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Review reviewHigh

CVE-2022-50022

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: drivers:md:fix a potential use-after-free bug In line 2884, "raid5_release_stripe(sh);" drops the reference to sh and may cause sh to be released. However, sh is subsequently used in lines 2886 "if (sh->batch_head && sh != sh->batch_head)". This may result in an use-after-free bug. It can be fixed by moving "raid5_release_stripe(sh);" to the bottom of the function.

CVSS
7.8
EPSS
-
- percentile
CISA KEV
Not listed
Published
2025.06.18
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability-
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: drivers:md:fix a potential use-after-free bug In line 2884, "raid5_release_stripe(sh);" drops the reference to sh and may cause sh to be released. However, sh is subsequently used in lines 2886 "if (sh->batch_head && sh != sh->batch_head)". This may result in an use-after-free bug. It can be fixed by moving "raid5_release_stripe(sh);" to the bottom of the function.

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= 59fc630b8b5f9f21c8ce3ba153341c107dce1b0c < 7470a4314b239e9a9580f248fdf4c9a92805490e, >= 59fc630b8b5f9f21c8ce3ba153341c107dce1b0c < 09cf99bace7789d91caa8d10fbcfc8b2fb35857f, >= 59fc630b8b5f9f21c8ce3ba153341c107dce1b0c < e5b3dd2d92c4511e81f6e4ec9c5bb7ad25e03d13, >= 59fc630b8b5f9f21c8ce3ba153341c107dce1b0c < f5d46f1b47f65da1faf468277b261eb78c8e25b5, >= 59fc630b8b5f9f21c8ce3ba153341c107dce1b0c < 5d8325fd15892c8ab1146edc1d7ed8463de39636, >= 59fc630b8b5f9f21c8ce3ba153341c107dce1b0c < d9b94c3ace549433de8a93eeb27b0391fc8ac406, >= 59fc630b8b5f9f21c8ce3ba153341c107dce1b0c < eb3a4f73f43f839df981dda5859e8e075067a360, >= 59fc630b8b5f9f21c8ce3ba153341c107dce1b0c < 104212471b1c1817b311771d817fb692af983173, >= 4.1, >= 4.1 < 4.9.326, >= 4.10 < 4.14.291, >= 4.15 < 4.19.256, >= 4.20 < 5.4.211, >= 5.5 < 5.10.138, >= 5.11 < 5.15.63, >= 5.16 < 5.19.4
Fixed versions
4.9.326, 4.14.291, 4.19.256, 5.4.211, 5.10.138, 5.15.63, 5.19.4

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-416