nmap not working on rt-n66u

[frozenflame]

Hi, Merlin. I have nmap from entware on rt-n66u and it worked fine till 33_0 firmware. but on newer (34 and newer) firmwares router reboots with kernel panic right after starting nmap with scanning. on ac66u it works fine even on a latest 38_0

Kernel bug detected[#1]:
Cpu 0
$ 0   : 00000000 7f98e770 00000001 00000000
$ 4   : 810b2bc0 00000000 00024000 00000010
$ 8   : 00000001 0000003c 0000003c 000e0000
$12   : 000029f7 7f98e7bc 0000001c d7470677
$16   : 87b41060 00000001 8595e000 85865000
$20   : 87b41088 00000020 00000100 00000008
$24   : 00000000 86d0be28
$28   : 86d0a000 86d0bc98 86d0be44 801887ec
Hi    : 00000000
Lo    : 51eb851f
epc   : 800771dc kfree+0x78/0xf8     Tainted: P
ra    : 801887ec kfree_skbmem+0x14/0x15c
Status: 1100fc02    KERNEL EXL
Cause : 00000034
PrId  : 00019749
Modules linked in: nf_nat_sip nf_conntrack_sip nf_nat_h323 nf_conntrack_h323 nf_nat_rtsp nf_conntrack_rtsp nf_nat_ftp nf_conntrack_ftp ip6table_filter ip6table_mangle nls_cp437 sr_mod cdrom zaurus rndis_host net1080 cdc_ether asix usbnet usblp ohci_hcd ehci_hcd ufsd(P) vfat fat ext2 ext3 jbd mbcache usb_storage sg sd_mod scsi_wait_scan scsi_mod usbcore jffs2 zlib_inflate zlib_deflate nf_nat_pptp nf_conntrack_pptp nf_nat_proto_gre nf_conntrack_proto_gre wl(P) igs(P) emf(P) bcm57xx et(P) ctf(P)
Process nmap (pid: 1440, threadinfo=86d0a000, task=8738a000)
Stack : c06ee544 00000000 00000000 00000000 87b41060 0000003c 86d0be28 801887ec
        0000001c 00000107 00000008 00000008 87b41060 8026e8b4 87b11136 00000034
        86d0be44 86d0bce8 86d0bcec 00000000 0000003c 00000001 0000003c 0000003c
        000e0000 00000001 86d0bd78 00000020 8588be40 7f98e7b0 7f98e780 86d0be44
        86d0be84 80181aa8 00000000 0855aaf7 00000000 00000003 00000020 00000000
        ...
Call Trace:
[<800771dc>] kfree+0x78/0xf8
[<801887ec>] kfree_skbmem+0x14/0x15c
[<8026e8b4>] packet_recvmsg+0x1b0/0x204
[<80181aa8>] sock_recvmsg+0xb4/0xf4
[<80181c20>] sys_recvmsg+0x138/0x214
[<80010f04>] stack_done+0x20/0x40


Code: 8c820000  38420080  7c4201c0 <00028036> 8c840018  8c900000  8e030000  8e020004  0062102b
Fatal exception: panic in 5 seconds
printk: 40 messages suppressed.
protocol 0000 is buggy, dev eth0
Kernel panic - not syncing: Fatal exception
Rebooting in 3 seconds..<4>printk: 78 messages suppressed.
protocol 0000 is buggy, dev eth0
Please stand by while rebooting the system...

It is possible to fix this?