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authorJohn Keeping <john@keeping.me.uk>2017-02-19 12:27:48 +0000
committerJason A. Donenfeld <Jason@zx2c4.com>2017-08-10 16:05:07 +0200
commit1b4ef6783a71962f8b5da3a23f2830f0f0f55ea0 (patch)
tree37faf12c4a5d56ec24a886bb82956d206a6f3a57 /README
parent6d3c8bc37f6124c2193d66587079975d381aa435 (diff)
ui-shared: don't print path crumbs without a repo
cgit_print_path_crumbs() can call repolink() which assumes that ctx.repo
is non-null.  Currently we don't have any commands that set want_vpath
without also setting want_repo so it shouldn't be possible to fail this
test, but the check in cgit.c is in the wrong order so it is possible to
specify a query string like "?p=log&path=foo/bar" to end up here without
a valid repository.

This was found by American fuzzy lop [0].

[0] http://lcamtuf.coredump.cx/afl/

Signed-off-by: John Keeping <john@keeping.me.uk>
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