CVE-2025-39965
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
36/100
Published: 2025-10-13
Modified: 2026-10-30
First seen: 2026-10-30
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
Description
In the Linux kernel, the following vulnerability has been resolved: xfrm: xfrm_alloc_spi shouldn't use 0 as SPI x->id.spi == 0 means "no SPI assigned", but since commit 94f39804d891 ("xfrm: Duplicate SPI Handling"), we now create states and add them to the byspi list with this value. __xfrm_state_delete doesn't remove those states from the byspi list, since they shouldn't be there, and this shows up as a UAF the next time we go through the byspi list.
Affected Software (19)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | 3d8090bb53424432fa788fe9a49e8ceca74f0544 < 0baf92d0b1590b903c1f4ead75e61715e50e8146 |
| Linux | Linux | 2fc5b54368a1bf1d2d74b4d3b8eea5309a653e38 < 9fcedabaae0096f712bbb4ccca6a8538af1cd1c8 |
| Linux | Linux | 29e9158f91f99057dbd35db5e8674d93b38549fe < a78e55776522373c446f18d5002a8de4b09e6bf7 |
| Linux | Linux | 94f39804d891cffe4ce17737d295f3b195bc7299 < cd8ae32e4e4652db55bce6b9c79267d8946765a9 |
| Linux | Linux | fb58962aa3b9359988c7b5b15a971fd9ad5b0ecd |
| Linux | Linux | c67d4e7a8f90fb6361ca89d4d5c9a28f4e935e47 |
| Linux | Linux | 6.1.191 < 6.2 |
| Linux | Linux | 6.15.11 < 6.16 |
| Linux | Linux | 6.6.103 < 6.6.109 |
| Linux | Linux | 6.12.43 < 6.12.50 |
| Linux | Linux | 6.16.2 < 6.16.10 |
| linux | linux_kernel | 6.6.103 – 6.6.109 |
| linux | linux_kernel | 6.17 |
| linux | linux_kernel | 6.17 |
| linux | linux_kernel | 6.17 |
| linux | linux_kernel | 6.17 |
| linux | linux_kernel | 6.17 |
| linux | linux_kernel | 6.17 |
| linux | linux_kernel | 6.17 |