{"id":"CVE-2026-89867","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: chips-media: wave5: Defer job_finish() only when a DEC_PIC was queued\n\nDecoder instances sharing a VPU also share one v4l2_m2m job slot, released\nwhen the runnin…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: chips-media: wave5: Defer job_finish() only when a DEC_PIC was queued\n\nDecoder instances sharing a VPU also share one v4l2_m2m job slot, released\nwhen the runnin…","severity":"medium","vendor":"Linux","product":"Linux","affected":["Linux >= a176ac5e701f1ba30843c0d7e0663a761bf9a61a < 63d758d2f9dba836d5ae597d317cde522e817cf9","Linux >= a176ac5e701f1ba30843c0d7e0663a761bf9a61a < b694ba0a5526a69f78a6924982b1553154ccfd73","Linux 7.0"],"published":"2026-09-16","updated":"2026-09-16","sourceUpdated":"2026-09-16T11:16:54.843","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-89867","references":[{"url":"https://git.kernel.org/stable/c/63d758d2f9dba836d5ae597d317cde522e817cf9","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b694ba0a5526a69f78a6924982b1553154ccfd73","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89867.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-89867"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2535373"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89867"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89867"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89867.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ingestedAt":"2026-09-16T10:53:53.989Z","epss":0.00198,"epssPercentile":0.09458,"cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":["CWE-772"],"slug":"CVE-2026-89867","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nmedia: chips-media: wave5: Defer job_finish() only when a DEC_PIC was queued\n\nDecoder instances sharing a VPU also share one v4l2_m2m job slot, released\nwhen the running context calls v4l2_m2m_job_finish(). While draining,\ndevice_run() defers job_finish() once EOS is sent (sent_eos), expecting a\nlater finish_decode() (from a DEC_PIC completion IRQ) to release the slot.\n\nBut the m2m core checks job_ready() only when a job is queued, not when it\nis dispatched. A job queued while draining can run after finish_decode()\nhas already moved the instance to STOP and sent EOS. device_run() then runs\nin STOP, issues no DEC_PIC, yet still skips job_finish() - so no IRQ, no\nfinish_decode(), and the shared slot is leaked, stalling every instance.\nWith several v4l2h264dec instances in parallel, GStreamer hangs at EOS.\n\nTrack whether the run actually queued a DEC_PIC (cmd_issued) and defer\njob_finish() only then. Otherwise finish the job immediately\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · updated 2026-10-05 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89867.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":216255,"id":"CVE-2026-89867","ts":1791274050043,"field":"cvss","old":null,"new":"5.5"},{"seq":216254,"id":"CVE-2026-89867","ts":1791274050043,"field":"severity","old":"none","new":"medium"}]}