CVE-2023-52914 io_uring/poll: add hash if ready poll request can't complete inline

2024-08-2106:10:55

Linux

www.cve.org

linux

kernel

vulnerability

resolved

io_uring

poll

hash

ready

request

complete

inline

access

leak

ring

exit

process

EPSS

Percentile

9.5%

JSON

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

io_uring/poll: add hash if ready poll request can’t complete inline

If we don’t, then we may lose access to it completely, leading to a
request leak. This will eventually stall the ring exit process as
well.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "io_uring/poll.c"
    ],
    "versions": [
      {
        "version": "49f1c68e048f",
        "lessThan": "4ad6c0635416",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "49f1c68e048f",
        "lessThan": "febb985c06cb",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "io_uring/poll.c"
    ],
    "versions": [
      {
        "version": "6.0",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.0",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.7",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]