Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-79980.json
JSON Data
https://api.osv.dev/v1/vulns/AZL-79980
Upstream
Published
2026-03-18T11:16:15Z
Modified
2026-08-28T17:48:02.645261606Z
Summary
CVE-2026-23242 affecting package kernel for versions less than 6.6.130.1-1
Details

In the Linux kernel, the following vulnerability has been resolved:

RDMA/siw: Fix potential NULL pointer dereference in header processing

If siwgethdr() returns -EINVAL before setrxfpducontext(), qp->rxfpdu can be NULL. The error path in siwtcprxdata() dereferences qp->rxfpdu->moreddpsegs without checking, which may lead to a NULL pointer deref. Only check moreddpsegs when rx_fpdu is present.

KASAN splat: [ 101.384271] KASAN: null-ptr-deref in range [0x00000000000000c0-0x00000000000000c7] [ 101.385869] RIP: 0010:siwtcprx_data+0x13ad/0x1e50

References

Affected packages

Azure Linux:3 / kernel

Package

Name
kernel
Purl
pkg:rpm/azure-linux/kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.6.130.1-1

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-79980.json"