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Source: xen Version: 4.17.0+46-gaaf74a532c-1 Severity: grave Tags: security upstream X-Debbugs-Cc: carnil at debian.org, Debian Security Team <team at security.debian.org> Hi, The following vulnerabilities were published for xen. CVE-2022-42331[0]: | x86: speculative vulnerability in 32bit SYSCALL path Due to an | oversight in the very original Spectre/Meltdown security work | (XSA-254),

...is was observed with linux-kernel versions 5.10.179-3 and 6.1.38-2 (all combinations of domU and dom0) and xen 4.17.1+2-gb773c48e36-1. You can find a config snippet and "xl network-list" + "ip a" command output demonstrating the issue below. Booting the host with Xen 4.14.5+94-ge49571868d-1 restored the expected behaviour. Looking for relevant changes i found commit fce6999 [0] which changes the way libxl__device_list works, but i'm not sure that's the cause of this issue. Thanks for your help, Valentin [0] http://xenbits.xen.org/gitweb/?p=xen.git;a=commit;h=fce6999 S...