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| author | David S. Miller <davem@davemloft.net> | 2008-03-18 00:37:55 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-03-18 00:37:55 -0700 |
| commit | 577f99c1d08cf9cbdafd4e858dd13ff04d855090 (patch) | |
| tree | 0f726bbda9b18d311d4c95198bbd96cb7ac01db0 /fs/exec.c | |
| parent | 26c0f03f6b77c513cb7bc37b73a06819bdbb791b (diff) | |
| parent | 2f633928cbba8a5858bb39b11e7219a41b0fbef5 (diff) | |
| download | linux-577f99c1d08cf9cbdafd4e858dd13ff04d855090.tar.gz linux-577f99c1d08cf9cbdafd4e858dd13ff04d855090.tar.bz2 linux-577f99c1d08cf9cbdafd4e858dd13ff04d855090.zip | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
drivers/net/wireless/rt2x00/rt2x00dev.c
net/8021q/vlan_dev.c
Diffstat (limited to 'fs/exec.c')
| -rw-r--r-- | fs/exec.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/fs/exec.c b/fs/exec.c index a44b142fb460..54a0a557b678 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -173,8 +173,15 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos, return NULL; if (write) { - struct rlimit *rlim = current->signal->rlim; unsigned long size = bprm->vma->vm_end - bprm->vma->vm_start; + struct rlimit *rlim; + + /* + * We've historically supported up to 32 pages (ARG_MAX) + * of argument strings even with small stacks + */ + if (size <= ARG_MAX) + return page; /* * Limit to 1/4-th the stack size for the argv+env strings. @@ -183,6 +190,7 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos, * - the program will have a reasonable amount of stack left * to work from. */ + rlim = current->signal->rlim; if (size > rlim[RLIMIT_STACK].rlim_cur / 4) { put_page(page); return NULL; |