CVE-2026-46240

Summary

In the Linux kernel, the following vulnerability has been resolved:

media: iris: Fix use-after-free in iris_release_internal_buffers()

The recent change in commit 1dabf00ee206 ("media: iris: gen1: Destroy internal buffers after FW releases") introduced a regression where session_release_buf() may free the buffer. The caller, iris_release_internal_buffers(), continued to access buffer after the call, leading to a potential use-after-free.

Fix this by setting BUF_ATTR_PENDING_RELEASE before calling session_release_buf(), and reverting the flag if the call fails. This ensures no dereference occurs after potential freeing.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux7cde76db8883ec8a3d1456068079ecadbfb15ca5 < dd24998a4a4016fb9921916024399bd80f0d45c6affected
LinuxLinux1dabf00ee206eceb0f08a1fe5d1ce635f9064338 < 18c64439f249859b6140f7bf8bcf95c8ed841f28affected
LinuxLinux1dabf00ee206eceb0f08a1fe5d1ce635f9064338 < f27cfdcfc916bb59297825805f4c3499f89f9e76affected
LinuxLinuxd4457f23ac0130240053a34be663f0fade3bb371affected
LinuxLinux6.18.16 < 6.18.32affected
LinuxLinux6.19.6 < 6.20affected
LinuxLinux7.0affected
LinuxLinux0 < 7.0unaffected
LinuxLinux6.18.32 <= 6.18.*unaffected
LinuxLinux7.0.9 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References