CVE-2026-53355 Details
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.
A vulnerability in the Linux kernel's Reliable Datagram Sockets (RDS) over InfiniBand (IB) implementation can lead to a NULL pointer dereference. This issue arises during the connection teardown process, which can occur during partial startup or repeated shutdown attempts. The problem stems from the way resources are managed; NULL pointers are used to indicate whether resources are still owned or have been released. When the function 'rds_ib_setup_qp()' fails after allocating send resources but before receiving resources, the sends are freed without clearing the corresponding pointer. Consequently, a later shutdown can mistakenly treat this stale pointer as a valid send ring allocation. To address this, the 'i_sends' pointer should be cleared after freeing the resources in the error handling phase, ensuring that the shutdown logic accurately reflects the current state of resource ownership.
The vulnerability has been addressed in the Linux kernel. Users should upgrade to the latest version where this issue has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/1d4ec754ee3871f7e3670c67bb0298c9c5760926 | kernel.org | Patch |
| https://git.kernel.org/stable/c/20cf0fb715c41111469577e85e35d15f099473e0 | kernel.org | Patch |
| https://git.kernel.org/stable/c/27040bbca289a704eafcacca167d310c6ce2b1bc | kernel.org | Patch |
| https://git.kernel.org/stable/c/29d940026dce39e3018dab6f67c9427249321270 | kernel.org | Patch |
| https://git.kernel.org/stable/c/2c5e5e4a5970c41f16e3ad801a78719ed5d5c71b | kernel.org | Patch |
| https://git.kernel.org/stable/c/66cccec111421a10efdc2c74499d15b93e7acae5 | kernel.org | Patch |
| https://git.kernel.org/stable/c/e7cf30aa5f1fc6c2a86df65df8b731df20e44d79 | kernel.org | Patch |
| https://git.kernel.org/stable/c/f16ad421a4e3e7db2d14bdf3b16f583bc4f3b30a | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-476 | NULL Pointer Dereference | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 3.18.74, < 3.19 >= 4.1.46, < 4.2 >= 4.4.91, < 4.5 >= 4.9.54, < 4.10 >= 4.11.1, < 5.10.259 >= 5.11, < 5.15.210 >= 5.16, < 6.1.176 >= 6.2, < 6.6.143 >= 6.7, < 6.12.94 >= 6.13, < 6.18.36 >= 6.19, < 7.0.13 4.11 - 4.11 rc3 4.11 rc4 4.11 rc5 4.11 rc6 4.11 rc7 4.11 rc8 7.1 rc1 7.1 rc2 7.1 rc3 7.1 rc4 7.1 rc5 7.1 rc6 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 22, 2026 | Initial Analysis | [email protected] |
| Jul 18, 2026 | CVE Modified | kernel.org |
| Jul 1, 2026 | New CVE Received | kernel.org |