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

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• linux linux kernel6.8 and later · before 6.12.43
• linux linux kernel6.13 and later · before 6.15.11
• linux linux kernel6.16 and later · before 6.16.2

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

• Linux Linux

  • 6.8affected
  • dd08ebf6c3525a7ea2186e636df064ea47281987 and later · before b17fcce70733c211cb5dabf54f4f9491920b1d92affected · git
  • dd08ebf6c3525a7ea2186e636df064ea47281987 and later · before ba37807d08bae67de6139346a85650cab5f6145aaffected · git
  • dd08ebf6c3525a7ea2186e636df064ea47281987 and later · before 683b0e397dad9f26a42dcacf6f7f545a77ce6c06affected · git
  • dd08ebf6c3525a7ea2186e636df064ea47281987 and later · before 6bd90e700b4285e6a7541e00f969cab0d696addeaffected · git
  • before 6.8not affected · semver
  • 6.12.43 and later · up to and including 6.12.*not affected · semver
  • 6.15.11 and later · up to and including 6.15.*not affected · semver
  • 6.16.2 and later · up to and including 6.16.*not affected · semver
  • 6.17 and laternot affected · original_commit_for_fix

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Other highest-scoring records for the same primary product.

• CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
  90Now
• CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
  89Now
• CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
  85Now

Published before and after this one in the same product

• ← EarlierCVE-2025-38701Sep 4, 2025 · ext4: do not BUG when INLINE_DATA_FL lacks system.data xattr
  22Monitor
• ← EarlierCVE-2025-38702Sep 4, 2025 · fbdev: fix potential buffer overflow in do_register_framebuffer()
  31Monitor
• Later →CVE-2025-38704Sep 4, 2025 · rcu/nocb: Fix possible invalid rdp's->nocb_cb_kthread pointer access
  31Monitor

Root cause

After a memory region is freed, another reference pointing to it is still used. By then, the same region may have been allocated for different data.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1free(dev->buf);2/* ... another thread is still running ... */3process(dev->buf);

1lock(&dev->lock);2free(dev->buf);3dev->buf = NULL;4unlock(&dev->lock);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.