[11303] in Kerberos-V5-bugs
[krbdev.mit.edu #6629] krb5int_derive_key results in cache with
daemon@ATHENA.MIT.EDU (Ezra Peisach via RT)
Fri Jan 8 20:10:24 2010
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From: "Ezra Peisach via RT" <rt-comment@krbdev.MIT.EDU>
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To: "'AdminCc of krbdev.mit.edu Ticket #6629'":;"'AdminCc of krbdev.mit.edu Ticket #6629'":;@MIT.EDU
Date: Fri, 8 Jan 2010 20:10:23 -0500 (EST)
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krb5int_derive_key creates a temporary keyblock to add to the derived cache.
krb5_k_free_key will iterate over the derived keys and for ones with
cache will
lookup the enctype for the key_cleanup handler.
Unfortunatly, there isn't a keyblock init function that does not
allocate the
keyblock - as I suspect this problem will appear in other places.
The valgrind log of this problem is:
==7281== Conditional jump or move depends on uninitialised value(s)
==7281== at 0x40E9AE8: find_enctype (etypes.h:81)
==7281== by 0x40E9C96: krb5_k_free_key (key.c:91)
==7281== by 0x40E9C52: krb5_k_free_key (key.c:86)
==7281== by 0x40EBB00: krb5_c_prf (prf.c:87)
==7281== by 0x40E7B1B: prf_plus (cf2.c:77)
==7281== by 0x40E7CE6: krb5_c_fx_cf2_simple (cf2.c:125)
==7281== by 0x804899C: main (t_cf2.c:70)
==7281==
with memory leaks.
http://src.mit.edu/fisheye/changelog/krb5/?cs=23608
has the fix
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