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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-24 19:25:39 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-24 19:25:39 +0300 |
| commit | 4def1963608ed2b61aca5b52fdedb4ca2798820c (patch) | |
| tree | 83b36e8ff3c5eabe0d235f863adcf54f838f838a /fs/xattr.c | |
| parent | 5e8704ac1cfa9fceef94fcc457e18613b1589b34 (diff) | |
| parent | 82c9a927bc5df6e06b72d206d24a9d10cced4eb5 (diff) | |
| download | linux-4def1963608ed2b61aca5b52fdedb4ca2798820c.tar.xz | |
Merge branch 'userns-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull namespace fixes from Eric Biederman:
"This is a set of four fairly obvious bug fixes:
- a switch from d_find_alias to d_find_any_alias because the xattr
code perversely takes a dentry
- two mutex vs copy_to_user fixes from Jann Horn
- a fix to use a sanitized size not the size userspace passed in from
Christian Brauner"
* 'userns-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
getxattr: use correct xattr length
sys: don't hold uts_sem while accessing userspace memory
userns: move user access out of the mutex
cap_inode_getsecurity: use d_find_any_alias() instead of d_find_alias()
Diffstat (limited to 'fs/xattr.c')
| -rw-r--r-- | fs/xattr.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/xattr.c b/fs/xattr.c index 3a24027c062d..daa732550088 100644 --- a/fs/xattr.c +++ b/fs/xattr.c @@ -538,7 +538,7 @@ getxattr(struct dentry *d, const char __user *name, void __user *value, if (error > 0) { if ((strcmp(kname, XATTR_NAME_POSIX_ACL_ACCESS) == 0) || (strcmp(kname, XATTR_NAME_POSIX_ACL_DEFAULT) == 0)) - posix_acl_fix_xattr_to_user(kvalue, size); + posix_acl_fix_xattr_to_user(kvalue, error); if (size && copy_to_user(value, kvalue, error)) error = -EFAULT; } else if (error == -ERANGE && size >= XATTR_SIZE_MAX) { |