CVE-2025-38675High· 7.8▾ TwilightIn the Linux kernel, the following vulnerability has been resolved: xfrm: state: initialize state_ptrs earlier in xfrm_state_find In case of preemption, xfrm_state_look_at will find a different pcpu_id and look up states for that other…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.9 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Nov 3.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.1%
In the Linux kernel, the following vulnerability has been resolved:
xfrm: state: initialize state_ptrs earlier in xfrm_state_find
In case of preemption, xfrm_state_look_at will find a different pcpu_id and look up states for that other CPU. If we matched a state for CPU2 in the state_cache while the lookup started on CPU1, we will jump to "found", but the "best" state that we got will be ignored and we will enter the "acquire" block. This block uses state_ptrs, which isn't initialized at this point.
Let's initialize state_ptrs just after taking rcu_read_lock. This will also prevent a possible misuse in the future, if someone adjusts this function.
Linux >= a16871c7832ea6435abb6e0b58289ae7dcb7e4fc < 6bf2daafc51bcb9272c0fdff2afd38217337d0d3Linux >= e952837f3ddb0ff726d5b582aa1aad9aa38d024d < 463562f9591742be62ddde3b426a0533ed496955Linux >= e952837f3ddb0ff726d5b582aa1aad9aa38d024d < 94d077c331730510d5611b438640a292097341f0Linux 80610185e9dd2ef7c0a4818a47390a8655b3dc27Linux b86dc510308d7a8955f3f47a4fea4bef887653e4Linux dd4c2a174994238d55ab54da2545543d36f4e0d0Linux >= 6.12.13 < 6.12.41Linux >= 6.1.191 < 6.2Linux >= 6.6.120 < 6.7Linux >= 6.13.2 < 6.14Linux 6.14Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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