CVE-2024-0582: Kernel: io_uring: page use-after-free vulnerability via buffer ring mmap

Modified

AliasesUBUNTU-CVE-2024-0582DEBIAN-CVE-2024-0582

Published 16-01-2024Last modified 20-11-2025

Vulnerability summary

CVE-2024-0582 is a high (CVSS 7.8) Use After Free vulnerability in linux linux_kernel. EPSS estimates a 12.84% chance of exploitation in the next 30 days, higher than 96.2% of scored vulnerabilities.

Priority

Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?

CVSS score

7.8/10

010

High · v3.1 (CVE.org)

EPSS score

12.84%

0%100%

Medium · 0.00 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 3 · Related 4

USN-6651-1 USN-6651-2 USN-6651-3 USN-6652-1

Timeline

16-01-2024
PublishedVulnerability first disclosed.
20-11-2025
Last modifiedVulnerability information updated.

Description

A memory leak flaw was found in the Linux kernel’s io_uring functionality in how a user registers a buffer ring with IORING_REGISTER_PBUF_RING, mmap() it, and then frees it. This flaw allows a local user to crash or potentially escalate their privileges on the system.

CVSS metrics

4 scores · 4 sources · 1 version

v3.17.8

EPSS trend

Probability

12.84%

Chance of exploitation in the next 30 days

Percentile

96%

Versus all other CVEs

30-day change

No change 0.00 pp

From 12.84% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs

CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

CWE-416Use After FreeThe product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu74 products

linux-allwinner-5.19All versions (No fix recorded)
linux-aws-5.0All versions (No fix recorded)
linux-aws-5.11All versions (No fix recorded)
linux-aws-5.13All versions (No fix recorded)
linux-aws-5.19All versions (No fix recorded)

linux-aws-5.3All versions (No fix recorded)
linux-aws-5.8All versions (No fix recorded)
linux-aws-6.2All versions (No fix recorded)
linux-aws-6.5All versions (No fix recorded)
linux-azureAll versions (No fix recorded)
linux-azure-5.11All versions (No fix recorded)
linux-azure-5.13All versions (No fix recorded)
linux-azure-5.19All versions (No fix recorded)
linux-azure-5.3All versions (No fix recorded)
linux-azure-5.8All versions (No fix recorded)
linux-azure-6.2All versions (No fix recorded)
linux-azure-6.5All versions (No fix recorded)
linux-azure-edgeAll versions (No fix recorded)
linux-azure-fdeAll versions (No fix recorded)
linux-azure-fde-5.19All versions (No fix recorded)
linux-azure-fde-6.2All versions (No fix recorded)
linux-gcpAll versions (No fix recorded)
linux-gcp-5.11All versions (No fix recorded)
linux-gcp-5.13All versions (No fix recorded)
linux-gcp-5.19All versions (No fix recorded)
linux-gcp-5.3All versions (No fix recorded)
linux-gcp-5.8All versions (No fix recorded)
linux-gcp-6.2All versions (No fix recorded)
linux-gcp-6.5All versions (No fix recorded)
linux-gkeAll versions (No fix recorded)
linux-gke-4.15All versions (No fix recorded)
linux-gke-5.15All versions (No fix recorded)
linux-gke-5.4All versions (No fix recorded)
linux-gkeop-5.4All versions (No fix recorded)
linux-hweAll versions (No fix recorded)
linux-hwe-5.11All versions (No fix recorded)
linux-hwe-5.13All versions (No fix recorded)
linux-hwe-5.19All versions (No fix recorded)
linux-hwe-5.8All versions (No fix recorded)
linux-hwe-6.2All versions (No fix recorded)
linux-hwe-6.5< 6.5.0-21.21~22.04.1
linux-hwe-edgeAll versions (No fix recorded)
linux-intel-5.13All versions (No fix recorded)
linux-intel-iot-realtimeAll versions (No fix recorded)
linux-lowlatency-hwe-5.19All versions (No fix recorded)
linux-lowlatency-hwe-6.2All versions (No fix recorded)
linux-lowlatency-hwe-6.5All versions (No fix recorded)
linux-nvidia-6.2All versions (No fix recorded)
linux-nvidia-6.5< 6.5.0-1014.14
linux-oemAll versions (No fix recorded)
linux-oem-5.10All versions (No fix recorded)
linux-oem-5.13All versions (No fix recorded)
linux-oem-5.14All versions (No fix recorded)
linux-oem-5.17All versions (No fix recorded)
linux-oem-5.6All versions (No fix recorded)
linux-oem-6.0All versions (No fix recorded)
linux-oem-6.5< 6.5.0-1015.16
linux-oracle-5.0All versions (No fix recorded)
linux-oracle-5.11All versions (No fix recorded)
linux-oracle-5.13All versions (No fix recorded)
linux-oracle-5.3All versions (No fix recorded)
linux-oracle-5.8All versions (No fix recorded)
linux-oracle-6.5All versions (No fix recorded)
linux-raspi-realtimeAll versions (No fix recorded)
linux-raspi2All versions (No fix recorded)
linux-realtimeAll versions (No fix recorded)
linux-riscvAll versions (No fix recorded)
linux-riscv-5.11All versions (No fix recorded)
linux-riscv-5.19All versions (No fix recorded)
linux-riscv-5.8All versions (No fix recorded)
linux-riscv-6.5< 6.5.0-21.21.1~22.04.1
linux-starfive-5.19All versions (No fix recorded)
linux-starfive-6.2All versions (No fix recorded)
linux-starfive-6.5< 6.5.0-1008.9~22.04.1

Show all 74

Debian1 product

linux< 6.6.8-1

Linux1 product

linux_kernel≥ 6.4, < 6.6.5 | 6.7:rc1 | 6.7:rc2 | 6.7:rc3

3 vendors · 76 products

References

13 links

access.redhat.com/security/cve/CVE-2024-0582VDB EntryX Refsource REDHATREPORTThird Party Advisory
bugs.chromium.org/p/project-zero/issues/detail?id=2504REPORTIssue TrackingMailing List
bugzilla.redhat.com/show_bug.cgi?id=2254050Issue TrackingX Refsource REDHATPatchThird Party Advisory
git.kernel.org/pub/…REPORTMailing ListPatch
www.openwall.com/lists/oss-security/2024/04/24/3X Transferred
ubuntu.com/security/CVE-2024-0582REPORT
git.kernel.org/linus/c392cbecd8eca4c53f2bf508731257d9d0a21c2dREPORT
ubuntu.com/security/notices/USN-6651-1Advisory
ubuntu.com/security/notices/USN-6652-1Advisory
ubuntu.com/security/notices/USN-6651-2Advisory

Show all 13 references

ubuntu.com/security/notices/USN-6651-3Advisory
www.cve.org/CVERecord?id=CVE-2024-0582REPORT
security-tracker.debian.org/tracker/CVE-2024-0582Advisory