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CVE-2026-97578— media: verisilicon: rockchip: guard VPU981 AV1 divisor and tile buffer

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Linux 内核中，已修复以下漏洞： 媒体子系统：verisilicon: rockchip：保护 VPU981 AV1 除数和色块缓冲区 函数 将 除以 ，并向色块信息 DMA 缓冲区写入每个色块的一个描述符；该缓冲区最多可容纳 个条目。其中， 和 的值来源于视频比特流。 为防范 为零时导致的除零错误，漏洞修复措施包括：将上下文更新值初始化为零，并且仅在 非零时才进行计算；同时，在 缓冲区已满后停止写入描述符。写入硬件寄存器的色块几何参数保持不变；各维度的色块边界以及总色块边界均通过控制验证予以强制约束。

CVSS 7.8 · High EPSS 0.16% · P5

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 10

VendorProduct Version RangeStatus
Linux Linux 727a400686a2c0d25015c9e44916a59b72882f83< 7baa7bb1b784c19170df8c99466fa412040eb431 affected
727a400686a2c0d25015c9e44916a59b72882f83< 8f19d869a9f6800547c9ad7ebaf3b94f973dab50 affected
727a400686a2c0d25015c9e44916a59b72882f83< 6b7a281a815ae7c5e7bb2aad039ffea9bc933157 affected
727a400686a2c0d25015c9e44916a59b72882f83< b84f6533a8ed2fd7b282fc7ab4b8efadc745a89c affected
6.5 affected
< 6.5 unaffected
6.12.111≤ 6.12.* unaffected
6.18.53≤ 6.18.* unaffected
… +2 more rows
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I. Basic Information for CVE-2026-97578

Vulnerability Information
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Vulnerability Title
media: verisilicon: rockchip: guard VPU981 AV1 divisor and tile buffer
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 727a400686a2c0d25015c9e44916a59b72882f83 ~ 7baa7bb1b784c19170df8c99466fa412040eb431 -
Linux Linux 6.5 -

II. Public POCs for CVE-2026-97578

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III. Intelligence Information for CVE-2026-97578

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Patches & Fixes for CVE-2026-97578 (4)

Same Patch Batch · Linux · 2026-09-25 · 372 CVEs total

CVE-2026-100075 9.8 CRITICAL RDMA/srpt: Fix srpt_alloc_rw_ctxs() unwind counters
CVE-2026-97957 8.8 HIGH net: hinic: fix mailbox segment buffer overflow
CVE-2026-97527 8.8 HIGH scsi: qla2xxx: Serialize NVMe unsol ctx list with a per-fcport lock
CVE-2026-97528 8.8 HIGH scsi: qla2xxx: Unlink NVMe unsol ctx before freeing on LS reject error
CVE-2026-97555 8.8 HIGH smb: client: fix heap overflow in DACL owner/group rewrite
CVE-2026-98115 8.8 HIGH ksmbd: safely drain sessions during logoff
CVE-2026-97525 8.2 HIGH x86/mm/pat: Allocate split page tables as kernel page tables
CVE-2026-98130 8.1 HIGH sctp: fix a TOCTOU race in SCTP_CMD_TIMER_START
CVE-2026-97573 8.1 HIGH bnxt_en: Handle buffer allocation failure in bnxt_rx_ring_reset()
CVE-2026-98069 8.1 HIGH net/rds: acquire the fastpath locks in rds_conn_shutdown()
CVE-2026-98070 8.1 HIGH net/rds: acquire RDS_IN_XMIT in rds_tcp_reset_callbacks()
CVE-2026-97570 8.1 HIGH bnxt_en: Bound SW TPA IDs to prevent crashes
CVE-2026-97911 7.8 HIGH accel: ethosu: Ensure SRAM region size matches job
CVE-2026-98023 7.8 HIGH vxlan: reject dynamic fdb entries that reference a nexthop id
CVE-2026-97910 7.8 HIGH ASoC: sprd: validate compress buffer sizes against fixed allocations
CVE-2026-97584 7.8 HIGH afs: Fix incorrect free in candidate cleanup in afs_lookup_server()
CVE-2026-98143 7.8 HIGH accel: ethosu: Don't read the U65 rounding mode as a storage mode
CVE-2026-97903 7.8 HIGH exit: hold a reference to thread_pid across proc_flush_pid
CVE-2026-97548 7.8 HIGH xfs: fix the rtrmap and rtrefcount _maxlevels_ondisk functions
CVE-2026-97594 7.8 HIGH landlock: Fix use-after-free of the source's parent directory

Showing top 20 of 372 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-97578

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