CVE-2026-64018

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Source
https://cve.org/CVERecord?id=CVE-2026-64018
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-64018.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-64018
Downstream
Related
Published
2026-07-19T15:39:12Z
Modified
2026-09-05T11:11:34Z
Severity
  • 9.3 (Critical) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
Summary
net: mana: validate rx_req_idx to prevent out-of-bounds array access
Details

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

net: mana: validate rx_req_idx to prevent out-of-bounds array access

In mana_hwc_rx_event_handler(), rx_req_idx is derived from sge->address in DMA-coherent memory. In Confidential VMs (SEV-SNP/TDX), this memory is shared unencrypted and HW can modify WQE contents at any time. No bounds check exists on rx_req_idx, which can lead to an out-of-bounds access into reqs[].

Add bounds check on rx_req_idx in mana_hwc_rx_event_handler() before using it to index the reqs[] array.

Database specific 
{
    "cna_assigner":  "Linux",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64018.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f
Fixed
5ddc715324badd7f2641bc177db1d027b402adae
Fixed
ff1d5af207bcea857d45fe81505f1bc4b29eaef0
Fixed
01f7f893d5e1baae995beeb86cd0f3e6bb2a3b01
Fixed
763a372d344fb12fae566d36ddb46e92454ad58c
Fixed
fa627a5eaa83fc0261f44ef3769693b886ca6e27
Fixed
355e9f2b2a7887ca38100127989af3e422ba71d0
Fixed
b809d0409991b75a6cff846a5ac27c3062953f84

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-64018.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.13.0
Fixed
5.15.209
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.175
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.142
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.92
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.34
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.0.11

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-64018.json"