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CVE-2026-46197— drm/amdkfd: validate SVM ioctl nattr against buffer size

CVSS 7.8 · High EPSS 0.01% · P2

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 12

VendorProductVersion RangeStatus
LinuxLinux42de677f79999791bee4e21be318c32d90ab62c6< 91c6dc5a41695d02dfc6299f106ac38a6c493e52affected
42de677f79999791bee4e21be318c32d90ab62c6< ccd060b5c7cc75ae7e211c250b97c5b6272e7efcaffected
42de677f79999791bee4e21be318c32d90ab62c6< db9530a9873a7c85d2266a922589ebcf427fa631affected
42de677f79999791bee4e21be318c32d90ab62c6< 6abd3a4417cb73a7d0db7e25bf11fae1074bdba3affected
42de677f79999791bee4e21be318c32d90ab62c6< 045e0ff208f0838a246c10204105126611b267a1affected
5.14affected
< 5.14unaffected
6.6.140≤ 6.6.*unaffected
… +4 more rows
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I. Basic Information for CVE-2026-46197

Vulnerability Information
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Vulnerability Title
drm/amdkfd: validate SVM ioctl nattr against buffer size
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: validate SVM ioctl nattr against buffer size Validate nattr field against the buffer size, preventing out-of-bounds buffer access via user-controlled attribute count. (cherry picked from commit 5eca8bfdfa456c3304ca77523718fe24254c172f)
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于drm amdkfd中SVM ioctl的nattr字段未针对缓冲区大小进行验证，可能导致通过用户控制的属性计数进行越界缓冲区访问。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux 42de677f79999791bee4e21be318c32d90ab62c6 ~ 91c6dc5a41695d02dfc6299f106ac38a6c493e52 -
LinuxLinux 5.14 -

II. Public POCs for CVE-2026-46197

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III. Intelligence Information for CVE-2026-46197

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Patches & Fixes for CVE-2026-46197 (5)

Same Patch Batch · Linux · 2026-05-28 · 138 CVEs total

CVE-2026-461359.8 CRITICALnvmet-tcp: fix race between ICReq handling and queue teardown
CVE-2026-461379.8 CRITICALmptcp: pm: ADD_ADDR rtx: fix potential data-race
CVE-2026-461959.8 CRITICALsmb: client: validate dacloffset before building DACL pointers
CVE-2026-461159.8 CRITICALblock: add pgmap check to biovec_phys_mergeable
CVE-2026-461199.1 CRITICALlibceph: Fix slab-out-of-bounds access in auth message processing
CVE-2026-461859.1 CRITICALsmb/client: fix out-of-bounds read in symlink_data()
CVE-2026-461559.1 CRITICALsmb/client: fix out-of-bounds read in smb2_compound_op()
CVE-2026-461258.8 HIGHwifi: mac80211: remove station if connection prep fails
CVE-2026-462128.8 HIGHbatman-adv: bla: prevent use-after-free when deleting claims
CVE-2026-461748.8 HIGHx86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache
CVE-2026-461528.8 HIGHwifi: mac80211: drop stray 'static' from fast-RX rx_result
CVE-2026-462388.8 HIGHbatman-adv: stop caching unowned originator pointers in BAT IV
CVE-2026-461668.8 HIGHwifi: mac80211: use safe list iteration in radar detect work
CVE-2026-461988.8 HIGHbatman-adv: fix integer overflow on buff_pos
CVE-2026-461138.8 HIGHKVM: x86: Fix shadow paging use-after-free due to unexpected GFN
CVE-2026-461388.1 HIGHBluetooth: hci_event: Fix OOB read and infinite loop in hci_le_create_big_complete_evt
CVE-2026-462328.1 HIGHHID: playstation: Clamp num_touch_reports
CVE-2026-461457.8 HIGHRDMA/mana: Validate rx_hash_key_len
CVE-2026-461817.8 HIGHRDMA/mlx4: Fix mis-use of RCU in mlx4_srq_event()
CVE-2026-462097.8 HIGHdrm/gem: Fix inconsistent plane dimension calculation in drm_gem_fb_init_with_funcs()

Showing top 20 of 138 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-46197

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