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authorChristian Brabandt <cb@256bit.org>2023-09-03 21:43:46 +0200
committerChristian Brabandt <cb@256bit.org>2023-09-03 21:43:46 +0200
commit6e60cf444a8839ca1694319bf9a82e7b097e5c4d (patch)
tree0ae96b7f0834c9e82cd174dda7683eb209dd46e3 /src/buffer.c
parentee9166eb3b41846661a39b662dc7ebe8b5e15139 (diff)
patch 9.0.1859: heap-use-after-free in bt_normal()v9.0.1859
Problem: heap-use-after-free in bt_normal() Solution: check that buffer is still valid Signed-off-by: Christian Brabandt <cb@256bit.org>
Diffstat (limited to 'src/buffer.c')
-rw-r--r--src/buffer.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/buffer.c b/src/buffer.c
index 14eac92b97..93f9245f27 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -5777,7 +5777,7 @@ bt_normal(buf_T *buf)
bt_quickfix(buf_T *buf UNUSED)
{
#ifdef FEAT_QUICKFIX
- return buf != NULL && buf->b_p_bt[0] == 'q';
+ return buf != NULL && buf_valid(buf) && buf->b_p_bt[0] == 'q';
#else
return FALSE;
#endif