It exists that the implementation of POSIX timers in the Linux kernel did not properly clean up timers in some situations. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-2585) ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well.
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xen xen - |
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debian debian linux 11.0 |
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fedoraproject fedora 35 |
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fedoraproject fedora 36 |
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Topics Security Off-Prem On-Prem Software Offbeat Vendor Voice Vendor Voice Resources Speculative execution side-channels continue to haunt silicon world
Older AMD and Intel chips are vulnerable to yet another Spectre-based speculative-execution attack that exposes secrets within kernel memory despite defenses already in place. Mitigating this side channel is expected to take a toll on performance. ETH Zurich computer scientists Johannes Wikner and Kaveh Razavi have dubbed the attack Retbleed, which they describe as an addition to the family of speculative-execution flaws known as Spectre-BTI (variant 2) that can be exploited by branch target inj...