AuroraMiddleware/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2024-09-19 16:10:01 +00:00
Code Issues Packages Projects Releases Wiki Activity

wordexp: handle overflow in positional parameter number (bug 28011)

Browse Source 
Use strtoul instead of atoi so that overflow can be detected.

(cherry picked from commit 5adda61f62)
This commit is contained in:
Andreas Schwab 2021-06-25 15:02:47 +02:00 committed by Aurelien Jarno
parent 8e88c0d888
commit 4f0a61f753
2 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
posix/wordexp-test.c
View File

@ -183,6 +183,7 @@ struct test_case_struct
{ 0, NULL, "$var", 0, 0, { NULL, }, IFS },
{ 0, NULL, "\"\\n\"", 0, 1, { "\\n", }, IFS },
{ 0, NULL, "", 0, 0, { NULL, }, IFS },
{ 0, NULL, "${1234567890123456789012}", 0, 0, { NULL, }, IFS },
/* Flags not already covered (testit() has special handling for these) */
{ 0, NULL, "one two", WRDE_DOOFFS, 2, { "one", "two", }, IFS },

2
posix/wordexp.c
View File

@ -1399,7 +1399,7 @@ envsubst:
/* Is it a numeric parameter? */
else if (isdigit (env[0]))
{
int n = atoi (env);
unsigned long n = strtoul (env, NULL, 10);
if (n >= __libc_argc)
/* Substitute NULL. */