{
  "cveId": "CVE-2026-46011",
  "url": "https://patchblox.com/security/cve/CVE-2026-46011",
  "summary": "CVE-2026-46011 is fixed in 16 products on 1 platform, first by DEBIAN-CVE-2026-46011, released May 27, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "media: mtk-jpeg: fix use-after-free in release path due to uncancelled work",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  media: mtk-jpeg: fix use-after-free in release path due to uncancelled work  The mtk_jpeg_release() function frees the context structure (ctx) without first cancelling any pending or running work in ctx-\u003Ejpeg_work. This creates a race window where the workqueue callback may still be accessing the context memory after it has been freed.  Race condition:      CPU 0 (release)                    CPU 1 (workqueue)     ----------------                   ------------------     close()       mtk_jpeg_release()                                        mtk_jpegenc_worker()                                          ctx = work-\u003Edata                                          // accessing ctx          kfree(ctx)  // freed!                                          access ctx  // UAF!  The work is queued via queue_work() during JPEG encode/decode operations (via mtk_jpeg_device_run). If the device is closed while work is pending or running, the work handler will access freed memory.  Fix this by calling cancel_work_sync() BEFORE acquiring the mutex. This ordering is critical: if cancel_work_sync() is called after mutex_lock(), and the work handler also tries to acquire the same mutex, it would cause a deadlock.  Note: The open error path does NOT need cancel_work_sync() because INIT_WORK() only initializes the work structure - it does not schedule it. Work is only scheduled later during ioctl operations.",
  "published": "2026-05-27T14:17:19Z",
  "severity": "Moderate",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00125,
  "epssPercentile": 0.02219,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-46011",
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  "noFixYet": [],
  "dataAsOf": "2026-11-10T01:44:33Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
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}