CVE-2026-46006
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:
drm/nouveau: fix u32 overflow in pushbuf reloc bounds check
nouveau_gem_pushbuf_reloc_apply() validates each relocation with
if (r->reloc_bo_offset + 4 > nvbo->bo.base.size)
but reloc_bo_offset is __u32 (uapi/drm/nouveau_drm.h) and the integer literal 4 promotes to unsigned int, so the addition is performed in 32 bits and wraps before the comparison against the size_t bo size.
Cast to u64 so the addition happens in 64-bit arithmetic.
[ Add Fixes: tag. - Danilo ]
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | a1606a9596e54da90ad6209071b357a4c1b0fa82 < 3429275684f4bad42876955301f3c5c814aae909 | affected |
| Linux | Linux | a1606a9596e54da90ad6209071b357a4c1b0fa82 < 573a1104bd36e49c067a9dc62e7c476d5ee7e92a | affected |
| Linux | Linux | a1606a9596e54da90ad6209071b357a4c1b0fa82 < 45a45184b9c0b0b26ead06e370cda2073616a7cc | affected |
| Linux | Linux | a1606a9596e54da90ad6209071b357a4c1b0fa82 < fa297e919d1680c38ab268ff952b1698dac987f6 | affected |
| Linux | Linux | a1606a9596e54da90ad6209071b357a4c1b0fa82 < d749a9a0ee4014681487e7ae549901aa8c176637 | affected |
| Linux | Linux | a1606a9596e54da90ad6209071b357a4c1b0fa82 < 332884f5eb79dd60a7162b079d09d39208567a31 | affected |
| Linux | Linux | a1606a9596e54da90ad6209071b357a4c1b0fa82 < e441d5c23ec644c8d27593db3b8928e8933512a9 | affected |
| Linux | Linux | a1606a9596e54da90ad6209071b357a4c1b0fa82 < 2fc87d37be1b730a149b035f9375fdb8cc5333a5 | affected |
| Linux | Linux | 2.6.34 | affected |
| Linux | Linux | 0 < 2.6.34 | unaffected |
| Linux | Linux | 5.10.259 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.209 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.175 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.140 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.86 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.27 <= 6.18.* | unaffected |
| Linux | Linux | 7.0.4 <= 7.0.* | unaffected |
| Linux | Linux | 7.1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/3429275684f4bad42876955301f3c5c814aae909
- https://git.kernel.org/stable/c/573a1104bd36e49c067a9dc62e7c476d5ee7e92a
- https://git.kernel.org/stable/c/45a45184b9c0b0b26ead06e370cda2073616a7cc
- https://git.kernel.org/stable/c/fa297e919d1680c38ab268ff952b1698dac987f6
- https://git.kernel.org/stable/c/d749a9a0ee4014681487e7ae549901aa8c176637
- https://git.kernel.org/stable/c/332884f5eb79dd60a7162b079d09d39208567a31
- https://git.kernel.org/stable/c/e441d5c23ec644c8d27593db3b8928e8933512a9
- https://git.kernel.org/stable/c/2fc87d37be1b730a149b035f9375fdb8cc5333a5
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