RHSA-2021:4777: Important: kernel security and bug fix update

First published: Tue Nov 23 2021(Updated: )

The kernel packages contain the Linux kernel, the core of any Linux operating system.<br>Security Fix(es):<br><li> kernel: use-after-free in drivers/infiniband/core/ucma.c ctx use-after-free (CVE-2020-36385)</li> 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.<br>Bug Fix(es):<br><li> scsi: ibmvfc: Avoid link down on FS9100 canister reboot (BZ#1882627)</li> <li> crash in qla2x00_status_entry() because of corrupt srb (BZ#1899599)</li> <li> qedf driver: race condition between qedf's completion work task and another work item tearing down an fcport with qedf_cleanup_fcport (BZ#1941766)</li> <li> The kernel crashes in hv_pci_remove_slots() upon hv device removal. A possible race between hv_pci_remove_slots() and pci_devices_present_work(). (BZ#1948961)</li> <li> I/O delays incorrectly handled in the NVMe stack (BZ#1981610)</li> <li> Data corruption in NFS client reusing slotid/seqid due to an interrupted slot (BZ#2007465)</li>

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