CVE-2024-46794

CVE-2024-46794: fallo en Linux

x86/tdx: Fix data leak in mmio_read()

Publicada el · Actualizada el

3Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackepss 0.2%
probabilidad de explotación
0.2%top 91% de las CVE
explotación observada
noninguna fuente lo reporta
In the Linux kernel, the following vulnerability has been resolved: x86/tdx: Fix data leak in mmio_read() The mmio_read() function makes a TDVMCALL to retrieve MMIO data for an address from the VMM. Sean noticed that mmio_read() unintentionally exposes the value of an initialized variable (val) on the stack to the VMM. This variable is only needed as an output value. It did not need to be passed to the VMM in the first place. Do not send the original value of *val to the VMM. [ dhansen: clarify what 'val' is used for. ]
Productos afectados
Linux · Linux
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Referencias
https://git.kernel.org/stable/c/26c6af49d26ffc377e392e30d4086db19eed0ef7https://git.kernel.org/stable/c/b55ce742afcb8e8189d82f2f1e635ba1b5a461fahttps://git.kernel.org/stable/c/b6fb565a2d15277896583d471b21bc14a0c99661https://git.kernel.org/stable/c/ef00818c50cf55a3a56bd9a9fae867c92dfb84e7https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html