CVE-2026-23309
tracing: Add NULL pointer check to trigger_data_free()
Severity Score
"-"
*CVSS v-
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: tracing: Add NULL pointer check to trigger_data_free() If trigger_data_alloc() fails and returns NULL, event_hist_trigger_parse()
jumps to the out_free error path. While kfree() safely handles a NULL
pointer, trigger_data_free() does not. This causes a NULL pointer
dereference in trigger_data_free() when evaluating
data->cmd_ops->set_filter. Fix the problem by adding a NULL pointer check to trigger_data_free(). The problem was found by an experimental code review agent based on
gemini-3.1-pro while reviewing backports into v6.18.y.
*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
- 2026-03-25 CVE Published
- 2026-03-25 CVE Updated
- 2026-03-31 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (12)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/c10f0efe57728508d796ae4ba7abe4c14ec3d8ef | Vuln. Introduced | |
| https://git.kernel.org/stable/c/7e6556e9329bc484e9dcdab6e346d959267c0636 | Vuln. Introduced | |
| https://git.kernel.org/stable/c/9b0513905e0598b9f8cfccab8e47497aed5d935d | Vuln. Introduced | |
| https://git.kernel.org/stable/c/335dfe4bc6368e70e8c15419375cf609c4f85558 | Vuln. Introduced | |
| https://git.kernel.org/stable/c/e42efbe9754da78eafe11f6bd3ca9c8a094a752a | Vuln. Introduced | |
| https://git.kernel.org/stable/c/0550069cc25f513ce1f109c88f7c1f01d63297db | 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" | >= 6.1.165 < 6.1.167 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.1.165 < 6.1.167" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.6.128 < 6.6.130 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.6.128 < 6.6.130" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.12.75 < 6.12.77 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.12.75 < 6.12.77" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.18.14 < 6.18.17 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.18.14 < 6.18.17" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.19.4 < 6.19.7 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.19.4 < 6.19.7" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 7.0-rc1 < 7.0-rc3 Search vendor "Linux" for product "Linux Kernel" and version " >= 7.0-rc1 < 7.0-rc3" | en |
Affected
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