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From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.3) Gecko/20010803 Description of problem: When you run grep with the option '-C', with an invalid modifier (ie. some non-numeric value), it segfaults. Version-Release number of selected component (if applicable): 2.5e-4 How reproducible: Always Steps to Reproduce: Run "grep -C 'foo' /etc/passwd". Actual Results: Segmentation fault: Starting program: /bin/grep -riC 'f[t-v]ck' /usr/src/linux/. grep: Program received signal SIGSEGV, Segmentation fault. 0x40081c3c in _IO_vfprintf (s=0xbfffcd20, format=0x805ce40 "%s: %s: %s\n", ap=0xbffff8d8) at ../sysdeps/i386/i486/bits/string.h:530 530 ../sysdeps/i386/i486/bits/string.h: No such file or directory. in ../sysdeps/i386/i486/bits/string.h (gdb) where #0 0x40081c3c in _IO_vfprintf (s=0xbfffcd20, format=0x805ce40 "%s: %s: %s\n", ap=0xbffff8d8) at ../sysdeps/i386/i486/bits/string.h:530 #1 0x40084ff4 in buffered_vfprintf (s=0x4015d180, format=0x805ce40 "%s: %s: %s\n", args=0x0) at vfprintf.c:2087 #2 0x4008001b in _IO_vfprintf (s=0x4015d180, format=0x805ce40 "%s: %s: %s\n", ap=0xbffff8cc) at vfprintf.c:1272 #3 0x08054942 in error () #4 0x0804991d in strcpy () #5 0x0804b2e3 in strcpy () #6 0x400467c7 in __libc_start_main (main=0x804b180 <strcpy+6696>, argc=4, ubp_av=0xbffff9b4, init=0x8049260, fini=0x805c8d0 <__umoddi3+560>, rtld_fini=0x4000db74 <_dl_fini>, stack_end=0xbffff9ac) at ../sysdeps/generic/libc-start.c:129 Expected Results: There should have been an error message indicating invalid usage of the -C option. Additional info:
That's one of the reason why we've gone back to 2.4. (along with the fact that we thought 2.5-final would be released earlier when we put the beta in the tree).