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CVE-2025-38703— drm/xe: Make dma-fences compliant with the safe access rules

EPSS 0.02% · P5
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I. Basic Information for CVE-2025-38703

Vulnerability Information
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Vulnerability Title
drm/xe: Make dma-fences compliant with the safe access rules
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/xe: Make dma-fences compliant with the safe access rules Xe can free some of the data pointed to by the dma-fences it exports. Most notably the timeline name can get freed if userspace closes the associated submit queue. At the same time the fence could have been exported to a third party (for example a sync_fence fd) which will then cause an use- after-free on subsequent access. To make this safe we need to make the driver compliant with the newly documented dma-fence rules. Driver has to ensure a RCU grace period between signalling a fence and freeing any data pointed to by said fence. For the timeline name we simply make the queue be freed via kfree_rcu and for the shared lock associated with multiple queues we add a RCU grace period before freeing the per GT structure holding the lock.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
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XE DMA围栏未遵循安全访问规则。
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 dd08ebf6c3525a7ea2186e636df064ea47281987 ~ b17fcce70733c211cb5dabf54f4f9491920b1d92 -
LinuxLinux 6.8 -

II. Public POCs for CVE-2025-38703

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III. Intelligence Information for CVE-2025-38703

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Same Patch Batch · Linux · 2025-09-04 · 52 CVEs total

CVE-2025-38693media: dvb-frontends: w7090p: fix null-ptr-deref in w7090p_tuner_write_serpar and w7090p_t
CVE-2025-38679media: venus: Fix OOB read due to missing payload bound check
CVE-2025-38680media: uvcvideo: Fix 1-byte out-of-bounds read in uvc_parse_format()
CVE-2025-38685fbdev: Fix vmalloc out-of-bounds write in fast_imageblit
CVE-2025-38682i2c: core: Fix double-free of fwnode in i2c_unregister_device()
CVE-2025-38683hv_netvsc: Fix panic during namespace deletion with VF
CVE-2025-38684net/sched: ets: use old 'nbands' while purging unused classes
CVE-2025-38681mm/ptdump: take the memory hotplug lock inside ptdump_walk_pgd()
CVE-2025-38692exfat: add cluster chain loop check for dir
CVE-2025-38694media: dvb-frontends: dib7090p: fix null-ptr-deref in dib7090p_rw_on_apb()
CVE-2025-38690drm/xe/migrate: prevent infinite recursion
CVE-2025-38695scsi: lpfc: Check for hdwq null ptr when cleaning up lpfc_vport structure
CVE-2025-38696MIPS: Don't crash in stack_top() for tasks without ABI or vDSO
CVE-2025-38697jfs: upper bound check of tree index in dbAllocAG
CVE-2025-38699scsi: bfa: Double-free fix
CVE-2025-38698jfs: Regular file corruption check
CVE-2025-38700scsi: libiscsi: Initialize iscsi_conn->dd_data only if memory is allocated
CVE-2025-38701ext4: do not BUG when INLINE_DATA_FL lacks system.data xattr
CVE-2025-38702fbdev: fix potential buffer overflow in do_register_framebuffer()
CVE-2025-38704rcu/nocb: Fix possible invalid rdp's->nocb_cb_kthread pointer access

Showing top 20 of 52 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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