---
id: CVE-2026-98071
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  net/rds: clear cp_flags bits individually in rds_conn_path_reset()

  rds_conn_path_reset() wipes the whole flag word with a plain
  cp->cp_flags = 0 store
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  net/rds: clear cp_flags bits individually in rds_conn_path_reset()

  rds_conn_path_reset() wipes the whole flag word with a plain
  cp->cp_flags = 0 store.  Every other ac…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 00e0f34c616603ba6500f41943cbf89eb4a8a5be <
    ed3ee0ac4aafda50c2f4381eb973beefeb7879ac
  - >-
    Linux >= 00e0f34c616603ba6500f41943cbf89eb4a8a5be <
    6b8d7563c28b8112e6e54abe413b028ef3f8c549
  - >-
    Linux >= 00e0f34c616603ba6500f41943cbf89eb4a8a5be <
    cb62aa8f04655a4df487913949719c0a1266ed73
  - >-
    Linux >= 00e0f34c616603ba6500f41943cbf89eb4a8a5be <
    103c4b13c4f50322910078d1c02f29334a574122
  - Linux 2.6.30
published: '2026-09-25'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T11:17:36.327'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-98071'
references:
  - url: 'https://git.kernel.org/stable/c/103c4b13c4f50322910078d1c02f29334a574122'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/6b8d7563c28b8112e6e54abe413b028ef3f8c549'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/cb62aa8f04655a4df487913949719c0a1266ed73'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/ed3ee0ac4aafda50c2f4381eb973beefeb7879ac'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-25T11:06:38.839Z'
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

net/rds: clear cp_flags bits individually in rds_conn_path_reset()

rds_conn_path_reset() wipes the whole flag word with a plain
cp->cp_flags = 0 store.  Every other accessor of that word uses
atomic bitops, and some of them can run concurrently with the reset:
RDS_LL_SEND_FULL is set from rds_send_xmit() and cleared from the
transport completion paths, neither of which holds anything that
excludes the shutdown worker.  A plain store racing an atomic
read-modify-write on the same word is a data race, and whichever
side loses has its update silently discarded.

Clear the two bits the reset is actually responsible for instead.
RDS_IN_XMIT and RDS_RECV_REFILL need no store at all here: they
belong to the caller, rds_conn_shutdown(), which waits for both to be
clear before calling the transport shutdown and this reset.

This also gives every bit in cp_flags a single well-defined writer
discipline, which the following patches rely on when they turn
RDS_IN_XMIT and RDS_RECV_REFILL into bit locks held across the
teardown: a blanket store mid-teardown would destroy lock ownership
that an atomic clear preserves.

Oracle UEK carries the same conversion ("net/rds: Preserve essential
connection state flags"), motivated by its asynchronous shutdown
state machine, whose progress and destroy flags must survive the
reset.  UEK's variant also clears RDS_IN_XMIT and RDS_RECV_REFILL
because there the reset runs as the final step of a teardown that
owns both bits, making those clears its unlock.  Upstream that
release belongs in rds_conn_shutdown(): once a later patch in this
series turns the two bits into locks held across the teardown, ending
ownership needs release semantics and a wake-up that a plain clear
inside the reset would not provide.

Based on Oracle UEK commit "net/rds: Preserve essential connection
state flags" by Gerd Rausch.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.