7.1

CVE-2023-53259: VMCI: check context->notify_page after call to get_user_pages_fast() to avoid GPF

Analyzed
AliasesUBUNTU-CVE-2023-53259DEBIAN-CVE-2023-53259
Published 15-09-2025Last modified 11-05-2026

Vulnerability summary

CVE-2023-53259 is a high (CVSS 7.1) Out-of-bounds Read vulnerability in debian debian_linux. EPSS estimates a 0.15% chance of exploitation in the next 30 days, higher than 4.4% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.1, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.1/10
010
High · v3.1 (NVD)
EPSS score
0.15%
0%100%
Low · 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 5 · Related 4
DLA-4327-1SUSE-SU-2025:03615-1SUSE-SU-2025:03628-1SUSE-SU-2025:3716-1SUSE-SU-2025:3761-1

Timeline

  1. 15-09-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: VMCI: check context->notify_page after call to get_user_pages_fast() to avoid GPF The call to get_user_pages_fast() in vmci_host_setup_notify() can return NULL context->notify_page causing a GPF. To avoid GPF check if context->notify_page == NULL and return error if so. general protection fault, probably for non-canonical address 0xe0009d1000000060: 0000 [#1] PREEMPT SMP KASAN NOPTI KASAN: maybe wild-memory-access in range [0x0005088000000300- 0x0005088000000307] CPU: 2 PID: 26180 Comm: repro_34802241 Not tainted 6.1.0-rc4 #1 Hardware name: Red Hat KVM, BIOS 1.15.0-2.module+el8.6.0 04/01/2014 RIP: 0010:vmci_ctx_check_signal_notify+0x91/0xe0 Call Trace: <TASK> vmci_host_unlocked_ioctl+0x362/0x1f40 __x64_sys_ioctl+0x1a1/0x230 do_syscall_64+0x3a/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.15%

Chance of exploitation in the next 30 days

Percentile

4%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.15% 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

Affected systems

Version check

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

Ubuntu121 products
  • linuxAll versions (No fix recorded) | < 5.15.0-75.82
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1038.43
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
Linux2 products
  • linux≥ a1d88436d53a75e950db15834b3d2f8c0c358fdc, < b4239bfb260d1e6837766c41a0b241d7670f1402 | ≥ a1d88436d53a75e950db15834b3d2f8c0c358fdc, < d4198f67e7556b1507f14f60d81a72660e5560e4 | ≥ a1d88436d53a75e950db15834b3d2f8c0c358fdc, < a3c89e8c69a58f62451c0a75b77fcab25979b897 | ≥ a1d88436d53a75e950db15834b3d2f8c0c358fdc, < 055891397f530f9b1b22be38d7eca8b08382941f | ≥ a1d88436d53a75e950db15834b3d2f8c0c358fdc, < 91b8e4f61f8f4594ee65368c8d89e6fdc29d3fb1 | ≥ a1d88436d53a75e950db15834b3d2f8c0c358fdc, < 1a726cb47fd204109c767409fa9ca15a96328f14 | 4.0
  • linux_kernel≥ 4.0, < 5.4.296 | ≥ 5.5, < 5.10.240 | ≥ 5.11, < 5.15.99 | ≥ 5.16, < 6.1.16 | ≥ 6.2, < 6.2.3

3 vendors · 125 products

References

11 links
Show all 11 references