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CVE-2022-50506 drbd: only clone bio if we have a backing device

🗓️ 04 Oct 2025 15:43:54Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 29 Views

Fix DRBD: clone bio only if a backing device exists to avoid null pointer dereference.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
astralinux
AstraLinux
Astra Linux – Vulnerability in Linux 5.10
20 May 202605:53
–astralinux
bdu_fstec
BDU FSTEC
Linux kernel Block Device Heap Buffer Overflow DoS
25 Aug 202600:00
–bdu_fstec
cnnvd
CNNVD
Linux kernel 安全漏洞
4 Oct 202500:00
–cnnvd
cve
CVE
CVE-2022-50506
4 Oct 202515:43
–cve
debiancve
Debian CVE
CVE-2022-50506
4 Oct 202515:43
–debiancve
nvd
NVD
CVE-2022-50506
4 Oct 202516:15
–nvd
osv_debian
osv_debian
DEBIAN-CVE-2022-50506
4 Oct 202516:15
–osv_debian
osv_rhsa
osv_rhsa
RHSA-2022:8267 Red Hat Security Advisory: kernel security, bug fix, and enhancement update
30 Sep 202420:29
–osv_rhsa
osv_rhsa
osv_rhsa
RHSA-2023:2458 Red Hat Security Advisory: kernel security, bug fix, and enhancement update
16 Sep 202409:02
–osv_rhsa
osv_ubuntu
osv_ubuntu
UBUNTU-CVE-2022-50506
4 Oct 202516:15
–osv_ubuntu
Rows per page
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/block/drbd/drbd_req.c"
    ],
    "versions": [
      {
        "version": "c347a787e34cba0e5a80a04082dacaf259105605",
        "lessThan": "05580a3bbf3cec677cb00a85dfeb21d6a9b48eaf",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c347a787e34cba0e5a80a04082dacaf259105605",
        "lessThan": "6d42ddf7f27b6723549ee6d4c8b1b418b59bf6b5",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/block/drbd/drbd_req.c"
    ],
    "versions": [
      {
        "version": "5.18",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.18",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.0.6",
        "lessThanOrEqual": "6.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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11 May 2026 19:20Current
EPSS0.00137
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