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[Bug libc/12077] strncmp over-reads its buffer, may cause SIGSEGV
- From: "ppluzhnikov at google dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sources dot redhat dot com
- Date: 1 Oct 2010 17:14:11 -0000
- Subject: [Bug libc/12077] strncmp over-reads its buffer, may cause SIGSEGV
- References: <20101001120105.12077.ppluzhnikov@google.com>
- Reply-to: sourceware-bugzilla at sourceware dot org
------- Additional Comments From ppluzhnikov at google dot com 2010-10-01 17:14 -------
On SSE4_2 capable machine:
model name : Intel(R) Xeon(R) CPU X5550 @ 2.67GHz
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm
constant_tsc arch_perfmon pebs bts rep_good pni monitor ds_cpl vmx est tm2 ssse3
cx16 xtpr dca sse4_1 sse4_2 popcnt lahf_lm ida
the test does not crash for any combination of parameters, so __strncmp_sse42
does not have the bug.
--
http://sourceware.org/bugzilla/show_bug.cgi?id=12077
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