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dm flakey: don't corrupt the zero page

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: dm flakey: don't corrupt the zero page When we need to zero some range on a block device, the function __blkdev_issue_zero_pages submits a write bio with the bio vector pointing to the zero page. If we use dm-flakey with corrupt bio writes option, it will corrupt the content of the zero page which results in crashes of various userspace programs. Glibc assumes that memory returned by mmap is zeroed and it uses it for calloc implementation; if the newly mapped memory is not zeroed, calloc will return non-zeroed memory. Fix this bug by testing if the page is equal to ZERO_PAGE(0) and avoiding the corruption in this case.

Announced Group revision 1
Original source ↗

CVE-2023-54317

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-2023-54317

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": "c6cd92fcabd6cc78bb1808c6a18245c842722fc1",
        "lessThan": "b7f8892f672222dbfcc721f51edc03963212b249",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d4c637af2e56ee1ec66ee34d0ac5a13c75911aec",
        "lessThan": "98e311be44dbe31ad9c42aa067b2359bac451fda",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "a00f5276e26636cbf72f24f79831026d2e2868e7",
        "lessThan": "3c4a56ef7c538d16c1738ba0ccea9e7146105b5a",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "a00f5276e26636cbf72f24f79831026d2e2868e7",
        "lessThan": "f2b478228bfdd11e358c5bc197561331f5d5c394",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "a00f5276e26636cbf72f24f79831026d2e2868e7",
        "lessThan": "ff60b2bb680ebcaf8890814dd51084a022891469",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "a00f5276e26636cbf72f24f79831026d2e2868e7",
        "lessThan": "be360c83f2d810493c04f999d69ec9152981e0c0",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "a00f5276e26636cbf72f24f79831026d2e2868e7",
        "lessThan": "63d31617883d64b43b0e2d529f0751f40713ecae",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "a00f5276e26636cbf72f24f79831026d2e2868e7",
        "lessThan": "f50714b57aecb6b3dc81d578e295f86d9c73f078",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "1ed7c9f45fb893877ffa7cedd7aa61beaadbb328",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "4.14.158",
        "lessThan": "4.14.308",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "4.19.88",
        "lessThan": "4.19.276",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "4.9.206",
        "lessThan": "4.10",
        "versionType": "semver"
      }
    ],
    "programFiles": [
      "drivers/md/dm-flakey.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "5.0"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.0",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "4.14.308",
        "versionType": "semver",
        "lessThanOrEqual": "4.14.*"
      },
      {
        "status": "unaffected",
        "version": "4.19.276",
        "versionType": "semver",
        "lessThanOrEqual": "4.19.*"
      },
      {
        "status": "unaffected",
        "version": "5.4.235",
        "versionType": "semver",
        "lessThanOrEqual": "5.4.*"
      },
      {
        "status": "unaffected",
        "version": "5.10.173",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.99",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.16",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.2.3",
        "versionType": "semver",
        "lessThanOrEqual": "6.2.*"
      },
      {
        "status": "unaffected",
        "version": "6.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/md/dm-flakey.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2023-54317

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#30379 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. CVE-2023-54317 · Revision 1Source updated