Vulnerability-Lookup

FKIE_CVE-2026-46267

Vulnerability from fkie_nvd - Published: 2026-06-03 18:16 - Updated: 2026-06-09 19:48

Severity

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

Summary

In the Linux kernel, the following vulnerability has been resolved: nfc: hci: shdlc: Stop timers and work before freeing context llc_shdlc_deinit() purges SHDLC skb queues and frees the llc_shdlc structure while its timers and state machine work may still be active. Timer callbacks can schedule sm_work, and sm_work accesses SHDLC state and the skb queues. If teardown happens in parallel with a queued/running work item, it can lead to UAF and other shutdown races. Stop all SHDLC timers and cancel sm_work synchronously before purging the queues and freeing the context. Found by Linux Verification Center (linuxtesting.org) with SVACE.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1cb97b1225450af3f7b728777929ba50c6a58ced	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/276820278e9717cc7d4bb32381892dd3ddf418d4	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/77eef9f2eef045c3c37a3df82d3e661afb866b98	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a24a676329d40481b2331bfa1418a679577dfd3a	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c60f41022eaad2a1dafecd3ae6f249a3bd6d4b6e	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c9efde1e537baed7648a94022b43836a348a074f	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/cf70cedce327833296ebe6043364d1e44b76a2ab	Patch

Impacted products

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

JSON

To clipboard

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    }
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  "lastModified": "2026-06-09T19:48:21.260",
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          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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        "impactScore": 5.9,
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}

CVE-2026-46267 (GCVE-0-2026-46267)

Vulnerability from cvelistv5 – Published: 2026-06-03 15:50 – Updated: 2026-06-03 15:50

Title

nfc: hci: shdlc: Stop timers and work before freeing context

Summary

Severity

No CVSS data available.

Assigner

Linux

References

7 references

URL	Tags
https://git.kernel.org/stable/c/c60f41022eaad2a1d…
https://git.kernel.org/stable/c/a24a676329d40481b…
https://git.kernel.org/stable/c/77eef9f2eef045c3c…
https://git.kernel.org/stable/c/cf70cedce32783329…
https://git.kernel.org/stable/c/276820278e9717cc7…
https://git.kernel.org/stable/c/1cb97b1225450af3f…
https://git.kernel.org/stable/c/c9efde1e537baed76…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 4a61cd6687fc6348d08724676d34e38160d6cf9b , < c60f41022eaad2a1dafecd3ae6f249a3bd6d4b6e (git) Affected: 4a61cd6687fc6348d08724676d34e38160d6cf9b , < a24a676329d40481b2331bfa1418a679577dfd3a (git) Affected: 4a61cd6687fc6348d08724676d34e38160d6cf9b , < 77eef9f2eef045c3c37a3df82d3e661afb866b98 (git) Affected: 4a61cd6687fc6348d08724676d34e38160d6cf9b , < cf70cedce327833296ebe6043364d1e44b76a2ab (git) Affected: 4a61cd6687fc6348d08724676d34e38160d6cf9b , < 276820278e9717cc7d4bb32381892dd3ddf418d4 (git) Affected: 4a61cd6687fc6348d08724676d34e38160d6cf9b , < 1cb97b1225450af3f7b728777929ba50c6a58ced (git) Affected: 4a61cd6687fc6348d08724676d34e38160d6cf9b , < c9efde1e537baed7648a94022b43836a348a074f (git)
Linux	Linux	Affected: 3.7 Unaffected: 0 , < 3.7 (semver) Unaffected: 5.15.202 , ≤ 5.15.* (semver) Unaffected: 6.1.165 , ≤ 6.1.* (semver) Unaffected: 6.6.128 , ≤ 6.6.* (semver) Unaffected: 6.12.75 , ≤ 6.12.* (semver) Unaffected: 6.18.14 , ≤ 6.18.* (semver) Unaffected: 6.19.4 , ≤ 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-2026-46267

CVE-2026-46267 (GCVE-0-2026-46267)

Tags

Sightings

Nomenclature