CVE-2023-54024: linux

CVSS: UnknownDeferred
AliasesUBUNTU-CVE-2023-54024DEBIAN-CVE-2023-54024
Published 24-12-2025Last modified 23-05-2026
Open JSON

Vulnerability summary

CVE-2023-54024 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 8.3% of scored vulnerabilities.

Overall risk
0/100
0100
Minimal · default modelHow is this calculated?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.19%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 7 · Related 6
RHSA-2023:6583SUSE-SU-2026:0263-1SUSE-SU-2026:0317-1SUSE-SU-2026:0350-1SUSE-SU-2026:0369-1SUSE-SU-2026:0411-1

Timeline

  1. 24-12-2025
    PublishedVulnerability first disclosed.
  2. 23-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: Destroy target device if coalesced MMIO unregistration fails Destroy and free the target coalesced MMIO device if unregistering said device fails. As clearly noted in the code, kvm_io_bus_unregister_dev() does not destroy the target device. BUG: memory leak unreferenced object 0xffff888112a54880 (size 64): comm "syz-executor.2", pid 5258, jiffies 4297861402 (age 14.129s) hex dump (first 32 bytes): 38 c7 67 15 00 c9 ff ff 38 c7 67 15 00 c9 ff ff 8.g.....8.g..... e0 c7 e1 83 ff ff ff ff 00 30 67 15 00 c9 ff ff .........0g..... backtrace: [<0000000006995a8a>] kmalloc include/linux/slab.h:556 [inline] [<0000000006995a8a>] kzalloc include/linux/slab.h:690 [inline] [<0000000006995a8a>] kvm_vm_ioctl_register_coalesced_mmio+0x8e/0x3d0 arch/x86/kvm/../../../virt/kvm/coalesced_mmio.c:150 [<00000000022550c2>] kvm_vm_ioctl+0x47d/0x1600 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3323 [<000000008a75102f>] vfs_ioctl fs/ioctl.c:46 [inline] [<000000008a75102f>] file_ioctl fs/ioctl.c:509 [inline] [<000000008a75102f>] do_vfs_ioctl+0xbab/0x1160 fs/ioctl.c:696 [<0000000080e3f669>] ksys_ioctl+0x76/0xa0 fs/ioctl.c:713 [<0000000059ef4888>] __do_sys_ioctl fs/ioctl.c:720 [inline] [<0000000059ef4888>] __se_sys_ioctl fs/ioctl.c:718 [inline] [<0000000059ef4888>] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:718 [<000000006444fa05>] do_syscall_64+0x9f/0x4e0 arch/x86/entry/common.c:290 [<000000009a4ed50b>] entry_SYSCALL_64_after_hwframe+0x49/0xbe BUG: leak checking failed

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.19%

Chance of exploitation in the next 30 days

Percentile

8%

Versus all other CVEs

30-day change

0.00 pp

From 0.19% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.19%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu118 products
  • linux< 5.4.0-152.169 | < 5.15.0-75.82
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.4.0-1104.112 | < 5.15.0-1038.43
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.20-1
Linux1 product
  • linux≥ 7d1bc32d6477ff96a32695ea4be8144e4513ab2d, < 10c2a20d73e99463e69b7e92706791656adc16d7 | ≥ 2a20592baff59c5351c5200ec667e1a2aa22af85, < 76a9886e1b61ce5592df5ae78a19ed30399ae189 | ≥ 5d3c4c79384af06e3c8e25b7770b6247496b4417, < 999439fd5da5a76253e2f2c37b94204f47d75491 | ≥ 5d3c4c79384af06e3c8e25b7770b6247496b4417, < ccf6a7fb1aedb1472e1241ee55e4d26b68f8d066 | ≥ 5d3c4c79384af06e3c8e25b7770b6247496b4417, < fb436dd6914325075f07d19851ab277b7a693ae7 | ≥ 5d3c4c79384af06e3c8e25b7770b6247496b4417, < b1cb1fac22abf102ffeb29dd3eeca208a3869d54 | 168e82f640ed1891a700bdb43e37da354b2ab63c | 50cbad42bfea8c052b7ca590bd4126cdc898713c | ≥ 5.4.119, < 5.4.235 | ≥ 5.10.37, < 5.10.173 | ≥ 5.11.21, < 5.12 | ≥ 5.12.4, < 5.13 | 5.13

3 vendors · 120 products

References

9 links