CVEvulnerability
CVE-2022-47929
5.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2023-01-17
- Last modified
- 2026-10-14
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-476
Description
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.
Affected configurations
• linux linux kernel (< 6.1.6)
• debian debian linux 11.0
Related
Weakness · CWE (1)
- CWE-476 NULL Pointer Dereference weakness
References
- 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 lists.debian.org
- https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html lists.debian.org
- 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 lists.debian.org
- https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html lists.debian.org
- 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://cert-portal.siemens.com/productcert/html/ssa-769027.html cert-portal.siemens.com
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html cert-portal.siemens.com