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io_[gs]etxattr_prep(): just use getname()

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getname_flags(pathname, LOOKUP_FOLLOW) is obviously bogus - following
trailing symlinks has no impact on how to copy the pathname from userland...

Reviewed-by: Christian Brauner <brauner@kernel.org>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2024-09-20 00:28:00 -04:00
parent dc7e76ba7a
commit b8cdd2530c
1 changed files with 2 additions and 2 deletions
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4
io_uring/xattr.c
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@ -96,7 +96,7 @@ int io_getxattr_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
path = u64_to_user_ptr(READ_ONCE(sqe->addr3)); path = u64_to_user_ptr(READ_ONCE(sqe->addr3));
ix->filename = getname_flags(path, LOOKUP_FOLLOW); ix->filename = getname(path);
if (IS_ERR(ix->filename)) { if (IS_ERR(ix->filename)) {
ret = PTR_ERR(ix->filename); ret = PTR_ERR(ix->filename);
ix->filename = NULL; ix->filename = NULL;
@ -189,7 +189,7 @@ int io_setxattr_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
path = u64_to_user_ptr(READ_ONCE(sqe->addr3)); path = u64_to_user_ptr(READ_ONCE(sqe->addr3));
ix->filename = getname_flags(path, LOOKUP_FOLLOW); ix->filename = getname(path);
if (IS_ERR(ix->filename)) { if (IS_ERR(ix->filename)) {
ret = PTR_ERR(ix->filename); ret = PTR_ERR(ix->filename);
ix->filename = NULL; ix->filename = NULL;