An update for kernel is now available for openEuler-20.03-LTS-SP3 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2022-2070 Final 1.0 1.0 2022-11-11 Initial 2022-11-11 2022-11-11 openEuler SA Tool V1.0 2022-11-11 kernel security update An update for kernel is now available for openEuler-20.03-LTS-SP3. Security Fix(es): The vulnerability is a use-after-free that happens when an io_uring request is being processed on a registered file and the Unix GC runs and frees the io_uring fd and all the registered fds. The order at which the Unix GC processes the inflight fds may lead to registered fds be freed before the io_uring is released and has the chance to unregister and wait for such requests to finish. Reference: https://www.openwall.com/lists/oss-security/2022/10/18/4 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0091bfc81741b8d3aeb3b7ab8636f911b2de6e80(CVE-2022-2602) An update for kernel is now available for openEuler-20.03-LTS-SP3. openEuler Security has rated this update as having a security impact of medium. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section. Medium kernel https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-2070 https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2022-2602 https://nvd.nist.gov/vuln/detail/CVE-2022-2602 openEuler-20.03-LTS-SP3 kernel-devel-4.19.90-2211.2.0.0176.oe1.aarch64.rpm python3-perf-debuginfo-4.19.90-2211.2.0.0176.oe1.aarch64.rpm perf-4.19.90-2211.2.0.0176.oe1.aarch64.rpm python3-perf-4.19.90-2211.2.0.0176.oe1.aarch64.rpm kernel-4.19.90-2211.2.0.0176.oe1.aarch64.rpm bpftool-debuginfo-4.19.90-2211.2.0.0176.oe1.aarch64.rpm python2-perf-4.19.90-2211.2.0.0176.oe1.aarch64.rpm kernel-tools-devel-4.19.90-2211.2.0.0176.oe1.aarch64.rpm python2-perf-debuginfo-4.19.90-2211.2.0.0176.oe1.aarch64.rpm kernel-debuginfo-4.19.90-2211.2.0.0176.oe1.aarch64.rpm kernel-tools-debuginfo-4.19.90-2211.2.0.0176.oe1.aarch64.rpm kernel-source-4.19.90-2211.2.0.0176.oe1.aarch64.rpm bpftool-4.19.90-2211.2.0.0176.oe1.aarch64.rpm kernel-tools-4.19.90-2211.2.0.0176.oe1.aarch64.rpm perf-debuginfo-4.19.90-2211.2.0.0176.oe1.aarch64.rpm kernel-debugsource-4.19.90-2211.2.0.0176.oe1.aarch64.rpm kernel-4.19.90-2211.2.0.0176.oe1.src.rpm kernel-source-4.19.90-2211.2.0.0176.oe1.x86_64.rpm kernel-debugsource-4.19.90-2211.2.0.0176.oe1.x86_64.rpm python3-perf-4.19.90-2211.2.0.0176.oe1.x86_64.rpm bpftool-debuginfo-4.19.90-2211.2.0.0176.oe1.x86_64.rpm bpftool-4.19.90-2211.2.0.0176.oe1.x86_64.rpm kernel-4.19.90-2211.2.0.0176.oe1.x86_64.rpm python3-perf-debuginfo-4.19.90-2211.2.0.0176.oe1.x86_64.rpm perf-debuginfo-4.19.90-2211.2.0.0176.oe1.x86_64.rpm kernel-tools-debuginfo-4.19.90-2211.2.0.0176.oe1.x86_64.rpm perf-4.19.90-2211.2.0.0176.oe1.x86_64.rpm kernel-debuginfo-4.19.90-2211.2.0.0176.oe1.x86_64.rpm python2-perf-4.19.90-2211.2.0.0176.oe1.x86_64.rpm python2-perf-debuginfo-4.19.90-2211.2.0.0176.oe1.x86_64.rpm kernel-devel-4.19.90-2211.2.0.0176.oe1.x86_64.rpm kernel-tools-4.19.90-2211.2.0.0176.oe1.x86_64.rpm kernel-tools-devel-4.19.90-2211.2.0.0176.oe1.x86_64.rpm The vulnerability is a use-after-free that happens when an io_uring requestis being processed on a registered file and the Unix GC runs and frees theio_uring fd and all the registered fds. The order at which the Unix GCprocesses the inflight fds may lead to registered fds be freed before theio_uring is released and has the chance to unregister and wait for suchrequests to finish.Reference:https://www.openwall.com/lists/oss-security/2022/10/18/4https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0091bfc81741b8d3aeb3b7ab8636f911b2de6e80 2022-11-11 CVE-2022-2602 openEuler-20.03-LTS-SP3 Medium 6.5 AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:H kernel security update 2022-11-11 https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-2070