RHSA-2021:2314: Important: kernel security and bug fix update

First published: Tue Jun 08 2021(Updated: )

The kernel packages contain the Linux kernel, the core of any Linux operating system.<br>Security Fix(es):<br><li> kernel: Integer overflow in Intel(R) Graphics Drivers (CVE-2020-12362)</li> <li> kernel: Use after free via PI futex state (CVE-2021-3347)</li> <li> kernel: use-after-free in n_tty_receive_buf_common function in drivers/tty/n_tty.c (CVE-2020-8648)</li> <li> kernel: Improper input validation in some Intel(R) Graphics Drivers (CVE-2020-12363)</li> <li> kernel: Null pointer dereference in some Intel(R) Graphics Drivers (CVE-2020-12364)</li> <li> kernel: Speculation on pointer arithmetic against bpf_context pointer (CVE-2020-27170)</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> kernel crash when call the timer function (sctp_generate_proto_unreach_event) of sctp module (BZ#1707184)</li> <li> SCSI error handling process on HP P440ar controller gets stuck indefinitely in device reset operation (BZ#1830268)</li> <li> netfilter: reproducible deadlock on nft_log module autoload (BZ#1858329)</li> <li> netfilter: NULL pointer dereference in nf_tables_set_lookup() (BZ#1873171)</li> <li> [DELL EMC 7.9 Bug]: No acpi_pad threads on top command for "power cap policy equal to 0 watts" (BZ#1883174)</li> <li> A race between i40e_ndo_set_vf_mac() and i40e_vsi_clear() in the i40e driver causes a use after free condition of the kmalloc-4096 slab cache. (BZ#1886003)</li> <li> netxen driver performs poorly with RT kernel (BZ#1894274)</li> <li> gendisk-&gt;disk_part_tbl-&gt;last_lookup retains pointer after partition deletion (BZ#1898596)</li> <li> Kernel experiences panic in update_group_power() due to division error even with Bug 1701115 fix (BZ#1910763)</li> <li> RHEL7.9 - zfcp: fix handling of FCP_RESID_OVER bit in fcp ingress path (BZ#1917839)</li> <li> RHEL7.9 - mm/THP: do not access vma-&gt;vm_mm after calling handle_userfault (BZ#1917840)</li> <li> raid: wrong raid io account (BZ#1927106)</li> <li> qla2x00_status_cont_entry() missing upstream patch that prevents unnecessary ABRT/warnings (BZ#1933784)</li> <li> RHEL 7.9.z - System hang caused by workqueue stall in qla2xxx driver (BZ#1937945)</li> <li> selinux: setsebool can trigger a deadlock (BZ#1939091)</li> <li> [Hyper-V][RHEL-7] Cannot boot kernel 3.10.0-1160.21.1.el7.x86_64 on Hyper-V (BZ#1941841)</li>

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