---
id: CVE-2022-49791
title: 'io_uring: fix multishot accept request leaks'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  io_uring: fix multishot accept request leaks

  Having REQ_F_POLLED set doesn't guarantee that the request is
  executed as a multishot from the polling path. Fortunately f…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 390ed29b5e425ba00da2b6113b74a14949f71b02 <
    0e4626de856ef8f25ecd9c716e76d4f95ce95639
  - >-
    Linux >= 390ed29b5e425ba00da2b6113b74a14949f71b02 <
    91482864768a874c4290ef93b84a78f4f1dac51b
  - Linux 5.19
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T19:48:06.115668Z'
published: '2025-05-01'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T19:49:48.997Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2022-49791'
references:
  - url: 'https://git.kernel.org/stable/c/0e4626de856ef8f25ecd9c716e76d4f95ce95639'
  - url: 'https://git.kernel.org/stable/c/91482864768a874c4290ef93b84a78f4f1dac51b'
tags:
  - cve.org
epss: 0.0017
epssPercentile: 0.06464
ingestedAt: '2026-11-05T22:38:31.596Z'
---

## Overview

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

io_uring: fix multishot accept request leaks

Having REQ_F_POLLED set doesn't guarantee that the request is
executed as a multishot from the polling path. Fortunately for us, if
the code thinks it's multishot issue when it's not, it can only ask to
skip completion so leaking the request. Use issue_flags to mark
multipoll issues.

## Affected

- `Linux >= 390ed29b5e425ba00da2b6113b74a14949f71b02 < 0e4626de856ef8f25ecd9c716e76d4f95ce95639`
- `Linux >= 390ed29b5e425ba00da2b6113b74a14949f71b02 < 91482864768a874c4290ef93b84a78f4f1dac51b`
- `Linux 5.19`

## Remediation

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