RHSA-2021:3548: Moderate: kernel security, bug fix, and enhancement update

First published: Wed Sep 15 2021(Updated: )

The kernel packages contain the Linux kernel, the core of any Linux operating system.<br>Security Fix(es):<br><li> kernel: SVM nested virtualization issue in KVM (AVIC support) (CVE-2021-3653)</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> RHEL8.4 Nightly[0308] - HST:STC950:Fleetwood: LPAR crashed during LPM: BUG at lib/locks.c:34! (using ibmvfc) (BZ#1969792)</li> <li> RHEL8.2 - s390/vtime: fix increased steal time accounting (BZ#1988386)</li> <li> [FJ8.4 Bug]: Installation of RHEL8.4 hang up on a Tatlow platform while loading intel_lpss_pci module. (BZ#1989560)</li> <li> kernel panic in drm_fb_helper_dirty_work() caused by a race condition qxl driver (BZ#1992839)</li> <li> [RHEL8.4] TIOCGSERIAL ioctl fails on serial device (BZ#1993872)</li> <li> RHEL8.4 Nightly[0208] - kernel panic when executing test case for persistent device configuration (using DASD) (BZ#1995206)</li> <li> Killing ceph daemon leaving an unhealthy ocs/ocp cluster (worker node/s NotReady) (BZ#1995862)</li> <li> ceph: potential data corruption in cephfs write_begin codepath (BZ#1996680)</li> <li> libceph: allow addrvecs with a single NONE/blank address (BZ#1996682)</li> <li> [iavf] traffic stops after host sets vf trust on (BZ#1997536)</li> <li> [ice][iavf] hit some call trace and system panic when create-remove-vfs in loop (BZ#1997538)</li> <li> Missing backport of IMA boot aggregate calculation in rhel 8.4 kernel (BZ#1997766)</li> <li> XArray tests broken for single processor (BZ#1997997)</li> <li> [RHEL-8.4] mlock() end up returning -EINVAL instead of -ENOMEM in rewriting the upper address bits. (BZ#1997998)</li> <li> Kernel panic at n_tty_set_termios+0x30 (BZ#1997999)</li> <li> [ice]BUG: scheduling while atomic: ifenslave/270215/0x00000200 (BZ#2000129)</li> <li> [ice]port lost connectivity after removing from bonding (BZ#2000130)</li> Enhancement(s):<br><li> [Mellanox 8.5 FEAT] mlx5: drivers update upto Linux v5.12 (BZ#1983681)</li>

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