crtxcr/cgitsb
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Kods Problēmas Izmaiņu pieprasījumi Laidieni Vikivietne Aktivitāte

Avoid null pointer dereference in cgit_print_diff().

Pārlūkot izejas kodu 
When calling cgit_print_diff() with a bad new_rev and a NULL old_rev,
checking for new_rev's parent commit will result in a null pointer
dereference. Returning on an invalid commit before dereferencing fixes
this. Spotted with clang-analyzer.

Signed-off-by: Lukas Fleischer <cgit@cryptocrack.de>
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
Šī revīzija ir iekļauta:
Lukas Fleischer 2011-04-05 10:38:53 +02:00 revīziju iesūtīja Lars Hjemli
vecāks a0bf375a1a
revīzija 9afc883297
1 mainīti faili ar 6 papildinājumiem un 2 dzēšanām
Rādīt statistiku Lejupielādēt ielāpa failu Lejupielādēt izmaiņu failu Izvērst visus failus Savērst visus failus

8
ui-diff.c
Parādīt failu

@ -345,8 +345,10 @@ void cgit_print_diff(const char *new_rev, const char *old_rev, const char *prefi
return;
}
commit = lookup_commit_reference(new_rev_sha1);
if (!commit || parse_commit(commit))
if (!commit || parse_commit(commit)) {
cgit_print_error(fmt("Bad commit: %s", sha1_to_hex(new_rev_sha1)));
return;
}
if (old_rev)
get_sha1(old_rev, old_rev_sha1);
@ -362,8 +364,10 @@ void cgit_print_diff(const char *new_rev, const char *old_rev, const char *prefi
return;
}
commit2 = lookup_commit_reference(old_rev_sha1);
if (!commit2 || parse_commit(commit2))
if (!commit2 || parse_commit(commit2)) {
cgit_print_error(fmt("Bad commit: %s", sha1_to_hex(old_rev_sha1)));
return;
}
}
if ((ctx.qry.ssdiff && !ctx.cfg.ssdiff) || (!ctx.qry.ssdiff && ctx.cfg.ssdiff))