Some vulnerabilities have been reported in the Linux Kernel, which can be exploited by malicious, local users and malicious people to cause a DoS (Denial of Service).
1) The "sys_perfmon()" function on Itanium (IA64) systems does not correctly handle file descriptor reference counts, which can be exploited to cause a DoS by consuming all available file descriptors.
2) The "clip_mkip()" function in net/atm/clip.c may dereference a previously freed pointer when processing received data, which can be exploited to cause a kernel panic.
Solution: Update to version 2.6.18.
Provided and/or discovered by: 1) Reported by the vendor.
2) ADLab, Venustech info Ltd CHINA.
Original Advisory: http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b8444d00762703e1b6146fce12ce2684885f8bf6
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Subject: Linux Kernel Denial of Service Vulnerabilities
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