The following commit has been merged in the master branch:
commit 37fe6b4a5ccf58ed553fe24ba19535b6d1bf92ba
Author: Raphaël Hertzog <[email protected]>
Date: Fri Jul 23 08:06:36 2010 +0200
update-alternatives: avoid segfault when the only slave is disappearing
When an alternative with a single slave is removed, and when the
remaining alternatives have no slaves, u-a was segfaulting while trying
to remove the slave alternative from the structure.
Reported-by: Jonathan Nieder <[email protected]>
Reported-by: Cyril Brulebois <[email protected]>
diff --git a/utils/update-alternatives.c b/utils/update-alternatives.c
index 972d173..0f6487a 100644
--- a/utils/update-alternatives.c
+++ b/utils/update-alternatives.c
@@ -1236,6 +1236,8 @@ alternative_save(struct alternative *a, const char *file)
sl_rm = sl;
sl = sl_prev ? sl_prev : a->slaves;
slave_link_free(sl_rm);
+ if (!sl)
+ break; /* no other slave left */
}
}
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