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CVE-2026-53020

um: Fix potential race condition in TLB sync PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: um: Fix potential race condition in TLB sync During the TLB sync, we need to traverse and modify the page table, so we should hold the page table lock. Since full SMP support for threads within the same process is still missing, let's disable the split page table lock for simplicity.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 1e4ee5135d814fe4785890790cec81c3132888fb before f21c343ec7419377bff89ab11146c03ae117036f; affected 1e4ee5135d814fe4785890790cec81c3132888fb before 102331b66bcaf1f41f50b9c4cd5c36e46bafa9f3
Linux / Linuxaffected 6.19; unaffected 0 before 6.19; unaffected 7.0.10 through 7.0.*; unaffected 7.1 through *

CWE

No CWE identifiers supplied.

References