diff options
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/unix/sysv/linux/sysconf.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/sysconf.c b/sysdeps/unix/sysv/linux/sysconf.c index 366fcef01e..41319b19ac 100644 --- a/sysdeps/unix/sysv/linux/sysconf.c +++ b/sysdeps/unix/sysv/linux/sysconf.c @@ -33,6 +33,9 @@ actual value varies based on the stack size. */ #define legacy_ARG_MAX 131072 +/* Newer kernels (4.13) limit the maximum command line arguments lengths to + 6MiB. */ +#define maximum_ARG_MAX 6291456 static long int posix_sysconf (int name); @@ -55,7 +58,10 @@ __sysconf (int name) struct rlimit rlimit; /* Use getrlimit to get the stack limit. */ if (__getrlimit (RLIMIT_STACK, &rlimit) == 0) - return MAX (legacy_ARG_MAX, rlimit.rlim_cur / 4); + { + const long int limit = MAX (legacy_ARG_MAX, rlimit.rlim_cur / 4); + return MIN (limit, maximum_ARG_MAX); + } return legacy_ARG_MAX; } |