Vulnerability-Lookup

FKIE_CVE-2026-23169

Vulnerability from fkie_nvd - Published: 2026-02-14 16:15 - Updated: 2026-04-03 14:16

Severity ?

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

Summary

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix race in mptcp_pm_nl_flush_addrs_doit() syzbot and Eulgyu Kim reported crashes in mptcp_pm_nl_get_local_id() and/or mptcp_pm_nl_is_backup() Root cause is list_splice_init() in mptcp_pm_nl_flush_addrs_doit() which is not RCU ready. list_splice_init_rcu() can not be called here while holding pernet->lock spinlock. Many thanks to Eulgyu Kim for providing a repro and testing our patches.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1f1b9523527df02685dde603f20ff6e603d8e4a1	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/338d40bab283da2639780ee3e458fb61f1567d8c	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/455e882192c9833f176f3fbbbb2f036b6c5bf555	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/51223bdd0f60b06cfc7f25885c4d4be917adba94	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/7896dbe990d56d5bb8097863b2645355633665eb	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e2a9eeb69f7d4ca4cf4c70463af77664fdb6ab1d	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19

JSON

To clipboard

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CVE-2026-23169 (GCVE-0-2026-23169)

Vulnerability from cvelistv5 – Published: 2026-02-14 16:01 – Updated: 2026-04-03 13:32

Title

mptcp: fix race in mptcp_pm_nl_flush_addrs_doit()

Summary

Severity ?

7.8 (High)


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

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/338d40bab283da263…
	https://git.kernel.org/stable/c/7896dbe990d56d5bb…
	https://git.kernel.org/stable/c/455e882192c9833f1…
	https://git.kernel.org/stable/c/51223bdd0f60b06cf…
	https://git.kernel.org/stable/c/1f1b9523527df0268…
	https://git.kernel.org/stable/c/e2a9eeb69f7d4ca4c…

Impacted products

Vendor

Product

Version

Linux

Affected: 141694df6573b49aa4143c92556544b4b0bbda72 , < 338d40bab283da2639780ee3e458fb61f1567d8c (git)
Affected: 141694df6573b49aa4143c92556544b4b0bbda72 , < 7896dbe990d56d5bb8097863b2645355633665eb (git)
Affected: 141694df6573b49aa4143c92556544b4b0bbda72 , < 455e882192c9833f176f3fbbbb2f036b6c5bf555 (git)
Affected: 141694df6573b49aa4143c92556544b4b0bbda72 , < 51223bdd0f60b06cfc7f25885c4d4be917adba94 (git)
Affected: 141694df6573b49aa4143c92556544b4b0bbda72 , < 1f1b9523527df02685dde603f20ff6e603d8e4a1 (git)
Affected: 141694df6573b49aa4143c92556544b4b0bbda72 , < e2a9eeb69f7d4ca4cf4c70463af77664fdb6ab1d (git)

Linux

Affected: 5.11
Unaffected: 0 , < 5.11 (semver)
Unaffected: 5.15.201 , ≤ 5.15.* (semver)
Unaffected: 6.1.164 , ≤ 6.1.* (semver)
Unaffected: 6.6.125 , ≤ 6.6.* (semver)
Unaffected: 6.12.72 , ≤ 6.12.* (semver)
Unaffected: 6.18.9 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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          "programFiles": [
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}

Sightings

Author	Source	Type	Date

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-2026-23169

CVE-2026-23169 (GCVE-0-2026-23169)

Tags

Sightings

Nomenclature