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authorIngo Molnar <mingo@kernel.org>2019-05-13 21:30:15 +0300
committerIngo Molnar <mingo@kernel.org>2019-05-13 21:30:15 +0300
commit82045dd85566d87128dcc66277cf1177d9930a4a (patch)
tree22fea6311a4866293005a1a44f34310e4007a3c9 /fs/inode.c
parente0478542cfd4d993e38d5f92a3f3ecd238805e96 (diff)
parentffa6f55eb6188ee73339cab710fabf30d13110a7 (diff)
downloadlinux-82045dd85566d87128dcc66277cf1177d9930a4a.tar.xz
Merge branch 'linus' into core/urgent, to merge in dependent changes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'fs/inode.c')
-rw-r--r--fs/inode.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/inode.c b/fs/inode.c
index e9d97add2b36..9a453f3637f8 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -1817,8 +1817,13 @@ int file_remove_privs(struct file *file)
int kill;
int error = 0;
- /* Fast path for nothing security related */
- if (IS_NOSEC(inode))
+ /*
+ * Fast path for nothing security related.
+ * As well for non-regular files, e.g. blkdev inodes.
+ * For example, blkdev_write_iter() might get here
+ * trying to remove privs which it is not allowed to.
+ */
+ if (IS_NOSEC(inode) || !S_ISREG(inode->i_mode))
return 0;
kill = dentry_needs_remove_privs(dentry);