Use-after-free in Linux kernel - CVE-2024-0582

Vulnerability identifier: #VU86777

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2024-0582

CWE-ID: CWE-416

Exploitation vector: Local access

Exploit availability: Public exploit is available

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the io_uring functionality in the way a user registers a buffer ring with IORING_REGISTER_PBUF_RING, mmap() it, and then frees it. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Linux kernel
Ubuntu
linux-image-virtual (Ubuntu package)
linux-image-kvm (Ubuntu package)
linux-image-generic-lpae (Ubuntu package)
linux-image-generic-64k (Ubuntu package)
linux-image-generic (Ubuntu package)
linux-image-6.5.0-21-lowlatency-64k (Ubuntu package)
linux-image-6.5.0-21-lowlatency (Ubuntu package)
linux-image-lowlatency-hwe-22.04 (Ubuntu package)
linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package)
linux-image-lowlatency (Ubuntu package)
linux-image-lowlatency-64k (Ubuntu package)
linux-image-6.5.0-21-generic-64k (Ubuntu package)
linux-image-6.5.0-21-generic (Ubuntu package)
linux-image-generic-64k-hwe-22.04 (Ubuntu package)
linux-image-generic-hwe-22.04 (Ubuntu package)
linux-image-virtual-hwe-22.04 (Ubuntu package)
linux-image-6.5.0-1008-starfive (Ubuntu package)
linux-image-starfive (Ubuntu package)
linux-image-laptop-23.10 (Ubuntu package)
linux-image-6.5.0-1010-laptop (Ubuntu package)
linux-image-raspi (Ubuntu package)
linux-image-raspi-nolpae (Ubuntu package)
linux-image-6.5.0-1011-raspi (Ubuntu package)
linux-image-aws (Ubuntu package)
linux-image-6.5.0-1014-aws (Ubuntu package)
linux-image-6.5.0-1014-gcp (Ubuntu package)
linux-image-gcp (Ubuntu package)
linux-image-6.5.0-1015-azure-fde (Ubuntu package)
linux-image-6.5.0-1015-azure (Ubuntu package)
linux-image-6.5.0-1015-oem (Ubuntu package)
linux-image-azure-fde (Ubuntu package)
linux-image-oem-22.04d (Ubuntu package)
linux-image-azure (Ubuntu package)
linux-image-oracle (Ubuntu package)
linux-image-6.5.0-1016-oracle (Ubuntu package)

Install updates from vendor's website.

linux-image-virtual (Ubuntu package) - update to 6.5.0.21.20
linux-image-kvm (Ubuntu package) - update to 6.5.0.21.20
linux-image-generic-lpae (Ubuntu package) - update to 6.5.0.21.20
linux-image-generic-64k (Ubuntu package) - update to 6.5.0.21.20
linux-image-generic (Ubuntu package) - update to 6.5.0.21.20
linux-image-6.5.0-21-lowlatency-64k (Ubuntu package) - addressed in versions 6.5.0-21.21.1, 6.5.0-21.21.1~22.04.1
linux-image-6.5.0-21-lowlatency (Ubuntu package) - addressed in versions 6.5.0-21.21.1, 6.5.0-21.21.1~22.04.1
linux-image-lowlatency-hwe-22.04 (Ubuntu package) - update to 6.5.0.21.21.1~22.04.7
linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package) - update to 6.5.0.21.21.1~22.04.7
linux-image-lowlatency (Ubuntu package) - update to 6.5.0.21.21.15
linux-image-lowlatency-64k (Ubuntu package) - update to 6.5.0.21.21.15
linux-image-6.5.0-21-generic-64k (Ubuntu package) - update to 6.5.0-21.21~22.04.1
linux-image-6.5.0-21-generic (Ubuntu package) - update to 6.5.0-21.21~22.04.1
linux-image-generic-64k-hwe-22.04 (Ubuntu package) - update to 6.5.0.21.21~22.04.11
linux-image-generic-hwe-22.04 (Ubuntu package) - update to 6.5.0.21.21~22.04.11
linux-image-virtual-hwe-22.04 (Ubuntu package) - update to 6.5.0.21.21~22.04.11
linux-image-6.5.0-1008-starfive (Ubuntu package) - addressed in versions 6.5.0-1008.9, 6.5.0-1008.9~22.04.1
linux-image-starfive (Ubuntu package) - addressed in versions 6.5.0.1008.9~22.04.3, 6.5.0.1008.10
linux-image-laptop-23.10 (Ubuntu package) - update to 6.5.0.1010.13
linux-image-6.5.0-1010-laptop (Ubuntu package) - update to 6.5.0-1010.13
linux-image-raspi (Ubuntu package) - update to 6.5.0.1011.12
linux-image-raspi-nolpae (Ubuntu package) - update to 6.5.0.1011.12
linux-image-6.5.0-1011-raspi (Ubuntu package) - update to 6.5.0-1011.14
linux-image-aws (Ubuntu package) - update to 6.5.0.1014.14
linux-image-6.5.0-1014-aws (Ubuntu package) - update to 6.5.0-1014.14
linux-image-6.5.0-1014-gcp (Ubuntu package) - update to 6.5.0-1014.14
linux-image-gcp (Ubuntu package) - update to 6.5.0.1014.14
linux-image-6.5.0-1015-azure-fde (Ubuntu package) - update to 6.5.0-1015.15
linux-image-6.5.0-1015-azure (Ubuntu package) - update to 6.5.0-1015.15
linux-image-6.5.0-1015-oem (Ubuntu package) - update to 6.5.0-1015.16
linux-image-azure-fde (Ubuntu package) - update to 6.5.0.1015.17
linux-image-oem-22.04d (Ubuntu package) - update to 6.5.0.1015.17
linux-image-azure (Ubuntu package) - update to 6.5.0.1015.17
linux-image-oracle (Ubuntu package) - update to 6.5.0.1016.16
linux-image-6.5.0-1016-oracle (Ubuntu package) - update to 6.5.0-1016.16

• Exploit #11992 - io_uring-n-day (CVE-2024-0582 exploit) (September 26, 2025)
• Exploit #11319 - CVE-2024-0582 (April 18, 2025)
• Exploit #11038 - CVE-2024-0582 (January 3, 2025)
• Exploit #10580 - CVE-2024-0582 (October 11, 2024)
• Exploit #9890 - cve-2024-0582 (May 31, 2024)
• Exploit #9661 - io_uring_LPE-CVE-2024-0582 (April 5, 2024)

• https://access.redhat.com/security/cve/CVE-2024-0582
• https://bugs.chromium.org/p/project-zero/issues/detail?id=2504
• https://bugzilla.redhat.com/show_bug.cgi?id=2254050
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c392cbecd8eca4c53f2bf508731257d9d0a21c2d

• Privilege escalation in Linux kernel io_uring
• Ubuntu update for linux-azure
• Ubuntu update for linux
• Ubuntu update for linux-lowlatency
• Ubuntu update for linux-starfive-6.5