# CVE-2019-19769: kernel-uek: [5.4.17-2011.4.4uek] - KVM: VMX: Explicitly clear RFLAGS.CF and RFLAGS.ZF in VM-Exit RSB path (Sean Christopherson)...

CVE-2019-19769 is fixed in 9 products on 1 platform, first by ELSA-2020-5756, released July 14, 2020. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2019-19769
- Priority: Routine
- CVSS: 6.7 (IMPORTANT)
- EPSS: 0.0135
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 14, 2020

## Description

[5.4.17-2011.4.4uek] - KVM: VMX: Explicitly clear RFLAGS.CF and RFLAGS.ZF in VM-Exit RSB path (Sean Christopherson)  [Orabug: 31536904]  [5.4.17-2011.4.3uek] - NFS: replace cross device check in copy_file_range (Olga Kornievskaia)  [Orabug: 31507615]  - rds: Fix potential use after free in rds_ib_inc_free (Hans Westgaard Ry)  [Orabug: 31504052]  - perf/smmuv3: Allow sharing MMIO registers with the SMMU driver (Jean-Philippe Brucker)  [Orabug: 31422283]  - perf/smmuv3: use devm_platform_ioremap_resource() to simplify code (YueHaibing)  [Orabug: 31422283]  - ACPI/IORT: Fix PMCG node single ID mapping handling (Tuan Phan)  [Orabug: 31422283]  - uek-rpm: Increase CONFIG_NODES_SHIFT from 2 to 3 (Dave Kleikamp)  [Orabug: 31422283]  - perf: avoid breaking KABI by reusing enum (Dave Kleikamp)  [Orabug: 31422283]  - uek-rpm: update aarch64 configs for Ampere eMAG2 (Dave Kleikamp)  [Orabug: 31422283]  - perf: arm_dmc620: Update ACPI ID. (Tuan Phan)  [Orabug: 31422283]  - perf: arm_dsu: Support ACPI mode. (Tuan Phan)  [Orabug: 31422283]  - perf: arm_dsu: Allow IRQ to be shared among devices. (Tuan Phan)  [Orabug: 31422283]  - perf: arm_cmn: improve and make it work on 2P. (Tuan Phan)  [Orabug: 31422283]  - Perf: arm-cmn: Allow irq to be shared. (Tuan Phan)  [Orabug: 31422283]  - BACKPORT: arm64: acpi: Make apei_claim_sea() synchronise with APEI's irq work (James Morse)  [Orabug: 31422283]  - BACKPORT: ACPI / APEI: Kick the memory_failure() queue for synchronous errors (James Morse)  [Orabug: 31422283]  - BACKPORT: mm/memory-failure: Add memory_failure_queue_kick() (James Morse)  [Orabug: 31422283]  - perf: Add ARM DMC-620 PMU driver. (Tuan Phan)  [Orabug: 31422283]  - BACKPORT: WIP: perf/arm-cmn: Add ACPI support (Robin Murphy)  [Orabug: 31422283]  - BACKPORT: WIP: perf: Add Arm CMN-600 PMU driver (Robin Murphy)  [Orabug: 31422283]  - BACKPORT: perf: Add Arm CMN-600 DT binding (Robin Murphy)  [Orabug: 31422283]  - net/rds: NULL pointer de-reference in rds_ib_add_one() (Ka-Cheong Poon)  [Orabug: 30984983]  - mm: Fix mremap not considering huge pmd devmap (Fan Yang)  [Orabug: 31452396]  {CVE-2020-10757} {CVE-2020-10757}  [5.4.17-2011.4.2uek] - UEK6 compiler warning for /net/rds/ib.c (Sharath Srinivasan)  [Orabug: 31489529]  - UEK6 compiler warning for /net/rds/send.c (Sharath Srinivasan)  [Orabug: 31489529]  - Fix up two build warnings in the UEK6 GA tree (Jack Vogel)  [Orabug: 31489333]  - drivers/scsi/scsi_scan.c Fix the compiler warning. (Sudhakar Panneerselvam)  [Orabug: 31489322]  - x86/retpoline: Fix retpoline unwind (Peter Zijlstra)  [Orabug: 31077463] [Orabug: 31489320]  - x86: Change {JMP,CALL}_NOSPEC argument (Peter Zijlstra)  [Orabug: 31077463] [Orabug: 31489320]  - x86: Simplify retpoline declaration (Peter Zijlstra)  [Orabug: 31077463] [Orabug: 31489320]  - x86/speculation: Change STUFF_RSB to work with objtool (Alexandre Chartre)  [Orabug: 31077463] [Orabug: 31489320]  - x86/speculation: Change FILL_RETURN_BUFFER to work with objtool (Peter Zijlstra)  [Orabug: 31077463] [Orabug: 31489320]  - x86/unwind: Introduce UNWIND_HINT_EMPTY_ASM (Alexandre Chartre)  [Orabug: 31077463] [Orabug: 31489320]  - objtool: Add support for intra-function calls (Alexandre Chartre)  [Orabug: 31077463] [Orabug: 31489320]  - objtool: Remove INSN_STACK (Peter Zijlstra)  [Orabug: 31077463] [Orabug: 31489320]  - objtool: Make handle_insn_ops() unconditional (Peter Zijlstra)  [Orabug: 31077463] [Orabug: 31489320]  - objtool: Rework allocating stack_ops on decode (Peter Zijlstra)  [Orabug: 31077463] [Orabug: 31489320]  - objtool: UNWIND_HINT_RET_OFFSET should not check registers (Alexandre Chartre)  [Orabug: 31077463] [Orabug: 31489320]  - objtool: is_fentry_call() crashes if call has no destination (Alexandre Chartre)  [Orabug: 31077463] [Orabug: 31489320]  - objtool: Uniquely identify alternative instruction groups (Alexandre Chartre)  [Orabug: 31077463] [Orabug: 31489320]  - objtool: Remove check preventing branches within alternative (Julien Thierry)  [Orabug: 31077463] [Orabug: 31489320]  - objtool: Introduce HINT_RET_OFFSET (Peter Zijlstra)  [Orabug: 31077463] [Orabug: 31489320]  - objtool: Support multiple stack_op per instruction (Julien Thierry)  [Orabug: 31077463] [Orabug: 31489320]  }

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | kernel-uek ol 8 | 0:5.4.17-2011.4.4.el8uek | [ELSA-2020-5756](https://patchblox.com/security/data/fix/linux/elsa-2020-5756.md) | Jul 14, 2020 |
| Linux | kernel-uek-debug ol 8 | 0:5.4.17-2011.4.4.el8uek | [ELSA-2020-5756](https://patchblox.com/security/data/fix/linux/elsa-2020-5756.md) | Jul 14, 2020 |
| Linux | kernel-uek-debug-devel ol 8 | 0:5.4.17-2011.4.4.el8uek | [ELSA-2020-5756](https://patchblox.com/security/data/fix/linux/elsa-2020-5756.md) | Jul 14, 2020 |
| Linux | kernel-uek-devel ol 8 | 0:5.4.17-2011.4.4.el8uek | [ELSA-2020-5756](https://patchblox.com/security/data/fix/linux/elsa-2020-5756.md) | Jul 14, 2020 |
| Linux | kernel-uek-doc ol 8 | 0:5.4.17-2011.4.4.el8uek | [ELSA-2020-5756](https://patchblox.com/security/data/fix/linux/elsa-2020-5756.md) | Jul 14, 2020 |
| Linux | kernel-uek-tools ol 8 | 0:5.4.17-2011.4.4.el7uek | [ELSA-2020-5756](https://patchblox.com/security/data/fix/linux/elsa-2020-5756.md) | Jul 14, 2020 |
| Linux | kernel-uek-tools-libs ol 8 | 0:5.4.17-2011.4.4.el7uek | [ELSA-2020-5756](https://patchblox.com/security/data/fix/linux/elsa-2020-5756.md) | Jul 14, 2020 |
| Linux | perf ol 8 | 0:5.4.17-2011.4.4.el7uek | [ELSA-2020-5756](https://patchblox.com/security/data/fix/linux/elsa-2020-5756.md) | Jul 14, 2020 |
| Linux | python-perf ol 8 | 0:5.4.17-2011.4.4.el7uek | [ELSA-2020-5756](https://patchblox.com/security/data/fix/linux/elsa-2020-5756.md) | Jul 14, 2020 |

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Data as of 2026-11-07T06:34:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo
