CVE-2026-98017
- Source
- https://cve.org/CVERecord?id=CVE-2026-98017
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98017.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-98017
- Downstream
- Published
- 2026-09-25T10:23:39Z
- Modified
- 2026-09-26T03:48:31Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- net/sched: defer qdisc freeing after failed creation
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
net/sched: defer qdisc freeing after failed creation
An RTM_NEWQDISC request can make clsact bind a populated shared ingress block during ->init(), publishing an embedded mini_Qdisc to lockless readers. If the same request has an invalid TCA_RATE, estimator setup fails after ->init(); the unwind removes the pointer but synchronously frees its containing qdisc while tc_run() may still hold it.
Retire failed qdiscs through the same RCU helper as normal destruction. Inline the synchronous free into the callback now that no direct callers remain.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98017.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/156a3bab69744e9225bb9eff8c5cc53da18d5a2e
- https://git.kernel.org/stable/c/20bf6fa34b345333971bd4464a322cce87b83f4e
- https://git.kernel.org/stable/c/5bfe927c5b4b290fad529186218c728589b4b101
- https://git.kernel.org/stable/c/e6662f2100f8d33b0f4d0047c219efd6bba186ea
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98017.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-98017
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced51ab2994c387c80b45caf8b8067b3f3b97771d25Fixed20bf6fa34b345333971bd4464a322cce87b83f4eFixed156a3bab69744e9225bb9eff8c5cc53da18d5a2eFixed5bfe927c5b4b290fad529186218c728589b4b101Fixede6662f2100f8d33b0f4d0047c219efd6bba186ea