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🛡️ CVE-2024-50019 on Ubuntu — linux

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

In the Linux kernel, the following vulnerability has been resolved: kthread: unpark only parked kthread Calling into kthread unparking unconditionally is mostly harmless when the kthread is already unparked. The wake up is then simply ignored because the target is not in TASK_PARKED state. However if the kthread is per CPU, the wake up is preceded by a call to kthread_bind() which expects the task to be inactive and in TASK_PARKED state, which obviously isn't the case if it is unparked. As a result, calling kthread_stop() on an unparked per-cpu kthread triggers such a warning: WARNING: CPU: 0 PID: 11 at kernel/kthread.c:525 __kthread_bind_mask kernel/kthread.c:525 <TASK> kthread_stop+0x17a/0x630 kernel/kthread.c:707 destroy_workqueue+0x136/0xc40 kernel/workqueue.c:5810 wg_destruct+0x1e2/0x2e0 drivers/net/wireguard/device.c:257 netdev_run_todo+0xe1a/0x1000 net/core/dev.c:10693 default_device_exit_batch+0xa14/0xa90 net/core/dev.c:11769 ops_exit_list net/core/net_namespace.c:178 [inline] cleanup_net+0x89d/0xcc0 net/core/net_namespace.c:640 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd70 kernel/workqueue.c:3393 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 </TASK> Fix this with skipping unecessary unparking while stopping a kthread.

Distribution advisory

This page covers CVE-2024-50019 as tracked by Ubuntu, for the package linux. The fix is available in version 6.8.0-56.58; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

  • Attack vector: Local — a local account, shell or session on the host is needed.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: Low — an ordinary user account is enough.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: None.
  • Integrity impact: None.
  • Availability impact: High — total loss, or loss the attacker controls.

Affected software

UBUNTU-CVE-2024-50019 is recorded against 122 packages.

  • linux (fixed in 6.8.0-56.58)
  • linux-allwinner-5.19
  • linux-aws (fixed in 6.8.0-1025.27)
  • linux-aws-5.0
  • linux-aws-5.11
  • linux-aws-5.13
  • linux-aws-5.15 (fixed in 5.15.0-1073.79~20.04.1)
  • linux-aws-5.19
  • linux-aws-5.3
  • linux-aws-5.8
  • linux-aws-6.2
  • linux-aws-6.5
  • linux-aws-6.8 (fixed in 6.8.0-1027.29~22.04.1)
  • linux-aws-fips (fixed in 5.15.0-1073.79+fips1)
  • linux-azure (fixed in 6.8.0-1025.30)
  • linux-azure-5.11
  • linux-azure-5.13
  • linux-azure-5.15 (fixed in 5.15.0-1078.87~20.04.1)
  • linux-azure-5.19
  • linux-azure-5.3
  • linux-azure-5.8
  • linux-azure-6.11 (fixed in 6.11.0-1012.12~24.04.1)
  • linux-azure-6.2
  • linux-azure-6.5
Show the remaining 98 packages
  • linux-azure-6.8 (fixed in 6.8.0-1025.30~22.04.1)
  • linux-azure-edge
  • linux-azure-fde
  • linux-azure-fde-5.19
  • linux-azure-fde-6.2
  • linux-azure-fips (fixed in 5.15.0-1078.87+fips1)
  • linux-azure-nvidia (fixed in 6.8.0-1014.15)
  • linux-bluefield
  • linux-fips (fixed in 6.8.0-78.78+fips1)
  • linux-gcp (fixed in 6.8.0-1026.28)
  • linux-gcp-5.11
  • linux-gcp-5.13
  • linux-gcp-5.15 (fixed in 5.15.0-1072.80~20.04.1)
  • linux-gcp-5.19
  • linux-gcp-5.3
  • linux-gcp-5.8
  • linux-gcp-6.11 (fixed in 6.11.0-1011.11~24.04.1)
  • linux-gcp-6.2
  • linux-gcp-6.5
  • linux-gcp-6.8 (fixed in 6.8.0-1026.28~22.04.1)
  • linux-gcp-fips (fixed in 5.15.0-1072.80+fips1)
  • linux-gke (fixed in 6.8.0-1021.25)
  • linux-gke-4.15
  • linux-gke-5.15
  • linux-gke-5.4
  • linux-gkeop (fixed in 6.8.0-1008.10)
  • linux-gkeop-5.15
  • linux-gkeop-5.4
  • linux-hwe
  • linux-hwe-5.11
  • linux-hwe-5.13
  • linux-hwe-5.15 (fixed in 5.15.0-127.137~20.04.1)
  • linux-hwe-5.19
  • linux-hwe-5.8
  • linux-hwe-6.2
  • linux-hwe-6.5
  • linux-hwe-6.8 (fixed in 6.8.0-57.59~22.04.1)
  • linux-hwe-edge
  • linux-ibm (fixed in 6.8.0-1022.22)
  • linux-ibm-5.15 (fixed in 5.15.0-1066.69~20.04.1)
  • linux-ibm-6.8 (fixed in 6.8.0-1023.23~22.04.1)
  • linux-intel-5.13
  • linux-intel-iot-realtime (fixed in 5.15.0-1066.68)
  • linux-intel-iotg (fixed in 5.15.0-1071.77)
  • linux-intel-iotg-5.15 (fixed in 5.15.0-1071.77~20.04.1)
  • linux-kvm (fixed in 5.15.0-1070.75)
  • linux-lowlatency (fixed in 6.8.0-56.58.1)
  • linux-lowlatency-hwe-5.15 (fixed in 5.15.0-127.137~20.04.1)
  • linux-lowlatency-hwe-5.19
  • linux-lowlatency-hwe-6.2
  • linux-lowlatency-hwe-6.5
  • linux-lowlatency-hwe-6.8 (fixed in 6.8.0-56.58.1~22.04.1)
  • linux-nvidia (fixed in 6.8.0-1024.27)
  • linux-nvidia-6.11 (fixed in 6.11.0-1007.7)
  • linux-nvidia-6.2
  • linux-nvidia-6.5
  • linux-nvidia-6.8 (fixed in 6.8.0-1024.27~22.04.1)
  • linux-nvidia-lowlatency (fixed in 6.8.0-1024.27.1)
  • linux-nvidia-tegra (fixed in 6.8.0-1004.4)
  • linux-nvidia-tegra-5.15 (fixed in 5.15.0-1032.32~20.04.1)
  • linux-nvidia-tegra-igx (fixed in 5.15.0-1020.20)
  • linux-oem
  • linux-oem-5.10
  • linux-oem-5.13
  • linux-oem-5.14
  • linux-oem-5.17
  • linux-oem-5.6
  • linux-oem-6.0
  • linux-oem-6.1
  • linux-oem-6.11 (fixed in 6.11.0-1015.15)
  • linux-oem-6.5
  • linux-oem-6.8 (fixed in 6.8.0-1024.24)
  • linux-oracle (fixed in 6.8.0-1022.23)
  • linux-oracle-5.0
  • linux-oracle-5.11
  • linux-oracle-5.13
  • linux-oracle-5.15 (fixed in 5.15.0-1071.77~20.04.1)
  • linux-oracle-5.3
  • linux-oracle-5.8
  • linux-oracle-6.5
  • linux-oracle-6.8 (fixed in 6.8.0-1022.23~22.04.1)
  • linux-raspi (fixed in 6.8.0-1028.32)
  • linux-raspi-realtime (fixed in 6.8.0-2023.24)
  • linux-raspi2
  • linux-realtime (fixed in 6.8.1-1018.19)
  • linux-realtime-6.8 (fixed in 6.8.1-1018.19~22.04.1)
  • linux-riscv (fixed in 6.8.0-56.58.1)
  • linux-riscv-5.11
  • linux-riscv-5.15 (fixed in 5.15.0-1069.73~20.04.1)
  • linux-riscv-5.19
  • linux-riscv-5.8
  • linux-riscv-6.5
  • linux-riscv-6.8 (fixed in 6.8.0-56.58.1~22.04.1)
  • linux-starfive-5.19
  • linux-starfive-6.2
  • linux-starfive-6.5
  • linux-xilinx (fixed in 6.8.0-1017.18)
  • linux-xilinx-zynqmp (fixed in 5.15.0-1039.43)

Timeline and source

Published on 21 October 2024 and last revised on 17 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

ubuntu.com (Report)
www.cve.org (Report)
git.kernel.org (Report)
git.kernel.org (Report)
git.kernel.org (Report)
git.kernel.org (Report)
git.kernel.org (Report)
git.kernel.org (Report)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)

Other advisories for this package

linux has other advisories on record. If you are patching this one, these are worth checking on the same host:

CVE-2024-50019 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2024-10-21
Updated 2026-08-20
Modified 2026-08-17
Fix URL N/A

Affected Packages

Software From version Fixed in
linux — 6.8.0-56.58
linux-allwinner-5.19 — —
linux-aws — 6.8.0-1025.27
linux-aws-5.0 — —
linux-aws-5.11 — —
linux-aws-5.13 — —
linux-aws-5.15 — 5.15.0-1073.79~20.04.1
linux-aws-5.19 — —
linux-aws-5.3 — —
linux-aws-5.8 — —
linux-aws-6.2 — —
linux-aws-6.5 — —
linux-aws-6.8 — 6.8.0-1027.29~22.04.1
linux-aws-fips — 5.15.0-1073.79+fips1
linux-azure — 6.8.0-1025.30
linux-azure-5.11 — —
linux-azure-5.13 — —
linux-azure-5.15 — 5.15.0-1078.87~20.04.1
linux-azure-5.19 — —
linux-azure-5.3 — —
linux-azure-5.8 — —
linux-azure-6.11 — 6.11.0-1012.12~24.04.1
linux-azure-6.2 — —
linux-azure-6.5 — —
linux-azure-6.8 — 6.8.0-1025.30~22.04.1
linux-azure-edge — —
linux-azure-fde — —
linux-azure-fde-5.19 — —
linux-azure-fde-6.2 — —
linux-azure-fips — 5.15.0-1078.87+fips1
linux-azure-nvidia — 6.8.0-1014.15
linux-bluefield — —
linux-fips — 6.8.0-78.78+fips1
linux-gcp — 6.8.0-1026.28
linux-gcp-5.11 — —
linux-gcp-5.13 — —
linux-gcp-5.15 — 5.15.0-1072.80~20.04.1
linux-gcp-5.19 — —
linux-gcp-5.3 — —
linux-gcp-5.8 — —
linux-gcp-6.11 — 6.11.0-1011.11~24.04.1
linux-gcp-6.2 — —
linux-gcp-6.5 — —
linux-gcp-6.8 — 6.8.0-1026.28~22.04.1
linux-gcp-fips — 5.15.0-1072.80+fips1
linux-gke — 6.8.0-1021.25
linux-gke-4.15 — —
linux-gke-5.15 — —
linux-gke-5.4 — —
linux-gkeop — 6.8.0-1008.10
linux-gkeop-5.15 — —
linux-gkeop-5.4 — —
linux-hwe — —
linux-hwe-5.11 — —
linux-hwe-5.13 — —
linux-hwe-5.15 — 5.15.0-127.137~20.04.1
linux-hwe-5.19 — —
linux-hwe-5.8 — —
linux-hwe-6.2 — —
linux-hwe-6.5 — —
linux-hwe-6.8 — 6.8.0-57.59~22.04.1
linux-hwe-edge — —
linux-ibm — 6.8.0-1022.22
linux-ibm-5.15 — 5.15.0-1066.69~20.04.1
linux-ibm-6.8 — 6.8.0-1023.23~22.04.1
linux-intel-5.13 — —
linux-intel-iot-realtime — 5.15.0-1066.68
linux-intel-iotg — 5.15.0-1071.77
linux-intel-iotg-5.15 — 5.15.0-1071.77~20.04.1
linux-kvm — 5.15.0-1070.75
linux-lowlatency — 6.8.0-56.58.1
linux-lowlatency-hwe-5.15 — 5.15.0-127.137~20.04.1
linux-lowlatency-hwe-5.19 — —
linux-lowlatency-hwe-6.2 — —
linux-lowlatency-hwe-6.5 — —
linux-lowlatency-hwe-6.8 — 6.8.0-56.58.1~22.04.1
linux-nvidia — 6.8.0-1024.27
linux-nvidia-6.11 — 6.11.0-1007.7
linux-nvidia-6.2 — —
linux-nvidia-6.5 — —
linux-nvidia-6.8 — 6.8.0-1024.27~22.04.1
linux-nvidia-lowlatency — 6.8.0-1024.27.1
linux-nvidia-tegra — 6.8.0-1004.4
linux-nvidia-tegra-5.15 — 5.15.0-1032.32~20.04.1
linux-nvidia-tegra-igx — 5.15.0-1020.20
linux-oem — —
linux-oem-5.10 — —
linux-oem-5.13 — —
linux-oem-5.14 — —
linux-oem-5.17 — —
linux-oem-5.6 — —
linux-oem-6.0 — —
linux-oem-6.1 — —
linux-oem-6.11 — 6.11.0-1015.15
linux-oem-6.5 — —
linux-oem-6.8 — 6.8.0-1024.24
linux-oracle — 6.8.0-1022.23
linux-oracle-5.0 — —
linux-oracle-5.11 — —
linux-oracle-5.13 — —
linux-oracle-5.15 — 5.15.0-1071.77~20.04.1
linux-oracle-5.3 — —
linux-oracle-5.8 — —
linux-oracle-6.5 — —
linux-oracle-6.8 — 6.8.0-1022.23~22.04.1
linux-raspi — 6.8.0-1028.32
linux-raspi-realtime — 6.8.0-2023.24
linux-raspi2 — —
linux-realtime — 6.8.1-1018.19
linux-realtime-6.8 — 6.8.1-1018.19~22.04.1
linux-riscv — 6.8.0-56.58.1
linux-riscv-5.11 — —
linux-riscv-5.15 — 5.15.0-1069.73~20.04.1
linux-riscv-5.19 — —
linux-riscv-5.8 — —
linux-riscv-6.5 — —
linux-riscv-6.8 — 6.8.0-56.58.1~22.04.1
linux-starfive-5.19 — —
linux-starfive-6.2 — —
linux-starfive-6.5 — —
linux-xilinx — 6.8.0-1017.18
linux-xilinx-zynqmp — 5.15.0-1039.43

References

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