cbcvebase.
CVE-2025-38675
published 2025-08-22

CVE-2025-38675: In the Linux kernel, the following vulnerability has been resolved: xfrm: state: initialize state_ptrs earlier in xfrm_state_find In case of preemption…

PriorityP415medium4.7CVSS 3.1
AVLACHPRLUINSUCNINAH
EPSS
0.11%
1.8th percentile
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.

Affected

31 ranges· showing 25
VendorProductVersion rangeFixed in
debianlinux< linux 6.16.3-1 (forky)linux 6.16.3-1 (forky)
linuxlinux
linuxlinux
linuxlinux
linuxlinux>= 6.12.13 < 6.12.416.12.41
linuxlinux>= 6.13.2 < 6.146.14
linuxlinux>= 6.6.120 < 6.76.7
linuxlinux>= a16871c7832ea6435abb6e0b58289ae7dcb7e4fc < 6bf2daafc51bcb9272c0fdff2afd38217337d0d36bf2daafc51bcb9272c0fdff2afd38217337d0d3
linuxlinux>= e952837f3ddb0ff726d5b582aa1aad9aa38d024d < 463562f9591742be62ddde3b426a0533ed496955463562f9591742be62ddde3b426a0533ed496955
linuxlinux>= e952837f3ddb0ff726d5b582aa1aad9aa38d024d < 94d077c331730510d5611b438640a292097341f094d077c331730510d5611b438640a292097341f0
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel>= 0 < 6.12.41-16.12.41-1
linuxlinux_kernel>= 0 < 6.16.3-16.16.3-1
linuxlinux_kernel>= 0 < 6.8.0-100.1006.8.0-100.100
linuxlinux_kernel>= 6.12.13 < 6.12.416.12.41
linuxlinux_kernel>= 6.13.2 < 6.15.96.15.9
ubuntulinux-aws
ubuntulinux-aws-6.8
ubuntulinux-gkeop

CVSS provenance

nvdv3.14.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
osv4.7MEDIUM
vendor_debian4.7LOW
vendor_redhat4.7MEDIUM
vendor_ubuntu3.2LOW
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