CVE-2022-47929

In the Linux kernel before 6.1.6, a NULL pointer dereference bug in the traffic control subsystem allows an unprivileged user to trigger a denial of service (system crash) via a crafted traffic control configuration that is set up with "tc qdisc" and "tc class" commands. This affects qdisc_graft in net/sched/sch_api.c.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.6	Mailing List Patch Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=96398560f26aa07e8f2969d73c8197e6a6d10407	Patch Vendor Advisory
https://lists.debian.org/debian-lts-announce/2023/03/msg00000.html
https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
https://tldp.org/HOWTO/Traffic-Control-HOWTO/components.html	Third Party Advisory
https://www.debian.org/security/2023/dsa-5324	Third Party Advisory
https://www.spinics.net/lists/netdev/msg555705.html	Exploit Mailing List Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.6	Mailing List Patch Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=96398560f26aa07e8f2969d73c8197e6a6d10407	Patch Vendor Advisory
https://lists.debian.org/debian-lts-announce/2023/03/msg00000.html
https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
https://tldp.org/HOWTO/Traffic-Control-HOWTO/components.html	Third Party Advisory
https://www.debian.org/security/2023/dsa-5324	Third Party Advisory
https://www.spinics.net/lists/netdev/msg555705.html	Exploit Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2023-01-17 21:15

Updated : 2025-04-04 18:15

NVD link : CVE-2022-47929

Mitre link : CVE-2022-47929

CVE.ORG link : CVE-2022-47929

JSON object : View

Products Affected

linux

linux_kernel

debian

debian_linux

CWE

CWE-476

NULL Pointer Dereference

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