CVE-2024-57951 — Use After Free in Linux

CWE-416 — Use After FreeCWE-20 — Improper Input Validation68 documents7 sources
Severity
7.8HIGHNVD
OSV5.9OSV5.5
EPSS
0.0%
top 98.10%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
8
LinuxLinux KernelDebian Linux+5 more
Timeline
PublishedFeb 12
Latest updateJul 17

Description

In the Linux kernel, the following vulnerability has been resolved: hrtimers: Handle CPU state correctly on hotplug Consider a scenario where a CPU transitions from CPUHP_ONLINE to halfway through a CPU hotunplug down to CPUHP_HRTIMERS_PREPARE, and then back to CPUHP_ONLINE: Since hrtimers_prepare_cpu() does not run, cpu_base.hres_active remains set to 1 throughout. However, during a CPU unplug operation, the tick and the clockevents are shut down at CPUHP_AP_TICK_DYING. On return to the onli…

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages10 packages

▶NVDlinux/linux_kernel4.19.302 — 4.20+7
▶Debianlinux/linux_kernel< 5.10.234-1+3
▶Ubuntulinux/linux_kernel< 5.4.0-211.231+2

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

34
OSV
linux-hwe-6.8 vulnerabilities↗2025-07-17
▶
OSV
linux-gcp, linux-gcp-6.8 vulnerabilities↗2025-06-30
▶
OSV
linux-oracle, linux-oracle-6.8, linux-raspi vulnerabilities↗2025-06-26
▶
OSV
linux-raspi-realtime vulnerabilities↗2025-06-25
▶
OSV
linux-azure-nvidia vulnerabilities↗2025-06-25
▶

📋Vendor Advisories

33
Ubuntu
Linux kernel (HWE) vulnerabilities↗2025-07-17
▶
Ubuntu
Linux kernel vulnerabilities↗2025-06-30
▶
Ubuntu
Linux kernel (Azure, N-Series) vulnerabilities↗2025-06-25
▶
Ubuntu
Linux kernel (Raspberry Pi Real-time) vulnerabilities↗2025-06-25
▶
Ubuntu
Linux kernel (Azure) vulnerabilities↗2025-06-24
▶
CVE-2024-57951 — Use After Free in Linux | cvebase