CVE-2024-38603

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drivers/perf: hisi: hns3: en realidad usa devm_add_action_or_reset() pci_alloc_irq_vectors() asigna un vector irq. Cuando devm_add_action() falla, el vector irq no se libera, lo que provoca una pérdida de memoria. Reemplace devm_add_action con devm_add_action_or_reset para garantizar que el vector irq pueda destruirse cuando falla.

In the Linux kernel, the following vulnerability has been resolved: drivers/perf: hisi: hns3: Actually use devm_add_action_or_reset() pci_alloc_irq_vectors() allocates an irq vector. When devm_add_action() fails, the irq vector is not freed, which leads to a memory leak. Replace the devm_add_action with devm_add_action_or_reset to ensure the irq vector can be destroyed when it fails.

Benedict Schlüter, Supraja Sridhara, Andrin Bertschi, and Shweta Shinde discovered that an untrusted hypervisor could inject malicious #VC interrupts and compromise the security guarantees of AMD SEV-SNP. This flaw is known as WeSee. A local attacker in control of the hypervisor could use this to expose sensitive information or possibly execute arbitrary code in the trusted execution environment. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.