Description
In the Linux kernel, the following vulnerability has been resolved:
perf/x86/lbr: Filter vsyscall addresses
We found that a panic can occur when a vsyscall is made while LBR sampling
is active. If the vsyscall is interrupted (NMI) for perf sampling, this
call sequence can occur (most recent at top):
__insn_get_emulate_prefix()
insn_get_emulate_prefix()
insn_get_prefixes()
insn_get_opcode()
decode_branch_type()
get_branch_type()
intel_pmu_lbr_filter()
intel_pmu_handle_irq()
perf_event_nmi_handler()
Within __insn_get_emulate_prefix() at frame 0, a macro is called:
peek_nbyte_next(insn_byte_t, insn, i)
Within this macro, this dereference occurs:
(insn)->next_byte
Inspecting registers at this point, the value of the next_byte field is the
address of the vsyscall made, for example the location of the vsyscall
version of gettimeofday() at 0xffffffffff600000. The access to an address
in the vsyscall region will trigger an oops due to an unhandled page fault.
To fix the bug, filtering for vsyscalls can be done when
determining the branch type. This patch will return
a "none" branch if a kernel address if found to lie in the
vsyscall region.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 5.16 | 6.1.59 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | 6.5.8-1 | — |
| Debian 13 | linux | 6.5.8-1 | — |
| Debian 12 | linux | 6.1.64-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux-nvidia-6.5 | 6.5.0-1014.14 | — |
| Ubuntu 22.04 LTS | linux-riscv +28 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gke +27 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gkeop-5.15 | 5.15.0-1038.44~20.04.1 | — |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | bpftool | 7.3.0-427.13.1.el9_4 | RHSA-2024:2394 |
| RHEL 9 | rv +64 | 5.14.0-427.13.1.el9_4 | RHSA-2024:2394 |
| RHEL 8 | kernel-rt +12 | 4.18.0-553.22.1.rt7.363.el8_10 | RHSA-2024:7001 |
| RHEL 8 | perf +26 | 4.18.0-553.22.1.el8_10 | RHSA-2024:7000 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | bpftool | 7.3.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux 9 | rv +60 | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux 8 | kernel-rt +11 | 4.18.0-553.22.1.rt7.363.el8_10 | ALSA-2024:7001 |
| AlmaLinux 8 | perf +24 | 4.18.0-553.22.1.el8_10 | ALSA-2024:7000 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | kernel | 4.18.0-553.22.1.el8_10 | RLSA-2024:7000 |
| Rocky Linux 8 | kernel-rt | 4.18.0-553.22.1.rt7.363.el8_10 | RLSA-2024:7001 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | kernel-64kb +6 | 5.14.21-150500.55.59.1 | SUSE-SU-2024:1480-1 |
| SLES 15 SP5 | kernel-azure +2 | 5.14.21-150500.33.48.1 | SUSE-SU-2024:1490-1 |
| SLES 15 SP5 | kernel-default-base | 5.14.21-150500.55.59.1.150500.6.25.7 | SUSE-SU-2024:1480-1 |
| SLES 15 SP4 | kernel-64kb +6 | 5.14.21-150400.24.119.1 | SUSE-SU-2024:1641-1 |
| SLES 15 SP4 | kernel-default-base | 5.14.21-150400.24.119.1.150400.24.56.1 | SUSE-SU-2024:1641-1 |
| SLES 15 SP3 | kernel-64kb +7 | 5.3.18-150300.59.158.1 | SUSE-SU-2024:1489-1 |
| SLES 15 SP3 | kernel-default-base | 5.3.18-150300.59.158.1.150300.18.92.5 | SUSE-SU-2024:1489-1 |
| SLES 15 SP2 | kernel-default-base | 5.3.18-150200.24.188.1.150200.9.95.3 | SUSE-SU-2024:1454-1 |
| SLES 15 SP2 | kernel-docs +5 | 5.3.18-150200.24.188.1 | SUSE-SU-2024:1454-1 |
| SLES 12 SP5 | kernel-azure +2 | 4.12.14-16.182.1 | SUSE-SU-2024:1643-1 |
| SLES 12 SP5 | kernel-docs +4 | 4.12.14-122.216.1 | SUSE-SU-2024:1870-1 |
Show 22 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP4 | kernel-default-base | 5.14.21-150400.24.119.1.150400.24.56.1 | SUSE-SU-2024:1641-1 |
| SLES for SAP 15 SP4 | kernel-docs +4 | 5.14.21-150400.24.119.1 | SUSE-SU-2024:1641-1 |
| SLES for SAP 15 SP3 | kernel-default-base | 5.3.18-150300.59.158.1.150300.18.92.5 | SUSE-SU-2024:1489-1 |
| SLES for SAP 15 SP3 | kernel-docs +5 | 5.3.18-150300.59.158.1 | SUSE-SU-2024:1489-1 |
| SLES for SAP 15 SP2 | kernel-default-base | 5.3.18-150200.24.188.1.150200.9.95.3 | SUSE-SU-2024:1454-1 |
| SLES for SAP 15 SP2 | kernel-docs +5 | 5.3.18-150200.24.188.1 | SUSE-SU-2024:1454-1 |
| SLES for SAP 12 SP5 | kernel-azure +2 | 4.12.14-16.182.1 | SUSE-SU-2024:1643-1 |
| SLES for SAP 12 SP5 | kernel-syms +2 | 4.12.14-122.216.1 | SUSE-SU-2024:1870-1 |
| SLE Real Time 12 SP5 | kernel-rt +3 | 4.12.14-10.182.1 | SUSE-SU-2024:1646-1 |
| SLE Micro 5.5 | kernel-default | 5.14.21-150500.55.59.1 | SUSE-SU-2024:1480-1 |
| SLE Micro 5.5 | kernel-default-base | 5.14.21-150500.55.59.1.150500.6.25.7 | SUSE-SU-2024:1480-1 |
| SLE Micro 5.5 | kernel-rt +1 | 5.14.21-150500.13.47.1 | SUSE-SU-2024:1466-1 |
| SLE Micro 5.4 | kernel-default | 5.14.21-150400.24.119.1 | SUSE-SU-2024:1641-1 |
| SLE Micro 5.4 | kernel-default-base | 5.14.21-150400.24.119.1.150400.24.56.1 | SUSE-SU-2024:1641-1 |
| SLE Micro 5.4 | kernel-rt +1 | 5.14.21-150400.15.79.1 | SUSE-SU-2024:1647-1 |
| SLE Micro 5.3 | kernel-default | 5.14.21-150400.24.119.1 | SUSE-SU-2024:1641-1 |
| SLE Micro 5.3 | kernel-default-base | 5.14.21-150400.24.119.1.150400.24.56.1 | SUSE-SU-2024:1641-1 |
| SLE Micro 5.3 | kernel-rt +1 | 5.14.21-150400.15.79.1 | SUSE-SU-2024:1647-1 |
| SLE Micro 5.2 | kernel-default | 5.3.18-150300.59.158.1 | SUSE-SU-2024:1489-1 |
| SLE Micro 5.2 | kernel-default-base | 5.3.18-150300.59.158.1.150300.18.92.5 | SUSE-SU-2024:1489-1 |
| SLE Micro 5.2 | kernel-rt +1 | 5.3.18-150300.166.1 | SUSE-SU-2024:1465-1 |
| SLE Micro 5.1 | kernel-default | 5.3.18-150300.59.158.1 | SUSE-SU-2024:1489-1 |
| SLE Micro 5.1 | kernel-default-base | 5.3.18-150300.59.158.1.150300.18.92.5 | SUSE-SU-2024:1489-1 |
| SLE Micro 5.1 | kernel-rt +1 | 5.3.18-150300.166.1 | SUSE-SU-2024:1465-1 |
| SLE Live Patching 15 SP5 | kernel-default | 5.14.21-150500.55.59.1 | SUSE-SU-2024:1480-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5-RT_Update_13 | 1-150500.11.3.1 | SUSE-SU-2024:1466-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_12 | 1-150500.11.7.1 | SUSE-SU-2024:1480-1 |
| SLE Live Patching 15 SP4 | kernel-default | 5.14.21-150400.24.119.1 | SUSE-SU-2024:1641-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_26 | 1-150400.9.3.1 | SUSE-SU-2024:1641-1 |
| SLE Live Patching 15 SP3 | kernel-default | 5.3.18-150300.59.158.1 | SUSE-SU-2024:1489-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_43 | 1-150300.7.3.5 | SUSE-SU-2024:1489-1 |
| SLE Live Patching 15 SP2 | kernel-default | 5.3.18-150200.24.188.1 | SUSE-SU-2024:1454-1 |
| SLE Live Patching 15 SP2 | kernel-livepatch-SLE15-SP2_Update_47 | 1-150200.5.3.3 | SUSE-SU-2024:1454-1 |
| SLE Live Patching 12 SP5 | kernel-default | 4.12.14-122.216.1 | SUSE-SU-2024:1870-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_56 | 1-8.3.1 | SUSE-SU-2024:1870-1 |
| SLE HPC 15 SP4 | kernel-64kb +5 | 5.14.21-150400.24.119.1 | SUSE-SU-2024:1641-1 |
| SLE HPC 15 SP4 | kernel-default-base | 5.14.21-150400.24.119.1.150400.24.56.1 | SUSE-SU-2024:1641-1 |
| SLE HPC 15 SP3 | kernel-64kb +6 | 5.3.18-150300.59.158.1 | SUSE-SU-2024:1489-1 |
| SLE HPC 15 SP3 | kernel-default-base | 5.3.18-150300.59.158.1.150300.18.92.5 | SUSE-SU-2024:1489-1 |
| SLE HPC 15 SP2 | kernel-default-base | 5.3.18-150200.24.188.1.150200.9.95.3 | SUSE-SU-2024:1454-1 |
| SLE HPC 15 SP2 | kernel-docs +5 | 5.3.18-150200.24.188.1 | SUSE-SU-2024:1454-1 |
| SUSE Real Time Module 15 SP5 | kernel-rt +3 | 5.14.21-150500.13.47.1 | SUSE-SU-2024:1466-1 |
| SUSE Manager Server 4.3 | kernel-default-base | 5.14.21-150400.24.119.1.150400.24.56.1 | SUSE-SU-2024:1641-1 |
| SUSE Manager Server 4.3 | kernel-syms +3 | 5.14.21-150400.24.119.1 | SUSE-SU-2024:1641-1 |
| SUSE Manager Proxy 4.3 | kernel-default-base | 5.14.21-150400.24.119.1.150400.24.56.1 | SUSE-SU-2024:1641-1 |
| SUSE Manager Proxy 4.3 | kernel-syms +2 | 5.14.21-150400.24.119.1 | SUSE-SU-2024:1641-1 |
| SUSE Enterprise Storage 7.1 | kernel-64kb +6 | 5.3.18-150300.59.158.1 | SUSE-SU-2024:1489-1 |
| SUSE Enterprise Storage 7.1 | kernel-default-base | 5.3.18-150300.59.158.1.150300.18.92.5 | SUSE-SU-2024:1489-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.5 | dtb-aarch64 +10 | 5.14.21-150500.55.59.1 | SUSE-SU-2024:1480-1 |
| openSUSE Leap 15.5 | kernel-azure +2 | 5.14.21-150500.33.48.1 | SUSE-SU-2024:1490-1 |
| openSUSE Leap 15.5 | kernel-default-base | 5.14.21-150500.55.59.1.150500.6.25.7 | SUSE-SU-2024:1480-1 |
| openSUSE Leap 15.5 | kernel-rt +3 | 5.14.21-150500.13.47.1 | SUSE-SU-2024:1466-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.4 | kernel-default | 5.14.21-150400.24.119.1 | SUSE-SU-2024:1641-1 |
| openSUSE Leap Micro 5.4 | kernel-default-base | 5.14.21-150400.24.119.1.150400.24.56.1 | SUSE-SU-2024:1641-1 |
| openSUSE Leap Micro 5.4 | kernel-rt | 5.14.21-150400.15.79.1 | SUSE-SU-2024:1647-1 |
| openSUSE Leap Micro 5.3 | kernel-default | 5.14.21-150400.24.119.1 | SUSE-SU-2024:1641-1 |
| openSUSE Leap Micro 5.3 | kernel-default-base | 5.14.21-150400.24.119.1.150400.24.56.1 | SUSE-SU-2024:1641-1 |
| openSUSE Leap Micro 5.3 | kernel-rt | 5.14.21-150400.15.79.1 | SUSE-SU-2024:1647-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | kernel-livepatch-6.1.59-84.139 | 1.0-0.amzn2023 | ALAS2023-2023-422 |
| Amazon Linux 2023 | perf +13 | 6.1.59-84.139.amzn2023 | ALAS2023-2023-422 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | bpftool | 7.3.0-427.13.1.el9_4 | ELSA-2024-2394 |
| Oracle Linux 9 | rv +27 | 5.14.0-427.13.1.el9_4 | ELSA-2024-2394 |
| Oracle Linux 8 | perf +19 | 4.18.0-553.22.1.el8_10 | ELSA-2024-7000 |
Advisories 24
- RHSA-2024:7000 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2024:7001 Red Hat Security Advisory: kernel-rt security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- ALSA-2024:2394 Important: kernel security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:7001 Important: kernel-rt security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:7000 Important: kernel security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2024:2394 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- WID-SEC-2024-1226 Red Hat OpenShift: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 11, 2026
- WID-SEC-2024-0511 Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service und unspezifische Angriffe BSI CERT-Bund (WID) · Feb 15, 2026
- RLSA-2024:7001 Important: kernel-rt security update Rocky Linux Security Advisories · Feb 5, 2026
- SUSE-SU-2024:1489-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1480-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1647-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1870-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1490-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1454-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1646-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1466-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1643-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1465-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1641-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- RLSA-2024:7000 Important: kernel security update Rocky Linux Security Advisories · May 7, 2025
- ELSA-2024-7000 Important: kernel security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Sep 24, 2024
- ALAS2023-2023-422 Important: kernel security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Jul 3, 2024
- ELSA-2024-2394 Important: kernel security, bug fix, and enhancement update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · May 2, 2024