Bug 2502476 (CVE-2026-64035) - CVE-2026-64035 kernel: igc: set tx buffer type for SMD frames
Summary: CVE-2026-64035 kernel: igc: set tx buffer type for SMD frames
Keywords:
Status: NEW
Alias: CVE-2026-64035
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-19 17:01 UTC by OSIDB Bzimport
Modified: 2026-10-08 10:51 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:77689 0 None None None 2026-10-08 10:51:54 UTC
Red Hat Product Errata RHSA-2026:77690 0 None None None 2026-10-08 09:52:24 UTC

Description OSIDB Bzimport 2026-07-19 17:01:26 UTC 
In the Linux kernel, the following vulnerability has been resolved:

igc: set tx buffer type for SMD frames

Sashiko pointed out that igc_fpe_init_smd_frame() initializes
igc_tx_buffer fields for an SMD skb, but does not set the buffer type:
https://sashiko.dev/#/patchset/20260415025226.114115-1-kohei%40enjuk.jp

Since igc_tx_buffer entries are reused, a stale XDP or XSK type can
remain and make TX completion use the wrong cleanup path.

Set the buffer type to IGC_TX_BUFFER_TYPE_SKB.
Comment 1 TEJ RATHI 2026-07-21 07:09:04 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026071905-CVE-2026-64035-207f@gregkh/T
Comment 5 Jon Orris 2026-10-08 09:52:23 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:77690 https://access.redhat.com/errata/RHSA-2026:77690
Comment 6 Jon Orris 2026-10-08 10:51:54 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:77689 https://access.redhat.com/errata/RHSA-2026:77689
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