kernel (SL7)

Synopsis: Important: kernel security and bug fix update
Advisory ID: SLSA-2021:2314-1
Issue Date: 2021-06-09
CVE Numbers: CVE-2020-8648

Security Fix(es):

* kernel: Integer overflow in Intel(R) Graphics Drivers (CVE-2020-12362)

* kernel: Use after free via PI futex state (CVE-2021-3347)

* kernel: use-after-free in n_tty_receive_buf_common function in
drivers/tty/n_tty.c (CVE-2020-8648)

* kernel: Improper input validation in some Intel(R) Graphics Drivers

* kernel: Null pointer dereference in some Intel(R) Graphics Drivers

* kernel: Speculation on pointer arithmetic against bpf_context pointer

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE

Bug Fix(es):

* kernel crash when call the timer function
(sctp_generate_proto_unreach_event) of sctp module

* SCSI error handling process on HP P440ar controller gets stuck
indefinitely in device reset operation

* netfilter: reproducible deadlock on nft_log module autoload

* netfilter: NULL pointer dereference in nf_tables_set_lookup()

* [DELL EMC 7.9 Bug]: No acpi_pad threads on top command for “power cap
policy equal to 0 watts”

* 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.

* netxen driver performs poorly with RT kernel

* gendisk->disk_part_tbl->last_lookup retains pointer after partition

* Kernel experiences panic in update_group_power() due to division error
even with Bug 1701115 fix

* SL7.9 – zfcp: fix handling of FCP_RESID_OVER bit in fcp ingress path

* SL7.9 – mm/THP: do not access vma->vm_mm after calling handle_userfault

* raid: wrong raid io account

* qla2x00_status_cont_entry() missing upstream patch that prevents
unnecessary ABRT/warnings

* SL 7.9.z – System hang caused by workqueue stall in qla2xxx driver

* selinux: setsebool can trigger a deadlock

* [Hyper-V][SL-7] Cannot boot kernel 3.10.0-1160.21.1.el7.x86_64 on

– bpftool-3.10.0-1160.31.1.el7.x86_64.rpm
– bpftool-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
– kernel-3.10.0-1160.31.1.el7.x86_64.rpm
– kernel-debug-3.10.0-1160.31.1.el7.x86_64.rpm
– kernel-debug-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
– kernel-debug-devel-3.10.0-1160.31.1.el7.x86_64.rpm
– kernel-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
– kernel-debuginfo-common-x86_64-3.10.0-1160.31.1.el7.x86_64.rpm
– kernel-devel-3.10.0-1160.31.1.el7.x86_64.rpm
– kernel-headers-3.10.0-1160.31.1.el7.x86_64.rpm
– kernel-tools-3.10.0-1160.31.1.el7.x86_64.rpm
– kernel-tools-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
– kernel-tools-libs-3.10.0-1160.31.1.el7.x86_64.rpm
– kernel-tools-libs-devel-3.10.0-1160.31.1.el7.x86_64.rpm
– perf-3.10.0-1160.31.1.el7.x86_64.rpm
– perf-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
– python-perf-3.10.0-1160.31.1.el7.x86_64.rpm
– python-perf-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
– kernel-abi-whitelists-3.10.0-1160.31.1.el7.noarch.rpm
– kernel-doc-3.10.0-1160.31.1.el7.noarch.rpm

– Scientific Linux Development Team