Amazon Linux AMI 2: CVE-2021-47088: Security patch for kernel (Multiple Advisories)
Description
In the Linux kernel, the following vulnerability has been resolved: mm/damon/dbgfs: protect targets destructions with kdamond_lock DAMON debugfs interface iterates current monitoring targets in 'dbgfs_target_ids_read()' while holding the corresponding 'kdamond_lock'. However, it also destructs the monitoring targets in 'dbgfs_before_terminate()' without holding the lock. This can result in a use_after_free bug. This commit avoids the race by protecting the destruction with the corresponding 'kdamond_lock'.
Solution(s)
- amazon-linux-ami-2-upgrade-bpftool
- amazon-linux-ami-2-upgrade-bpftool-debuginfo
- amazon-linux-ami-2-upgrade-kernel
- amazon-linux-ami-2-upgrade-kernel-debuginfo
- amazon-linux-ami-2-upgrade-kernel-debuginfo-common-aarch64
- amazon-linux-ami-2-upgrade-kernel-debuginfo-common-x86_64
- amazon-linux-ami-2-upgrade-kernel-devel
- amazon-linux-ami-2-upgrade-kernel-headers
- amazon-linux-ami-2-upgrade-kernel-livepatch-5-10-106-102-504
- amazon-linux-ami-2-upgrade-kernel-tools
- amazon-linux-ami-2-upgrade-kernel-tools-debuginfo
- amazon-linux-ami-2-upgrade-kernel-tools-devel
- amazon-linux-ami-2-upgrade-perf
- amazon-linux-ami-2-upgrade-perf-debuginfo
- amazon-linux-ami-2-upgrade-python-perf
- amazon-linux-ami-2-upgrade-python-perf-debuginfo
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