CVE-2023-46813 | An issue was discovered in the Linux kernel before 6.5.9, exploitable by local users with userspace access to MMIO registers. Incorrect access checking in the #VC handler and instruction emulation of the SEV-ES emulation of MMIO accesses could lead to arbitrary write access to kernel memory (and thus privilege escalation). This depends on a race condition through which userspace can replace an instruction before the #VC handler reads it.
An issue was discovered in the Linux kernel before 6.5.9, exploitable by local users with userspace access to MMIO registers. Incorrect access checking in the #VC handler and instruction emulation of the SEV-ES emulation of MMIO accesses could lead to arbitrary write access to kernel memory (and thus privilege escalation). This depends on a race condition through which userspace can replace an instruction before the #VC handler reads it.
- 🔗 bugzilla.suse.com/show_bug.cgi
- 🔗 git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.g…
- 🔗 git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.g…
- 🔗 git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.g…
- 🔗 cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.9
- 🔗 lists.debian.org/debian-lts-announce/2024/01/msg00005.html
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CVE-2023-46813 | An issue was discovered in the Linux kernel before 6.5.9, exploitable by local users with userspace access to MMIO registers. Incorrect access checking in the #VC handler and instruction emulation of the SEV-ES emulation of MMIO accesses could lead to arbitrary write access to kernel memory (and thus privilege escalation). This depends on a race condition through which userspace can replace an instruction before the #VC handler reads it.
An issue was discovered in the Linux kernel before 6.5.9, exploitable by local users with userspace access to MMIO registers. Incorrect access checking in the #VC handler and instruction emulation of the SEV-ES emulation of MMIO accesses co