aniani/vim
0
0
Fork 1
mirror of https://github.com/vim/vim.git synced 2025-11-16 23:24:03 -05:00
Code Activity

patch 9.1.1609: complete: Heap-buffer overflow with complete function

Browse Source 
Problem:  complete: Heap-buffer overflow with complete function
          (zeertzjq)
Solution: Do not let startcol become negative (Girish Palya).

fixes: #17907
closes: #17934

Co-authored-by: zeertzjq <zeertzjq@outlook.com>
Co-authored-by: Hirohito Higashi <h.east.727@gmail.com>
Signed-off-by: Girish Palya <girishji@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
Girish Palya
2025-08-08 15:42:27 +02:00
committed by Christian Brabandt
parent b89ff6c2e1
commit 761ea77670
3 changed files with 34 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
src/insexpand.c
View File

@@ -247,7 +247,6 @@ typedef struct cpt_source_T
#endif
} cpt_source_T;
#define STARTCOL_NONE -9
static cpt_source_T *cpt_sources_array; // Pointer to the array of completion sources
static int cpt_sources_count; // Total number of completion sources specified in the 'cpt' option
static int cpt_sources_index = -1; // Index of the current completion source being expanded
@@ -5368,10 +5367,12 @@ prepare_cpt_compl_funcs(void)
else
startcol = -2;
}
else if (startcol < 0 || startcol > curwin->w_cursor.col)
startcol = curwin->w_cursor.col;
cpt_sources_array[idx].cs_startcol = startcol;
}
else
cpt_sources_array[idx].cs_startcol = STARTCOL_NONE;
cpt_sources_array[idx].cs_startcol = -3;
(void)copy_option_part(&p, IObuff, IOSIZE, ","); // Advance p
idx++;
@@ -7495,6 +7496,8 @@ cpt_compl_refresh(void)
else
startcol = -2;
}
else if (startcol < 0 || startcol > curwin->w_cursor.col)
startcol = curwin->w_cursor.col;
cpt_sources_array[cpt_sources_index].cs_startcol = startcol;
if (ret == OK)
{
@@ -7502,9 +7505,6 @@ cpt_compl_refresh(void)
get_cpt_func_completion_matches(cb);
}
}
else
cpt_sources_array[cpt_sources_index].cs_startcol
= STARTCOL_NONE;
}
(void)copy_option_part(&p, IObuff, IOSIZE, ","); // Advance p