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CVE-2026-68106— drm/amdgpu: fix division by zero with invalid uvd dimensions

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.

Linux kernel是美国Linux基金会开源的一个操作系统内核。 Linux kernel 6.6.148之前版本、6.12.101之前版本、6.18.42之前版本和7.1.6之前版本存在安全漏洞，该漏洞源于视频宽度或高度小于16时，width_in_mb或height_in_mb变为0，导致fs_in_mb为0，在H264和H264 Perf解码路径中计算num_dpb_buffer时发生除零，可能导致服务崩溃或其他异常。

CVSS 7.8 · High EPSS 0.13% · P3

Possible ATT&CK Techniques 1 AI

T1211 · Exploitation for Stealth

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux d38ceaf99ed015f2a0b9af3499791bd3a3daae21< 004d0453cfef16f056cb7b8bc04f69f19cf9df32 affected
d38ceaf99ed015f2a0b9af3499791bd3a3daae21< 00ee64910ecf748cc15b23bbcbea472c203ec1e8 affected
d38ceaf99ed015f2a0b9af3499791bd3a3daae21< 81c9b4921f62d1642b9d775524ae9240e521a5ed affected
d38ceaf99ed015f2a0b9af3499791bd3a3daae21< 52f9a588296432accf2982f7d258192a37562f4f affected
d38ceaf99ed015f2a0b9af3499791bd3a3daae21< a00946b5ab7c25da5685ca9c58f50ff6f43c0fdf affected
d38ceaf99ed015f2a0b9af3499791bd3a3daae21< ffb33d466a68cea3e8a3dbed04d79037a3cbabd1 affected
d38ceaf99ed015f2a0b9af3499791bd3a3daae21< be725ab23aa45c11a5afef3e2a9f6d8c084ae5dc affected
d38ceaf99ed015f2a0b9af3499791bd3a3daae21< 0c01c811be47e6b146552dd59bfedbea8f09b8f4 affected
… +10 more rows
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I. Basic Information for CVE-2026-68106

Vulnerability Information
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Vulnerability Title
drm/amdgpu: fix division by zero with invalid uvd dimensions
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix division by zero with invalid uvd dimensions When width or height is less than 16, width_in_mb or height_in_mb becomes 0, leading to fs_in_mb being 0. This causes a division by zero when calculating num_dpb_buffer in H264 and H264 Perf decode paths. Add validation to reject frames with width < 16 or height < 16 before performing any calculations that depend on these values. V2: Format change - move up all vaiable definitions. V3: Use warn_once to avoid spam. (cherry picked from commit 3e41d26c70b0a459d041cc19482a226c4b7423cb)
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
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会开源的一个操作系统内核。 Linux kernel 6.6.148之前版本、6.12.101之前版本、6.18.42之前版本和7.1.6之前版本存在安全漏洞，该漏洞源于视频宽度或高度小于16时，width_in_mb或height_in_mb变为0，导致fs_in_mb为0，在H264和H264 Perf解码路径中计算num_dpb_buffer时发生除零，可能导致服务崩溃或其他异常。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux d38ceaf99ed015f2a0b9af3499791bd3a3daae21 ~ 004d0453cfef16f056cb7b8bc04f69f19cf9df32 -
Linux Linux 4.2 -

II. Public POCs for CVE-2026-68106

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III. Intelligence Information for CVE-2026-68106

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Patches & Fixes for CVE-2026-68106 (8)

Same Patch Batch · Linux · 2026-08-10 · 344 CVEs total

CVE-2026-68160 9.8 CRITICAL ceph: fix pre-auth out-of-bounds read on snaptrace in ceph_handle_caps()
CVE-2026-68300 9.8 CRITICAL sctp: auth: verify auth requirement when auth_chunk is NULL
CVE-2026-68136 9.8 CRITICAL net: gro: fix double aggregation of flush-marked skbs
CVE-2026-68137 9.8 CRITICAL net/x25: fix use-after-free in x25_kill_by_neigh()
CVE-2026-68302 9.8 CRITICAL amt: re-read skb header pointers after every pull
CVE-2026-68144 9.8 CRITICAL phonet: pep: fix use-after-free in pep_get_sb()
CVE-2026-68127 9.8 CRITICAL ila: reload IPv6 header after pskb_may_pull in checksum adjust
CVE-2026-68154 9.8 CRITICAL libceph: reject zero bucket types in crush_decode
CVE-2026-68156 9.8 CRITICAL libceph: refresh auth->authorizer_buf{,_len} after authorizer update
CVE-2026-68158 9.8 CRITICAL libceph: Fix multiplication overflow in decode_new_up_state_weight()
CVE-2026-68159 9.8 CRITICAL libceph: bound pg_{temp,upmap,upmap_items} length to CEPH_PG_MAX_SIZE
CVE-2026-68381 9.8 CRITICAL ksmbd: pin conn during async oplock break notification
CVE-2026-68385 9.8 CRITICAL s390/checksum: Fix csum_partial() without vector facility
CVE-2026-68170 9.8 CRITICAL mptcp: fix stale skb->sk reference on subflow close
CVE-2026-68426 9.8 CRITICAL xfrm: fix stale skb->prev after async crypto steals a GSO segment
CVE-2026-68123 9.8 CRITICAL openvswitch: fix GSO userspace truncation underflow
CVE-2026-68117 9.8 CRITICAL tipc: clear sock->sk on the failed-insert path in tipc_sk_create()
CVE-2026-68161 9.8 CRITICAL sctp: close UDP tunnel sockets during netns teardown
CVE-2026-68388 9.8 CRITICAL smb/client: handle overlapping allocated ranges in fallocate
CVE-2026-68124 9.6 CRITICAL mctp: serial: handle zero-length frames to prevent rx buffer overflow

Showing top 20 of 344 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-68106

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