[ 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 '10.128.10.46' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 34.122115] audit: type=1400 audit(1601595964.696:8): avc: denied { execmem } for pid=6344 comm="syz-executor588" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 34.133975] BUG: unable to handle kernel paging request at ffffffffffffff80 [ 34.149114] IP: diFree+0x12e/0x2830 [ 34.152730] PGD 7c6d067 P4D 7c6d067 PUD 7c6f067 PMD 0 [ 34.158007] Oops: 0000 [#1] PREEMPT SMP KASAN [ 34.162483] Modules linked in: [ 34.165653] CPU: 1 PID: 6344 Comm: syz-executor588 Not tainted 4.14.198-syzkaller #0 [ 34.173505] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.182859] task: ffff88809f372540 task.stack: ffff888096348000 [ 34.188926] RIP: 0010:diFree+0x12e/0x2830 [ 34.193046] RSP: 0018:ffff88809634f9a8 EFLAGS: 00010246 [ 34.198399] RAX: 0000000000000000 RBX: ffff88809b19e040 RCX: ffff88808263a474 [ 34.205650] RDX: 1ffffffffffffff0 RSI: 0000000000000000 RDI: ffffffffffffff80 [ 34.212894] RBP: ffff88808263a468 R08: ffffffff8a0b5a10 R09: 0000000000000001 [ 34.220210] R10: 0000000000000000 R11: ffff88809f372540 R12: ffff88808263a468 [ 34.227460] R13: ffff88808263a490 R14: ffffffff86d12980 R15: ffff88808263a620 [ 34.234712] FS: 0000000002378880(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 [ 34.242930] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 34.248795] CR2: ffffffffffffff80 CR3: 0000000097c4c000 CR4: 00000000001406e0 [ 34.256042] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 34.263293] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 34.270535] Call Trace: [ 34.273101] ? trace_hardirqs_on+0x10/0x10 [ 34.277325] ? trace_hardirqs_on+0x10/0x10 [ 34.281537] ? truncate_inode_pages_range+0x45a/0x13e0 [ 34.286885] ? lock_acquire+0x170/0x3f0 [ 34.290847] ? generic_error_remove_page+0xb0/0xb0 [ 34.295751] ? __inode_wait_for_writeback+0x140/0x190 [ 34.300930] ? dquot_initialize_needed+0x240/0x240 [ 34.305846] ? diWrite+0x1240/0x1240 [ 34.309535] ? jfs_write_inode+0x190/0x190 [ 34.313744] jfs_evict_inode+0xee/0x130 [ 34.317696] evict+0x2c8/0x700 [ 34.320865] iput+0x458/0x7e0 [ 34.323961] diFreeSpecial+0x63/0x80 [ 34.327663] jfs_mount+0x20a/0x380 [ 34.331178] jfs_fill_super+0x52a/0xab0 [ 34.335141] ? parse_options+0xd10/0xd10 [ 34.339191] ? set_blocksize+0x125/0x380 [ 34.343238] mount_bdev+0x2b3/0x360 [ 34.346838] ? parse_options+0xd10/0xd10 [ 34.350873] mount_fs+0x92/0x2a0 [ 34.354212] vfs_kern_mount.part.0+0x5b/0x470 [ 34.358682] do_mount+0xe53/0x2a00 [ 34.362209] ? retint_kernel+0x2d/0x2d [ 34.366088] ? copy_mount_string+0x40/0x40 [ 34.370309] ? copy_mount_options+0x194/0x2f0 [ 34.374886] ? copy_mount_options+0x1fa/0x2f0 [ 34.379365] ? copy_mnt_ns+0xa30/0xa30 [ 34.383235] SyS_mount+0xa8/0x120 [ 34.386663] ? copy_mnt_ns+0xa30/0xa30 [ 34.390541] do_syscall_64+0x1d5/0x640 [ 34.394414] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 34.399588] RIP: 0033:0x446d5a [ 34.402749] RSP: 002b:00007ffc0b79aa08 EFLAGS: 00000283 ORIG_RAX: 00000000000000a5 [ 34.410430] RAX: ffffffffffffffda RBX: 00007ffc0b79aa60 RCX: 0000000000446d5a [ 34.417673] RDX: 0000000020000040 RSI: 00000000200000c0 RDI: 00007ffc0b79aa20 [ 34.424917] RBP: 00007ffc0b79aa20 R08: 00007ffc0b79aa60 R09: 00007ffc00000015 [ 34.432249] R10: 0000000000000000 R11: 0000000000000283 R12: 0000000000000002 [ 34.439505] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003 [ 34.446762] Code: 43 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 5b 20 00 00 48 8b 44 24 18 <48> 8b 68 80 48 8b 44 24 20 4c 8d 6d 04 48 c1 e8 0c 4c 89 ea 48 [ 34.465923] RIP: diFree+0x12e/0x2830 RSP: ffff88809634f9a8 [ 34.471518] CR2: ffffffffffffff80 [ 34.474948] ---[ end trace 0961b5d9528370da ]--- [ 34.479674] Kernel panic - not syncing: Fatal exception [ 34.486192] Kernel Offset: disabled [ 34.489824] Rebooting in 86400 seconds..