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CVE-2026-72476

dmaengine: Fix possible use after free PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 0f571515c332e00b3515dbe0859ceaa30ab66e00 before 444f96066937f3fdf0e79b53289cff223c7d638b; affected 0f571515c332e00b3515dbe0859ceaa30ab66e00 before ab438a9efb9042c79d2f8db28a326d55feb8591f; affected 0f571515c332e00b3515dbe0859ceaa30ab66e00 before 9bdc8dce4068dadbdf7cf5ad6d4983e2afffedce; affected 0f571515c332e00b3515dbe0859ceaa30ab66e00 before 5876f38b67a309c00628942cb25679749b53b397; affected 0f571515c332e00b3515dbe0859ceaa30ab66e00 before 3b0240483dc977dbec4f3bc7a5383d4691ecb625; affected 0f571515c332e00b3515dbe0859ceaa30ab66e00 before 329ec20a86091d2a6e5b4fe507545e7d678a22a2; affected 0f571515c332e00b3515dbe0859ceaa30ab66e00 before 0bc191050c3253da8ef4bfaf157c44efed6e22cd; affected 0f571515c332e00b3515dbe0859ceaa30ab66e00 before 92f853f0645aebf1d05d333e97ab7c342ace1892
Linux / Linuxaffected 2.6.30; unaffected 0 before 2.6.30; unaffected 5.10.261 through 5.10.*; unaffected 5.15.212 through 5.15.*; unaffected 6.1.178 through 6.1.*; unaffected 6.6.145 through 6.6.*; unaffected 6.12.97 through 6.12.*; unaffected 6.18.40 through 6.18.*; unaffected 7.1.5 through 7.1.*; unaffected 7.2 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.