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CVE-2025-40170

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CVE-2025-40170

Published: Nov 12, 2025

Modified: May 11, 2026

PUBLISHED

Description

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().

VendorProductVersions

Linux

Linux

affected
4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 - < 5d1be493d1110c9e720b4c51a6e587bb2fb4ac12
affected
4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 - < a805729c0091073d8f0415cfa96c7acd1bc17a48
affected
4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 - < 99a2ace61b211b0be861b07fbaa062fca4b58879

Linux

Linux

affected
4.13
unaffected
0 - < 4.13
unaffected
6.12.64 - <= 6.12.*
unaffected
6.17.3 - <= 6.17.*
unaffected
6.18 - <= *

References

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