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CVE-2026-43222 (GCVE-0-2026-43222)

Vulnerability from cvelistv5 – Published: 2026-05-06 11:28 – Updated: 2026-08-05 12:26
VLAI
Title
media: verisilicon: AV1: Fix tile info buffer size
Summary
In the Linux kernel, the following vulnerability has been resolved: media: verisilicon: AV1: Fix tile info buffer size Each tile info is composed of: row_sb, col_sb, start_pos and end_pos (4 bytes each). So the total required memory is AV1_MAX_TILES * 16 bytes. Use the correct #define to allocate the buffer and avoid writing tile info in non-allocated memory.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 727a400686a2c0d25015c9e44916a59b72882f83 , < a5b1ddbe31f49b4da78642157589970e9b60a231 (git)
Affected: 727a400686a2c0d25015c9e44916a59b72882f83 , < 34f36f9c6114af781a5a4f7a7c99334c85b73fc7 (git)
Affected: 727a400686a2c0d25015c9e44916a59b72882f83 , < f122f2b3ce9dbde60bf7ab0b180fe4a01f9d9bc4 (git)
Affected: 727a400686a2c0d25015c9e44916a59b72882f83 , < 74abfadd7ef5ac9f3a6111d550cc651d1457c641 (git)
Affected: 727a400686a2c0d25015c9e44916a59b72882f83 , < a505ca2db89ad92a8d8d27fa68ebafb12e04a679 (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.5
Unaffected: 0 , < 6.5 (semver)
Unaffected: 6.6.128 , ≤ 6.6.* (semver)
Unaffected: 6.12.75 , ≤ 6.12.* (semver)
Unaffected: 6.18.16 , ≤ 6.18.* (semver)
Unaffected: 6.19.6 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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            "drivers/media/platform/verisilicon/rockchip_vpu981_hw_av1_dec.c"
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              "value": "AV:L - The vulnerable code is reached through local V4L2 mem2mem decoder device operations and media request/ioctl submission to the Rockchip Verisilicon AV1 decoder, not directly by packets in an in-kernel network protocol.\nAC:L - An attacker can reliably submit AV1 frame and tile group controls with enough tiles to drive the undersized tile info buffer write; no race or uncontrollable timing condition is required.\nPR:L - The driver open and decode path has no capability check, but exploitation requires local access to the decoder device node or an equivalent low-privileged local media client context.\nUI:N - A local attacker with access to the V4L2 decoder can trigger the overflow directly by issuing ioctls and queueing a decode request; no separate victim action is needed.\nS:U - The corruption occurs within the kernel driver and impacts the same kernel security authority; there is no VM, IOMMU, or cross-scope boundary involved.\nC:H - This is an out-of-bounds write from kernel context into DMA-coherent memory, and kernel memory corruption is reasonably exploitable for disclosure primitives in severe cases.\nI:H - The bug writes attacker-influenced tile metadata past an undersized allocation, so it is a kernel out-of-bounds write with potential for arbitrary memory corruption or code execution.\nA:H - Even without full exploitation, writing beyond the allocated coherent buffer can corrupt adjacent memory or allocator state and plausibly crash or hang the kernel."
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    "datePublished": "2026-05-06T11:28:22.291Z",
    "dateReserved": "2026-05-01T14:12:55.994Z",
    "dateUpdated": "2026-08-05T12:26:41.823Z",
    "state": "PUBLISHED"
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    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-28T07:36:10+00:00",
      "cve": "CVE-2026-43222",
      "id": "CVE-2026-43222",
      "initial_release_date": "2026-05-06T00:00:00+00:00",
      "product_status:known_not_affected": "274",
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      "status": "final",
      "title": "kernel: media: verisilicon: AV1: Fix tile info buffer size",
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    },
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      "current_release_date": "2026-08-31T17:07:42Z",
      "cve": "CVE-2026-43222",
      "id": "CVE-2026-43222",
      "initial_release_date": "2026-05-07T02:17:06Z",
      "product_status:first_fixed": "2",
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      "product_status:recommended": "228",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-43222",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-43222.json",
      "version": "9"
    }
  }
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


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