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Critical

ceph: fix potential use-after-free bug when trimming caps

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: ceph: fix potential use-after-free bug when trimming caps When trimming the caps and just after the 'session->s_cap_lock' is released in ceph_iterate_session_caps() the cap maybe removed by another thread, and when using the stale cap memory in the callbacks it will trigger use-after-free crash. We need to check the existence of the cap just after the 'ci->i_ceph_lock' being acquired. And do nothing if it's already removed.

Announced Source revision 1
Original source ↗

CVE-2023-53867

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2023-53867

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "2f2dc053404febedc9c273452d9d518fb31fde72",
        "lessThan": "2b2515b8095cf2149bef44383a99d5b5677f1831",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "2f2dc053404febedc9c273452d9d518fb31fde72",
        "lessThan": "448875a73e16ba7d81dec9274ce9d33a12d092fb",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "2f2dc053404febedc9c273452d9d518fb31fde72",
        "lessThan": "ae6e935618d99cdba11eab4714092e7e5f13cf7e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "2f2dc053404febedc9c273452d9d518fb31fde72",
        "lessThan": "aaf67de78807c59c35bafb5003d4fb457c764800",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "fs/ceph/caps.c",
      "fs/ceph/debugfs.c",
      "fs/ceph/mds_client.c",
      "fs/ceph/mds_client.h",
      "fs/ceph/super.h"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "2.6.34"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "2.6.34",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "6.1.28",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.2.15",
        "versionType": "semver",
        "lessThanOrEqual": "6.2.*"
      },
      {
        "status": "unaffected",
        "version": "6.3.2",
        "versionType": "semver",
        "lessThanOrEqual": "6.3.*"
      },
      {
        "status": "unaffected",
        "version": "6.4",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "fs/ceph/caps.c",
      "fs/ceph/debugfs.c",
      "fs/ceph/mds_client.c",
      "fs/ceph/mds_client.h",
      "fs/ceph/super.h"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2023-53867

Source reference: /cveMetadata/cveId

Publisher severity

critical

Source reference: /containers/cna/metrics

Event
#30331 · Revision 1
Added to Heist Feed
Publisher date
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