{
  "cveId": "CVE-2026-53382",
  "url": "https://patchblox.com/security/cve/CVE-2026-53382",
  "summary": "CVE-2026-53382 is fixed in 16 products on 1 platform, first by DEBIAN-CVE-2026-53382, released July 20, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "media: vidtv: fix NULL pointer dereference in vidtv_mux_push_si",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  media: vidtv: fix NULL pointer dereference in vidtv_mux_push_si  syzbot reported a general protection fault in vidtv_psi_ts_psi_write_into [1].  vidtv_mux_get_pid_ctx() can return NULL, but vidtv_mux_push_si() does not check for this before dereferencing the returned pointer to access the continuity counter. This leads to a general protection fault when accessing a near-NULL address.  The root cause is that vidtv_mux_pid_ctx_init() does not check the return value of vidtv_mux_create_pid_ctx_once() for PMT section PIDs. If the allocation fails, the PID context is never created, but init returns success. The subsequent vidtv_mux_push_si() call then gets NULL from vidtv_mux_get_pid_ctx() and crashes.  Fix both the root cause (add error check in vidtv_mux_pid_ctx_init for PMT PIDs) and add defensive NULL checks in vidtv_mux_push_si for all vidtv_mux_get_pid_ctx() calls.  [1] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] Workqueue: events vidtv_mux_tick RIP: 0010:vidtv_psi_ts_psi_write_into\u002B0x54a/0xbc0 drivers/media/test-drivers/vidtv/vidtv_psi.c:197 Call Trace:  \u003CTASK\u003E  vidtv_psi_table_header_write_into drivers/media/test-drivers/vidtv/vidtv_psi.c:799 [inline]  vidtv_psi_pmt_write_into\u002B0x3b2/0xa70 drivers/media/test-drivers/vidtv/vidtv_psi.c:1231  vidtv_mux_push_si\u002B0x932/0xe80 drivers/media/test-drivers/vidtv/vidtv_mux.c:196  vidtv_mux_tick\u002B0xe9b/0x1480 drivers/media/test-drivers/vidtv/vidtv_mux.c:408",
  "published": "2026-07-19T12:16:48Z",
  "severity": "Moderate",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00132,
  "epssPercentile": 0.02808,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-53382",
  "fixes": [
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      "released": "2026-08-12T01:09:28Z"
    },
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      "released": "2026-08-11T21:26:34Z"
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  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "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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}