CentOS: Security Advisory for bpftool (CESA-2021:3801)

The remote host is missing an update for the 'bpftool' package(s) announced via the CESA-2021:3801 advisory.

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: Improper handling of VM_IO<pipe>VM_PFNMAP vmas in KVM can bypass RO checks (CVE-2021-22543) * kernel: powerpc: KVM guest OS users can cause host OS memory corruption (CVE-2021-37576) * kernel: SVM nested virtualization issue in KVM (AVIC support) (CVE-2021-3653) * kernel: SVM nested virtualization issue in KVM (VMLOAD/VMSAVE) (CVE-2021-3656) For 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. Bug Fix(es): * Kernel panic due to double fault with DLM reporting for socket error 'sk_err=32/0' (BZ#1834878) * 'MFW indication via attention' message getting logged frequently after every 5 minutes (BZ#1854544) * lpfc fails to discovery in pt2pt with '2754 PRLI failure DID:0000EF Status:x9/x91e00, data: x0' (BZ#1922479) * pcpu_get_vm_areas using most memory from VmallocUsed (BZ#1970618) * RHEL 7.9.z [qedf driver] Racing condition between qedf_cleanup_fcport and releasing command after timeout (BZ#1982702) * [Azure] RHEL 7.9 reports GPU/IB topology incorrectly on some Azure SKUs (BZ#1984128) * [stable guest ABI]Hot add CPU after migration cause guest hang (BZ#1991856) * i40e driver crash at RIP: i40e_config_vf_promiscuous_mode+0x165 (BZ#1993850) * [nfs] Performance issue since commit 5a4f6f11951e (BZ#1995649) * [kernel] Indefinite waiting for RCU callback while removing cgroup (BZ#2000973)

'bpftool' package(s) on CentOS 7.

Checks if a vulnerable package version is present on the target host.

Please install the updated package(s).