8.8

CVE-2023-52522: net: fix possible store tearing in neigh_periodic_work()

Modified
AliasesUBUNTU-CVE-2023-52522DEBIAN-CVE-2023-52522
Published 02-03-2024Last modified 05-08-2026

Vulnerability summary

CVE-2023-52522 is a high (CVSS 8.8) vulnerability in linux. EPSS estimates a 0.34% chance of exploitation in the next 30 days, higher than 26.9% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 8.8, adjacent network); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.34%
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 13 · Related 6
RHSA-2024:2394RHSA-2024:6993RHSA-2024:6998RHSA-2024:7000RHSA-2024:7001RHSA-2024:9497

Timeline

  1. 02-03-2024
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: net: fix possible store tearing in neigh_periodic_work() While looking at a related syzbot report involving neigh_periodic_work(), I found that I forgot to add an annotation when deleting an RCU protected item from a list. Readers use rcu_deference(*np), we need to use either rcu_assign_pointer() or WRITE_ONCE() on writer side to prevent store tearing. I use rcu_assign_pointer() to have lockdep support, this was the choice made in neigh_flush_dev().

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.34%

Chance of exploitation in the next 30 days

Percentile

27%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.34% 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

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: adjacent network, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu114 products
  • linuxAll versions (No fix recorded) | < 4.4.0-266.300 | < 4.15.0-235.247 | < 5.4.0-171.189 | < 5.15.0-94.104
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 4.4.0-1141.147 | < 4.4.0-1179.194 | < 4.15.0-1178.191 | < 5.4.0-1118.128 | < 5.15.0-1053.58
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 767e97e1e0db0d0f3152cd2f3bd3403596aedbad, < 95eabb075a5902f4c0834ab1fb12dc35730c05af | ≥ 767e97e1e0db0d0f3152cd2f3bd3403596aedbad, < 2ea52a2fb8e87067e26bbab4efb8872639240eb0 | ≥ 767e97e1e0db0d0f3152cd2f3bd3403596aedbad, < 147d89ee41434b97043c2dcb17a97dc151859baa | ≥ 767e97e1e0db0d0f3152cd2f3bd3403596aedbad, < f82aac8162871e87027692b36af335a2375d4580 | ≥ 767e97e1e0db0d0f3152cd2f3bd3403596aedbad, < a75152d233370362eebedb2643592e7c883cc9fc | ≥ 767e97e1e0db0d0f3152cd2f3bd3403596aedbad, < 25563b581ba3a1f263a00e8c9a97f5e7363be6fd | 2.6.37
  • linux_kernel≥ 2.6.37, < 5.4.258 | ≥ 5.5, < 5.10.198 | ≥ 5.11, < 5.15.135 | ≥ 5.16, < 6.1.57 | ≥ 6.2, < 6.5.7 | 6.6:rc1 | 6.6:rc2 | 6.6:rc3 | 6.6:rc4
Debian1 product
  • linux< 6.1.64-1 | < 6.5.8-1

3 vendors · 117 products

References

16 links
Show all 16 references