Red Hat Security Advisory: kernel-rt security and bug fix update

Fixed packages 28

Vulnerabilities 7

• High 7.8
  CVE-2022-0492 Exploited Public exploit

  A vulnerability was found in the Linux kernel’s cgroup_release_agent_write in the kernel/cgroup/cgroup-v1.c function. T…

  linux-raspi2 linux-hwe linux-azure linux-riscv Debian Ubuntu Azure Linux
  Mar 3, 2022

  KEV Jun 2, 2026
• High 7.8
  CVE-2022-0847 Exploited Public exploit EPSS 93%

  A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in co…

  linux-raspi2 linux-hwe linux-azure linux-riscv Debian Ubuntu Azure Linux
  Mar 7, 2022

  KEV Apr 25, 2022
• Medium 6.4
  CVE-2021-0920 Exploited

  In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This could lead to loc…

  linux-raspi2 linux-hwe linux-azure linux-riscv Android Debian Ubuntu
  Dec 15, 2021

  KEV May 23, 2022
• High 7.8
  CVE-2022-22942 Public exploit

  The vmwgfx driver contains a local privilege escalation vulnerability that allows unprivileged users to gain access to …

  linux-raspi2 linux-hwe linux-azure linux-riscv Debian Ubuntu
  Dec 13, 2023
• Unscored —
  CVE-2021-4154 Public exploit

  A use-after-free flaw was found in cgroup1_parse_param in kernel/cgroup/cgroup-v1.c in the Linux kernel's cgroup v1 par…

  linux-raspi2 linux-hwe linux-azure linux-riscv Debian Ubuntu
  Feb 4, 2022
• Unscored —
  CVE-2022-0330

  A random memory access flaw was found in the Linux kernel's GPU i915 kernel driver functionality in the way a user may …

  linux-raspi2 linux-hwe linux-azure linux-riscv Debian Ubuntu Azure Linux
  Mar 25, 2022
• Unscored —
  CVE-2022-0435 Public exploit EPSS 68%

  A stack overflow flaw was found in the Linux kernel's TIPC protocol functionality in the way a user sends a packet with…

  linux-raspi2 linux-hwe linux-azure linux-riscv Debian Ubuntu Azure Linux
  Mar 25, 2022

References

• article
  https://access.redhat.com/security/updates/classification/#important
• article
  https://access.redhat.com/security/vulnerabilities/RHSB-2022-002
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2031930
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2034514
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2042404
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2044809
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2048738
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2051505
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2060795
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2022/rhsa-2022_0819.json
• report
  https://access.redhat.com/security/cve/CVE-2021-0920
• advisory
  https://www.cve.org/CVERecord?id=CVE-2021-0920
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2021-0920
• article
  https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cbcf01128d0a92e131bd09f1688fe032480b65ca
• article
  https://www.cisa.gov/known-exploited-vulnerabilities-catalog
• report
  https://access.redhat.com/security/cve/CVE-2021-4154
• advisory
  https://www.cve.org/CVERecord?id=CVE-2021-4154
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2021-4154
• article
  https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3b0462726e7ef281c35a7a4ae33e93ee2bc9975b
• report
  https://access.redhat.com/security/cve/CVE-2022-0330
• advisory
  https://www.cve.org/CVERecord?id=CVE-2022-0330
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2022-0330
• article
  https://www.openwall.com/lists/oss-security/2022/01/25/12
• report
  https://access.redhat.com/security/cve/CVE-2022-0435
• advisory
  https://www.cve.org/CVERecord?id=CVE-2022-0435
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2022-0435
• article
  https://www.openwall.com/lists/oss-security/2022/02/10/1
• report
  https://access.redhat.com/security/cve/CVE-2022-0492
• advisory
  https://www.cve.org/CVERecord?id=CVE-2022-0492
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2022-0492
• article
  https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=24f6008564183aa120d07c03d9289519c2fe02af
• report
  https://access.redhat.com/security/cve/CVE-2022-0847
• advisory
  https://www.cve.org/CVERecord?id=CVE-2022-0847
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2022-0847
• article
  https://dirtypipe.cm4all.com/
• article
  https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/lib/iov_iter.c?id=9d2231c5d74e13b2a0546fee6737ee4446017903
• report
  https://access.redhat.com/security/cve/CVE-2022-22942
• advisory
  https://www.cve.org/CVERecord?id=CVE-2022-22942
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2022-22942