diff options
Diffstat (limited to 'poky/meta/recipes-support/vim/files/0002-patch-8.2.3428-using-freed-memory-when-replacing.patch')
| -rw-r--r-- | poky/meta/recipes-support/vim/files/0002-patch-8.2.3428-using-freed-memory-when-replacing.patch | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/poky/meta/recipes-support/vim/files/0002-patch-8.2.3428-using-freed-memory-when-replacing.patch b/poky/meta/recipes-support/vim/files/0002-patch-8.2.3428-using-freed-memory-when-replacing.patch new file mode 100644 index 0000000000..ecfae0301e --- /dev/null +++ b/poky/meta/recipes-support/vim/files/0002-patch-8.2.3428-using-freed-memory-when-replacing.patch @@ -0,0 +1,83 @@ +CVE: CVE-2021-3796 +Upstream-Status: Backport +Signed-off-by: Ross Burton <ross.burton@arm.com> + +From 1160e5f74b229336502fc376416f21108d36cfc2 Mon Sep 17 00:00:00 2001 +From: Bram Moolenaar <Bram@vim.org> +Date: Sat, 11 Sep 2021 21:14:20 +0200 +Subject: [PATCH] patch 8.2.3428: using freed memory when replacing + +Problem: Using freed memory when replacing. (Dhiraj Mishra) +Solution: Get the line pointer after calling ins_copychar(). +--- + src/normal.c | 10 +++++++--- + src/testdir/test_edit.vim | 14 ++++++++++++++ + src/version.c | 2 ++ + 3 files changed, 23 insertions(+), 3 deletions(-) + +diff --git a/src/normal.c b/src/normal.c +index c4963e621..d6333b948 100644 +--- a/src/normal.c ++++ b/src/normal.c +@@ -5009,19 +5009,23 @@ nv_replace(cmdarg_T *cap) + { + /* + * Get ptr again, because u_save and/or showmatch() will have +- * released the line. At the same time we let know that the +- * line will be changed. ++ * released the line. This may also happen in ins_copychar(). ++ * At the same time we let know that the line will be changed. + */ +- ptr = ml_get_buf(curbuf, curwin->w_cursor.lnum, TRUE); + if (cap->nchar == Ctrl_E || cap->nchar == Ctrl_Y) + { + int c = ins_copychar(curwin->w_cursor.lnum + + (cap->nchar == Ctrl_Y ? -1 : 1)); ++ ++ ptr = ml_get_buf(curbuf, curwin->w_cursor.lnum, TRUE); + if (c != NUL) + ptr[curwin->w_cursor.col] = c; + } + else ++ { ++ ptr = ml_get_buf(curbuf, curwin->w_cursor.lnum, TRUE); + ptr[curwin->w_cursor.col] = cap->nchar; ++ } + if (p_sm && msg_silent == 0) + showmatch(cap->nchar); + ++curwin->w_cursor.col; +diff --git a/src/testdir/test_edit.vim b/src/testdir/test_edit.vim +index 4e29e7fe1..f94e6c181 100644 +--- a/src/testdir/test_edit.vim ++++ b/src/testdir/test_edit.vim +@@ -1519,3 +1519,17 @@ func Test_edit_noesckeys() + bwipe! + set esckeys + endfunc ++ ++" Test for getting the character of the line below after "p" ++func Test_edit_put_CTRL_E() ++ set encoding=latin1 ++ new ++ let @" = '' ++ sil! norm orggRx ++ sil! norm pr ++ call assert_equal(['r', 'r'], getline(1, 2)) ++ bwipe! ++ set encoding=utf-8 ++endfunc ++ ++" vim: shiftwidth=2 sts=2 expandtab +diff --git a/src/version.c b/src/version.c +index 85bdfc601..1046993d6 100644 +--- a/src/version.c ++++ b/src/version.c +@@ -742,6 +742,8 @@ static char *(features[]) = + + static int included_patches[] = + { /* Add new patch number below this line */ ++/**/ ++ 3428, + /**/ + 3409, + /**/ |