7.3

CVE-2024-39472: xfs: fix log recovery buffer allocation for the legacy h_size fixup

Modified
AliasesUBUNTU-CVE-2024-39472DEBIAN-CVE-2024-39472
Published 05-07-2024Last modified 05-08-2026

Vulnerability summary

CVE-2024-39472 is a high (CVSS 7.3) vulnerability in linux. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 16.6% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.3, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.3/10
010
High · v3.1 (CVE.org)
EPSS score
0.25%
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 24 · Related 18
DLA-4008-1RHSA-2024:5101RHSA-2024:5102RHSA-2024:8157RHSA-2024:8158RHSA-2024:8617

Timeline

  1. 05-07-2024
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: xfs: fix log recovery buffer allocation for the legacy h_size fixup Commit a70f9fe52daa ("xfs: detect and handle invalid iclog size set by mkfs") added a fixup for incorrect h_size values used for the initial umount record in old xfsprogs versions. Later commit 0c771b99d6c9 ("xfs: clean up calculation of LR header blocks") cleaned up the log reover buffer calculation, but stoped using the fixed up h_size value to size the log recovery buffer, which can lead to an out of bounds access when the incorrect h_size does not come from the old mkfs tool, but a fuzzer. Fix this by open coding xlog_logrec_hblks and taking the fixed h_size into account for this calculation.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.25%

Chance of exploitation in the next 30 days

Percentile

17%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.25% 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, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu117 products
  • linux< 5.15.0-125.135 | < 6.8.0-50.51
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1072.78 | < 6.8.0-1020.22
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 0c771b99d6c9a0552fea5cc43669b726dad8f659, < f754591b17d0ee91c2b45fe9509d0cdc420527cb | ≥ 0c771b99d6c9a0552fea5cc43669b726dad8f659, < 57835c0e7152e36b03875dd6c56dfeed685c1b1f | ≥ 0c771b99d6c9a0552fea5cc43669b726dad8f659, < c2389c074973aa94e34992e7f66dac0de37595b5 | ≥ 0c771b99d6c9a0552fea5cc43669b726dad8f659, < 45cf976008ddef4a9c9a30310c9b4fb2a9a6602a | 5.10
  • linux_kernel≤ 6.9.3
Debian1 product
  • linux< 6.1.106-1 | < 6.10.3-1

3 vendors · 120 products

References

20 links
Show all 20 references