CVE-2025-40149High· 7.8▾ TwilightIn 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 c…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.9 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Sep 8.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.2%
7.8 → 5
high → medium
0.2% → 0.2%
Last analysed / modified upstream
5 → 7.8
medium → high
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.
linux_kernel >= 4.18, < 5.15.199linux_kernel >= 5.16, < 6.1.161linux_kernel >= 6.2, < 6.6.121linux_kernel >= 6.7, < 6.12.66linux_kernel >= 6.13, < 6.17.3Upgrade past the affected range:
linux_kernel 6.17.3Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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