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Medium 1 exploited CVE ALSA-2022:7444 25 CVEs

Moderate: kernel-rt security and bug fix update

Published Nov 8, 2022 · Updated Oct 29, 2026

Ecosystem: AlmaLinux

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 AlmaLinux Release Notes linked from the References section.

Fixed packages 12

ReleasePackageFixed in
AlmaLinux · 8 kernel-rt 4.18.0-425.3.1.rt7.213.el8
AlmaLinux · 8 kernel-rt-core 4.18.0-425.3.1.rt7.213.el8
AlmaLinux · 8 kernel-rt-debug 4.18.0-425.3.1.rt7.213.el8
AlmaLinux · 8 kernel-rt-debug-core 4.18.0-425.3.1.rt7.213.el8
AlmaLinux · 8 kernel-rt-debug-devel 4.18.0-425.3.1.rt7.213.el8
AlmaLinux · 8 kernel-rt-debug-kvm 4.18.0-425.3.1.rt7.213.el8
AlmaLinux · 8 kernel-rt-debug-modules 4.18.0-425.3.1.rt7.213.el8
AlmaLinux · 8 kernel-rt-debug-modules-extra 4.18.0-425.3.1.rt7.213.el8
AlmaLinux · 8 kernel-rt-devel 4.18.0-425.3.1.rt7.213.el8
AlmaLinux · 8 kernel-rt-kvm 4.18.0-425.3.1.rt7.213.el8
AlmaLinux · 8 kernel-rt-modules 4.18.0-425.3.1.rt7.213.el8
AlmaLinux · 8 kernel-rt-modules-extra 4.18.0-425.3.1.rt7.213.el8

Vulnerabilities 25

References

  • report
    https://access.redhat.com/security/cve/CVE-2020-36516
  • report
    https://access.redhat.com/security/cve/CVE-2020-36558
  • report
    https://access.redhat.com/security/cve/CVE-2021-30002
  • report
    https://access.redhat.com/security/cve/CVE-2021-3640
  • report
    https://access.redhat.com/security/cve/CVE-2022-0168
  • report
    https://access.redhat.com/security/cve/CVE-2022-0617
  • report
    https://access.redhat.com/security/cve/CVE-2022-0854
  • report
    https://access.redhat.com/security/cve/CVE-2022-1016
  • report
    https://access.redhat.com/security/cve/CVE-2022-1048
  • report
    https://access.redhat.com/security/cve/CVE-2022-1055
  • report
    https://access.redhat.com/security/cve/CVE-2022-1184
  • report
    https://access.redhat.com/security/cve/CVE-2022-1852
  • report
    https://access.redhat.com/security/cve/CVE-2022-20368
  • report
    https://access.redhat.com/security/cve/CVE-2022-2078
  • report
    https://access.redhat.com/security/cve/CVE-2022-21499
  • report
    https://access.redhat.com/security/cve/CVE-2022-24448
  • report
    https://access.redhat.com/security/cve/CVE-2022-2586
  • report
    https://access.redhat.com/security/cve/CVE-2022-26373
  • report
    https://access.redhat.com/security/cve/CVE-2022-2639
  • report
    https://access.redhat.com/security/cve/CVE-2022-27950
  • report
    https://access.redhat.com/security/cve/CVE-2022-28390
  • report
    https://access.redhat.com/security/cve/CVE-2022-28893
  • report
    https://access.redhat.com/security/cve/CVE-2022-2938
  • report
    https://access.redhat.com/security/cve/CVE-2022-29581
  • report
    https://access.redhat.com/security/cve/CVE-2022-36946
  • report
    https://bugzilla.redhat.com/1946279
  • report
    https://bugzilla.redhat.com/1980646
  • report
    https://bugzilla.redhat.com/2037386
  • report
    https://bugzilla.redhat.com/2051444
  • report
    https://bugzilla.redhat.com/2053632
  • report
    https://bugzilla.redhat.com/2058395
  • report
    https://bugzilla.redhat.com/2059928
  • report
    https://bugzilla.redhat.com/2066614
  • report
    https://bugzilla.redhat.com/2066706
  • report
    https://bugzilla.redhat.com/2069408
  • report
    https://bugzilla.redhat.com/2070205
  • report
    https://bugzilla.redhat.com/2070220
  • report
    https://bugzilla.redhat.com/2073064
  • report
    https://bugzilla.redhat.com/2074208