CVE-2026-45853drm/amdgpu: Use kvfree instead of kfree in amdgpu_gmc_get_nps_memranges()
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Use kvfree instead of kfree in amdgpu_gmc_get_nps_memranges() amdgpu_discovery_get_nps_info() internally allocates memory for ranges using kvcalloc(), which may use vmalloc() for large allocation. Using kfree() to release vmalloc memory will lead to a memory corruption. Use kvfree() to safely handle both kmalloc and vmalloc allocations. Compile tested only. Issue found using a prototype static analysis tool and code review.
- CVSS
- 7.8 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Analyzed
- Record last updated
- May 27, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from b194d21b9bcc15b50df1bc3ff7428e51c2918a6f before 16e7e7ad8cdc6b4c4af7f31e262f1494c1b2a55e; from b194d21b9bcc15b50df1bc3ff7428e51c2918a6f before 9ae85b0c1909b6c6bfd2636b04cdaf7f520bf2b5; from b194d21b9bcc15b50df1bc3ff7428e51c2918a6f before f441538893eba6347b983f2904819ca6c99da65e; from b194d21b9bcc15b50df1bc3ff7428e51c2918a6f before 0c44d61945c4a80775292d96460aa2f22e62f86c | CNA record |
linux linux_kernel linux:linux_kernel | from 6.11 before 6.12.75; from 6.13 before 6.18.14; from 6.19 before 6.19.4 | NVD |
References
- https://git.kernel.org/stable/c/16e7e7ad8cdc6b4c4af7f31e262f1494c1b2a55epatch
- https://git.kernel.org/stable/c/9ae85b0c1909b6c6bfd2636b04cdaf7f520bf2b5patch
- https://git.kernel.org/stable/c/f441538893eba6347b983f2904819ca6c99da65epatch
- https://git.kernel.org/stable/c/0c44d61945c4a80775292d96460aa2f22e62f86cpatch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.