CVE-2026-53355
Last modified
CVE-2026-53355 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: net: rds: clear i_sends on setup unwind The RDS IB connection teardown path is written so it can run during partial startup and on repeated shutdown attempts. It uses NULL pointers to distinguish resources that are still owned from resources that have already been released. When rds_ib_setup_qp() fails after allocating i_sends but before allocating i_recvs, the sends_out path frees i_sends without clearing the pointer. EPSS estimates a 0.40% chance of exploitation in the next 30 days.
Description
In the Linux kernel, the following vulnerability has been resolved: net: rds: clear i_sends on setup unwind The RDS IB connection teardown path is written so it can run during partial startup and on repeated shutdown attempts. It uses NULL pointers to distinguish resources that are still owned from resources that have already been released. When rds_ib_setup_qp() fails after allocating i_sends but before allocating i_recvs, the sends_out path frees i_sends without clearing the pointer. A later shutdown pass can still treat that stale pointer as a live send ring allocation. Clear i_sends after vfree() in the error unwind path so the existing shutdown logic continues to use the correct ownership state.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Linux | Linux Kernel | >= 3.18.74, < 3.19 | — |
| Linux | Linux Kernel | >= 4.1.46, < 4.2 | — |
| Linux | Linux Kernel | >= 4.4.91, < 4.5 | — |
| Linux | Linux Kernel | >= 4.9.54, < 4.10 | — |
| Linux | Linux Kernel | >= 4.11.1, < 5.10.259 | — |
| Linux | Linux Kernel | >= 5.11, < 5.15.210 | — |
| Linux | Linux Kernel | >= 5.16, < 6.1.176 | — |
| Linux | Linux Kernel | >= 6.2, < 6.6.143 | — |
| Linux | Linux Kernel | >= 6.7, < 6.12.94 | — |
| Linux | Linux Kernel | >= 6.13, < 6.18.36 | — |
| Linux | Linux Kernel | >= 6.19, < 7.0.13 | — |
| Linux | Linux Kernel | 4.11 | — |
| Linux | Linux Kernel | 7.1 | Rc1 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-53355?
How severe is CVE-2026-53355?
How do I fix CVE-2026-53355?
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 2026
- CVE-2026-5335The Magic Export & Import WordPress plugin before 1.2.0 stor…5.3
- CVE-2026-53350In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2026-53351In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2026-53352In the Linux kernel, the following vulnerability has been re…4.7
- CVE-2026-53353In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2026-53354In the Linux kernel, the following vulnerability has been re…8.8
- CVE-2026-53356In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2026-53357In the Linux kernel, the following vulnerability has been re…8
- CVE-2026-53358In the Linux kernel, the following vulnerability has been re…8.8
- CVE-2026-53359In the Linux kernel, the following vulnerability has been re…8.8
- CVE-2026-53360In the Linux kernel, the following vulnerability has been re…8.8
- CVE-2026-53361In the Linux kernel, the following vulnerability has been re…7.1
Are you affected by CVE-2026-53355?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST