAX: ffffffffffffffda RBX: 00007ffe2fc380e0 RCX: 0000000000446e9a [ 39.597865] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffe2fc380a0 [ 39.605214] RBP: 00007ffe2fc380a0 R08: 00007ffe2fc380e0 R09: 00007ffe00000015 [ 39.612466] R10: 0000000000000000 R11: 0000000000000287 R12: 0000000000000008 [ 39.619712] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003 [ 39.628695] Modules linked in: [ 39.632778] ---[ end trace aab58a4638781a36 ]--- [ 39.637679] RIP: 0010:ntfs_readpage+0x1c0b/0x24d0 [ 39.642518] Code: ff e8 a9 93 16 ff 48 8b 9d 80 fd ff ff 31 ff 48 c1 eb 03 83 e3 01 89 de e8 c2 94 16 ff 84 db 0f 85 0b f0 ff ff e8 85 93 16 ff <0f> 0b 48 c7 c7 80 e3 bf 89 e8 87 bb 5a 01 e8 72 93 16 ff 0f 0b 48 [ 39.661614] RSP: 0018:ffff8880a4b17758 EFLAGS: 00010293 [ 39.667017] RAX: ffff8880a3f9a200 RBX: 0000000000000000 RCX: ffffffff825b2f4e [ 39.674292] RDX: 0000000000000000 RSI: ffffffff825b2f5b RDI: 0000000000000001 [ 39.681625] RBP: ffff88809255ea08 R08: 0000000000000001 R09: 0000000000000000 [ 39.688927] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000 [ 39.696228] R13: ffff88809255e788 R14: 0000000000000001 R15: ffffea00020f8bc0 [ 39.703528] FS: 0000000000e57880(0000) GS:ffff8880ae200000(0000) knlGS:0000000000000000 [ 39.711794] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.717712] CR2: 000000000043ecb0 CR3: 00000000a3f53000 CR4: 00000000001406f0 [ 39.724997] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 39.732295] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 39.739595] Kernel panic - not syncing: Fatal exception [ 39.746219] Kernel Offset: disabled [ 39.749830] Rebooting in 86400 seconds..