CVE-2021-47003
Last modified
CVE-2021-47003 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Fix potential null dereference on pointer status There are calls to idxd_cmd_exec that pass a null status pointer however a recent commit has added an assignment to *status that can end up with a null pointer dereference. The function expects a null status pointer sometimes as there is a later assignment to *status where status is first null checked. EPSS estimates a 0.24% chance of exploitation in the next 30 days.
Description
In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Fix potential null dereference on pointer status There are calls to idxd_cmd_exec that pass a null status pointer however a recent commit has added an assignment to *status that can end up with a null pointer dereference. The function expects a null status pointer sometimes as there is a later assignment to *status where status is first null checked. Fix the issue by null checking status before making the assignment. Addresses-Coverity: ("Explicit null dereferenced")
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.10.17, < 5.10.38 |
| Linux | Linux Kernel | >= 5.11, < 5.11.22 |
| Linux | Linux Kernel | >= 5.12, < 5.12.5 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2021-47003?
How severe is CVE-2021-47003?
How do I fix CVE-2021-47003?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2021
- CVE-2021-46997In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2021-46998In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2021-46999In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2021-47000In the Linux kernel, the following vulnerability has been re…3.3
- CVE-2021-47001In the Linux kernel, the following vulnerability has been re…4.7
- CVE-2021-47002In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2021-47004In the Linux kernel, the following vulnerability has been re…7.1
- CVE-2021-47005In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2021-47006In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2021-47007In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2021-47008In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2021-47009In the Linux kernel, the following vulnerability has been re…5.5
Are you affected by CVE-2021-47003?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST