7.5

CVE-2024-35882: SUNRPC: Fix a slow server-side memory leak with RPC-over-TCP

Modified
AliasesUBUNTU-CVE-2024-35882DEBIAN-CVE-2024-35882
Published 19-05-2024Last modified 05-08-2026

Vulnerability summary

CVE-2024-35882 is a high (CVSS 7.5) vulnerability in linux. EPSS estimates a 0.60% chance of exploitation in the next 30 days, higher than 48.8% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 1% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.60%
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 4 · Related 4
USN-6893-1USN-6893-2USN-6893-3USN-6918-1

Timeline

  1. 19-05-2024
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Fix a slow server-side memory leak with RPC-over-TCP Jan Schunk reports that his small NFS servers suffer from memory exhaustion after just a few days. A bisect shows that commit e18e157bb5c8 ("SUNRPC: Send RPC message on TCP with a single sock_sendmsg() call") is the first bad commit. That commit assumed that sock_sendmsg() releases all the pages in the underlying bio_vec array, but the reality is that it doesn't. svc_xprt_release() releases the rqst's response pages, but the record marker page fragment isn't one of those, so it is never released. This is a narrow fix that can be applied to stable kernels. A more extensive fix is in the works.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.60%

Chance of exploitation in the next 30 days

Percentile

49%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.60% 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: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu78 products
  • linux< 6.8.0-38.38
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 6.8.0-1011.12
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ e18e157bb5c8c1cd8a9ba25acfdcf4f3035836f4, < 1ba1291172f935e6b6fe703161a948f3347400b8 | ≥ e18e157bb5c8c1cd8a9ba25acfdcf4f3035836f4, < a2ebedf7bcd17a1194a0a18122c885eb578ee882 | ≥ e18e157bb5c8c1cd8a9ba25acfdcf4f3035836f4, < 05258a0a69b3c5d2c003f818702c0a52b6fea861 | 6.6
  • linux_kernel≥ 6.6, < 6.6.26 | ≥ 6.7, < 6.8.5 | 6.9:rc1 | 6.9:rc2
Debian1 product
  • linux< 6.8.9-1

3 vendors · 81 products

References

11 links
Show all 11 references