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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-07-06 02:05:24 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-07-06 02:05:24 +0300 |
| commit | 7114f51fcb979f167ab5f625ac74059dcb1afc28 (patch) | |
| tree | cb15e7498eccb41a38bd2ff20e873ffb0bfb7c1d /security/selinux | |
| parent | ea3b25e1320df4e575c323b6ab22a5fc79976fbe (diff) | |
| parent | e4448ed87ccdbacb74871736f63220642242b32f (diff) | |
| download | linux-7114f51fcb979f167ab5f625ac74059dcb1afc28.tar.xz | |
Merge branch 'work.memdup_user' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull memdup_user() conversions from Al Viro:
"A fairly self-contained series - hunting down open-coded memdup_user()
and memdup_user_nul() instances"
* 'work.memdup_user' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
bpf: don't open-code memdup_user()
kimage_file_prepare_segments(): don't open-code memdup_user()
ethtool: don't open-code memdup_user()
do_ip_setsockopt(): don't open-code memdup_user()
do_ipv6_setsockopt(): don't open-code memdup_user()
irda: don't open-code memdup_user()
xfrm_user_policy(): don't open-code memdup_user()
ima_write_policy(): don't open-code memdup_user_nul()
sel_write_validatetrans(): don't open-code memdup_user_nul()
Diffstat (limited to 'security/selinux')
| -rw-r--r-- | security/selinux/selinuxfs.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c index 9010a3632d6f..00eed842c491 100644 --- a/security/selinux/selinuxfs.c +++ b/security/selinux/selinuxfs.c @@ -649,14 +649,12 @@ static ssize_t sel_write_validatetrans(struct file *file, if (*ppos != 0) goto out; - rc = -ENOMEM; - req = kzalloc(count + 1, GFP_KERNEL); - if (!req) - goto out; - - rc = -EFAULT; - if (copy_from_user(req, buf, count)) + req = memdup_user_nul(buf, count); + if (IS_ERR(req)) { + rc = PTR_ERR(req); + req = NULL; goto out; + } rc = -ENOMEM; oldcon = kzalloc(count + 1, GFP_KERNEL); |