diff options
Diffstat (limited to 'main/dev86/dev86-print-overflow.patch')
| -rw-r--r-- | main/dev86/dev86-print-overflow.patch | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/main/dev86/dev86-print-overflow.patch b/main/dev86/dev86-print-overflow.patch new file mode 100644 index 00000000000..c75e18c9bbf --- /dev/null +++ b/main/dev86/dev86-print-overflow.patch @@ -0,0 +1,27 @@ +From: Lubomir Rintel <lkundrak@v3.sk> + +There are off-by-one errors when filling the ar headers, the trailing nul +would overflow the target buffer. + +diff -urp dev86-0.16.17/ld/mkar.c dev86-0.16.17.fixed/ld/mkar.c +--- dev86-0.16.17/ld/mkar.c 2004-06-20 09:23:27.000000000 +0200 ++++ dev86-0.16.17.fixed/ld/mkar.c 2010-03-29 23:34:30.351426404 +0200 +@@ -51,12 +51,12 @@ char buf[128]; + memset(&arbuf, ' ', sizeof(arbuf)); + strcpy(buf, ptr); strcat(buf, "/ "); + strncpy(arbuf.ar_name, buf, sizeof(arbuf.ar_name)); +- +- sprintf(arbuf.ar_date, "%-12ld", (long)st.st_mtime); +- sprintf(arbuf.ar_uid, "%-6d", (int)(st.st_uid%1000000L)); +- sprintf(arbuf.ar_gid, "%-6d", (int)(st.st_gid%1000000L)); +- sprintf(arbuf.ar_mode, "%-8lo", (long)st.st_mode); +- sprintf(arbuf.ar_size, "%-10ld", (long)st.st_size); ++ ++ snprintf(arbuf.ar_date, 12, "%-12ld", (long)st.st_mtime); ++ snprintf(arbuf.ar_uid, 6, "%-6d", (int)(st.st_uid%1000000L)); ++ snprintf(arbuf.ar_gid, 6, "%-6d", (int)(st.st_gid%1000000L)); ++ snprintf(arbuf.ar_mode, 8, "%-8lo", (long)st.st_mode); ++ snprintf(arbuf.ar_size, 10, "%-10ld", (long)st.st_size); + memcpy(arbuf.ar_fmag, ARFMAG, sizeof(arbuf.ar_fmag)); + + if( fwrite(&arbuf, 1, sizeof(arbuf), fd) != sizeof(arbuf) ) |