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Avoid crashes due to base-less indirect buffer

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* src/buffer.c (Fkill_buffer): Prevent killing a buffer if its
indirect buffer refuses to be killed.  (Bug#69529)
This commit is contained in:
Eli Zaretskii 2024-03-04 14:59:27 +02:00
parent 912e37b811
commit 0df3dc3d46
1 changed files with 10 additions and 2 deletions
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12
src/buffer.c
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@ -1971,8 +1971,16 @@ cleaning up all windows currently displaying the buffer to be killed. */)
Lisp_Object tail, other;
FOR_EACH_LIVE_BUFFER (tail, other)
if (XBUFFER (other)->base_buffer == b)
Fkill_buffer (other);
{
struct buffer *obuf = XBUFFER (other);
if (obuf->base_buffer == b)
{
Fkill_buffer (other);
if (BUFFER_LIVE_P (obuf))
error ("Unable to kill buffer whose indirect buffer `%s' cannot be killed",
SDATA (BVAR (obuf, name)));
}
}
/* Exit if we now have killed the base buffer (Bug#11665). */
if (!BUFFER_LIVE_P (b))