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CVE-2026-72476

dmaengine: Fix possible use after free

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.261, 5.15.212, 6.1.178, 6.6.145, 6.12.97, and 2 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: dmaengine: Fix possible use after free In dma_release_channel(), check chan->device->privatecnt after call dma_chan_put(). However, dma_chan_put() call dma_device_put() which could release the last reference of the device if the DMA provider is already gone and hence free it. Fixes it by moving dma_chan_put() after the check.

Timeline

  1. CVE published
  2. CISA SSVC assessment

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

  3. Record last updated

Affected versions

  • Linux Linux

    From 0f571515c332e00b3515dbe0859ceaa30ab66e00 · fixed in 444f96066937f3fdf0e79b53289cff223c7d638b; From 0f571515c332e00b3515dbe0859ceaa30ab66e00 · fixed in ab438a9efb9042c79d2f8db28a326d55feb8591f; From 0f571515c332e00b3515dbe0859ceaa30ab66e00 · fixed in 9bdc8dce4068dadbdf7cf5ad6d4983e2afffedce; From 0f571515c332e00b3515dbe0859ceaa30ab66e00 · fixed in 5876f38b67a309c00628942cb25679749b53b397; From 0f571515c332e00b3515dbe0859ceaa30ab66e00 · fixed in 3b0240483dc977dbec4f3bc7a5383d4691ecb625; From 0f571515c332e00b3515dbe0859ceaa30ab66e00 · fixed in 329ec20a86091d2a6e5b4fe507545e7d678a22a2; From 0f571515c332e00b3515dbe0859ceaa30ab66e00 · fixed in 0bc191050c3253da8ef4bfaf157c44efed6e22cd; From 0f571515c332e00b3515dbe0859ceaa30ab66e00 · fixed in 92f853f0645aebf1d05d333e97ab7c342ace1892

  • Linux Linux

    2.6.30

  • KernelLinux

    From 2.6.30 · fixed in 5.10.261; From 5.11.0 · fixed in 5.15.212; From 5.16.0 · fixed in 6.1.178; From 6.2.0 · fixed in 6.6.145; From 6.7.0 · fixed in 6.12.97; From 6.13.0 · fixed in 6.18.40; From 6.19.0 · fixed in 7.1.5

References 8

git.kernel.org