Problem COMODO Antivirus for Linux (CAVL) v1.1.268025.1

I tested Ubuntu 12.04(Kernel 3.2).

Changes:

  • Fix bug: OS hang while processing realtime scanning task
  • Fix bug: Scanning stops abnormally after several full disk scanning

But, hang up when run a full scan.
This is even if don’t install the kernel driver.

If the kernel driver is installed, the result is a kernel panic.
It occurs in dput called in fput.

I don’t have kernel 3.2 log.
Examples of kernel 3.9 log here.

Jun 15 00:44:06 ns kernel: [ 402.301840] ------------[ cut here ]------------
Jun 15 00:44:06 ns kernel: [ 402.301851] kernel BUG at fs/dcache.c:534!
Jun 15 00:44:06 ns kernel: [ 402.301853] invalid opcode: 0000 [#1] SMP
Jun 15 00:44:06 ns kernel: [ 402.301855] Modules linked in: nls_utf8 isofs avflt(O) redirfs(O) dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 snd_ens1371 gameport ipt_REJECT snd_ac97_codec xt_LOG ac97_bus snd_pcm xt_limit xt_tcpudp xt_addrtype snd_seq_midi nf_conntrack_ipv4 nf_defrag_ipv4 snd_rawmidi xt_state snd_seq_midi_event vmw_balloon ip6table_filter psmouse ip6_tables snd_seq microcode nf_conntrack_netbios_ns nf_conntrack_broadcast snd_timer snd_seq_device nf_conntrack_ftp nf_conntrack serio_raw snd iptable_filter ip_tables joydev soundcore snd_page_alloc x_tables shpchp i2c_piix4 parport_pc bnep mac_hid rfcomm coretemp ppdev bluetooth lp parport binfmt_misc aacraid hid_generic usbhid hid floppy e1000 mptspi mptscsih mptbase vmwgfx ttm drm
Jun 15 00:44:06 ns kernel: [ 402.301886] CPU 3
Jun 15 00:44:06 ns kernel: [ 402.301894] Pid: 8874, comm: cavscan Tainted: G O 3.9.0-test #1 VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform
Jun 15 00:44:06 ns kernel: [ 402.301895] RIP: 0010:[] [] dput+0x1bf/0x1d0
Jun 15 00:44:06 ns kernel: [ 402.301901] RSP: 0018:ffff8800a69dbe68 EFLAGS: 00010246
Jun 15 00:44:06 ns kernel: [ 402.301902] RAX: 0000000000000000 RBX: ffff88004e24b080 RCX: 0000000000000011
Jun 15 00:44:06 ns kernel: [ 402.301904] RDX: 0000000000000011 RSI: ffffffff8118fcc0 RDI: ffff88004e24b0dc
Jun 15 00:44:06 ns kernel: [ 402.301905] RBP: ffff8800a69dbe88 R08: 0000000000016f80 R09: ffff88013ae76f80
Jun 15 00:44:06 ns kernel: [ 402.301906] R10: ffffea0001cf6940 R11: ffffffff8114b581 R12: ffff88004e24b0dc
Jun 15 00:44:06 ns kernel: [ 402.301910] R13: ffff88004e24b080 R14: ffff88004e021700 R15: ffff8801351e6020
Jun 15 00:44:06 ns kernel: [ 402.301934] FS: 00007f1786209700(0000) GS:ffff88013ae60000(0000) knlGS:0000000000000000
Jun 15 00:44:06 ns kernel: [ 402.301936] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Jun 15 00:44:06 ns kernel: [ 402.301937] CR2: 00007f17ae738000 CR3: 000000012e075000 CR4: 00000000000407e0
Jun 15 00:44:06 ns kernel: [ 402.301959] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Jun 15 00:44:06 ns kernel: [ 402.301975] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Jun 15 00:44:06 ns kernel: [ 402.301977] Process cavscan (pid: 8874, threadinfo ffff8800a69da000, task ffff8800b1f95c40)
Jun 15 00:44:06 ns kernel: [ 402.301978] Stack:
Jun 15 00:44:06 ns kernel: [ 402.301979] ffff880070915100 0000000000000010 ffff88004e24b080 ffff88004e021700
Jun 15 00:44:06 ns kernel: [ 402.301982] ffff8800a69dbed8 ffffffff8118fe6e ffff88004e021700 ffff880070915110
Jun 15 00:44:06 ns kernel: [ 402.301984] 0000000000000000 ffff880070915100 ffff8800b1f96228 ffff8800b1f95c40
Jun 15 00:44:06 ns kernel: [ 402.301986] Call Trace:
Jun 15 00:44:06 ns kernel: [ 402.301991] [] __fput+0x16e/0x240
Jun 15 00:44:06 ns kernel: [ 402.301993] [] ____fput+0xe/0x10
Jun 15 00:44:06 ns kernel: [ 402.301996] [] task_work_run+0xbc/0xe0
Jun 15 00:44:06 ns kernel: [ 402.302006] [] do_notify_resume+0x71/0xb0
Jun 15 00:44:06 ns kernel: [ 402.302015] [] int_signal+0x12/0x17
Jun 15 00:44:06 ns kernel: [ 402.302016] Code: 00 00 48 8d 90 d0 00 00 00 48 89 93 88 00 00 00 4c 89 a8 d0 00 00 00 48 8b 43 68 83 80 e0 00 00 00 01 e8 65 ff e9 ff 66 90 eb 94 <0f> 0b 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 66 66 66 66
Jun 15 00:44:06 ns kernel: [ 402.302040] RIP [] dput+0x1bf/0x1d0
Jun 15 00:44:06 ns kernel: [ 402.302042] RSP
Jun 15 00:44:06 ns kernel: [ 402.302049] —[ end trace 65963fea79ee0d83 ]—