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Vulnerabilities

Vulnerability · CVE-2022-50752

In the Linux kernel, the following vulnerability has been resolved: md/raid5: Remove unnecessary bio_put() in raid5_read_one_chunk() When running chunk-sized reads on disks with ba

Published Dec 24, 2025 · catalog updated Aug 5, 2026 · Linux Linux

Last checked Oct 29, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2022-50752. EPSS is 0.20%. Act only if a listed version of Linux Linux is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High7.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.20%
Remediation
Version ranges on file
Affected products
vendor Linux Linux c82aa1b76787c34fd02374e519b6f52cdeb2f54b <c0fd5d4d8fd7b1a50306d7a23c720cf808f41fdf

In the Linux kernel, the following vulnerability has been resolved: md/raid5: Remove unnecessary bio_put() in raid5_read_one_chunk() When running chunk-sized reads on disks with badblocks duplicate bio free/puts are observed: ============================================================================= BUG bio-200 (Not tainted): Object already free ----------------------------------------------------------------------------- Allocated in mempool_alloc_slab+0x17/0x20 age=3 cpu=2 pid=7504 __slab_alloc.constprop.0+0x5a/0xb0 kmem_cache_alloc+0x31e/0x330 mempool_alloc_slab+0x17/0x20 mempool_alloc+0

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Linux Linux c82aa1b76787c34fd02374e519b6f52cdeb2f54b <c0fd5d4d8fd7b1a50306d7a23c720cf808f41fdfc82aa1b76787c34fd02374e519b6f52cdeb2f54b <c0fd5d4d8fd7b1a50306d7a23c720cf808f41fdf

How to fix CVE-2022-50752

  • Upgrade

    CVE-2022-50752 lists a fix boundary at c0fd5d4d8fd7b1a50306d7a23c720cf808f41fdf. Compare the installed build with that boundary before you change production.

  • Version check

    Seen in c82aa1b76787c34fd02374e519b6f52cdeb2f54b <c0fd5d4d8fd7b1a50306d7a23c720cf808f41fdf

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2022-50752. EPSS is 0.20%. Act only if a listed version of Linux Linux is installed.

Which versions are affected?

Compare what you have installed with Linux Linux c82aa1b76787c34fd02374e519b6f52cdeb2f54b <c0fd5d4d8fd7b1a50306d7a23c720cf808f41fdf c82aa1b76787c34fd02374e519b6f52cdeb2f54b <c0fd5d4d8fd7b1a50306d7a23c720cf808f41fdf. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.20%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Dec 24, 2025 · EUVD

    Detected

    In the Linux kernel, the following vulnerability has been resolved: md/raid5: Remove unnecessary bio_put() in raid5_read_one_chunk() When running chunk-sized reads on disks with badblocks duplicate bio free/puts are observed: ============================================================================= BUG bio-200 (Not tainted): Object already free -------------------------------------------------

  2. Aug 5, 2026 · EUVD

    Updated

    In the Linux kernel, the following vulnerability has been resolved: md/raid5: Remove unnecessary bio_put() in raid5_read_one_chunk() When running chunk-sized reads on disks with badblocks duplicate bio free/puts are observed: ============================================================================= BUG bio-200 (Not tainted): Object already free -------------------------------------------------

Sources

  • CVE.orgVulnerability recordCVE-2022-50752

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2022-50752

    30-day exploitation probability 0.20%

    first.org
  • EUVDVulnerability recordEUVD-2022-55809

    In the Linux kernel, the following vulnerability has been resolved: md/raid5: Remove unnecessary bio_put() in raid5_read_one_chunk() When running chunk-sized reads on disks with badblocks duplicate bio free/puts are observed: ======================================================

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 29, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgOct 29, 2026
  • FIRST EPSSOct 29, 2026
  • EUVDOct 29, 2026