5.5

CVE-2023-53380: md/raid10: fix null-ptr-deref of mreplace in raid10_sync_request

Modified
AliasesUBUNTU-CVE-2023-53380DEBIAN-CVE-2023-53380
Published 18-09-2025Last modified 11-05-2026

Vulnerability summary

CVE-2023-53380 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.15% chance of exploitation in the next 30 days, higher than 4% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (CVE.org)
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 17 · Related 15
RHSA-2024:2394RHSA-2024:3138SUSE-SU-2025:03600-1SUSE-SU-2025:03614-1SUSE-SU-2025:03615-1SUSE-SU-2025:03628-1

Timeline

  1. 18-09-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: md/raid10: fix null-ptr-deref of mreplace in raid10_sync_request There are two check of 'mreplace' in raid10_sync_request(). In the first check, 'need_replace' will be set and 'mreplace' will be used later if no-Faulty 'mreplace' exists, In the second check, 'mreplace' will be set to NULL if it is Faulty, but 'need_replace' will not be changed accordingly. null-ptr-deref occurs if Faulty is set between two check. Fix it by merging two checks into one. And replace 'need_replace' with 'mreplace' because their values are always the same.

CVSS metrics

4 scores · 4 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 0.14% 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.

Ubuntu119 products
  • linux< 5.4.0-166.183 | < 5.15.0-86.96
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.4.0-1113.123 | < 5.15.0-1047.52
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ ee37d7314a32ab6809eacc3389bad0406c69a81f, < 45fa023b3334a7ae6f6c4eb977295804222dfa28 | ≥ ee37d7314a32ab6809eacc3389bad0406c69a81f, < 2990e2ece18dd4cca71b3109c80517ad94adb065 | ≥ ee37d7314a32ab6809eacc3389bad0406c69a81f, < f4368a462b1f9a8ecc2fdb09a28c3d4cad302a4f | ≥ ee37d7314a32ab6809eacc3389bad0406c69a81f, < 222cc459d59857ee28a5366dc225ab42b22f9272 | ≥ ee37d7314a32ab6809eacc3389bad0406c69a81f, < b5015b97adda6a24dd3e713c63e521ecbeff25c6 | ≥ ee37d7314a32ab6809eacc3389bad0406c69a81f, < 144c7fd008e0072b0b565f1157eec618de54ca8a | ≥ ee37d7314a32ab6809eacc3389bad0406c69a81f, < 34817a2441747b48e444cb0e05d84e14bc9443da | 4.20
  • linux_kernel≥ 4.20, < 5.4.251 | ≥ 5.5, < 5.10.188 | ≥ 5.11, < 5.15.121 | ≥ 5.16, < 6.1.39 | ≥ 6.2, < 6.3.13 | ≥ 6.4, < 6.4.4
Debian1 product
  • linux< 6.1.52-1 | < 6.4.4-1

3 vendors · 122 products

References

11 links
Show all 11 references