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CVE-2022-48981: drm/shmem-helper: Remove errant put in error path

ROUTINE

Telemetry drift only. No threshold crossed and no authority ruling changed.

CVE record, CISA KEV and EPSS as of 2026-10-18.

CVEs like this one computed, by meaning

What to do now held facts and links

  1. Upgrade to the fixed version for your release line, or later: kernel 5.10.159; kernel 5.15.83; kernel 5.4.227; kernel 6.0.13 upper bounds of the CVE record's affected ranges
  2. Record your decision, dated and frozen with today's evidence: patch by a date · mitigated by a compensating control · deferred · accepted the risk · not affected
  3. Check your version against the ranges this record publishes.

What it is stated by the CNA

In the Linux kernel, the following vulnerability has been resolved: drm/shmem-helper: Remove errant put in error path drm_gem_shmem_mmap() doesn't own this reference, resulting in the GEM object getting prematurely freed leading to a later use-after-free.

weakness
Not named by the CNA. NVD maps it to CWE-416.
affected
Linux
published ranges
linux kernel >= 5.2 < 5.4.227; linux kernel >= 5.5 < 5.10.159; linux kernel >= 5.11 < 5.15.83; linux kernel >= 5.16 < 6.0.13; and 8 more on the CVE page
first unaffected version, by branch
kernel 5.10.159; kernel 5.15.83; kernel 5.4.227; kernel 6.0.13
fixed by package (from OSV advisories)
Kernel (Linux): 5.15.83; 6.0.13; 5.4.227; 5.10.159 CVE-2022-48981
severity
7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
assigned by
Linux
published
2024-10-21

check us git.kernel.org git.kernel.org git.kernel.org git.kernel.org

Exploit code held, dated

exploit code
None held in the PoC-in-GitHub feed. A public repository changes this brief.

What moved held, dated

dateEPSSevent
22 Oct 20240.00045
26 Oct 20240.00042
17 Mar 20250.00101scoring model v2025.03.14
19 Mar 20250.00054
6 Dec 20250.00015
22 Dec 20250.00017
15 Jun 20260.00249scoring model v2026.06.15
28 Jul 20260.00248

19 observations held. A step marked with a scoring model moved because the measurement was replaced, not because the vulnerability changed.

Outside the record researched, cited

This section reads the record's references and adds cited findings from outside it. It needs an account. Everything above is held facts and is complete without it.

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What would change this brief held, dated

CISA KEV
Not listed in the catalogue we hold. A listing changes this brief.
exploit probability
0.00 on 2026-07-28 (FIRST's EPSS, a probability and not evidence of exploitation). Next band line: 10% (0.10). Crossing a line changes this brief.
fix
Held: kernel 5.10.159; kernel 5.15.83; kernel 5.4.227; kernel 6.0.13. A newer fix from the CNA or OSV changes this brief.

Watch this CVE What counts as a move

How to check this

Every value above is held with two dates: when it was true upstream (as_of) and when we recorded it (tx_from). Re-derive the exploit probability as it stood on any date:

SELECT value, source, source_version, as_of, tx_from
FROM volatile_valid_as_of('CVE-2022-48981', '2026-11-02T23:59:59.999999Z', now());