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TI-2022-25120 Aliases CVE-2022-49611GHSA-3v7p-2jr8-qj72

x86/speculation: Fill RSB on vmexit for IBRS

Priority LOW 25Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 7 fixed, 4 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

Summary

In the Linux kernel, the following vulnerability has been resolved: x86/speculation: Fill RSB on vmexit for IBRS Prevent RSB underflow/poisoning attacks with RSB. While at it, add a bunch of comments to attempt to document the current state of tribal knowledge about RSB attacks and what exactly is being mitigated.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00284 21st percentileScored 2026-11-07
Fix Partial Linux (Linux): 4.14.297, 3.3, 3.17 +8Red Hat: 3 advisoriesRed Hat: 7 fixed, 4 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux4.14.14 to before 4.14.297; 3.2.101 to before 3.3; 3.16.56 to before 3.17; 4.4.113 to before 4.5; 4.9.77 to before 4.104.14.297, 3.3, 3.17, 4.5, 4.10Patch availableCNA
LinuxLinux4.15 and later4.14.297, 4.19.266, 5.4.217, 5.10.133, 5.15.57, 5.18.14, 5.19Patch availableCNA
  • Linux VendorLinux Affected 4.14.14 to before 4.14.297; 3.2.101 to before 3.3; 3.16.56 to before 3.17; 4.4.113 to before 4.5; 4.9.77 to before 4.10 Fixed in 4.14.297, 3.3, 3.17, 4.5, 4.10 Patch available CNA
  • Linux VendorLinux Affected 4.15 and later Fixed in 4.14.297, 4.19.266, 5.4.217, 5.10.133, 5.15.57, 5.18.14, 5.19 Patch available CNA

CPE configurations NVD · 7

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*before 4.14.297; 4.15 to before 4.19.266; 4.20 to before 5.4.217; 5.5 to before 5.10.133; 5.11 to before 5.15.57; 5.16 to before 5.18.14VulnerableLinux
cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:*5.19 rc1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:*5.19 rc2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:*5.19 rc3VulnerableLinux
cpe:2.3:o:linux:linux_kernel:5.19:rc4:*:*:*:*:*:*5.19 rc4VulnerableLinux
cpe:2.3:o:linux:linux_kernel:5.19:rc5:*:*:*:*:*:*5.19 rc5VulnerableLinux
cpe:2.3:o:linux:linux_kernel:5.19:rc6:*:*:*:*:*:*5.19 rc6VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 4.14.297; 4.15 to before 4.19.266; 4.20 to before 5.4.217; 5.5 to before 5.10.133; 5.11 to before 5.15.57; 5.16 to before 5.18.14 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:* Versions 5.19 rc1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:* Versions 5.19 rc2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:* Versions 5.19 rc3 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:5.19:rc4:*:*:*:*:*:* Versions 5.19 rc4 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:5.19:rc5:*:*:*:*:*:* Versions 5.19 rc5 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:5.19:rc6:*:*:*:*:*:* Versions 5.19 rc6 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 4.14.297, 3.3, 3.17, 4.5, 4.10
  • Fix · CNA Linux (Linux) Fixed in 4.14.297, 4.19.266, 5.4.217, 5.10.133, 5.15.57, 5.18.14, 5.19

Red Hat 3 advisories

  • RHSA-2022:8973 Released 2022-12-13 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat CodeReady Linux Builder EUS (v.9.0) kernel-tools-libs-devel-5.14.0-70.36.1.el9_0
    • Red Hat Enterprise Linux AppStream EUS (v.9.0) kernel-debug-devel-5.14.0-70.36.1.el9_0, kernel-debug-devel-matched-5.14.0-70.36.1.el9_0, kernel-devel-5.14.0-70.36.1.el9_0 +5
    • Red Hat Enterprise Linux BaseOS EUS (v.9.0) bpftool-5.14.0-70.36.1.el9_0, kernel-5.14.0-70.36.1.el9_0, kernel-abi-stablelists-5.14.0-70.36.1.el9_0 +14
  • RHSA-2022:7683 Released 2022-11-08 · Red Hat rating Moderate
    kernel security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder (v. 8) kernel-tools-libs-devel-4.18.0-425.3.1.el8
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-425.3.1.el8, kernel-4.18.0-425.3.1.el8, kernel-abi-stablelists-4.18.0-425.3.1.el8 +19
  • RHSA-2022:7110 Released 2022-10-25 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-372.32.1.el8_6, kernel-4.18.0-372.32.1.el8_6, kernel-abi-stablelists-4.18.0-372.32.1.el8_6 +19
    • Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-372.32.1.el8_6
    • Red Hat Virtualization 4 Hypervisor for RHEL 8 kernel-devel-4.18.0-372.32.1.el8_6, perf-4.18.0-372.32.1.el8_6

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 8AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 9AffectedNo fix yet: Fix deferred
Red Hat CodeReady Linux Builder (v. 8)Fixed RHSA-2022:7683
Red Hat CodeReady Linux Builder EUS (v.9.0)Fixed RHSA-2022:8973
Red Hat Enterprise Linux AppStream EUS (v.9.0)Fixed RHSA-2022:8973
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2022:7110, RHSA-2022:7683
Red Hat Enterprise Linux BaseOS EUS (v.9.0)Fixed RHSA-2022:8973
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2022:7110
Red Hat Virtualization 4 Hypervisor for RHEL 8Fixed RHSA-2022:7110
Not affected: 1 product
  • Red Hat Enterprise Linux 10

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-49611
  2. 2026-10-03 Alias added: GHSA-3v7p-2jr8-qj72
  3. 2026-11-05 CISA SSVC decision points changed

References

Patch 7

  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
  • TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
  • TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
  • TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
  • TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
See all 15278 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences