CVE-2023-52732

2024-05-2116:15:13

416baaa9-dc9f-4396-8d5f-8c081fb06d67

web.nvd.nist.gov

cve-2023-52732

linux kernel

ceph

kclient

corrupted snap trace

mds

6.6 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

9.1%

JSON

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

ceph: blocklist the kclient when receiving corrupted snap trace

When received corrupted snap trace we don’t know what exactly has
happened in MDS side. And we shouldn’t continue IOs and metadatas
access to MDS, which may corrupt or get incorrect contents.

This patch will just block all the further IO/MDS requests
immediately and then evict the kclient itself.

The reason why we still need to evict the kclient just after
blocking all the further IOs is that the MDS could revoke the caps
faster.

Affected configurations

Vulners

Node

linuxlinux_kernelRange6.1.0–6.1.13

linuxlinux_kernelRange6.2.0≥

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/ceph/addr.c",
      "fs/ceph/caps.c",
      "fs/ceph/file.c",
      "fs/ceph/mds_client.c",
      "fs/ceph/snap.c",
      "fs/ceph/super.h"
    ],
    "versions": [
      {
        "version": "1da177e4c3f4",
        "lessThan": "66ec619e4591",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f4",
        "lessThan": "a68e564adcaa",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/ceph/addr.c",
      "fs/ceph/caps.c",
      "fs/ceph/file.c",
      "fs/ceph/mds_client.c",
      "fs/ceph/snap.c",
      "fs/ceph/super.h"
    ],
    "versions": [
      {
        "version": "6.1.13",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]