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| author | Charles Mirabile <cmirabil@redhat.com> | 2023-11-20 13:55:45 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-12-03 09:32:11 +0300 |
| commit | b964a0a3910bbc133efae8840759f4ba17e1c222 (patch) | |
| tree | ebce317149fe5d98e22244570d750e4f90ab8977 | |
| parent | 12f4971589007d34d6d6ffe571dcd2cfc5c8812b (diff) | |
| download | linux-b964a0a3910bbc133efae8840759f4ba17e1c222.tar.xz | |
io_uring/fs: consider link->flags when getting path for LINKAT
commit 8479063f1fbee201a8739130e816cc331b675838 upstream.
In order for `AT_EMPTY_PATH` to work as expected, the fact
that the user wants that behavior needs to make it to `getname_flags`
or it will return ENOENT.
Fixes: cf30da90bc3a ("io_uring: add support for IORING_OP_LINKAT")
Cc: <stable@vger.kernel.org>
Link: https://github.com/axboe/liburing/issues/995
Signed-off-by: Charles Mirabile <cmirabil@redhat.com>
Link: https://lore.kernel.org/r/20231120105545.1209530-1-cmirabil@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | io_uring/fs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/io_uring/fs.c b/io_uring/fs.c index 27676e015004..abf4295db0ca 100644 --- a/io_uring/fs.c +++ b/io_uring/fs.c @@ -254,7 +254,7 @@ int io_linkat_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) newf = u64_to_user_ptr(READ_ONCE(sqe->addr2)); lnk->flags = READ_ONCE(sqe->hardlink_flags); - lnk->oldpath = getname(oldf); + lnk->oldpath = getname_uflags(oldf, lnk->flags); if (IS_ERR(lnk->oldpath)) return PTR_ERR(lnk->oldpath); |