Messages in this thread | | | Date | Wed, 3 Feb 1999 11:33:21 -0300 | From | Nicolas Lichtmaier <> | Subject | Oops.. (infinite recursion in register_serial) |
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Oops: 0002 CPU: 0 EIP: 0010:[serial:register_serial+-70468/292] EFLAGS: 00010202 eax: 00000038 ebx: c0bededc ecx: 0000000e edx: 00000038 esi: c11a1f60 edi: 00000000 ebp: 00000038 esp: c0bede28 ds: 0018 es: 0018 ss: 0018 Process find (pid: 1959, process nr: 53, stackpage=c0bed000) Stack: c480cbdd 00000000 c11a1f60 00000038 c0bededc c2f0f750 c480d9be c0bededc c11a1f60 00000038 c0bededc c2f0f750 00000000 c0bedf1c 00000015 00000003 c480cbc4 000000a8 c480cffd c11a1f60 c4812fc0 00000004 00000200 c2f0f750 Call Trace: [serial:register_serial+-67535/292] [serial:register_serial+-63982/292] [serial:register_serial+-67560/292] [serial:register_serial+-66479/292] [serial:register_serial+-41964/292] [serial:register_serial+-63315/292] [serial:register_serial+-54601/292] [serial:register_serial+-41964/292] [serial:register_serial+-67560/292] [serial:register_serial+-54480/292] [serial:register_serial+-72335/292] [d_alloc+24/336] [real_lookup+81/124] [lookup_dentry+266/440] [__namei+41/92] [sys_newlstat+19/100] [system_call+52/56] Code: f3 a5 a8 02 74 02 66 a5 a8 01 74 01 a4 5e 5f c3 57 56 8b 7c
popotito:~# lsmod Module Size Used by ntfs 33872 1 (autoclean) ne2k-pci 3560 1 8390 5944 0 [ne2k-pci] popotito:~# cat /proc/version Linux version 2.2.1-ac1 (root@popotito) (gcc version 2.7.2.3) #1 Mon Feb 1 10:55:43 ART 1999 popotito:~# cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 3 model name : Pentium II (Klamath) stepping : 4 cpu MHz : 274.098834 cache size : 512 KB fdiv_bug : no hlt_bug : no sep_bug : no f00f_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov mmx bogomips : 273.61
This is the script that causes the oops: --------------------------------------------------------- #!/bin/sh # Security checks script - run daily out of the system crontab
set -e
PATH=/sbin:/bin:/usr/sbin:/usr/bin
LOG=/var/log TMP=/var/log/setuid.new.tmp
umask 077 cd /
. /etc/checksecurity.conf
if [ "$CHECKSECURITY_DISABLE" = "TRUE" ] ; then exit fi
# # Check for NFS/AFS mounts that are not nosuid/nodev # # # Check for NFS/AFS mounts that are not nosuid/nodev # if [ ! "$CHECKSECURITY_NONFSAFS" = "TRUE" ] ; then # temporarily disable error exit, as grep may give errors if no nfs/afs # are mounted. set +e nfssys=`mount | grep -E 'nfs|afs' | grep -vE '\(.*(nosuid|noexec).*nodev.*\)'` nfssyscnt=`echo $nfssys |grep "[a-z]"| wc -l` set -e if [ $nfssyscnt -gt 0 ] ; then echo "The following NFS or AFS filesystems are mounted insecurely:" echo "" echo $nfssys echo "" echo "If this is intentional and you have supreme confidence in the" echo "security of the server for these file systems, you may disable" echo "this message by editing the value of CHECKSECURITY_NONFSAFS in" echo "the file /etc/checksecurity.conf." fi fi
if [ "$CHECKSECURITY_NOFINDERRORS" = "TRUE" ] ; then exec 9>&2 exec 2>/dev/null fi
# # THIS LINE CAUSES THE OOPS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! # find `mount | grep -vE "$CHECKSECURITY_FILTER" | cut -d ' ' -f 3` \ -xdev \( -type f -perm +06000 -o -type b -o -type c \) \ -printf "%8i %5m %3n %-10u %-10g %9s %t %h/%f\n" \ | sort >$TMP
if [ "$CHECKSECURITY_NOFINDERRORS" = "TRUE" ] ; then exec 2>&9 fi
cd $LOG
test -f setuid.today || touch setuid.today
if cmp -s setuid.today $TMP >/dev/null then : else echo "`hostname` changes to setuid programs and devices:" diff setuid.today $TMP || [ $? = 1 ] mv setuid.today setuid.yesterday mv $TMP setuid.today fi rm -f $TMP
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