🛡️ CVE-2024-56584 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: io_uring/tctx: work around xa_store() allocation error issue syzbot triggered the following WARN_ON: WARNING: CPU: 0 PID: 16 at io_uring/tctx.c:51 __io_uring_free+0xfa/0x140 io_uring/tctx.c:51 which is the WARN_ON_ONCE(!xa_empty(&tctx->xa)); sanity check in __io_uring_free() when a io_uring_task is going through its final put. The syzbot test case includes injecting memory allocation failures, and it very much looks like xa_store() can fail one of its memory allocations and end up with ->head being non-NULL even though no entries exist in the xarray. Until this issue gets sorted out, work around it by attempting to iterate entries in our xarray, and WARN_ON_ONCE() if one is found.

Distribution advisory

This page covers CVE-2024-56584 as tracked by Ubuntu, for the package linux. The fix is available in version 6.8.0-58.60; 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-2024-56584 is recorded against 136 packages.

linux (fixed in 6.8.0-58.60)
linux-allwinner-5.19
linux-aws (fixed in 6.8.0-1027.29)
linux-aws-5.0
linux-aws-5.11
linux-aws-5.13
linux-aws-5.15 (fixed in 5.15.0-1112.119~20.04.1)
linux-aws-5.19
linux-aws-5.3
linux-aws-5.4
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 5.15.0-1112.119+fips1)
linux-aws-hwe
linux-azure (fixed in 6.8.0-1027.32)
linux-azure-4.15
linux-azure-5.11
linux-azure-5.13
linux-azure-5.15 (fixed in 5.15.0-1117.126~20.04.1)
linux-azure-5.19
linux-azure-5.3
linux-azure-5.4

Show the remaining 112 packages

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
linux-azure-6.8 (fixed in 6.8.0-1027.32~22.04.1)
linux-azure-edge
linux-azure-fde (fixed in 5.15.0-1117.126)
linux-azure-fde-5.15 (fixed in 5.15.0-1117.126~20.04.2)
linux-azure-fde-5.19
linux-azure-fde-6.2
linux-azure-fips (fixed in 5.15.0-1117.126+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 6.8.0-1028.30)
linux-gcp-4.15
linux-gcp-5.11
linux-gcp-5.13
linux-gcp-5.15
linux-gcp-5.19
linux-gcp-5.3
linux-gcp-5.4
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 6.8.0-1028.30~22.04.1)
linux-gcp-fips (fixed in 5.15.0-1112.122+fips1)
linux-gke (fixed in 6.8.0-1023.27)
linux-gke-4.15
linux-gke-5.15
linux-gke-5.4
linux-gkeop (fixed in 6.8.0-1010.12)
linux-gkeop-5.15
linux-gkeop-5.4
linux-hwe
linux-hwe-5.11
linux-hwe-5.13
linux-hwe-5.15 (fixed in 5.15.0-186.196~20.04.1)
linux-hwe-5.19
linux-hwe-5.4
linux-hwe-5.8
linux-hwe-6.11 (fixed in 6.11.0-21.21~24.04.1)
linux-hwe-6.2
linux-hwe-6.5
linux-hwe-6.8 (fixed in 6.8.0-58.60~22.04.1)
linux-hwe-edge
linux-ibm (fixed in 6.8.0-1024.24)
linux-ibm-5.15 (fixed in 5.15.0-1106.110~20.04.1)
linux-ibm-5.4
linux-ibm-6.8 (fixed in 6.8.0-1024.24~22.04.1)
linux-intel-5.13
linux-intel-iot-realtime (fixed in 5.15.0-1104.106)
linux-intel-iotg (fixed in 5.15.0-1107.113)
linux-intel-iotg-5.15 (fixed in 5.15.0-1107.113~20.04.1)
linux-iot
linux-kvm (fixed in 5.15.0-1104.109)
linux-lowlatency (fixed in 6.8.0-58.60.1)
linux-lowlatency-hwe-5.15 (fixed in 5.15.0-184.194~20.04.1)
linux-lowlatency-hwe-5.19
linux-lowlatency-hwe-6.2
linux-lowlatency-hwe-6.5
linux-lowlatency-hwe-6.8 (fixed in 6.8.0-58.60.1~22.04.1)
linux-lts-xenial
linux-nvidia (fixed in 6.8.0-1026.29)
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 6.8.0-1026.29~22.04.1)
linux-nvidia-lowlatency (fixed in 6.8.0-1026.29.1)
linux-nvidia-tegra (fixed in 6.8.0-1008.8)
linux-nvidia-tegra-5.15 (fixed in 5.15.0-1064.66~20.04.1)
linux-nvidia-tegra-igx (fixed in 5.15.0-1053.53)
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 6.11.0-1017.17)
linux-oem-6.5
linux-oem-6.8 (fixed in 6.8.0-1026.26)
linux-oracle (fixed in 6.8.0-1024.25)
linux-oracle-5.0
linux-oracle-5.11
linux-oracle-5.13
linux-oracle-5.15 (fixed in 5.15.0-1109.115~20.04.1)
linux-oracle-5.3
linux-oracle-5.4
linux-oracle-5.8
linux-oracle-6.5
linux-oracle-6.8 (fixed in 6.8.0-1024.25~22.04.1)
linux-raspi (fixed in 6.8.0-1028.32)
linux-raspi-5.4
linux-raspi-realtime (fixed in 6.8.0-2023.24)
linux-raspi2
linux-realtime (fixed in 6.8.1-1020.21)
linux-realtime-6.8 (fixed in 6.8.1-1020.21~22.04.1)
linux-riscv (fixed in 6.8.0-58.60.1)
linux-riscv-5.11
linux-riscv-5.15 (fixed in 5.15.0-1106.110~20.04.1)
linux-riscv-5.19
linux-riscv-5.8
linux-riscv-6.5
linux-riscv-6.8 (fixed in 6.8.0-58.60.1~22.04.1)
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 5.15.0-1075.79)

Timeline and source

Published on 27 December 2024 and last revised on 19 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

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:

DEBIAN-CVE-2022-4994 (published 30 Jul 2026)
CVE-2026-35233 (4.4 Medium, published 1 May 2026)
CVE-2026-21996 (3.3 Low, published 1 May 2026)
CVE-2026-21991 (5.5 Medium, published 16 Mar 2026)
CGA-mcwh-q4vm-9f29 (published 29 Jan 2026)
CGA-w6xv-3fg4-grm5 (published 29 Jan 2026)
CGA-8vhr-fq3f-qx7q (published 7 Jan 2026)
CGA-p49v-mx3v-9ff2 (published 7 Jan 2026)

CVE-2024-56584 on other distributions

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

BellSoft — BELL-CVE-2024-56584 Base record — CVE-2024-56584 Debian — DEBIAN-CVE-2024-56584 Debian 11 (Root.io) — ROOT-OS-DEBIAN-11-CVE-2024-56584 Ubuntu 22.04 (Root.io) — ROOT-OS-UBUNTU-2204-CVE-2024-56584

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 2024-12-27

Updated 2026-08-20

Modified 2026-08-19

Fix URL N/A

Affected Packages

Software	From version	Fixed in
linux	—	6.8.0-58.60
linux-allwinner-5.19	—	—
linux-aws	—	6.8.0-1027.29
linux-aws-5.0	—	—
linux-aws-5.11	—	—
linux-aws-5.13	—	—
linux-aws-5.15	—	5.15.0-1112.119~20.04.1
linux-aws-5.19	—	—
linux-aws-5.3	—	—
linux-aws-5.4	—	—
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	—	5.15.0-1112.119+fips1
linux-aws-hwe	—	—
linux-azure	—	6.8.0-1027.32
linux-azure-4.15	—	—
linux-azure-5.11	—	—
linux-azure-5.13	—	—
linux-azure-5.15	—	5.15.0-1117.126~20.04.1
linux-azure-5.19	—	—
linux-azure-5.3	—	—
linux-azure-5.4	—	—
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	—	6.8.0-1027.32~22.04.1
linux-azure-edge	—	—
linux-azure-fde	—	5.15.0-1117.126
linux-azure-fde-5.15	—	5.15.0-1117.126~20.04.2
linux-azure-fde-5.19	—	—
linux-azure-fde-6.2	—	—
linux-azure-fips	—	5.15.0-1117.126+fips1
linux-azure-nvidia	—	6.8.0-1014.15
linux-bluefield	—	—
linux-fips	—	6.8.0-78.78+fips1
linux-gcp	—	6.8.0-1028.30
linux-gcp-4.15	—	—
linux-gcp-5.11	—	—
linux-gcp-5.13	—	—
linux-gcp-5.15	—	—
linux-gcp-5.19	—	—
linux-gcp-5.3	—	—
linux-gcp-5.4	—	—
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	—	6.8.0-1028.30~22.04.1
linux-gcp-fips	—	5.15.0-1112.122+fips1
linux-gke	—	6.8.0-1023.27
linux-gke-4.15	—	—
linux-gke-5.15	—	—
linux-gke-5.4	—	—
linux-gkeop	—	6.8.0-1010.12
linux-gkeop-5.15	—	—
linux-gkeop-5.4	—	—
linux-hwe	—	—
linux-hwe-5.11	—	—
linux-hwe-5.13	—	—
linux-hwe-5.15	—	5.15.0-186.196~20.04.1
linux-hwe-5.19	—	—
linux-hwe-5.4	—	—
linux-hwe-5.8	—	—
linux-hwe-6.11	—	6.11.0-21.21~24.04.1
linux-hwe-6.2	—	—
linux-hwe-6.5	—	—
linux-hwe-6.8	—	6.8.0-58.60~22.04.1
linux-hwe-edge	—	—
linux-ibm	—	6.8.0-1024.24
linux-ibm-5.15	—	5.15.0-1106.110~20.04.1
linux-ibm-5.4	—	—
linux-ibm-6.8	—	6.8.0-1024.24~22.04.1
linux-intel-5.13	—	—
linux-intel-iot-realtime	—	5.15.0-1104.106
linux-intel-iotg	—	5.15.0-1107.113
linux-intel-iotg-5.15	—	5.15.0-1107.113~20.04.1
linux-iot	—	—
linux-kvm	—	5.15.0-1104.109
linux-lowlatency	—	6.8.0-58.60.1
linux-lowlatency-hwe-5.15	—	5.15.0-184.194~20.04.1
linux-lowlatency-hwe-5.19	—	—
linux-lowlatency-hwe-6.2	—	—
linux-lowlatency-hwe-6.5	—	—
linux-lowlatency-hwe-6.8	—	6.8.0-58.60.1~22.04.1
linux-lts-xenial	—	—
linux-nvidia	—	6.8.0-1026.29
linux-nvidia-6.11	—	6.11.0-1007.7
linux-nvidia-6.2	—	—
linux-nvidia-6.5	—	—
linux-nvidia-6.8	—	6.8.0-1026.29~22.04.1
linux-nvidia-lowlatency	—	6.8.0-1026.29.1
linux-nvidia-tegra	—	6.8.0-1008.8
linux-nvidia-tegra-5.15	—	5.15.0-1064.66~20.04.1
linux-nvidia-tegra-igx	—	5.15.0-1053.53
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	—	6.11.0-1017.17
linux-oem-6.5	—	—
linux-oem-6.8	—	6.8.0-1026.26
linux-oracle	—	6.8.0-1024.25
linux-oracle-5.0	—	—
linux-oracle-5.11	—	—
linux-oracle-5.13	—	—
linux-oracle-5.15	—	5.15.0-1109.115~20.04.1
linux-oracle-5.3	—	—
linux-oracle-5.4	—	—
linux-oracle-5.8	—	—
linux-oracle-6.5	—	—
linux-oracle-6.8	—	6.8.0-1024.25~22.04.1
linux-raspi	—	6.8.0-1028.32
linux-raspi-5.4	—	—
linux-raspi-realtime	—	6.8.0-2023.24
linux-raspi2	—	—
linux-realtime	—	6.8.1-1020.21
linux-realtime-6.8	—	6.8.1-1020.21~22.04.1
linux-riscv	—	6.8.0-58.60.1
linux-riscv-5.11	—	—
linux-riscv-5.15	—	5.15.0-1106.110~20.04.1
linux-riscv-5.19	—	—
linux-riscv-5.8	—	—
linux-riscv-6.5	—	—
linux-riscv-6.8	—	6.8.0-58.60.1~22.04.1
linux-starfive-5.19	—	—
linux-starfive-6.2	—	—
linux-starfive-6.5	—	—
linux-xilinx	—	6.8.0-1017.18
linux-xilinx-zynqmp	—	5.15.0-1075.79

References

REPORT https://ubuntu.com/security/CVE-2024-56584

REPORT https://www.cve.org/CVERecord?id=CVE-2024-56584

REPORT https://git.kernel.org/linus/7eb75ce7527129d7f1fee6951566af409a37a1c4

REPORT https://git.kernel.org/stable/c/42882b583095dcf747da6e3af1daeff40e27033e

REPORT https://git.kernel.org/stable/c/7eb75ce7527129d7f1fee6951566af409a37a1c4

REPORT https://git.kernel.org/stable/c/94ad56f61b873ffeebcc620d451eacfbdf9d40f0

REPORT https://git.kernel.org/stable/c/d5b2ddf1f90c7248eff9630b95895c8950f2f36d

ADVISORY https://ubuntu.com/security/notices/USN-7379-1

ADVISORY https://ubuntu.com/security/notices/USN-7380-1

ADVISORY https://ubuntu.com/security/notices/USN-7381-1

ADVISORY https://ubuntu.com/security/notices/USN-7382-1

ADVISORY https://ubuntu.com/security/notices/USN-7379-2

ADVISORY https://ubuntu.com/security/notices/USN-7449-1

ADVISORY https://ubuntu.com/security/notices/USN-7450-1

ADVISORY https://ubuntu.com/security/notices/USN-7451-1

ADVISORY https://ubuntu.com/security/notices/USN-7452-1

ADVISORY https://ubuntu.com/security/notices/USN-7453-1

ADVISORY https://ubuntu.com/security/notices/USN-7449-2

ADVISORY https://ubuntu.com/security/notices/USN-7468-1

ADVISORY https://ubuntu.com/security/notices/USN-7523-1

ADVISORY https://ubuntu.com/security/notices/USN-7524-1

ADVISORY https://ubuntu.com/security/notices/USN-8575-1

ADVISORY https://ubuntu.com/security/notices/USN-8576-1

ADVISORY https://ubuntu.com/security/notices/USN-8575-2

ADVISORY https://ubuntu.com/security/notices/USN-8576-2

ADVISORY https://ubuntu.com/security/notices/USN-8597-1

ADVISORY https://ubuntu.com/security/notices/USN-8575-3

ADVISORY https://ubuntu.com/security/notices/USN-8610-1

ADVISORY https://ubuntu.com/security/notices/USN-8620-1

ADVISORY https://ubuntu.com/security/notices/USN-8620-2

ADVISORY https://ubuntu.com/security/notices/USN-8620-3

ADVISORY https://ubuntu.com/security/notices/USN-8620-4

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🛡️ CVE-2024-56584 on Ubuntu — linux

Description

Distribution advisory

How this vulnerability can be exploited

CVSS metrics in full

Affected software

Timeline and source

References

Other advisories for this package

CVE-2024-56584 on other distributions

Track new vulnerabilities in linux

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