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CVE-2025-40149

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CVE-2025-40149

Published: Nov 12, 2025

Modified: May 11, 2026

PUBLISHED

Description

In the Linux kernel, the following vulnerability has been resolved: tls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock(). get_netdev_for_sock() is called during setsockopt(), so not under RCU. Using sk_dst_get(sk)->dev could trigger UAF. Let's use __sk_dst_get() and dst_dev_rcu(). Note that the only ->ndo_sk_get_lower_dev() user is bond_sk_get_lower_dev(), which uses RCU.

VendorProductVersions

Linux

Linux

affected
e8f69799810c32dd40c6724d829eccc70baad07f - < 2b1bef126bbb8d0da51491357559126d567c1dee
affected
e8f69799810c32dd40c6724d829eccc70baad07f - < e37ca0092ddace60833790b4ad7a390408fb1be9
affected
e8f69799810c32dd40c6724d829eccc70baad07f - < 13159c7125636371543a82cb7bbae00ab36730cc
affected
e8f69799810c32dd40c6724d829eccc70baad07f - < f09cd209359a23f88d4f3fa3d2379d057027e53c
affected
e8f69799810c32dd40c6724d829eccc70baad07f - < feb474ddbf26b51f462ae2e60a12013bdcfc5407

+1 more versions

Linux

Linux

affected
4.18
unaffected
0 - < 4.18
unaffected
5.15.199 - <= 5.15.*
unaffected
6.1.161 - <= 6.1.*
unaffected
6.6.121 - <= 6.6.*

+3 more versions

References

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