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Oracle Linux: CVE-2021-47579: ELSA-2024-5101: kernel security update (IMPORTANT) (Multiple Advisories)

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Oracle Linux: CVE-2021-47579: ELSA-2024-5101:kernel security update (IMPORTANT) (Multiple Advisories)

Severity
4
CVSS
(AV:L/AC:H/Au:M/C:N/I:N/A:C)
Published
06/19/2024
Created
08/20/2024
Added
08/16/2024
Modified
11/29/2024

Description

In the Linux kernel, the following vulnerability has been resolved: ovl: fix warning in ovl_create_real() Syzbot triggered the following warning in ovl_workdir_create() -> ovl_create_real(): if (!err && WARN_ON(!newdentry->d_inode)) { The reason is that the cgroup2 filesystem returns from mkdir without instantiating the new dentry. Weird filesystems such as this will be rejected by overlayfs at a later stage during setup, but to prevent such a warning, call ovl_mkdir_real() directly from ovl_workdir_create() and reject this case early.

Solution(s)

  • oracle-linux-upgrade-kernel

References

  • https://attackerkb.com/topics/cve-2021-47579
  • CVE - 2021-47579
  • ELSA-2024-5101
  • 查看数 991
  • 已创建
  • 最后回复

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