Vulnerability-Lookup

FKIE_CVE-2026-31459

Vulnerability from fkie_nvd - Published: 2026-04-22 14:16 - Updated: 2026-05-06 20:03

Severity

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: fix param_ctx leak on damon_sysfs_new_test_ctx() failure Patch series "mm/damon/sysfs: fix memory leak and NULL dereference issues", v4. DAMON_SYSFS can leak memory under allocation failure, and do NULL pointer dereference when a privileged user make wrong sequences of control. Fix those. This patch (of 3): When damon_sysfs_new_test_ctx() fails in damon_sysfs_commit_input(), param_ctx is leaked because the early return skips the cleanup at the out label. Destroy param_ctx before returning.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/7fe000eb32904758a85e62f6ea9483f89d5dabfc	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e9de9f3ce06b133a348006668bc8d25c6e504867	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f76f0a964bc3d7b7e253b43c669c41356bc54e71	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	6.17.6
linux	linux_kernel	6.18
linux	linux_kernel	6.18
linux	linux_kernel	6.18
linux	linux_kernel	6.18
linux	linux_kernel	6.18
linux	linux_kernel	6.18
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0

JSON

To clipboard

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    }
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  "id": "CVE-2026-31459",
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      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
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  ]
}

CVE-2026-31459 (GCVE-0-2026-31459)

Vulnerability from cvelistv5 – Published: 2026-04-22 13:53 – Updated: 2026-05-23 16:05

Title

mm/damon/sysfs: fix param_ctx leak on damon_sysfs_new_test_ctx() failure

Summary

Severity

No CVSS data available.

Assigner

Linux

References

3 references

URL	Tags
https://git.kernel.org/stable/c/e9de9f3ce06b133a3…
https://git.kernel.org/stable/c/f76f0a964bc3d7b7e…
https://git.kernel.org/stable/c/7fe000eb32904758a…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: f0c5118ebb0eb7e4fd6f0d2ace3315ca141b317f , < e9de9f3ce06b133a348006668bc8d25c6e504867 (git) Affected: f0c5118ebb0eb7e4fd6f0d2ace3315ca141b317f , < f76f0a964bc3d7b7e253b43c669c41356bc54e71 (git) Affected: f0c5118ebb0eb7e4fd6f0d2ace3315ca141b317f , < 7fe000eb32904758a85e62f6ea9483f89d5dabfc (git) Affected: 5b3609d9b9650bdea0bfdf643e0ce57e1aed67fc (git) Affected: 6.17.6 , < 6.18 (semver)
Linux	Linux	Affected: 6.18 Unaffected: 0 , < 6.18 (semver) Unaffected: 6.18.21 , ≤ 6.18.* (semver) Unaffected: 6.19.11 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2026-31459

CVE-2026-31459 (GCVE-0-2026-31459)

Tags

Sightings

Nomenclature