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Notable regression fixes: 

- Fix NFSD crash during NFSv4.2 READ_PLUS operation
 - Fix incorrect status code returned by COMMIT operation
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Merge tag 'nfsd-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

Pull nfsd fixes from Chuck Lever:
 "Notable regression fixes:

   - Fix NFSD crash during NFSv4.2 READ_PLUS operation

   - Fix incorrect status code returned by COMMIT operation"

* tag 'nfsd-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
  SUNRPC: Fix READ_PLUS crasher
  NFSD: restore EINVAL error translation in nfsd_commit()
This commit is contained in:
Linus Torvalds 2022-07-02 11:20:56 -07:00
parent 34074da542 a23dd544de
commit 69cb6c6556
2 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
fs/nfsd/vfs.c
View File

@ -1179,6 +1179,7 @@ nfsd_commit(struct svc_rqst *rqstp, struct svc_fh *fhp, u64 offset,
nfsd_copy_write_verifier(verf, nn);
err2 = filemap_check_wb_err(nf->nf_file->f_mapping,
since);
err = nfserrno(err2);
break;
case -EINVAL:
err = nfserr_notsupp;
@ -1186,8 +1187,8 @@ nfsd_commit(struct svc_rqst *rqstp, struct svc_fh *fhp, u64 offset,
default:
nfsd_reset_write_verifier(nn);
trace_nfsd_writeverf_reset(nn, rqstp, err2);
err = nfserrno(err2);
}
err = nfserrno(err2);
} else
nfsd_copy_write_verifier(verf, nn);

2
net/sunrpc/xdr.c
View File

@ -984,7 +984,7 @@ static noinline __be32 *xdr_get_next_encode_buffer(struct xdr_stream *xdr,
p = page_address(*xdr->page_ptr);
xdr->p = p + frag2bytes;
space_left = xdr->buf->buflen - xdr->buf->len;
if (space_left - nbytes >= PAGE_SIZE)
if (space_left - frag1bytes >= PAGE_SIZE)
xdr->end = p + PAGE_SIZE;
else
xdr->end = p + space_left - frag1bytes;