Mandriva Linux Security Advisory - The isdn_ioctl function in isdn_common.c in the Linux kernel prior to 2.6.23 allows local users to cause a denial of service via a crafted ioctl struct in which iocts is not null terminated, which trigger a buffer overflow. The do_corefump function in fs/exec.c in the Linux kernel prior to 2.6.24-rc3 did not change the UID of a core dump file if it exists before a root process creates a core dump in the same location, which could possibly allow local users to obtain sensitive information. The shmem_getpage function in mm/shmem.c in the Linux kernel versions 2.6.11 through 2.6.23 did not properly clear allocated memory in certain rare circumstances related to tmps, which could possibly allow local users to read sensitive kernel data or cause a crash.
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