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CVE-2025-38095

dma-buf: insert memory barrier before updating num_fences

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.241, 5.15.192, 6.1.140, 6.6.92, 6.12.30, and 1 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

In the Linux kernel, the following vulnerability has been resolved: dma-buf: insert memory barrier before updating num_fences smp_store_mb() inserts memory barrier after storing operation. It is different with what the comment is originally aiming so Null pointer dereference can be happened if memory update is reordered.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • Linux Linux

    From a590d0fdbaa56f482ff515e1040b6d9b1b200d63 · fixed in 90eb79c4ed98a4e24a62ccf61c199ab0f680fa8f; From a590d0fdbaa56f482ff515e1040b6d9b1b200d63 · fixed in d0b7f11dd68b593bd970e5735be00e8d89bace30; From a590d0fdbaa56f482ff515e1040b6d9b1b200d63 · fixed in 3becc659f9cb76b481ad1fb71f54d5c8d6332d3f; From a590d0fdbaa56f482ff515e1040b6d9b1b200d63 · fixed in c9d2b9a80d06a58f37e0dc8c827075639b443927; From a590d0fdbaa56f482ff515e1040b6d9b1b200d63 · fixed in fe1bebd0edb22e3536cbc920ec713331d1367ad4; From a590d0fdbaa56f482ff515e1040b6d9b1b200d63 · fixed in 08680c4dadc6e736c75bc2409d833f03f9003c51; From a590d0fdbaa56f482ff515e1040b6d9b1b200d63 · fixed in 72c7d62583ebce7baeb61acce6057c361f73be4a

  • Linux Linux

    5.0

  • KernelLinux

    From 5.0.0 · fixed in 5.10.241; From 5.11.0 · fixed in 5.15.192; From 5.16.0 · fixed in 6.1.140; From 6.2.0 · fixed in 6.6.92; From 6.7.0 · fixed in 6.12.30; From 6.13.0 · fixed in 6.14.8

References 7

git.kernel.org