CVE-2026-45857
scsi: csiostor: Fix dereference of null pointer rn
Description
In the Linux kernel, the following vulnerability has been resolved: scsi: csiostor: Fix dereference of null pointer rn The error exit path when rn is NULL ends up deferencing the null pointer rn via the use of the macro CSIO_INC_STATS. Fix this by adding a new error return path label after the use of the macro to avoid the deference.
INFO
Published Date :
May 27, 2026, 2:16 p.m.
Last Modified :
June 25, 2026, 9:07 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update the Linux kernel to the latest version.
- Apply the specific patch for csiostor null pointer dereference.
- Recompile and install the kernel if necessary.
- Reboot the system after updating the kernel.
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-2026-45857.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-45857 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-2026-45857
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-2026-45857 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-45857 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.
-
Initial Analysis by [email protected]
Jun. 25, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.18.14 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 6.19.4 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.128 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.75 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.202 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.165 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.8 up to (excluding) 5.10.252 Added Reference Type kernel.org: https://git.kernel.org/stable/c/16ccbfddcb32365138c806cf572e69b42a193c5c Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/1982257570b84dc33753d536dd969fd357a014e9 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/25ab5e97d3c5f3ed594b4a65d1cc99dc24756681 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/25d623f0d77c11a256a54e860d00c239aa9a2583 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/3bbbab7b6949c76df64210348adbefedaabbf549 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/44ef9f81392de885883f73b9f5c43936a82ae9d7 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/526ea3c0ccd495b0079db3e28fdddd51c1bf01f7 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/6037124dbf675fbd0a6248aaf04cf07387b8c323 Types: Patch -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 17, 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': 'a3667aaed5698b84bad2f1b3f71adc86499f4bc6', 'lessThan': '16ccbfddcb32365138c806cf572e69b42a193c5c', 'versionType': 'git'}, {'status': 'affected', 'version': 'a3667aaed5698b84bad2f1b3f71adc86499f4bc6', 'lessThan': '44ef9f81392de885883f73b9f5c43936a82ae9d7', 'versionType': 'git'}, {'status': 'affected', 'version': 'a3667aaed5698b84bad2f1b3f71adc86499f4bc6', 'lessThan': '526ea3c0ccd495b0079db3e28fdddd51c1bf01f7', 'versionType': 'git'}, {'status': 'affected', 'version': 'a3667aaed5698b84bad2f1b3f71adc86499f4bc6', 'lessThan': '25d623f0d77c11a256a54e860d00c239aa9a2583', 'versionType': 'git'}, {'status': 'affected', 'version': 'a3667aaed5698b84bad2f1b3f71adc86499f4bc6', 'lessThan': '6037124dbf675fbd0a6248aaf04cf07387b8c323', 'versionType': 'git'}, {'status': 'affected', 'version': 'a3667aaed5698b84bad2f1b3f71adc86499f4bc6', 'lessThan': '25ab5e97d3c5f3ed594b4a65d1cc99dc24756681', 'versionType': 'git'}, {'status': 'affected', 'version': 'a3667aaed5698b84bad2f1b3f71adc86499f4bc6', 'lessThan': '3bbbab7b6949c76df64210348adbefedaabbf549', 'versionType': 'git'}, {'status': 'affected', 'version': 'a3667aaed5698b84bad2f1b3f71adc86499f4bc6', 'lessThan': '1982257570b84dc33753d536dd969fd357a014e9', 'versionType': 'git'}], 'programFiles': ['drivers/scsi/csiostor/csio_scsi.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.8'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.8', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.252', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.202', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.165', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.128', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.75', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.14', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '6.19.4', 'versionType': 'semver', 'lessThanOrEqual': '6.19.*'}, {'status': 'unaffected', 'version': '7.0', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/scsi/csiostor/csio_scsi.c'], 'defaultStatus': 'affected'}] -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 27, 2026
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: scsi: csiostor: Fix dereference of null pointer rn The error exit path when rn is NULL ends up deferencing the null pointer rn via the use of the macro CSIO_INC_STATS. Fix this by adding a new error return path label after the use of the macro to avoid the deference. Added Reference https://git.kernel.org/stable/c/16ccbfddcb32365138c806cf572e69b42a193c5c Added Reference https://git.kernel.org/stable/c/1982257570b84dc33753d536dd969fd357a014e9 Added Reference https://git.kernel.org/stable/c/25ab5e97d3c5f3ed594b4a65d1cc99dc24756681 Added Reference https://git.kernel.org/stable/c/25d623f0d77c11a256a54e860d00c239aa9a2583 Added Reference https://git.kernel.org/stable/c/3bbbab7b6949c76df64210348adbefedaabbf549 Added Reference https://git.kernel.org/stable/c/44ef9f81392de885883f73b9f5c43936a82ae9d7 Added Reference https://git.kernel.org/stable/c/526ea3c0ccd495b0079db3e28fdddd51c1bf01f7 Added Reference https://git.kernel.org/stable/c/6037124dbf675fbd0a6248aaf04cf07387b8c323