CVE-2026-23226
ksmbd: add chann_lock to protect ksmbd_chann_list xarray
Severity Score
8.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
In the Linux kernel, the following vulnerability has been resolved: ksmbd: add chann_lock to protect ksmbd_chann_list xarray ksmbd_chann_list xarray lacks synchronization, allowing use-after-free in
multi-channel sessions (between lookup_chann_list() and ksmbd_chann_del). Adds rw_semaphore chann_lock to struct ksmbd_session and protects
all xa_load/xa_store/xa_erase accesses.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2026-01-13 CVE Reserved
- 2026-02-18 CVE Published
- 2026-03-22 EPSS Updated
- 2026-04-02 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (8)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/1d9c4172110e645b383ff13eee759728d74f1a5d | Vuln. Introduced | |
| https://git.kernel.org/stable/c/b1caecbf34b8c8260d851ec4efde71f3694460b7 | Vuln. Introduced | |
| https://git.kernel.org/stable/c/91bbf9cb2387a0d76322e9a343bc6bc160f66b3f | Vuln. Introduced | |
| https://git.kernel.org/stable/c/853c416710b075153c1e1421e099ffbe5dac68ce | Vuln. Introduced |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.3 < 6.12.77 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.3 < 6.12.77" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.3 < 6.18.11 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.3 < 6.18.11" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.3 < 6.19.1 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.3 < 6.19.1" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.3 < 7.0-rc1 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.3 < 7.0-rc1" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 5.15.145 Search vendor "Linux" for product "Linux Kernel" and version "5.15.145" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 6.1.29 Search vendor "Linux" for product "Linux Kernel" and version "6.1.29" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 6.2.16 Search vendor "Linux" for product "Linux Kernel" and version "6.2.16" | en |
Affected
| ||||||