CVE-2026-46006

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

VendorProductVersion RangeStatus
LinuxLinuxa1606a9596e54da90ad6209071b357a4c1b0fa82 < 3429275684f4bad42876955301f3c5c814aae909affected
LinuxLinuxa1606a9596e54da90ad6209071b357a4c1b0fa82 < 573a1104bd36e49c067a9dc62e7c476d5ee7e92aaffected
LinuxLinuxa1606a9596e54da90ad6209071b357a4c1b0fa82 < 45a45184b9c0b0b26ead06e370cda2073616a7ccaffected
LinuxLinuxa1606a9596e54da90ad6209071b357a4c1b0fa82 < fa297e919d1680c38ab268ff952b1698dac987f6affected
LinuxLinuxa1606a9596e54da90ad6209071b357a4c1b0fa82 < d749a9a0ee4014681487e7ae549901aa8c176637affected
LinuxLinuxa1606a9596e54da90ad6209071b357a4c1b0fa82 < 332884f5eb79dd60a7162b079d09d39208567a31affected
LinuxLinuxa1606a9596e54da90ad6209071b357a4c1b0fa82 < e441d5c23ec644c8d27593db3b8928e8933512a9affected
LinuxLinuxa1606a9596e54da90ad6209071b357a4c1b0fa82 < 2fc87d37be1b730a149b035f9375fdb8cc5333a5affected
LinuxLinux2.6.34affected
LinuxLinux0 < 2.6.34unaffected
LinuxLinux5.10.259 <= 5.10.*unaffected
LinuxLinux5.15.209 <= 5.15.*unaffected
LinuxLinux6.1.175 <= 6.1.*unaffected
LinuxLinux6.6.140 <= 6.6.*unaffected
LinuxLinux6.12.86 <= 6.12.*unaffected
LinuxLinux6.18.27 <= 6.18.*unaffected
LinuxLinux7.0.4 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References