Vulnerability-Lookup

FKIE_CVE-2026-43041

Vulnerability from fkie_nvd - Published: 2026-05-01 15:16 - Updated: 2026-05-08 18:54

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: net: qrtr: replace qrtr_tx_flow radix_tree with xarray to fix memory leak __radix_tree_create() allocates and links intermediate nodes into the tree one by one. If a subsequent allocation fails, the already-linked nodes remain in the tree with no corresponding leaf entry. These orphaned internal nodes are never reclaimed because radix_tree_for_each_slot() only visits slots containing leaf values. The radix_tree API is deprecated in favor of xarray. As suggested by Matthew Wilcox, migrate qrtr_tx_flow from radix_tree to xarray instead of fixing the radix_tree itself [1]. xarray properly handles cleanup of internal nodes — xa_destroy() frees all internal xarray nodes when the qrtr_node is released, preventing the leak. [1] https://lore.kernel.org/all/20260225071623.41275-1-jiayuan.chen@linux.dev/T/

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/0fda873092b541bb5a9b87d728a2429f863f8cfa	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2428083101f6883f979cceffa76cd8440751ffe6	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4b75ff0aedd6ade1018ad4a3a9d8336794e36e42	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/5d2249eefaca59908fe3c264b8eca526424dcfbe	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/69402908e277dd164bf8d7c8fd0513c0fac28e9e	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f2664bc4f0f356f17c2094587a2b3665e3867e44	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f2dd9aaf6e2861337f5835f877a5b2becaf4b015	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ff134cc43972d7ddceff8cfd36cf6b9eaafc00b3	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
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
linux	linux_kernel	7.0

JSON

To clipboard

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}

CVE-2026-43041 (GCVE-0-2026-43041)

Vulnerability from cvelistv5 – Published: 2026-05-01 14:15 – Updated: 2026-05-11 22:16

Title

net: qrtr: replace qrtr_tx_flow radix_tree with xarray to fix memory leak

Summary

Severity

No CVSS data available.

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/f2dd9aaf6e2861337…
https://git.kernel.org/stable/c/4b75ff0aedd6ade10…
https://git.kernel.org/stable/c/ff134cc43972d7ddc…
https://git.kernel.org/stable/c/0fda873092b541bb5…
https://git.kernel.org/stable/c/69402908e277dd164…
https://git.kernel.org/stable/c/f2664bc4f0f356f17…
https://git.kernel.org/stable/c/5d2249eefaca59908…
https://git.kernel.org/stable/c/2428083101f6883f9…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 5fdeb0d372ab33b4175043a2a4a1730239a217f1 , < f2dd9aaf6e2861337f5835f877a5b2becaf4b015 (git) Affected: 5fdeb0d372ab33b4175043a2a4a1730239a217f1 , < 4b75ff0aedd6ade1018ad4a3a9d8336794e36e42 (git) Affected: 5fdeb0d372ab33b4175043a2a4a1730239a217f1 , < ff134cc43972d7ddceff8cfd36cf6b9eaafc00b3 (git) Affected: 5fdeb0d372ab33b4175043a2a4a1730239a217f1 , < 0fda873092b541bb5a9b87d728a2429f863f8cfa (git) Affected: 5fdeb0d372ab33b4175043a2a4a1730239a217f1 , < 69402908e277dd164bf8d7c8fd0513c0fac28e9e (git) Affected: 5fdeb0d372ab33b4175043a2a4a1730239a217f1 , < f2664bc4f0f356f17c2094587a2b3665e3867e44 (git) Affected: 5fdeb0d372ab33b4175043a2a4a1730239a217f1 , < 5d2249eefaca59908fe3c264b8eca526424dcfbe (git) Affected: 5fdeb0d372ab33b4175043a2a4a1730239a217f1 , < 2428083101f6883f979cceffa76cd8440751ffe6 (git)
Linux	Linux	Affected: 5.6 Unaffected: 0 , < 5.6 (semver) Unaffected: 5.10.253 , ≤ 5.10.* (semver) Unaffected: 5.15.203 , ≤ 5.15.* (semver) Unaffected: 6.1.168 , ≤ 6.1.* (semver) Unaffected: 6.6.134 , ≤ 6.6.* (semver) Unaffected: 6.12.81 , ≤ 6.12.* (semver) Unaffected: 6.18.22 , ≤ 6.18.* (semver) Unaffected: 6.19.12 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/qrtr/af_qrtr.c"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-43041",
    "datePublished": "2026-05-01T14:15:38.112Z",
    "dateReserved": "2026-05-01T14:12:55.978Z",
    "dateUpdated": "2026-05-11T22:16:34.530Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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-2026-43041

CVE-2026-43041 (GCVE-0-2026-43041)

Tags

Sightings

Nomenclature