CVE-2026-53140

Summary

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

drm/v3d: Fix vaddr leak when indirect CSD has zeroed workgroups

v3d_rewrite_csd_job_wg_counts_from_indirect() maps both the indirect buffer and the workgroup buffer and is expected to release them before returning. When any of the workgroup counts read from the buffer is zero, the function bailed out early and skipped the cleanup, leaking the vaddr mappings of both BOs.

Jump to the cleanup path instead of returning directly, so the mappings are always dropped.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux18b8413b25b7070fa2e55858a2c808e6909581d0 < 0b59d0946913a0df7d1a033013e259e9b6a76546affected
LinuxLinux18b8413b25b7070fa2e55858a2c808e6909581d0 < 90b629269088a9fe24a02c032be9f08357f47873affected
LinuxLinux18b8413b25b7070fa2e55858a2c808e6909581d0 < 60ebeb23eaf3d7fd2e0551fe304309305e31d424affected
LinuxLinux18b8413b25b7070fa2e55858a2c808e6909581d0 < ae7676952790f421c40918e2586a2c9f12a682b6affected
LinuxLinux6.8affected
LinuxLinux0 < 6.8unaffected
LinuxLinux6.12.94 <= 6.12.*unaffected
LinuxLinux6.18.36 <= 6.18.*unaffected
LinuxLinux7.0.13 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References