Bug 2168246 (CVE-2022-47929) - CVE-2022-47929 kernel: NULL pointer dereference in traffic control subsystem
Summary: CVE-2022-47929 kernel: NULL pointer dereference in traffic control subsystem
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2022-47929
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2162634 2168280 2168281 2168282 2168283
Blocks: 2161862
TreeView+ depends on / blocked
 
Reported: 2023-02-08 14:59 UTC by Rohit Keshri
Modified: 2024-02-13 01:11 UTC (History)
38 users (show)

Fixed In Version: kernel 6.2-rc4
Doc Type: If docs needed, set a value
Doc Text:
A NULL pointer dereference flaw was found in qdisc_graft in net/sched/sch_api.c in the Linux kernel. This issue may allow a local unprivileged user to trigger a denial of service if the alloc_workqueue function return is not validated in time of failure, resulting in a system crash or leaked internal kernel information.
Clone Of:
Environment:
Last Closed: 2023-05-16 22:54:31 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2023:2148 0 None None None 2023-05-09 07:12:59 UTC
Red Hat Product Errata RHSA-2023:2458 0 None None None 2023-05-09 07:51:28 UTC
Red Hat Product Errata RHSA-2023:2736 0 None None None 2023-05-16 08:06:17 UTC
Red Hat Product Errata RHSA-2023:2951 0 None None None 2023-05-16 08:35:01 UTC
Red Hat Product Errata RHSA-2024:0412 0 None None None 2024-01-24 16:43:13 UTC

Description Rohit Keshri 2023-02-08 14:59:15 UTC 
A NULL pointer dereference flaw may occur in qdisc_graft in net/sched/sch_api.c in the Linux kernel. In this flaw a local unprivileged user mas trigger a denial of service if the alloc_workqueue function return is not validated in time of failure. This flaw could allow an attacker to crash the system or leak internal kernel information.

Reference:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=96398560f26aa07e8f2969d73c8197e6a6d10407
Comment 9 errata-xmlrpc 2023-05-09 07:12:55 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2023:2148 https://access.redhat.com/errata/RHSA-2023:2148
Comment 10 errata-xmlrpc 2023-05-09 07:51:25 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2023:2458 https://access.redhat.com/errata/RHSA-2023:2458
Comment 11 errata-xmlrpc 2023-05-16 08:06:13 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2023:2736 https://access.redhat.com/errata/RHSA-2023:2736
Comment 12 errata-xmlrpc 2023-05-16 08:34:57 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2023:2951 https://access.redhat.com/errata/RHSA-2023:2951
Comment 13 Product Security DevOps Team 2023-05-16 22:54:28 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2022-47929
Comment 16 errata-xmlrpc 2024-01-24 16:43:08 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Extended Update Support

Via RHSA-2024:0412 https://access.redhat.com/errata/RHSA-2024:0412
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