{
  "cveId": "CVE-2020-12657",
  "url": "https://patchblox.com/security/cve/CVE-2020-12657",
  "summary": "CVE-2020-12657 is fixed in 47 products on 1 platform, first by RHSA-2020:2427, released June 9, 2020. It is not reported as exploited. Patch Radar priority: High.",
  "title": "perf: The kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* kernel: u...",
  "description": "The kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* kernel: use-after-free in block/bfq-iosched.c related to bfq_idle_slice_timer_body (CVE-2020-12657)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nBug Fix(es):\n\n* kernel: hw: provide reporting and microcode mitigation toggle for CVE-2020-0543 / Special Register Buffer Data Sampling (SRBDS) (BZ#1827191)\n\n* ipsec interfaces: fix sending with bpf_redirect() / AF_PACKET sockets (BZ#1821375)\n\n* IB/core: deadlock on rdma_nl_mutex when netlink triggers on-demand modprobe rdma_cm (BZ#1821381)\n\n* dm: fix excessive bio splitting that results in performance regressions (BZ#1821382)\n\n* system time jumps when hotplug vcpu on a long uptime guest (BZ#1822498)\n\n* [DELL 8.2 BUG]Ethernet : e1000e doesn\u0027t work after S2I (BZ#1825262)\n\n* NFSv3 sec=krb5p fails against an ONTAP server (BZ#1826219)\n\n* Stand-alone CPU Linpack test reports bad residual on HPC Cluster node(s) while running RHEL 8 (BZ#1827619)\n\n* [DELL 8.2 BUG]bluetooth Scanning  block S3 and  Suspend to idle (BZ#1827620)\n\n* RHEL8.2 Beta - SMC-R connection with vlan-id fails (BZ#1827631)\n\n* RHEL8.1 - RHEL8.1 kernel 4.18.0-147.3.1.el8.bz181950_test001.ppc64le\u002Bdebug failed during LPM test (p8/p9):idahop08:LPM (vtpm) (BZ#1827632)\n\n* missing version.h dependency for modpost may cause build to fail (BZ#1828229)\n\n* efi: kernel panic during ltp fs test - read_all -d /sys -q -r 10 (BZ#1829527)\n\n* Let \u0022isolcpus=\u0022 skip unknown sub-parameters (BZ#1832367)\n\n* RHEL8.0 - Very bad performance with small blocks in FC-IO found by SAP HANA on POWER tests on RHEL8.0 (compared to RHEL7.4) (BZ#1834517)\n\n* [FJ8.2 Bug]: [REG] NFS-client panic at nfs4_get_valid_delegation\u002B0x1c/0x40 [nfsv4] (BZ#1837969)\n\n* [RHEL-8.3] upstream bonding driver refresh (BZ#1838477)\n\n* Enable xt_u32 module (BZ#1840799)\n\n* Move xt_u32 module to kernel-modules-extra (BZ#1840800)",
  "published": "2020-06-09T00:00:00Z",
  "severity": "Important",
  "cvss": 7.8,
  "epss": 0.00711,
  "epssPercentile": 0.53801,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
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