CVE-2022-48636
Last modified
CVE-2022-48636 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: s390/dasd: fix Oops in dasd_alias_get_start_dev due to missing pavgroup Fix Oops in dasd_alias_get_start_dev() function caused by the pavgroup pointer being NULL. The pavgroup pointer is checked on the entrance of the function but without the lcu->lock being held. Therefore there is a race window between dasd_alias_get_start_dev() and _lcu_update() which sets pavgroup to NULL with the lcu->lock held. Fix by checking the pavgroup pointer with lcu->lock held.. EPSS estimates a 0.23% chance of exploitation in the next 30 days.
Description
In the Linux kernel, the following vulnerability has been resolved: s390/dasd: fix Oops in dasd_alias_get_start_dev due to missing pavgroup Fix Oops in dasd_alias_get_start_dev() function caused by the pavgroup pointer being NULL. The pavgroup pointer is checked on the entrance of the function but without the lcu->lock being held. Therefore there is a race window between dasd_alias_get_start_dev() and _lcu_update() which sets pavgroup to NULL with the lcu->lock held. Fix by checking the pavgroup pointer with lcu->lock held.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Linux | Linux Kernel | >= 2.6.25, < 4.9.330 | — |
| Linux | Linux Kernel | >= 4.10, < 4.14.295 | — |
| Linux | Linux Kernel | >= 4.15, < 4.19.260 | — |
| Linux | Linux Kernel | >= 4.20, < 5.4.215 | — |
| Linux | Linux Kernel | >= 5.5, < 5.10.146 | — |
| Linux | Linux Kernel | >= 5.11, < 5.15.71 | — |
| Linux | Linux Kernel | >= 5.16, < 5.19.12 | — |
| Linux | Linux Kernel | 6.0 | Rc1 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2022-48636?
How severe is CVE-2022-48636?
How do I fix CVE-2022-48636?
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 2022
- CVE-2022-48630In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2022-48631In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2022-48632In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2022-48633In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2022-48634In the Linux kernel, the following vulnerability has been re…5.3
- CVE-2022-48635In the Linux kernel, the following vulnerability has been re…6.2
- CVE-2022-48637In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2022-48638In the Linux kernel, the following vulnerability has been re…5.3
- CVE-2022-48639In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2022-4864Argument Injection in GitHub repository froxlor/froxlor prio…5.4
- CVE-2022-48640In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2022-48641In the Linux kernel, the following vulnerability has been re…5.5
Are you affected by CVE-2022-48636?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST