Bug 2479492 (CVE-2026-46331) - CVE-2026-46331 kernel: net/sched: act_pedit: extend the writable skb range per key
Summary: CVE-2026-46331 kernel: net/sched: act_pedit: extend the writable skb range pe...
Keywords:
Status: NEW
Alias: CVE-2026-46331
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-18 06:19 UTC by OSIDB Bzimport
Modified: 2026-06-30 17:45 UTC (History)
3 users (show)

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

Attachments (Terms of Use)


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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:27288 0 None None None 2026-06-19 23:22:00 UTC
Red Hat Product Errata RHSA-2026:27353 0 None None None 2026-06-19 16:51:16 UTC
Red Hat Product Errata RHSA-2026:27354 0 None None None 2026-06-19 16:29:44 UTC
Red Hat Product Errata RHSA-2026:27355 0 None None None 2026-06-19 16:48:48 UTC
Red Hat Product Errata RHSA-2026:27704 0 None None None 2026-06-22 02:02:29 UTC
Red Hat Product Errata RHSA-2026:27705 0 None None None 2026-06-22 03:44:46 UTC
Red Hat Product Errata RHSA-2026:27706 0 None None None 2026-06-22 01:35:08 UTC
Red Hat Product Errata RHSA-2026:27707 0 None None None 2026-06-22 01:53:50 UTC
Red Hat Product Errata RHSA-2026:27708 0 None None None 2026-06-22 05:56:03 UTC
Red Hat Product Errata RHSA-2026:27709 0 None None None 2026-06-22 01:32:37 UTC
Red Hat Product Errata RHSA-2026:27713 0 None None None 2026-06-22 05:01:26 UTC
Red Hat Product Errata RHSA-2026:27731 0 None None None 2026-06-22 05:04:17 UTC
Red Hat Product Errata RHSA-2026:27789 0 None None None 2026-06-22 08:29:16 UTC
Red Hat Product Errata RHSA-2026:29794 0 None None None 2026-06-30 15:49:31 UTC
Red Hat Product Errata RHSA-2026:29799 0 None None None 2026-06-30 13:45:27 UTC
Red Hat Product Errata RHSA-2026:29833 0 None None None 2026-06-30 11:06:31 UTC
Red Hat Product Errata RHSA-2026:33219 0 None None None 2026-06-29 19:39:20 UTC
Red Hat Product Errata RHSA-2026:33220 0 None None None 2026-06-29 19:43:19 UTC
Red Hat Product Errata RHSA-2026:33221 0 None None None 2026-06-29 19:24:49 UTC
Red Hat Product Errata RHSA-2026:33222 0 None None None 2026-06-29 19:39:30 UTC
Red Hat Product Errata RHSA-2026:33223 0 None None None 2026-06-29 19:42:06 UTC
Red Hat Product Errata RHSA-2026:33224 0 None None None 2026-06-29 19:43:34 UTC
Red Hat Product Errata RHSA-2026:33225 0 None None None 2026-06-29 22:42:08 UTC
Red Hat Product Errata RHSA-2026:33666 0 None None None 2026-06-30 17:45:16 UTC

Description OSIDB Bzimport 2026-05-18 06:19:30 UTC 
tcf_pedit_act() builds a rough writable prefix from tcfp_off_max_hint
before the action mutates any packet bytes.

Since 6c02568fd1ae, TCP and UDP keys recompute their L4 base from the
current L3 header inside the key loop. An earlier key can therefore
change a later header-relative base and make the final store land
outside the initially ensured prefix, where it can fall back to
skb_store_bits() on skb frags.

Keep the initial estimate as a fast path, but grow the ensured writable
range from each key's final computed write offset before loading or
storing the edited word.
Comment 5 errata-xmlrpc 2026-06-19 16:29:43 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:27354 https://access.redhat.com/errata/RHSA-2026:27354
Comment 6 errata-xmlrpc 2026-06-19 16:48:47 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.8 Telecommunications Update Service

Via RHSA-2026:27355 https://access.redhat.com/errata/RHSA-2026:27355
Comment 7 errata-xmlrpc 2026-06-19 16:51:15 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:27353 https://access.redhat.com/errata/RHSA-2026:27353
Comment 8 errata-xmlrpc 2026-06-19 23:21:59 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:27288 https://access.redhat.com/errata/RHSA-2026:27288
Comment 9 errata-xmlrpc 2026-06-22 01:32:36 UTC 
This issue has been addressed in the following products:

  NVIDIA for RHEL 10

Via RHSA-2026:27709 https://access.redhat.com/errata/RHSA-2026:27709
Comment 10 errata-xmlrpc 2026-06-22 01:35:07 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:27706 https://access.redhat.com/errata/RHSA-2026:27706
Comment 11 errata-xmlrpc 2026-06-22 01:53:49 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On

Via RHSA-2026:27707 https://access.redhat.com/errata/RHSA-2026:27707
Comment 12 errata-xmlrpc 2026-06-22 02:02:28 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On

Via RHSA-2026:27704 https://access.redhat.com/errata/RHSA-2026:27704
Comment 13 errata-xmlrpc 2026-06-22 03:44:45 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:27705 https://access.redhat.com/errata/RHSA-2026:27705
Comment 14 errata-xmlrpc 2026-06-22 05:01:25 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Via RHSA-2026:27713 https://access.redhat.com/errata/RHSA-2026:27713
Comment 15 errata-xmlrpc 2026-06-22 05:04:16 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:27731 https://access.redhat.com/errata/RHSA-2026:27731
Comment 16 errata-xmlrpc 2026-06-22 05:56:02 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:27708 https://access.redhat.com/errata/RHSA-2026:27708
Comment 17 errata-xmlrpc 2026-06-22 08:29:15 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:27789 https://access.redhat.com/errata/RHSA-2026:27789
Comment 19 errata-xmlrpc 2026-06-29 19:24:48 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:33221 https://access.redhat.com/errata/RHSA-2026:33221
Comment 20 errata-xmlrpc 2026-06-29 19:39:18 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions

Via RHSA-2026:33219 https://access.redhat.com/errata/RHSA-2026:33219
Comment 21 errata-xmlrpc 2026-06-29 19:39:28 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Via RHSA-2026:33222 https://access.redhat.com/errata/RHSA-2026:33222
Comment 22 errata-xmlrpc 2026-06-29 19:42:05 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:33223 https://access.redhat.com/errata/RHSA-2026:33223
Comment 23 errata-xmlrpc 2026-06-29 19:43:18 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:33220 https://access.redhat.com/errata/RHSA-2026:33220
Comment 24 errata-xmlrpc 2026-06-29 19:43:33 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:33224 https://access.redhat.com/errata/RHSA-2026:33224
Comment 25 errata-xmlrpc 2026-06-29 22:42:07 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:33225 https://access.redhat.com/errata/RHSA-2026:33225
Comment 26 errata-xmlrpc 2026-06-30 11:06:30 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.21

Via RHSA-2026:29833 https://access.redhat.com/errata/RHSA-2026:29833
Comment 27 errata-xmlrpc 2026-06-30 13:45:25 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.20

Via RHSA-2026:29799 https://access.redhat.com/errata/RHSA-2026:29799
Comment 28 errata-xmlrpc 2026-06-30 15:49:30 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.22

Via RHSA-2026:29794 https://access.redhat.com/errata/RHSA-2026:29794
Comment 29 errata-xmlrpc 2026-06-30 17:45:15 UTC 
This issue has been addressed in the following products:

  NVIDIA for RHEL 10

Via RHSA-2026:33666 https://access.redhat.com/errata/RHSA-2026:33666
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