CVE-2026-68214: media: rtl2832: fix use-after-free in rtl2832_remove()

Q: What is the severity of CVE-2026-68214?

CVE-2026-68214 has a risk score of 44, indicating a significant security vulnerability in the Linux kernel.

Q: What does CVE-2026-68214 involve?

CVE-2026-68214 involves a use-after-free vulnerability in the rtl2832_remove() function of the Linux kernel.

Q: How do I fix CVE-2026-68214?

To fix CVE-2026-68214, update your Linux kernel to the latest version where the vulnerability has been addressed.

Q: What systems are affected by CVE-2026-68214?

CVE-2026-68214 affects systems running specific versions of the Linux kernel that utilize the rtl2832 media drivers.

Q: What is the primary function impacted by CVE-2026-68214?

CVE-2026-68214 primarily impacts the rtl2832_remove() function, which is responsible for handling the rtl2832 media device removal.

Published Aug 10, 2026

Updated

In the Linux kernel, the following vulnerability has been resolved:

media: rtl2832: fix use-after-free in rtl2832remove()

canceldelayedworksync() is called before i2cmuxdeladapters() in rtl2832remove(). While the cancel waits for any running instance of i2cgatework to finish, it does not prevent the timer from being rescheduled by a concurrent thread.

During probe, the r820tattach() call attempts I2C transfers through the mux adapter. These transfers go through i2cmuxmasterxfer(), which calls rtl2832deselect() after the transfer completes, rescheduling i2cgatework via scheduledelayedwork(). If this transfer is still in flight when rtl2832remove() runs, rtl2832deselect() can reschedule i2cgatework after it has been cancelled, causing a use-after-free when kfree(dev) is called.

Fix this by calling i2cmuxdeladapters() before canceldelayedworksync(). Once the mux adapter is unregistered, no new I2C transfers can go through it, so rtl2832deselect() can no longer reschedule i2cgatework. The subsequent canceldelayedworksync() is then guaranteed to be final.

Affected Software

262 affected componentsFixes available

Linux Kernel

Microsoft azl3 kernel 6.6.143.1-1<6.6.150.1-1

6.6.150.1-1

ubuntu/linux-azure*

ubuntu/linux-aws-hwe*

ubuntu/linux-azure*

ubuntu/linux-gcp*

ubuntu/linux-hwe*

ubuntu/linux-hwe-edge*

ubuntu/linux-oracle*

ubuntu/linux*

ubuntu/linux-aws*

ubuntu/linux-aws-5.0*

ubuntu/linux-aws-5.3*

ubuntu/linux-aws-5.4*

ubuntu/linux-azure*

ubuntu/linux-azure-4.15*

ubuntu/linux-azure-5.3*

ubuntu/linux-azure-5.4*

ubuntu/linux-azure-edge*

ubuntu/linux-gcp*

ubuntu/linux-gcp-4.15*

ubuntu/linux-gcp-5.3*

ubuntu/linux-gcp-5.4*

ubuntu/linux-gke-4.15*

ubuntu/linux-gke-5.4*

ubuntu/linux-gkeop-5.4*

ubuntu/linux-hwe*

ubuntu/linux-hwe-5.4*

ubuntu/linux-hwe-edge*

ubuntu/linux-ibm-5.4*

ubuntu/linux-kvm*

ubuntu/linux-oem*

ubuntu/linux-oracle*

ubuntu/linux-oracle-5.0*

ubuntu/linux-oracle-5.3*

ubuntu/linux-oracle-5.4*

ubuntu/linux-raspi-5.4*

ubuntu/linux-aws-fips*

ubuntu/linux-azure-fips*

ubuntu/linux-fips*

ubuntu/linux-gcp-fips*

ubuntu/linux-aws-fips*

ubuntu/linux-azure-fips*

ubuntu/linux-fips*

ubuntu/linux-gcp-fips*

ubuntu/linux*

ubuntu/linux-aws*

ubuntu/linux-aws-5.11*

ubuntu/linux-aws-5.13*

ubuntu/linux-aws-5.15<5.15.0-1117.124~20.04.1

5.15.0-1117.124~20.04.1

ubuntu/linux-aws-5.8*

ubuntu/linux-azure*

ubuntu/linux-azure-5.11*

ubuntu/linux-azure-5.13*

ubuntu/linux-azure-5.15<5.15.0-1123.132~20.04.1

5.15.0-1123.132~20.04.1

ubuntu/linux-azure-5.8*

ubuntu/linux-azure-fde*

ubuntu/linux-azure-fde-5.15<5.15.0-1122.131~20.04.1

5.15.0-1122.131~20.04.1

ubuntu/linux-bluefield*

ubuntu/linux-gcp*

ubuntu/linux-gcp-5.11*

ubuntu/linux-gcp-5.13*

ubuntu/linux-gcp-5.15<5.15.0-1118.128~20.04.1

5.15.0-1118.128~20.04.1

ubuntu/linux-gcp-5.8*

ubuntu/linux-gke*

ubuntu/linux-gke-5.15*

ubuntu/linux-gkeop*

ubuntu/linux-gkeop-5.15*

ubuntu/linux-hwe-5.11*

ubuntu/linux-hwe-5.13*

ubuntu/linux-hwe-5.15<5.15.0-198.208~20.04.1

5.15.0-198.208~20.04.1

ubuntu/linux-hwe-5.8*

ubuntu/linux-ibm*

ubuntu/linux-ibm-5.15<5.15.0-1111.115~20.04.1

5.15.0-1111.115~20.04.1

ubuntu/linux-intel-5.13*

ubuntu/linux-intel-iotg-5.15<5.15.0-1112.118~20.04.1

5.15.0-1112.118~20.04.1

ubuntu/linux-iot*

ubuntu/linux-kvm*

ubuntu/linux-lowlatency-hwe-5.15<5.15.0-195.205~20.04.1

5.15.0-195.205~20.04.1

ubuntu/linux-nvidia-tegra-5.15<5.15.0-1070.72~20.04.1

5.15.0-1070.72~20.04.1

ubuntu/linux-oem-5.10*

ubuntu/linux-oem-5.13*

ubuntu/linux-oem-5.6*

ubuntu/linux-oracle*

ubuntu/linux-oracle-5.11*

ubuntu/linux-oracle-5.13*

ubuntu/linux-oracle-5.15<5.15.0-1114.120~20.04.1

5.15.0-1114.120~20.04.1

ubuntu/linux-oracle-5.8*

ubuntu/linux-raspi*

ubuntu/linux-raspi2*

ubuntu/linux-riscv*

ubuntu/linux-riscv-5.11*

ubuntu/linux-riscv-5.15<5.15.0-1111.115~20.04.1

5.15.0-1111.115~20.04.1

ubuntu/linux-riscv-5.8*

ubuntu/linux-xilinx-zynqmp*

ubuntu/linux-aws-fips*

ubuntu/linux-azure-fips*

ubuntu/linux-fips*

ubuntu/linux-gcp-fips*

ubuntu/linux-aws-fips*

ubuntu/linux-azure-fips*

ubuntu/linux-fips*

ubuntu/linux-gcp-fips*

ubuntu/linux<5.15.0-198.208

5.15.0-198.208

ubuntu/linux-allwinner-5.19*

ubuntu/linux-aws<5.15.0-1117.124

5.15.0-1117.124

ubuntu/linux-aws-5.19*

ubuntu/linux-aws-6.2*

ubuntu/linux-aws-6.5*

ubuntu/linux-aws-6.8*

ubuntu/linux-azure<5.15.0-1123.132

5.15.0-1123.132

ubuntu/linux-azure-5.19*

ubuntu/linux-azure-6.2*

ubuntu/linux-azure-6.5*

ubuntu/linux-azure-6.8*

ubuntu/linux-azure-fde<5.15.0-1122.131

5.15.0-1122.131

ubuntu/linux-azure-fde-5.19*

ubuntu/linux-azure-fde-6.2*

ubuntu/linux-azure-fde-6.8*

ubuntu/linux-gcp<5.15.0-1118.128

5.15.0-1118.128

ubuntu/linux-gcp-5.19*

ubuntu/linux-gcp-6.2*

ubuntu/linux-gcp-6.5*

ubuntu/linux-gcp-6.8*

ubuntu/linux-gke<5.15.0-1113.119

5.15.0-1113.119

ubuntu/linux-gkeop<5.15.0-1100.108

5.15.0-1100.108

ubuntu/linux-hwe-5.19*

ubuntu/linux-hwe-6.2*

ubuntu/linux-hwe-6.5*

ubuntu/linux-ibm<5.15.0-1111.115

5.15.0-1111.115

ubuntu/linux-ibm-6.8*

ubuntu/linux-intel-iot-realtime*

ubuntu/linux-intel-iotg<5.15.0-1112.118

5.15.0-1112.118

ubuntu/linux-kvm<5.15.0-1109.114

5.15.0-1109.114

ubuntu/linux-lowlatency<5.15.0-195.205

5.15.0-195.205

ubuntu/linux-lowlatency-hwe-5.19*

ubuntu/linux-lowlatency-hwe-6.2*

ubuntu/linux-lowlatency-hwe-6.5*

ubuntu/linux-lowlatency-hwe-6.8*

ubuntu/linux-nvidia<5.15.0-1112.113

5.15.0-1112.113

ubuntu/linux-nvidia-6.2*

ubuntu/linux-nvidia-6.5*

ubuntu/linux-nvidia-6.8*

ubuntu/linux-nvidia-tegra<5.15.0-1070.72

5.15.0-1070.72

ubuntu/linux-nvidia-tegra-igx<5.15.0-1059.59

5.15.0-1059.59

ubuntu/linux-oem-5.17*

ubuntu/linux-oem-6.0*

ubuntu/linux-oem-6.1*

ubuntu/linux-oem-6.5*

ubuntu/linux-oracle<5.15.0-1114.120

5.15.0-1114.120

ubuntu/linux-oracle-6.5*

ubuntu/linux-oracle-6.8*

ubuntu/linux-raspi*

ubuntu/linux-realtime*

ubuntu/linux-riscv*

ubuntu/linux-riscv-5.19*

ubuntu/linux-riscv-6.5*

ubuntu/linux-riscv-6.8*

ubuntu/linux-starfive-5.19*

ubuntu/linux-starfive-6.2*

ubuntu/linux-starfive-6.5*

ubuntu/linux-xilinx-zynqmp<5.15.0-1080.84

5.15.0-1080.84

ubuntu/linux-bluefield<5.15.0-1101.103

5.15.0-1101.103

ubuntu/linux-intel-iot-realtime<5.15.0-1109.111

5.15.0-1109.111

ubuntu/linux-realtime<5.15.0-1116.125

5.15.0-1116.125

ubuntu/linux-realtime-6.8*

ubuntu/linux-aws-fips*

ubuntu/linux-azure-fips*

ubuntu/linux-fips*

ubuntu/linux-gcp-fips*

ubuntu/linux-aws-fips<5.15.0-1117.124+fips1

5.15.0-1117.124+fips1

ubuntu/linux-azure-fips<5.15.0-1123.132+fips1

5.15.0-1123.132+fips1

ubuntu/linux-fips<5.15.0-198.208+fips1

5.15.0-198.208+fips1

ubuntu/linux-gcp-fips<5.15.0-1118.128+fips1

5.15.0-1118.128+fips1

ubuntu/linux<6.8.0-147.147

6.8.0-147.147

ubuntu/linux-aws<6.8.0-1067.70

6.8.0-1067.70

ubuntu/linux-aws-6.14*

ubuntu/linux-aws-6.17*

ubuntu/linux-aws-7.0<7.0.0-1014.14~24.04.1

7.0.0-1014.14~24.04.1

ubuntu/linux-azure<6.8.0-1071.79

6.8.0-1071.79

ubuntu/linux-azure-6.11*

ubuntu/linux-azure-6.14*

ubuntu/linux-azure-6.17*

ubuntu/linux-azure-7.0<7.0.0-1017.17~24.04.1

7.0.0-1017.17~24.04.1

ubuntu/linux-azure-fde<6.8.0-1069.76

6.8.0-1069.76

ubuntu/linux-azure-fde-6.14*

ubuntu/linux-azure-fde-6.17*

ubuntu/linux-azure-fde-7.0<7.0.0-1016.16~24.04.1

7.0.0-1016.16~24.04.1

ubuntu/linux-azure-nvidia*

ubuntu/linux-azure-nvidia-6.14*

ubuntu/linux-gcp<6.8.0-1071.79

6.8.0-1071.79

ubuntu/linux-gcp-6.11*

ubuntu/linux-gcp-6.14*

ubuntu/linux-gcp-7.0<7.0.0-1014.14~24.04.1

7.0.0-1014.14~24.04.1

ubuntu/linux-gke<6.8.0-1066.74

6.8.0-1066.74

ubuntu/linux-gkeop<6.8.0-1052.56

6.8.0-1052.56

ubuntu/linux-hwe-6.11*

ubuntu/linux-hwe-6.14*

ubuntu/linux-hwe-6.17*

ubuntu/linux-hwe-7.0<7.0.0-38.38~24.04.4

7.0.0-38.38~24.04.4

ubuntu/linux-ibm<6.8.0-1067.68

6.8.0-1067.68

ubuntu/linux-lowlatency<6.8.0-147.147.1

6.8.0-147.147.1

ubuntu/linux-lowlatency-hwe-6.11*

ubuntu/linux-nvidia*

ubuntu/linux-nvidia-6.11*

ubuntu/linux-nvidia-6.17*

ubuntu/linux-nvidia-7.0<7.0.0-1024.25~24.04.1

7.0.0-1024.25~24.04.1

ubuntu/linux-nvidia-lowlatency*

ubuntu/linux-nvidia-tegra*

ubuntu/linux-oem-6.11*

ubuntu/linux-oem-6.14*

ubuntu/linux-oem-6.17*

ubuntu/linux-oem-6.8*

ubuntu/linux-oracle<6.8.0-1064.67

6.8.0-1064.67

ubuntu/linux-oracle-6.14*

ubuntu/linux-oracle-6.17*

ubuntu/linux-oracle-7.0<7.0.0-1013.13~24.04.1

7.0.0-1013.13~24.04.1

ubuntu/linux-raspi*

ubuntu/linux-raspi-realtime*

ubuntu/linux-realtime*

ubuntu/linux-riscv*

ubuntu/linux-riscv-6.14*

ubuntu/linux-riscv-6.17*

ubuntu/linux-riscv-7.0<7.0.0-38.38.1~24.04.1

7.0.0-38.38.1~24.04.1

ubuntu/linux-vmware<6.8.0-1008.8

6.8.0-1008.8

ubuntu/linux-xilinx*

ubuntu/linux-bluefield<6.8.0-1033.38

6.8.0-1033.38

ubuntu/linux-raspi-realtime*

ubuntu/linux-realtime<6.8.1-1062.63

6.8.1-1062.63

ubuntu/linux-realtime-6.14*

ubuntu/linux-realtime-6.17*

ubuntu/linux-aws-fips<6.8.0-1067.70+fips1

6.8.0-1067.70+fips1

ubuntu/linux-azure-fips<6.8.0-1071.79+fips1

6.8.0-1071.79+fips1

ubuntu/linux-fips<6.8.0-147.147+fips1

6.8.0-147.147+fips1

ubuntu/linux-gcp-fips<6.8.0-1071.79+fips1

6.8.0-1071.79+fips1

ubuntu/linux<7.0.0-38.38

7.0.0-38.38

ubuntu/linux-aws<7.0.0-1014.14

7.0.0-1014.14

ubuntu/linux-azure<7.0.0-1017.17

7.0.0-1017.17

ubuntu/linux-azure-fde<7.0.0-1016.16

7.0.0-1016.16

ubuntu/linux-gcp<7.0.0-1014.14

7.0.0-1014.14

ubuntu/linux-gke<7.0.0-1008.9

7.0.0-1008.9

ubuntu/linux-ibm<7.0.0-1015.15

7.0.0-1015.15

ubuntu/linux-nvidia*

ubuntu/linux-nvidia-bos<7.0.0-2022.23

7.0.0-2022.23

ubuntu/linux-oem-7.0<7.0.0-1015.15

7.0.0-1015.15

ubuntu/linux-oracle<7.0.0-1013.13

7.0.0-1013.13

ubuntu/linux-raspi*

ubuntu/linux-realtime<7.0.0-38.38.1

7.0.0-38.38.1

ubuntu/linux-riscv<7.0.0-38.38.1

7.0.0-38.38.1

debian/linux<6.1.187-1

6.1.187-1

debian/linux<6.12.101-1

6.12.101-1

debian/linux<7.1.6-1

7.1.6-1

debian/linux-6.12<6.12.101-1~deb12u1

6.12.101-1~deb12u1

linux/kernel>=4.7.0<5.10.265

5.10.265

linux/kernel>=5.11.0<5.15.216

5.15.216

linux/kernel>=5.16.0<6.1.183

6.1.183

linux/kernel>=6.2.0<6.6.148

6.6.148

linux/kernel>=6.7.0<6.12.101

6.12.101

linux/kernel>=6.13.0<6.18.42

6.18.42

linux/kernel>=6.19.0<7.1.6

7.1.6

debian/linux<=6.1.176-1

6.1.190-16.12.107-16.12.116-17.2.15-17.3.3-1

debian/linux-6.12

6.12.115-2~deb12u1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

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Fixed in 6.6.150.1-1
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Fixed in 6.1.187-1
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Fixed in 6.12.101-1
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Fixed in 7.1.6-1
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Fixed in 6.12.101-1~deb12u1
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Fixed in 5.15.216
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Fixed in 6.1.183
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Fixed in 6.6.148
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Fixed in 6.12.101
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Fixed in 6.18.42
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Fixed in 7.1.6
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Fixed in 6.1.190-1Fixed in 6.12.107-1Fixed in 6.12.116-1Fixed in 7.2.15-1Fixed in 7.3.3-1
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Fixed in 5.15.0-1117.124~20.04.1
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Fixed in 5.15.0-1123.132~20.04.1
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Fixed in 5.15.0-1122.131~20.04.1
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Fixed in 5.15.0-1118.128~20.04.1
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Fixed in 5.15.0-198.208~20.04.1
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Fixed in 6.8.0-1064.67
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Fixed in 7.0.0-1013.13~24.04.1
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Fixed in 7.0.0-38.38.1~24.04.1
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Fixed in 6.8.0-1008.8
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Fixed in 6.8.0-1033.38
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Fixed in 6.8.1-1062.63
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Fixed in 6.8.0-1067.70+fips1
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Fixed in 6.8.0-1071.79+fips1
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Fixed in 6.8.0-147.147+fips1
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Fixed in 6.8.0-1071.79+fips1
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Fixed in 7.0.0-38.38
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Fixed in 7.0.0-1014.14
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Fixed in 7.0.0-1017.17
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Fixed in 7.0.0-1016.16
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Fixed in 7.0.0-1014.14
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Fixed in 7.0.0-1008.9
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Fixed in 7.0.0-1015.15
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Fixed in 7.0.0-2022.23
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Fixed in 7.0.0-1015.15
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Fixed in 7.0.0-1013.13
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Fixed in 7.0.0-38.38.1
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Fixed in 7.0.0-38.38.1
Configuration
Call i2c_mux_del_adapters() before cancel_delayed_work_sync() in rtl2832_remove() so no new I2C transfers can reschedule i2c_gate_work during teardown.
Linux kernel media rtl2832 rtl2832_remove() teardown order = i2c_mux_del_adapters() before cancel_delayed_work_sync()

Event History

Aug 10, 2026

CVE Published

via MITRE·12:00 PM

Data Sourced

via MITRE·12:00 PM

Description

Data Sourced

via OSV·12:00 PM

DescriptionAffected Software

Data Sourced

via NVD·01:20 PM

Description

Aug 11, 2026

Data Sourced

via Microsoft·08:16 AM

DescriptionSeverityWeakness

Data Sourced

via Microsoft·08:16 AM

Affected Software

Nov 10, 2026

Data Sourced

via OSV·02:51 AM

Severity

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

What is the severity of CVE-2026-68214?

CVE-2026-68214 has a risk score of 44, indicating a significant security vulnerability in the Linux kernel.

What does CVE-2026-68214 involve?

CVE-2026-68214 involves a use-after-free vulnerability in the rtl2832_remove() function of the Linux kernel.

How do I fix CVE-2026-68214?

To fix CVE-2026-68214, update your Linux kernel to the latest version where the vulnerability has been addressed.

What systems are affected by CVE-2026-68214?

CVE-2026-68214 affects systems running specific versions of the Linux kernel that utilize the rtl2832 media drivers.

What is the primary function impacted by CVE-2026-68214?

CVE-2026-68214 primarily impacts the rtl2832_remove() function, which is responsible for handling the rtl2832 media device removal.

CVE-2026-68214: media: rtl2832: fix use-after-free in rtl2832_remove()

Affected Software

Remediation

Event History

Peer vulnerabilities

Frequently Asked Questions

What is the severity of CVE-2026-68214?

What does CVE-2026-68214 involve?

How do I fix CVE-2026-68214?

What systems are affected by CVE-2026-68214?

What is the primary function impacted by CVE-2026-68214?

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