CVE-2026-64021Medium· 5.5▾ SunlitIn the Linux kernel, the following vulnerability has been resolved: drm/xe/oa: Fix exec_queue leak on width check in stream open In xe_oa_stream_open_ioctl(), when param.exec_q->width > 1 the function returns -EOPNOTSUPP directly, skip…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 30.3 · likelihood 0 · exploitation 0
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Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.2%
In the Linux kernel, the following vulnerability has been resolved:
drm/xe/oa: Fix exec_queue leak on width check in stream open
In xe_oa_stream_open_ioctl(), when param.exec_q->width > 1 the function returns -EOPNOTSUPP directly, skipping the existing err_exec_q cleanup path. The exec_queue reference obtained by xe_exec_queue_lookup() is leaked.
The exec queue holds a reference on the xe_file, which is only dropped during queue teardown. The leaked lookup ref is not on the file's exec_queue xarray, so file close cannot release it. This keeps both the exec queue and the file private state pinned indefinitely.
Jump to err_exec_q instead of returning directly so the reference is released.
(cherry picked from commit 339fa0be9e4a5d69fa47e91f4a36574224fb478f)
linux_kernel >= 6.13.1, < 6.18.34linux_kernel >= 6.19, < 7.0.11linux_kernel = 6.13linux_kernel = 7.1Upgrade past the affected range:
linux_kernel 7.0.11Connected by shared product, vendor, weakness, or advisory.
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