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CVE-2025-40170 (GCVE-0-2025-40170)

Vulnerability from cvelistv5 – Published: 2025-11-12 10:46 – Updated: 2026-08-05 12:08
VLAI
Title
net: use dst_dev_rcu() in sk_setup_caps()
Summary
In the Linux kernel, the following vulnerability has been resolved: net: use dst_dev_rcu() in sk_setup_caps() Use RCU to protect accesses to dst->dev from sk_setup_caps() and sk_dst_gso_max_size(). Also use dst_dev_rcu() in ip6_dst_mtu_maybe_forward(), and ip_dst_mtu_maybe_forward(). ip4_dst_hoplimit() can use dst_dev_net_rcu().
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-16 19:33 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 , < 5d1be493d1110c9e720b4c51a6e587bb2fb4ac12 (git)
Affected: 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 , < a805729c0091073d8f0415cfa96c7acd1bc17a48 (git)
Affected: 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 , < 99a2ace61b211b0be861b07fbaa062fca4b58879 (git)
guessed Create a notification for this product.
Linux Linux Affected: 4.13
Unaffected: 0 , < 4.13 (semver)
Unaffected: 6.12.64 , ≤ 6.12.* (semver)
Unaffected: 6.17.3 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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  • 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.
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  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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