# CVE-2018-19985: kernel-rt: The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high...

CVE-2018-19985 is fixed in 37 products on 1 platform, first by RHSA-2019:3517, released November 5, 2019. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2018-19985
- Priority: Routine
- CVSS: 4.6 (Important)
- EPSS: 0.0095
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Nov 5, 2019

## Description

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.  Security Fix(es):  * kernel: nfs: use-after-free in svc_process_common() (CVE-2018-16884)  * Kernel: vhost_net: infinite loop while receiving packets leads to DoS (CVE-2019-3900)  * Kernel: page cache side channel attacks (CVE-2019-5489)  * hardware: bluetooth: BR/EDR encryption key negotiation attacks (KNOB) (CVE-2019-9506)  * kernel: Heap overflow in mwifiex_uap_parse_tail_ies function in drivers/net/wireless/marvell/mwifiex/ie.c (CVE-2019-10126)  * Kernel: KVM: OOB memory access via mmio ring buffer (CVE-2019-14821)  * kernel: Information Disclosure in crypto_report_one in crypto/crypto_user.c (CVE-2018-19854)  * kernel: usb: missing size check in the __usb_get_extra_descriptor() leading to DoS (CVE-2018-20169)  * kernel: Heap address information leak while using L2CAP_GET_CONF_OPT (CVE-2019-3459)  * kernel: Heap address information leak while using L2CAP_PARSE_CONF_RSP (CVE-2019-3460)  * kernel: SCTP socket buffer memory leak leading to denial of service (CVE-2019-3874)  * kernel: denial of service vector through vfio DMA mappings (CVE-2019-3882)  * kernel: null-pointer dereference in hci_uart_set_flow_control (CVE-2019-10207)  * kernel: fix race condition between mmget_not_zero()/get_task_mm() and core dumping (CVE-2019-11599)  * kernel: fs/ext4/extents.c leads to information disclosure (CVE-2019-11833)  * kernel: sensitive information disclosure from kernel stack memory via HIDPCONNADD command (CVE-2019-11884)  * kernel: use-after-free in arch/x86/lib/insn-eval.c (CVE-2019-13233)  * kernel: memory leak in register_queue_kobjects() in net/core/net-sysfs.c leads to denial of service (CVE-2019-15916)  * kernel: oob memory read in hso_probe in drivers/net/usb/hso.c (CVE-2018-19985)  * Kernel: KVM: leak of uninitialized stack contents to guest (CVE-2019-7222)  * Kernel: net: weak IP ID generation leads to remote device tracking (CVE-2019-10638)  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 Red Hat Enterprise Linux 8.1 Release Notes linked from the References section.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | bpftool RHEL 8 | 0:4.18.0-147.el8 | [RHSA-2019:3517](https://patchblox.com/security/data/fix/linux/rhsa-2019-3517.md) | Nov 5, 2019 |
| Linux | bpftool ol 8 | 0:4.18.0-147.el8 | [ELSA-2019-3517](https://patchblox.com/security/data/fix/linux/elsa-2019-3517.md) | Nov 14, 2019 |
| Linux | kernel RHEL 8 | 0:4.18.0-147.el8 | [RHSA-2019:3517](https://patchblox.com/security/data/fix/linux/rhsa-2019-3517.md) | Nov 5, 2019 |
| Linux | kernel ol 8 | 0:4.18.0-147.el8 | [ELSA-2019-3517](https://patchblox.com/security/data/fix/linux/elsa-2019-3517.md) | Nov 14, 2019 |
| Linux | kernel-abi-whitelists RHEL 8 | 0:4.18.0-147.el8 | [RHSA-2019:3517](https://patchblox.com/security/data/fix/linux/rhsa-2019-3517.md) | Nov 5, 2019 |
| Linux | kernel-abi-whitelists ol 8 | 0:4.18.0-147.el8 | [ELSA-2019-3517](https://patchblox.com/security/data/fix/linux/elsa-2019-3517.md) | Nov 14, 2019 |
| Linux | kernel-core RHEL 8 | 0:4.18.0-147.el8 | [RHSA-2019:3517](https://patchblox.com/security/data/fix/linux/rhsa-2019-3517.md) | Nov 5, 2019 |
| Linux | kernel-core ol 8 | 0:4.18.0-147.el8 | [ELSA-2019-3517](https://patchblox.com/security/data/fix/linux/elsa-2019-3517.md) | Nov 14, 2019 |
| Linux | kernel-cross-headers ol 8 | 0:4.18.0-147.el8 | [ELSA-2019-3517](https://patchblox.com/security/data/fix/linux/elsa-2019-3517.md) | Nov 14, 2019 |
| Linux | kernel-debug RHEL 8 | 0:4.18.0-147.el8 | [RHSA-2019:3517](https://patchblox.com/security/data/fix/linux/rhsa-2019-3517.md) | Nov 5, 2019 |
| Linux | kernel-debug ol 8 | 0:4.18.0-147.el8 | [ELSA-2019-3517](https://patchblox.com/security/data/fix/linux/elsa-2019-3517.md) | Nov 14, 2019 |
| Linux | kernel-debug-core RHEL 8 | 0:4.18.0-147.el8 | [RHSA-2019:3517](https://patchblox.com/security/data/fix/linux/rhsa-2019-3517.md) | Nov 5, 2019 |
| Linux | kernel-debug-core ol 8 | 0:4.18.0-147.el8 | [ELSA-2019-3517](https://patchblox.com/security/data/fix/linux/elsa-2019-3517.md) | Nov 14, 2019 |
| Linux | kernel-debug-devel RHEL 8 | 0:4.18.0-147.el8 | [RHSA-2019:3517](https://patchblox.com/security/data/fix/linux/rhsa-2019-3517.md) | Nov 5, 2019 |
| Linux | kernel-debug-devel ol 8 | 0:4.18.0-147.el8 | [ELSA-2019-3517](https://patchblox.com/security/data/fix/linux/elsa-2019-3517.md) | Nov 14, 2019 |
| Linux | kernel-debug-modules RHEL 8 | 0:4.18.0-147.el8 | [RHSA-2019:3517](https://patchblox.com/security/data/fix/linux/rhsa-2019-3517.md) | Nov 5, 2019 |
| Linux | kernel-debug-modules ol 8 | 0:4.18.0-147.el8 | [ELSA-2019-3517](https://patchblox.com/security/data/fix/linux/elsa-2019-3517.md) | Nov 14, 2019 |
| Linux | kernel-debug-modules-extra RHEL 8 | 0:4.18.0-147.el8 | [RHSA-2019:3517](https://patchblox.com/security/data/fix/linux/rhsa-2019-3517.md) | Nov 5, 2019 |
| Linux | kernel-debug-modules-extra ol 8 | 0:4.18.0-147.el8 | [ELSA-2019-3517](https://patchblox.com/security/data/fix/linux/elsa-2019-3517.md) | Nov 14, 2019 |
| Linux | kernel-devel RHEL 8 | 0:4.18.0-147.el8 | [RHSA-2019:3517](https://patchblox.com/security/data/fix/linux/rhsa-2019-3517.md) | Nov 5, 2019 |
| Linux | kernel-devel ol 8 | 0:4.18.0-147.el8 | [ELSA-2019-3517](https://patchblox.com/security/data/fix/linux/elsa-2019-3517.md) | Nov 14, 2019 |
| Linux | kernel-doc RHEL 8 | 0:4.18.0-147.el8 | [RHSA-2019:3517](https://patchblox.com/security/data/fix/linux/rhsa-2019-3517.md) | Nov 5, 2019 |
| Linux | kernel-doc ol 8 | 0:4.18.0-147.el8 | [ELSA-2019-3517](https://patchblox.com/security/data/fix/linux/elsa-2019-3517.md) | Nov 14, 2019 |
| Linux | kernel-headers ol 8 | 0:4.18.0-147.el8 | [ELSA-2019-3517](https://patchblox.com/security/data/fix/linux/elsa-2019-3517.md) | Nov 14, 2019 |
| Linux | kernel-modules RHEL 8 | 0:4.18.0-147.el8 | [RHSA-2019:3517](https://patchblox.com/security/data/fix/linux/rhsa-2019-3517.md) | Nov 5, 2019 |
| Linux | kernel-modules ol 8 | 0:4.18.0-147.el8 | [ELSA-2019-3517](https://patchblox.com/security/data/fix/linux/elsa-2019-3517.md) | Nov 14, 2019 |
| Linux | kernel-modules-extra RHEL 8 | 0:4.18.0-147.el8 | [RHSA-2019:3517](https://patchblox.com/security/data/fix/linux/rhsa-2019-3517.md) | Nov 5, 2019 |
| Linux | kernel-modules-extra ol 8 | 0:4.18.0-147.el8 | [ELSA-2019-3517](https://patchblox.com/security/data/fix/linux/elsa-2019-3517.md) | Nov 14, 2019 |
| Linux | kernel-rt RHEL 8 | 0:4.18.0-147.rt24.93.el8 | [RHSA-2019:3309](https://patchblox.com/security/data/fix/linux/rhsa-2019-3309.md) | Nov 5, 2019 |
| Linux | kernel-rt-core RHEL 8 | 0:4.18.0-147.rt24.93.el8 | [RHSA-2019:3309](https://patchblox.com/security/data/fix/linux/rhsa-2019-3309.md) | Nov 5, 2019 |
| Linux | kernel-rt-debug RHEL 8 | 0:4.18.0-147.rt24.93.el8 | [RHSA-2019:3309](https://patchblox.com/security/data/fix/linux/rhsa-2019-3309.md) | Nov 5, 2019 |
| Linux | kernel-rt-debug-core RHEL 8 | 0:4.18.0-147.rt24.93.el8 | [RHSA-2019:3309](https://patchblox.com/security/data/fix/linux/rhsa-2019-3309.md) | Nov 5, 2019 |
| Linux | kernel-rt-debug-devel RHEL 8 | 0:4.18.0-147.rt24.93.el8 | [RHSA-2019:3309](https://patchblox.com/security/data/fix/linux/rhsa-2019-3309.md) | Nov 5, 2019 |
| Linux | kernel-rt-debug-kvm RHEL 8 | 0:4.18.0-147.rt24.93.el8 | [RHSA-2019:3309](https://patchblox.com/security/data/fix/linux/rhsa-2019-3309.md) | Nov 5, 2019 |
| Linux | kernel-rt-debug-modules RHEL 8 | 0:4.18.0-147.rt24.93.el8 | [RHSA-2019:3309](https://patchblox.com/security/data/fix/linux/rhsa-2019-3309.md) | Nov 5, 2019 |
| Linux | kernel-rt-debug-modules-extra RHEL 8 | 0:4.18.0-147.rt24.93.el8 | [RHSA-2019:3309](https://patchblox.com/security/data/fix/linux/rhsa-2019-3309.md) | Nov 5, 2019 |
| Linux | kernel-rt-devel RHEL 8 | 0:4.18.0-147.rt24.93.el8 | [RHSA-2019:3309](https://patchblox.com/security/data/fix/linux/rhsa-2019-3309.md) | Nov 5, 2019 |
| Linux | kernel-rt-kvm RHEL 8 | 0:4.18.0-147.rt24.93.el8 | [RHSA-2019:3309](https://patchblox.com/security/data/fix/linux/rhsa-2019-3309.md) | Nov 5, 2019 |
| Linux | kernel-rt-modules RHEL 8 | 0:4.18.0-147.rt24.93.el8 | [RHSA-2019:3309](https://patchblox.com/security/data/fix/linux/rhsa-2019-3309.md) | Nov 5, 2019 |
| Linux | kernel-rt-modules-extra RHEL 8 | 0:4.18.0-147.rt24.93.el8 | [RHSA-2019:3309](https://patchblox.com/security/data/fix/linux/rhsa-2019-3309.md) | Nov 5, 2019 |
| Linux | kernel-tools RHEL 8 | 0:4.18.0-147.el8 | [RHSA-2019:3517](https://patchblox.com/security/data/fix/linux/rhsa-2019-3517.md) | Nov 5, 2019 |
| Linux | kernel-tools ol 8 | 0:4.18.0-147.el8 | [ELSA-2019-3517](https://patchblox.com/security/data/fix/linux/elsa-2019-3517.md) | Nov 14, 2019 |
| Linux | kernel-tools-libs RHEL 8 | 0:4.18.0-147.el8 | [RHSA-2019:3517](https://patchblox.com/security/data/fix/linux/rhsa-2019-3517.md) | Nov 5, 2019 |
| Linux | kernel-tools-libs ol 8 | 0:4.18.0-147.el8 | [ELSA-2019-3517](https://patchblox.com/security/data/fix/linux/elsa-2019-3517.md) | Nov 14, 2019 |
| Linux | kernel-tools-libs-devel RHEL 8 | 0:4.18.0-147.el8 | [RHSA-2019:3517](https://patchblox.com/security/data/fix/linux/rhsa-2019-3517.md) | Nov 5, 2019 |
| Linux | kernel-tools-libs-devel ol 8 | 0:4.18.0-147.el8 | [ELSA-2019-3517](https://patchblox.com/security/data/fix/linux/elsa-2019-3517.md) | Nov 14, 2019 |
| Linux | kernel-zfcpdump RHEL 8 | 0:4.18.0-147.el8 | [RHSA-2019:3517](https://patchblox.com/security/data/fix/linux/rhsa-2019-3517.md) | Nov 5, 2019 |
| Linux | kernel-zfcpdump-core RHEL 8 | 0:4.18.0-147.el8 | [RHSA-2019:3517](https://patchblox.com/security/data/fix/linux/rhsa-2019-3517.md) | Nov 5, 2019 |
| Linux | kernel-zfcpdump-devel RHEL 8 | 0:4.18.0-147.el8 | [RHSA-2019:3517](https://patchblox.com/security/data/fix/linux/rhsa-2019-3517.md) | Nov 5, 2019 |
| Linux | kernel-zfcpdump-modules RHEL 8 | 0:4.18.0-147.el8 | [RHSA-2019:3517](https://patchblox.com/security/data/fix/linux/rhsa-2019-3517.md) | Nov 5, 2019 |
| Linux | kernel-zfcpdump-modules-extra RHEL 8 | 0:4.18.0-147.el8 | [RHSA-2019:3517](https://patchblox.com/security/data/fix/linux/rhsa-2019-3517.md) | Nov 5, 2019 |
| Linux | perf RHEL 8 | 0:4.18.0-147.el8 | [RHSA-2019:3517](https://patchblox.com/security/data/fix/linux/rhsa-2019-3517.md) | Nov 5, 2019 |
| Linux | perf ol 8 | 0:4.18.0-147.el8 | [ELSA-2019-3517](https://patchblox.com/security/data/fix/linux/elsa-2019-3517.md) | Nov 14, 2019 |
| Linux | python3-perf RHEL 8 | 0:4.18.0-147.el8 | [RHSA-2019:3517](https://patchblox.com/security/data/fix/linux/rhsa-2019-3517.md) | Nov 5, 2019 |
| Linux | python3-perf ol 8 | 0:4.18.0-147.el8 | [ELSA-2019-3517](https://patchblox.com/security/data/fix/linux/elsa-2019-3517.md) | Nov 14, 2019 |

---

Data as of 2026-11-07T12:40:37Z 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