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Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

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Pull vfs fix from Al Viro:
 "Fixes an obvious bug (memory leak introduced in 5.8)"

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  pipe: Fix memory leaks in create_pipe_files()
This commit is contained in:
Linus Torvalds
2020-10-11 11:11:35 -07:00
parent c120ec12e2 8a018eb55e
commit 5b697f86f9
2 changed files with 11 additions and 6 deletions
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11
fs/pipe.c
View File

@@ -894,19 +894,18 @@ int create_pipe_files(struct file **res, int flags)
{
struct inode *inode = get_pipe_inode();
struct file *f;
int error;
if (!inode)
return -ENFILE;
if (flags & O_NOTIFICATION_PIPE) {
#ifdef CONFIG_WATCH_QUEUE
if (watch_queue_init(inode->i_pipe) < 0) {
error = watch_queue_init(inode->i_pipe);
if (error) {
free_pipe_info(inode->i_pipe);
iput(inode);
return -ENOMEM;
return error;
}
#else
return -ENOPKG;
#endif
}
f = alloc_file_pseudo(inode, pipe_mnt, "",

6
include/linux/watch_queue.h
View File

@@ -122,6 +122,12 @@ static inline void remove_watch_list(struct watch_list *wlist, u64 id)
*/
#define watch_sizeof(STRUCT) (sizeof(STRUCT) << WATCH_INFO_LENGTH__SHIFT)
#else
static inline int watch_queue_init(struct pipe_inode_info *pipe)
{
return -ENOPKG;
}
#endif
#endif /* _LINUX_WATCH_QUEUE_H */