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CVE-2026-99149— drm/amdgpu: fix GEM object leak on ENOMEM in userptr ioctl

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，以下漏洞已得到修复： drm/amdgpu：修复 userptr ioctl 中因 ENOMEM 导致的 GEM 对象泄漏问题当 amdgpu_hmm_range_alloc() 调用失败时，amdgpu_gem_userptr_ioctl() 会立即返回 -ENOMEM，从而跳过了其他错误路径所执行的清理步骤。这导致 GEM 对象、VM 根节点上的 bo->parent 引用以及 MMU 通知器注册均未被正确释放，造成资源泄漏。修复方案：在此处使用 release_object 而非

AI Predicted 5.5 Difficulty: Moderate Updated Oct 28, 2026

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 6

Vendor	Product	Version Range	Status
Linux	Linux	`e095b55155ef69a8ae0eb114a7fd2a381c012f33< 64a6d40156ae98caafc922c6d79fe202b0acd836`	affected
		`e095b55155ef69a8ae0eb114a7fd2a381c012f33< 3c516a5646285442e1cd71dff2584b77eb4fc421`	affected
		`6.19`	affected
		`< 6.19`	unaffected
		`7.2.13≤ 7.2.*`	unaffected
		`7.3≤ *`	unaffected

Updated Oct 28, 2026

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Vulnerability Information

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Vulnerability Title

drm/amdgpu: fix GEM object leak on ENOMEM in userptr ioctl

Source: CVE Program / CVE List V5

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix GEM object leak on ENOMEM in userptr ioctl When amdgpu_hmm_range_alloc() fails amdgpu_gem_userptr_ioctl() returns -ENOMEM right away and skips the cleanup every other error path goes through. The GEM object, the bo->parent reference on the VM root and the MMU notifier registration are all left behind. Use release_object here, not user_pages_done, range is still NULL at this point. (cherry picked from commit bbe739e407a542073ec1a7872b14843566b4919e)

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

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
Linux	Linux	e095b55155ef69a8ae0eb114a7fd2a381c012f33 ~ 64a6d40156ae98caafc922c6d79fe202b0acd836	-
Linux	Linux	6.19	-

II. Public POCs for CVE-2026-99149

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2026-99149

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Patches & Fixes for CVE-2026-99149 (2)

https://www.cve.org/CVERecord?id=CVE-2026-99149

Same Patch Batch · Linux · 2026-10-28 · 117 CVEs total

CVE-2026-99143		tracing: Keep the predicate limit separate from program capacity
CVE-2026-99129		selinux: fix BPF token permission checks
CVE-2026-99130		io_uring/cancel: don't spin on local work the task can't run
CVE-2026-99131		xfs: fix capability check in xfs
CVE-2026-99133		net/iucv: fix the recvmsg window update
CVE-2026-99132		xfs: don't hold buffer locks across sync transaction commit in xfs_sync_sb_buf
CVE-2026-99134		mac802154: fix data race and NULL deref on local->assoc_dev
CVE-2026-99135		dm-integrity: fix infinite loop on discard with large tag size
CVE-2026-99137		cifs: don't update i_size in cifs_do_truncate without a cached handle
CVE-2026-99136		dm-crypt: fix a tiny race condition in crypt_dec_pending
CVE-2026-99138		tcp: fix use-after-free in do_tcp_getsockopt(TCP_CC_INFO)
CVE-2026-99140		tracing: Fix hist trigger timestamps for buffered events
CVE-2026-99139		tcp: fix use-after-free in do_tcp_getsockopt(TCP_CONGESTION)
CVE-2026-99141		tracing: Fix crash in print_graph_function_event()
CVE-2026-99142		tracing: Check operator stack capacity before pushing
CVE-2026-99156		scsi: st: Fix use-after-free race between st_remove() and st_open()
CVE-2026-99153		scsi: libiscsi: Validate the ITT reflected in a Reject PDU
CVE-2026-99152		scsi: libiscsi: Validate the task named by a management response
CVE-2026-99154		scsi: libiscsi: Reject a negative task index from parse_pdu_itt
CVE-2026-99151		drm/amd/display: Fix NULL sink dereference in USB4 bandwidth functions

Showing top 20 of 117 CVEs. View all on vendor page → →

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