RedHat: RHSA-2022-7444:01 Moderate: kernel-rt security and bug fix update
Summary
The kernel-rt packages provide the Real Time Linux Kernel, which enables
fine-tuning for systems with extremely high determinism requirements.
Security Fix(es):
* off-path attacker may inject data or terminate victim's TCP session
(CVE-2020-36516)
* Race condition in VT_RESIZEX ioctl when vc_cons[i].d is already NULL
leading to NULL pointer dereference (CVE-2020-36558)
* use-after-free vulnerability in function sco_sock_sendmsg()
(CVE-2021-3640)
* Memory leak for large arguments in video_usercopy function in
drivers/media/v4l2-core/v4l2-ioctl.c (CVE-2021-30002)
* smb2_ioctl_query_info NULL Pointer Dereference (CVE-2022-0168)
* NULL pointer dereference in udf_expand_file_adinicbdue() during writeback
(CVE-2022-0617)
* swiotlb information leak with DMA_FROM_DEVICE (CVE-2022-0854)
* Uninitialized registers on stack in nft_do_chain can cause kernel pointer
leakage to UM (CVE-2022-1016)
* Race condition in snd_pcm_hw_free leading to use-after-free
(CVE-2022-1048)
* use-after-free in tc_new_tfilter() in net/sched/cls_api.c (CVE-2022-1055)
* use-after-free and memory errors in ext4 when mounting and operating on a
corrupted image (CVE-2022-1184)
* NULL pointer dereference in x86_emulate_insn may lead to DoS
(CVE-2022-1852)
* buffer overflow in nft_set_desc_concat_parse() (CVE-2022-2078)
* nf_tables cross-table potential use-after-free may lead to local
privilege escalation (CVE-2022-2586)
* openvswitch: integer underflow leads to out-of-bounds write in
reserve_sfa_size() (CVE-2022-2639)
* use-after-free when psi trigger is destroyed while being polled
(CVE-2022-2938)
* net/packet: slab-out-of-bounds access in packet_recvmsg()
(CVE-2022-20368)
* possible to use the debugger to write zero into a location of choice
(CVE-2022-21499)
* Post-barrier Return Stack Buffer Predictions (CVE-2022-26373)
* Memory leak in drivers/hid/hid-elo.c (CVE-2022-27950)
* Double free in ems_usb_start_xmit in drivers/net/can/usb/ems_usb.c
(CVE-2022-28390)
* Use after free in SUNRPC subsystem (CVE-2022-28893)
* use-after-free due to improper update of reference count in
net/sched/cls_u32.c (CVE-2022-29581)
* DoS in nfqnl_mangle in net/netfilter/nfnetlink_queue.c (CVE-2022-36946)
* nfs_atomic_open() returns uninitialized data instead of ENOTDIR
(CVE-2022-24448)
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.
Additional Changes:
For detailed information on changes in this release, see the Red Hat
Enterprise Linux 8.7 Release Notes linked from the References section.
Summary
Solution
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
References
https://access.redhat.com/security/cve/CVE-2020-36516 https://access.redhat.com/security/cve/CVE-2020-36558 https://access.redhat.com/security/cve/CVE-2021-3640 https://access.redhat.com/security/cve/CVE-2021-30002 https://access.redhat.com/security/cve/CVE-2022-0168 https://access.redhat.com/security/cve/CVE-2022-0617 https://access.redhat.com/security/cve/CVE-2022-0854 https://access.redhat.com/security/cve/CVE-2022-1016 https://access.redhat.com/security/cve/CVE-2022-1048 https://access.redhat.com/security/cve/CVE-2022-1055 https://access.redhat.com/security/cve/CVE-2022-1184 https://access.redhat.com/security/cve/CVE-2022-1852 https://access.redhat.com/security/cve/CVE-2022-2078 https://access.redhat.com/security/cve/CVE-2022-2586 https://access.redhat.com/security/cve/CVE-2022-2639 https://access.redhat.com/security/cve/CVE-2022-2938 https://access.redhat.com/security/cve/CVE-2022-20368 https://access.redhat.com/security/cve/CVE-2022-21499 https://access.redhat.com/security/cve/CVE-2022-24448 https://access.redhat.com/security/cve/CVE-2022-26373 https://access.redhat.com/security/cve/CVE-2022-27950 https://access.redhat.com/security/cve/CVE-2022-28390 https://access.redhat.com/security/cve/CVE-2022-28893 https://access.redhat.com/security/cve/CVE-2022-29581 https://access.redhat.com/security/cve/CVE-2022-36946 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.7_release_notes/index https://access.redhat.com/solutions/6971358
Package List
Red Hat Enterprise Linux Real Time for NFV (v. 8):
Source:
kernel-rt-4.18.0-425.3.1.rt7.213.el8.src.rpm
x86_64:
kernel-rt-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-core-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debug-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debug-core-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debug-debuginfo-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debug-devel-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debug-kvm-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debug-modules-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debug-modules-extra-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debuginfo-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-devel-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-kvm-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-modules-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-modules-extra-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
Red Hat Enterprise Linux Real Time (v. 8):
Source:
kernel-rt-4.18.0-425.3.1.rt7.213.el8.src.rpm
x86_64:
kernel-rt-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-core-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debug-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debug-core-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debug-debuginfo-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debug-devel-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debug-modules-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debug-modules-extra-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debuginfo-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-devel-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-modules-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-modules-extra-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
Topic
An update for kernel-rt is now available for Red Hat Enterprise Linux 8.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux Real Time (v. 8) - x86_64
Red Hat Enterprise Linux Real Time for NFV (v. 8) - x86_64
Bugs Fixed
1946279 - CVE-2021-30002 kernel: memory leak for large arguments in video_usercopy function in drivers/media/v4l2-core/v4l2-ioctl.c
1980646 - CVE-2021-3640 kernel: use-after-free vulnerability in function sco_sock_sendmsg()
2037386 - CVE-2022-0168 kernel: smb2_ioctl_query_info NULL pointer dereference
2037769 - Softirq hrtimers are being placed on the per-CPU softirq clocks on isolcpu?s.
2051444 - CVE-2022-24448 kernel: nfs_atomic_open() returns uninitialized data instead of ENOTDIR
2053632 - CVE-2022-0617 kernel: NULL pointer dereference in udf_expand_file_adinicbdue() during writeback
2058395 - CVE-2022-0854 kernel: swiotlb information leak with DMA_FROM_DEVICE
2059928 - CVE-2020-36516 kernel: off-path attacker may inject data or terminate victim's TCP session
2066614 - CVE-2022-1016 kernel: uninitialized registers on stack in nft_do_chain can cause kernel pointer leakage to UM
2066706 - CVE-2022-1048 kernel: race condition in snd_pcm_hw_free leading to use-after-free
2069408 - CVE-2022-27950 kernel: memory leak in drivers/hid/hid-elo.c
2070205 - CVE-2022-1184 kernel: use-after-free and memory errors in ext4 when mounting and operating on a corrupted image
2070220 - CVE-2022-1055 kernel: use-after-free in tc_new_tfilter() in net/sched/cls_api.c
2073064 - CVE-2022-28390 kernel: double free in ems_usb_start_xmit in drivers/net/can/usb/ems_usb.c
2074208 - CVE-2022-28893 kernel: use after free in SUNRPC subsystem
2084183 - CVE-2022-21499 kernel: possible to use the debugger to write zero into a location of choice
2084479 - CVE-2022-2639 kernel: openvswitch: integer underflow leads to out-of-bounds write in reserve_sfa_size()
2088021 - CVE-2022-29581 kernel: use-after-free due to improper update of reference count in net/sched/cls_u32.c
2089815 - CVE-2022-1852 kernel: NULL pointer dereference in x86_emulate_insn may lead to DoS
2096178 - CVE-2022-2078 kernel: buffer overflow in nft_set_desc_concat_parse()
2112693 - CVE-2020-36558 kernel: race condition in VT_RESIZEX ioctl when vc_cons[i].d is already NULL leading to NULL pointer dereference
2114878 - CVE-2022-2586 kernel: nf_tables cross-table potential use-after-free may lead to local privilege escalation
2115065 - CVE-2022-26373 hw: cpu: Intel: Post-barrier Return Stack Buffer Predictions
2115278 - CVE-2022-36946 kernel: DoS in nfqnl_mangle in net/netfilter/nfnetlink_queue.c
2120175 - CVE-2022-2938 kernel: use-after-free when psi trigger is destroyed while being polled
2123695 - CVE-2022-20368 kernel: net/packet: slab-out-of-bounds access in packet_recvmsg()
