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io_uring: IORING_OP_F[GS]ETXATTR is fine with REQ_F_FIXED_FILE

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Rejection of IOSQE_FIXED_FILE combined with IORING_OP_[GS]ETXATTR
is fine - these do not take a file descriptor, so such combination
makes no sense.  The checks are misplaced, though - as it is, they
triggers on IORING_OP_F[GS]ETXATTR as well, and those do take
a file reference, no matter the origin.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Jens Axboe 2024-10-07 12:20:20 -06:00 committed by Al Viro
parent e896474fe4
commit dc7e76ba7a
1 changed files with 6 additions and 6 deletions
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12
io_uring/xattr.c
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@ -48,9 +48,6 @@ static int __io_getxattr_prep(struct io_kiocb *req,
const char __user *name;
int ret;
if (unlikely(req->flags & REQ_F_FIXED_FILE))
return -EBADF;
ix->filename = NULL;
ix->ctx.kvalue = NULL;
name = u64_to_user_ptr(READ_ONCE(sqe->addr));
@ -90,6 +87,9 @@ int io_getxattr_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
const char __user *path;
int ret;
if (unlikely(req->flags & REQ_F_FIXED_FILE))
return -EBADF;
ret = __io_getxattr_prep(req, sqe);
if (ret)
return ret;
@ -152,9 +152,6 @@ static int __io_setxattr_prep(struct io_kiocb *req,
const char __user *name;
int ret;
if (unlikely(req->flags & REQ_F_FIXED_FILE))
return -EBADF;
ix->filename = NULL;
name = u64_to_user_ptr(READ_ONCE(sqe->addr));
ix->ctx.cvalue = u64_to_user_ptr(READ_ONCE(sqe->addr2));
@ -183,6 +180,9 @@ int io_setxattr_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
const char __user *path;
int ret;
if (unlikely(req->flags & REQ_F_FIXED_FILE))
return -EBADF;
ret = __io_setxattr_prep(req, sqe);
if (ret)
return ret;