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Huawei EulerOS: CVE-2022-49030: kernel security update

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Huawei EulerOS: CVE-2022-49030: kernel security update

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
10/21/2024
Created
02/12/2025
Added
02/11/2025
Modified
02/11/2025

Description

In the Linux kernel, the following vulnerability has been resolved: libbpf: Handle size overflow for ringbuf mmap The maximum size of ringbuf is 2GB on x86-64 host, so 2 * max_entries will overflow u32 when mapping producer page and data pages. Only casting max_entries to size_t is not enough, because for 32-bits application on 64-bits kernel the size of read-only mmap region also could overflow size_t. So fixing it by casting the size of read-only mmap region into a __u64 and checking whether or not there will be overflow during mmap.

Solution(s)

  • huawei-euleros-2_0_sp12-upgrade-bpftool
  • huawei-euleros-2_0_sp12-upgrade-kernel
  • huawei-euleros-2_0_sp12-upgrade-kernel-abi-stablelists
  • huawei-euleros-2_0_sp12-upgrade-kernel-tools
  • huawei-euleros-2_0_sp12-upgrade-kernel-tools-libs
  • huawei-euleros-2_0_sp12-upgrade-python3-perf

References

  • https://attackerkb.com/topics/cve-2022-49030
  • CVE - 2022-49030
  • EulerOS-SA-2025-1192
  • 查看数 693
  • 已创建
  • 最后回复

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