Vulnerability Details CVE-2025-39965
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 1.1%
CVSS Severity
CVSS v3 Score 7.8
References
Products affected by CVE-2025-39965
-
cpe:2.3:o:linux:linux_kernel:6.12.43
-
cpe:2.3:o:linux:linux_kernel:6.12.44
-
cpe:2.3:o:linux:linux_kernel:6.12.45
-
cpe:2.3:o:linux:linux_kernel:6.12.46
-
cpe:2.3:o:linux:linux_kernel:6.12.47
-
cpe:2.3:o:linux:linux_kernel:6.12.48
-
cpe:2.3:o:linux:linux_kernel:6.12.49
-
cpe:2.3:o:linux:linux_kernel:6.15.11
-
cpe:2.3:o:linux:linux_kernel:6.16.2
-
cpe:2.3:o:linux:linux_kernel:6.16.3
-
cpe:2.3:o:linux:linux_kernel:6.16.4
-
cpe:2.3:o:linux:linux_kernel:6.16.5
-
cpe:2.3:o:linux:linux_kernel:6.16.6
-
cpe:2.3:o:linux:linux_kernel:6.16.7
-
cpe:2.3:o:linux:linux_kernel:6.16.8
-
cpe:2.3:o:linux:linux_kernel:6.16.9
-
cpe:2.3:o:linux:linux_kernel:6.17
-
cpe:2.3:o:linux:linux_kernel:6.6.103
-
cpe:2.3:o:linux:linux_kernel:6.6.104
-
cpe:2.3:o:linux:linux_kernel:6.6.105
-
cpe:2.3:o:linux:linux_kernel:6.6.106
-
cpe:2.3:o:linux:linux_kernel:6.6.107
-
cpe:2.3:o:linux:linux_kernel:6.6.108