CVE-2026-53355
net: rds: clear i_sends on setup unwind
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.
INFO
Published Date :
July 1, 2026, 2:16 p.m.
Last Modified :
July 22, 2026, 7:14 p.m.
Remotely Exploit :
Yes !
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
Solution
- Apply the Linux kernel patch for net: rds: clear i_sends.
- Update the Linux kernel to the fixed version.
- Clear i_sends after vfree() in the error unwind path.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-53355.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-53355 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-53355
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-53355 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-53355 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Jul. 22, 2026
Action Type Old Value New Value Added CWE CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:4.11:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:4.11:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:4.11:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:4.11:rc6:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:4.11:rc7:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:4.11:rc8:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:4.11:-:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.1.46 up to (excluding) 4.2 *cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.176 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.143 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.210 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.18.36 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.94 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 7.0.13 *cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc6:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.11.1 up to (excluding) 5.10.259 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.18.74 up to (excluding) 3.19 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.4.91 up to (excluding) 4.5 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.9.54 up to (excluding) 4.10 Added Reference Type kernel.org: https://git.kernel.org/stable/c/1d4ec754ee3871f7e3670c67bb0298c9c5760926 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/20cf0fb715c41111469577e85e35d15f099473e0 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/27040bbca289a704eafcacca167d310c6ce2b1bc Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/29d940026dce39e3018dab6f67c9427249321270 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/2c5e5e4a5970c41f16e3ad801a78719ed5d5c71b Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/66cccec111421a10efdc2c74499d15b93e7acae5 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/e7cf30aa5f1fc6c2a86df65df8b731df20e44d79 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/f16ad421a4e3e7db2d14bdf3b16f583bc4f3b30a Types: Patch -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 18, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 01, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3b12f73a5c2977153f28a224392fd4729b50d1dc', 'lessThan': '66cccec111421a10efdc2c74499d15b93e7acae5', 'versionType': 'git'}, {'status': 'affected', 'version': '3b12f73a5c2977153f28a224392fd4729b50d1dc', 'lessThan': '2c5e5e4a5970c41f16e3ad801a78719ed5d5c71b', 'versionType': 'git'}, {'status': 'affected', 'version': '3b12f73a5c2977153f28a224392fd4729b50d1dc', 'lessThan': '29d940026dce39e3018dab6f67c9427249321270', 'versionType': 'git'}, {'status': 'affected', 'version': '3b12f73a5c2977153f28a224392fd4729b50d1dc', 'lessThan': 'e7cf30aa5f1fc6c2a86df65df8b731df20e44d79', 'versionType': 'git'}, {'status': 'affected', 'version': '3b12f73a5c2977153f28a224392fd4729b50d1dc', 'lessThan': 'f16ad421a4e3e7db2d14bdf3b16f583bc4f3b30a', 'versionType': 'git'}, {'status': 'affected', 'version': '3b12f73a5c2977153f28a224392fd4729b50d1dc', 'lessThan': '1d4ec754ee3871f7e3670c67bb0298c9c5760926', 'versionType': 'git'}, {'status': 'affected', 'version': '3b12f73a5c2977153f28a224392fd4729b50d1dc', 'lessThan': '27040bbca289a704eafcacca167d310c6ce2b1bc', 'versionType': 'git'}, {'status': 'affected', 'version': '3b12f73a5c2977153f28a224392fd4729b50d1dc', 'lessThan': '20cf0fb715c41111469577e85e35d15f099473e0', 'versionType': 'git'}, {'status': 'affected', 'version': '75a12b2fa80c2e4cc40a9f9305f95899850b7426', 'versionType': 'git'}, {'status': 'affected', 'version': 'c9459693fae9a1bf3f51f3db98617f694112e897', 'versionType': 'git'}, {'status': 'affected', 'version': '13099ee9c7d54b0a25f6c8397675aed99e9cfa45', 'versionType': 'git'}, {'status': 'affected', 'version': '5c6712ab4efb6cf60e16719ab6bcaface9cc268c', 'versionType': 'git'}, {'status': 'affected', 'version': '3.18.74', 'lessThan': '3.19', 'versionType': 'semver'}, {'status': 'affected', 'version': '4.1.46', 'lessThan': '4.2', 'versionType': 'semver'}, {'status': 'affected', 'version': '4.4.91', 'lessThan': '4.5', 'versionType': 'semver'}, {'status': 'affected', 'version': '4.9.54', 'lessThan': '4.10', 'versionType': 'semver'}], 'programFiles': ['net/rds/ib_cm.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4.11'}, {'status': 'unaffected', 'version': '0', 'lessThan': '4.11', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.259', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.210', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.176', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.143', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.94', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.36', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.13', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['net/rds/ib_cm.c'], 'defaultStatus': 'affected'}] Added 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. Added Reference https://git.kernel.org/stable/c/1d4ec754ee3871f7e3670c67bb0298c9c5760926 Added Reference https://git.kernel.org/stable/c/20cf0fb715c41111469577e85e35d15f099473e0 Added Reference https://git.kernel.org/stable/c/27040bbca289a704eafcacca167d310c6ce2b1bc Added Reference https://git.kernel.org/stable/c/29d940026dce39e3018dab6f67c9427249321270 Added Reference https://git.kernel.org/stable/c/2c5e5e4a5970c41f16e3ad801a78719ed5d5c71b Added Reference https://git.kernel.org/stable/c/66cccec111421a10efdc2c74499d15b93e7acae5 Added Reference https://git.kernel.org/stable/c/e7cf30aa5f1fc6c2a86df65df8b731df20e44d79 Added Reference https://git.kernel.org/stable/c/f16ad421a4e3e7db2d14bdf3b16f583bc4f3b30a