CVE-2026-72476
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 0f571515c332e00b3515dbe0859ceaa30ab66e00 < 444f96066937f3fdf0e79b53289cff223c7d638b | affected |
| Linux | Linux | 0f571515c332e00b3515dbe0859ceaa30ab66e00 < ab438a9efb9042c79d2f8db28a326d55feb8591f | affected |
| Linux | Linux | 0f571515c332e00b3515dbe0859ceaa30ab66e00 < 9bdc8dce4068dadbdf7cf5ad6d4983e2afffedce | affected |
| Linux | Linux | 0f571515c332e00b3515dbe0859ceaa30ab66e00 < 5876f38b67a309c00628942cb25679749b53b397 | affected |
| Linux | Linux | 0f571515c332e00b3515dbe0859ceaa30ab66e00 < 3b0240483dc977dbec4f3bc7a5383d4691ecb625 | affected |
| Linux | Linux | 0f571515c332e00b3515dbe0859ceaa30ab66e00 < 329ec20a86091d2a6e5b4fe507545e7d678a22a2 | affected |
| Linux | Linux | 0f571515c332e00b3515dbe0859ceaa30ab66e00 < 0bc191050c3253da8ef4bfaf157c44efed6e22cd | affected |
| Linux | Linux | 0f571515c332e00b3515dbe0859ceaa30ab66e00 < 92f853f0645aebf1d05d333e97ab7c342ace1892 | affected |
| Linux | Linux | 2.6.30 | affected |
| Linux | Linux | 0 < 2.6.30 | unaffected |
| Linux | Linux | 5.10.261 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.212 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.178 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.145 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.97 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.40 <= 6.18.* | unaffected |
| Linux | Linux | 7.1.5 <= 7.1.* | unaffected |
| Linux | Linux | 7.2 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/444f96066937f3fdf0e79b53289cff223c7d638b
- https://git.kernel.org/stable/c/ab438a9efb9042c79d2f8db28a326d55feb8591f
- https://git.kernel.org/stable/c/9bdc8dce4068dadbdf7cf5ad6d4983e2afffedce
- https://git.kernel.org/stable/c/5876f38b67a309c00628942cb25679749b53b397
- https://git.kernel.org/stable/c/3b0240483dc977dbec4f3bc7a5383d4691ecb625
- https://git.kernel.org/stable/c/329ec20a86091d2a6e5b4fe507545e7d678a22a2
- https://git.kernel.org/stable/c/0bc191050c3253da8ef4bfaf157c44efed6e22cd
- https://git.kernel.org/stable/c/92f853f0645aebf1d05d333e97ab7c342ace1892
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.