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eventpoll: use-after-possible-free in epoll_create1() 

As soon as we'd installed the file into descriptor table, it can
get closed by another thread.  Freeing ep in process...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
hifive-unleashed-5.1
Al Viro 2012-08-17 22:42:36 -04:00
parent 31605debdf
commit 98022748f6
1 changed files with 1 additions and 1 deletions
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2
fs/eventpoll.c
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@ -1654,8 +1654,8 @@ SYSCALL_DEFINE1(epoll_create1, int, flags)
error = PTR_ERR(file);
goto out_free_fd;
}
fd_install(fd, file);
ep->file = file;
fd_install(fd, file);
return fd;
out_free_fd: