CVE-2026-43397

Summary

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.

Affected Software

Weaknesses

References

• https://git.kernel.org/stable/c/98310fe3a2a79671b739a5344c1a11d74c503e25
• https://git.kernel.org/stable/c/0b07f7d2c5a4078c2f1c11bb36685084fe4e5c95
• https://git.kernel.org/stable/c/e6d779654cda63d632bd8dfcdcabd125057e30a5
• https://git.kernel.org/stable/c/a40b92fb4b26d4cb1b5e439e55a56db7e79a82d1
• https://git.kernel.org/stable/c/803ec1faf7c1823e6e3b1f2aaa81be18528c9436

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