AZL-93930
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-93930.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/AZL-93930
- Upstream
- Published
- 2026-07-25T10:17:25Z
- Modified
- 2026-08-28T17:47:46Z
- Summary
- CVE-2026-64413 affecting package kernel for versions less than 6.6.145.2-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
netfilter: ebtables: zero chainstack array
sashiko reports: looking at ebtables table translation, could a sparse cpu_possible_mask lead to an uninitialized pointer free?
If cpu_possible_mask is sparse (for example, CPU 0 and CPU 2 are possible, but CPU 1 is not), the allocation loop skips CPU 1. If vmalloc_node() fails at CPU 2, the cleanup loop will blindly decrement and call vfree() on newinfo->chainstack[1].
Not a real-world bug, such allocation isn't expected to fail in the first place.
- References