CVE-2026-43397 Details
Description
In the Linux kernel, the following vulnerability has been resolved: drm/bridge: samsung-dsim: Fix memory leak in error path In samsung_dsim_host_attach(), drm_bridge_add() is called to add the bridge. However, if samsung_dsim_register_te_irq() or pdata->host_ops->attach() fails afterwards, the function returns without removing the bridge, causing a memory leak. Fix this by adding proper error handling with goto labels to ensure drm_bridge_remove() is called in all error paths. Also ensure that samsung_dsim_unregister_te_irq() is called if the attach operation fails after the TE IRQ has been registered. samsung_dsim_unregister_te_irq() function is moved without changes to be before samsung_dsim_host_attach() to avoid forward declaration.
A memory leak vulnerability has been identified in the Samsung DSI bridge implementation of the Linux kernel. The issue arises in the 'samsung_dsim_host_attach()' function, where the 'drm_bridge_add()' function is called to add a bridge. If the subsequent calls to 'samsung_dsim_register_te_irq()' or 'pdata->host_ops->attach()' fail, the function exits without removing the bridge, leading to a memory leak. This vulnerability affects the Linux kernel stable tree.
The vulnerability has been addressed by adding error handling to ensure that the bridge is removed in all error scenarios. Users should update to the latest version of the Linux kernel where this fix has been applied.
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/0b07f7d2c5a4078c2f1c11bb36685084fe4e5c95 | kernel.org | Patch |
| https://git.kernel.org/stable/c/803ec1faf7c1823e6e3b1f2aaa81be18528c9436 | kernel.org | Patch |
| https://git.kernel.org/stable/c/98310fe3a2a79671b739a5344c1a11d74c503e25 | kernel.org | Patch |
| https://git.kernel.org/stable/c/a40b92fb4b26d4cb1b5e439e55a56db7e79a82d1 | kernel.org | Patch |
| https://git.kernel.org/stable/c/e6d779654cda63d632bd8dfcdcabd125057e30a5 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-401 | Missing Release of Memory after Effective Lifetime | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 6.4, < 6.6.130 >= 6.7, < 6.12.78 >= 6.13, < 6.18.19 >= 6.19, < 6.19.9 7.0 rc1 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| May 21, 2026 | Initial Analysis | [email protected] |
| May 8, 2026 | New CVE Received | kernel.org |