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Re: [PATCH] 9pfs: local: Do not follow symlink in _nofollow
From: |
Christian Schoenebeck |
Subject: |
Re: [PATCH] 9pfs: local: Do not follow symlink in _nofollow |
Date: |
Wed, 27 Apr 2022 10:46:31 +0200 |
On Mittwoch, 27. April 2022 04:45:45 CEST Akihiko Odaki wrote:
> Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
> ---
> hw/9pfs/9p-local.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/hw/9pfs/9p-local.c b/hw/9pfs/9p-local.c
> index d42ce6d8b82..def8afdb4d6 100644
> --- a/hw/9pfs/9p-local.c
> +++ b/hw/9pfs/9p-local.c
> @@ -365,7 +365,7 @@ static int fchmodat_nofollow(int dirfd, const char
> *name, mode_t mode) if (fd == -1) {
> /* In case the file is writable-only and isn't a directory. */
> if (errno == EACCES) {
> - fd = openat_file(dirfd, name, O_WRONLY, 0);
> + fd = openat_file(dirfd, name, O_WRONLY | O_NOFOLLOW, 0);
O_NOFOLLOW flag is always added inside openat_file() implementation:
https://github.com/qemu/qemu/blob/master/hw/9pfs/9p-util.h#L60
So this change is not necessary AFAICS.
> }
> if (fd == -1 && errno == EISDIR) {
> errno = EACCES;