Warning: Permanently added '10.128.1.36' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 38.863962] audit: type=1400 audit(1602770252.284:8): avc: denied { execmem } for pid=6494 comm="syz-executor012" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 38.882565] ERROR: (device loop0): xtSearch: XT_GETPAGE: xtree page corrupt [ 38.882565] [ 38.893272] BUG: unable to handle kernel paging request at ffffffffffffff80 [ 38.900381] PGD 9470067 P4D 9470067 PUD 9472067 PMD 0 [ 38.905657] Oops: 0000 [#1] PREEMPT SMP KASAN [ 38.910185] CPU: 1 PID: 6494 Comm: syz-executor012 Not tainted 4.19.150-syzkaller #0 [ 38.918043] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.927387] RIP: 0010:diFree+0x15b/0x24b0 [ 38.931513] 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 38 1e 00 00 48 8b 44 24 18 <48> 8b 68 80 4c 89 e8 48 c1 e8 0c 48 89 04 24 48 b8 00 00 00 00 00 [ 38.950410] RSP: 0018:ffff88808953f8b8 EFLAGS: 00010246 [ 38.955778] RAX: 0000000000000000 RBX: ffff88809ec6bcc0 RCX: ffffffff828b6da5 [ 38.963049] RDX: 1ffffffffffffff0 RSI: ffffffff828d9e15 RDI: ffffffffffffff80 [ 38.970295] RBP: ffff888082f1c468 R08: 0000000000000000 R09: 0000000000000000 [ 38.977542] R10: 0000000000000001 R11: 0000000000000001 R12: ffff888082f1c538 [ 38.984791] R13: 0000000000000001 R14: ffffffff883a6040 R15: ffff888082f1c468 [ 38.992039] FS: 00000000025c4880(0000) GS:ffff8880ae300000(0000) knlGS:0000000000000000 [ 39.000239] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.006097] CR2: ffffffffffffff80 CR3: 00000000a917c000 CR4: 00000000001406e0 [ 39.013363] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 39.020611] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 39.027961] Call Trace: [ 39.030549] ? mark_held_locks+0xf0/0xf0 [ 39.034607] ? mark_held_locks+0xf0/0xf0 [ 39.038647] ? mark_held_locks+0xf0/0xf0 [ 39.042691] ? __x64_sys_mount+0xba/0x150 [ 39.046821] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 39.052177] ? diWrite+0x1450/0x1450 [ 39.055871] ? find_held_lock+0x2d/0x110 [ 39.059924] ? dquot_initialize_needed+0x290/0x290 [ 39.064832] ? lock_downgrade+0x750/0x750 [ 39.068961] jfs_evict_inode+0x126/0x170 [ 39.073002] ? jfs_write_inode+0x1d0/0x1d0 [ 39.077216] evict+0x2ed/0x780 [ 39.080432] iput+0x511/0x890 [ 39.083541] diFreeSpecial+0x63/0x80 [ 39.087248] jfs_mount+0x23f/0x3d0 [ 39.090782] jfs_fill_super+0x55c/0xb50 [ 39.094736] ? parse_options+0xf50/0xf50 [ 39.098776] ? set_blocksize+0x163/0x3f0 [ 39.102837] mount_bdev+0x2fc/0x3b0 [ 39.106443] ? parse_options+0xf50/0xf50 [ 39.110483] mount_fs+0xa3/0x318 [ 39.113844] vfs_kern_mount.part.0+0x68/0x470 [ 39.118330] do_mount+0x51c/0x2f10 [ 39.121850] ? check_preemption_disabled+0x41/0x2b0 [ 39.126845] ? copy_mount_string+0x40/0x40 [ 39.131064] ? kmem_cache_alloc_trace+0x379/0x4b0 [ 39.135885] ? _copy_from_user+0xd2/0x130 [ 39.140010] ? copy_mount_options+0x261/0x370 [ 39.144486] ksys_mount+0xcf/0x130 [ 39.148007] __x64_sys_mount+0xba/0x150 [ 39.151959] ? lockdep_hardirqs_on+0x3c1/0x5e0 [ 39.156521] do_syscall_64+0xf9/0x670 [ 39.160304] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 39.165471] RIP: 0033:0x446dea [ 39.168647] 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 [ 39.187526] RSP: 002b:00007ffdcf911f98 EFLAGS: 00000283 ORIG_RAX: 00000000000000a5 [ 39.195211] RAX: ffffffffffffffda RBX: 00007ffdcf911fe0 RCX: 0000000000446dea [ 39.202457] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffdcf911fa0 [ 39.209828] RBP: 00007ffdcf911fa0 R08: 00007ffdcf911fe0 R09: 6f6f6c2f7665642f [ 39.217075] R10: 0000000000008001 R11: 0000000000000283 R12: 0000000000000004 [ 39.224325] R13: 0000000000000003 R14: 0000000000000003 R15: 0000000000000006 [ 39.231573] Modules linked in: [ 39.234744] CR2: ffffffffffffff80 [ 39.238176] ---[ end trace e3f5838396f0d1e6 ]--- [ 39.242926] RIP: 0010:diFree+0x15b/0x24b0 [ 39.247052] 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 38 1e 00 00 48 8b 44 24 18 <48> 8b 68 80 4c 89 e8 48 c1 e8 0c 48 89 04 24 48 b8 00 00 00 00 00 [ 39.266024] RSP: 0018:ffff88808953f8b8 EFLAGS: 00010246 [ 39.271404] RAX: 0000000000000000 RBX: ffff88809ec6bcc0 RCX: ffffffff828b6da5 [ 39.278655] RDX: 1ffffffffffffff0 RSI: ffffffff828d9e15 RDI: ffffffffffffff80 [ 39.285906] RBP: ffff888082f1c468 R08: 0000000000000000 R09: 0000000000000000 [ 39.293176] R10: 0000000000000001 R11: 0000000000000001 R12: ffff888082f1c538 [ 39.300455] R13: 0000000000000001 R14: ffffffff883a6040 R15: ffff888082f1c468 [ 39.307706] FS: 00000000025c4880(0000) GS:ffff8880ae300000(0000) knlGS:0000000000000000 [ 39.315925] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.321784] CR2: ffffffffffffff80 CR3: 00000000a917c000 CR4: 00000000001406e0 [ 39.329033] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 39.336295] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 39.343630] Kernel panic - not syncing: Fatal exception [ 39.350302] Kernel Offset: disabled [ 39.353921] Rebooting in 86400 seconds..