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CVE-2026-68243— drm/i915/gem: Fix NULL deref in I915_CONTEXT_PARAM_SSEU

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 5.15版本存在安全漏洞，该漏洞源于将上下文引擎槽N设置为I915_ENGINE_CLASS_INVALID或I915_ENGINE_CLASS_INVALID_NONE并尝试对同一槽N应用I915_CONTEXT_PARAM_SSEU参数，可能导致空指针取消引用。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.17% · P7

Possible ATT&CK Techniques 1 AI

T1211 · Exploitation for Stealth

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux d4433c7600f794623d6802395542cf4ca4f1b1f9< 97a4872ef927dee301d76085cb19f6e36d4a53a4 affected
d4433c7600f794623d6802395542cf4ca4f1b1f9< b226dee4ee1fff2909f79e8ad700b7082f8d3569 affected
d4433c7600f794623d6802395542cf4ca4f1b1f9< edd2edaca52ada833c341c8b264aaea9dd93369c affected
d4433c7600f794623d6802395542cf4ca4f1b1f9< 9923c223d38fcd9602f41cc31d480e5299d9a38e affected
d4433c7600f794623d6802395542cf4ca4f1b1f9< 726f27bca93e6c83b263542669132ee1d0eb693e affected
d4433c7600f794623d6802395542cf4ca4f1b1f9< 97f236379f06a5082d37c6a764edd56bb58a94cd affected
d4433c7600f794623d6802395542cf4ca4f1b1f9< 2b56757a9a7456825eb668fde92299e01c5e2721 affected
5.15 affected
… +8 more rows
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I. Basic Information for CVE-2026-68243

Vulnerability Information
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Vulnerability Title
drm/i915/gem: Fix NULL deref in I915_CONTEXT_PARAM_SSEU
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/i915/gem: Fix NULL deref in I915_CONTEXT_PARAM_SSEU Setting context engine slot N into I915_ENGINE_CLASS_INVALID / I915_ENGINE_CLASS_INVALID_NONE and attempting to apply I915_CONTEXT_PARAM_SSEU to the same slot N will deref NULL. Fix that. Discovered using AI-assisted static analysis confirmed by Intel Product Security. (cherry picked from commit 36eda5b5c2d40da41cc0a5403c26986237cf9e87)
Source: CVE Program / CVE List V5
CVSS Information
N/A
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 5.15版本存在安全漏洞，该漏洞源于将上下文引擎槽N设置为I915_ENGINE_CLASS_INVALID或I915_ENGINE_CLASS_INVALID_NONE并尝试对同一槽N应用I915_CONTEXT_PARAM_SSEU参数，可能导致空指针取消引用。
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 d4433c7600f794623d6802395542cf4ca4f1b1f9 ~ 97a4872ef927dee301d76085cb19f6e36d4a53a4 -
Linux Linux 5.15 -

II. Public POCs for CVE-2026-68243

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III. Intelligence Information for CVE-2026-68243

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Patches & Fixes for CVE-2026-68243 (7)

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

CVE-2026-68388 9.8 CRITICAL smb/client: handle overlapping allocated ranges in fallocate
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-2026-68144 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-2026-68123 9.8 CRITICAL openvswitch: fix GSO userspace truncation underflow
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-2026-68160 9.8 CRITICAL ceph: fix pre-auth out-of-bounds read on snaptrace in ceph_handle_caps()
CVE-2026-68161 9.8 CRITICAL sctp: close UDP tunnel sockets during netns teardown
CVE-2026-68117 9.8 CRITICAL tipc: clear sock->sk on the failed-insert path in tipc_sk_create()
CVE-2026-68170 9.8 CRITICAL mptcp: fix stale skb->sk reference on subflow close
CVE-2026-68385 9.8 CRITICAL s390/checksum: Fix csum_partial() without vector facility
CVE-2026-68381 9.8 CRITICAL ksmbd: pin conn during async oplock break notification
CVE-2026-68302 9.8 CRITICAL amt: re-read skb header pointers after every pull
CVE-2026-68426 9.8 CRITICAL xfrm: fix stale skb->prev after async crypto steals a GSO segment
CVE-2026-68300 9.8 CRITICAL sctp: auth: verify auth requirement when auth_chunk is NULL
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

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