media: verisilicon: rockchip: guard VPU981 AV1 divisor and tile buffer
In the Linux kernel, the following vulnerability has been resolved: media: verisilicon: rockchip: guard VPU981 AV1 divisor and tile buffer rockchip_vpu981_av1_dec_set_tile_info() divides context_update_tile_id by tile_info->tile_cols and writes one descriptor per tile into the tile_info DMA buffer, which holds AV1_MAX_TILES entries; tile_cols and tile_rows come from the bitstream. Guard the division against a zero tile_cols by initialising the context-update values to zero and computing them only when tile_cols is non-zero, and stop the descriptor writes once the tile_info buffer is full. The tile geometry written to the hardware registers is left unmodified; the per-dimension and total tile bounds are enforced by the control validation.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 6.12.111, 6.18.53, 6.6.158, 7.2.7
- CVEs
- CVE-2026-97578
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 7 Nov 2026, 06:19 UTC · Revision 1
Source evidence
media: verisilicon: rockchip: guard VPU981 AV1 divisor and tile buffer
core-osv · Original sourcePublished 25 Sept 2026, 10:22 UTC
In the Linux kernel, the following vulnerability has been resolved: media: verisilicon: rockchip: guard VPU981 AV1 divisor and tile buffer rockchip_vpu981_av1_dec_set_tile_info() divides context_update_tile_id by tile_info->tile_cols and writes one descriptor per tile into the tile_info DMA buffer, which holds AV1_MAX_TILES entries; tile_cols and tile_rows come from the bitstream. Guard the division against a zero tile_cols by initialising the context-update values to zero and computing them only when tile_cols is non-zero, and stop the descriptor writes once the tile_info buffer is full. The tile geometry written to the hardware registers is left unmodified; the per-dimension and total tile bounds are enforced by the control validation.
osv:CVE-2026-97578
Kernel
Fixed versions: 6.6.158, 6.12.111, 6.18.53, 7.2.7
Complete source record
{
"id": "24deb34af4acd4a3f4b99c3934eb373b92ea2e7ca3d5f3de6d0f092911918602",
"url": "https://osv.dev/vulnerability/CVE-2026-97578",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "media: verisilicon: rockchip: guard VPU981 AV1 divisor and tile buffer",
"summary": "In the Linux kernel, the following vulnerability has been resolved: media: verisilicon: rockchip: guard VPU981 AV1 divisor and tile buffer rockchip_vpu981_av1_dec_set_tile_info() divides context_update_tile_id by tile_info->tile_cols and writes one descriptor per tile into the tile_info DMA buffer, which holds AV1_MAX_TILES entries; tile_cols and tile_rows come from the bitstream. Guard the division against a zero tile_cols by initialising the context-update values to zero and computing them only when tile_cols is non-zero, and stop the descriptor writes once the tile_info buffer is full. The tile geometry written to the hardware registers is left unmodified; the per-dimension and total tile bounds are enforced by the control validation.",
"evidence": "osv:CVE-2026-97578",
"products": [
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"name": {
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"prerequisites": [],
"fixed_versions": [
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"evidence": "/affected/1/ranges"
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{
"value": "6.12.111",
"evidence": "/affected/1/ranges"
},
{
"value": "6.18.53",
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},
{
"value": "7.2.7",
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"severity": "high",
"structured": {
"id": "CVE-2026-97578",
"aliases": [
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"metrics": [
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"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
}
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"affected": [
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{
"ranges": [
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"type": "ECOSYSTEM",
"events": [
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{
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{
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"package": {
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"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-97578.json"
}
}
],
"modified": "2026-10-28T02:30:49.798121828Z",
"provider": "osv",
"references": [
"https://git.kernel.org/stable/c/6b7a281a815ae7c5e7bb2aad039ffea9bc933157",
"https://git.kernel.org/stable/c/7baa7bb1b784c19170df8c99466fa412040eb431",
"https://git.kernel.org/stable/c/8659e5fc21a82e00fb2db1557f2e06f0fca06b90",
"https://git.kernel.org/stable/c/8f19d869a9f6800547c9ad7ebaf3b94f973dab50",
"https://git.kernel.org/stable/c/b84f6533a8ed2fd7b282fc7ab4b8efadc745a89c",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97578.json",
"https://nvd.nist.gov/vuln/detail/CVE-2026-97578",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
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"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97578.json"
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},
"related_cves": [
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"evidence": "/id"
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"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 518472,
"published_at": "2026-09-25T10:22:00.541+00:00"
}