diff options
author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-10-24 00:01:43 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-10-24 00:01:43 -0300 |
commit | 037d32aa8f748e39844d2a5b607fb063b4583843 (patch) | |
tree | b5fe973d42017b5d8888103b05be7a503fe95f0f /fs/attr.c | |
parent | 670027c507e99521d416994a18a498def9ef2ea3 (diff) |
Linux-libre 4.8.4-gnupck-4.8.4-gnu
Diffstat (limited to 'fs/attr.c')
-rw-r--r-- | fs/attr.c | 15 |
1 files changed, 15 insertions, 0 deletions
@@ -202,6 +202,21 @@ int notify_change(struct dentry * dentry, struct iattr * attr, struct inode **de return -EPERM; } + /* + * If utimes(2) and friends are called with times == NULL (or both + * times are UTIME_NOW), then we need to check for write permission + */ + if (ia_valid & ATTR_TOUCH) { + if (IS_IMMUTABLE(inode)) + return -EPERM; + + if (!inode_owner_or_capable(inode)) { + error = inode_permission(inode, MAY_WRITE); + if (error) + return error; + } + } + if ((ia_valid & ATTR_MODE)) { umode_t amode = attr->ia_mode; /* Flag setting protected by i_mutex */ |