Huawei EulerOS: CVE-2024-36000: kernel security update
Description
In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix missing hugetlb_lock for resv uncharge There is a recent report on UFFDIO_COPY over hugetlb: https://lore.kernel.org/all/000000000000ee06de0616177560@google.com/ 350: lockdep_assert_held(&hugetlb_lock); Should be an issue in hugetlb but triggered in an userfault context, where it goes into the unlikely path where two threads modifying the resv map together. Mike has a fix in that path for resv uncharge but it looks like the locking criteria was overlooked: hugetlb_cgroup_uncharge_folio_rsvd() will update the cgroup pointer, so it requires to be called with the lock held.
Solution(s)
- huawei-euleros-2_0_sp11-upgrade-bpftool
- huawei-euleros-2_0_sp11-upgrade-kernel
- huawei-euleros-2_0_sp11-upgrade-kernel-abi-stablelists
- huawei-euleros-2_0_sp11-upgrade-kernel-tools
- huawei-euleros-2_0_sp11-upgrade-kernel-tools-libs
- huawei-euleros-2_0_sp11-upgrade-python3-perf
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