9.1

CVE-2022-48829: NFSD: Fix NFSv3 SETATTR/CREATE's handling of large file sizes

Modified
AliasesUBUNTU-CVE-2022-48829DEBIAN-CVE-2022-48829
Published 16-07-2024Last modified 14-10-2026

Vulnerability summary

CVE-2022-48829 is a critical (CVSS 9.1) vulnerability in linux. EPSS estimates a 0.65% chance of exploitation in the next 30 days, higher than 51.3% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 9.1 (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
9.1/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.65%
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 12 · Related 8
RHSA-2024:5266RHSA-2024:5281RHSA-2024:5282RHSA-2024:6992SUSE-SU-2024:2892-1SUSE-SU-2024:2894-1

Timeline

  1. 16-07-2024
    PublishedVulnerability first disclosed.
  2. 14-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: NFSD: Fix NFSv3 SETATTR/CREATE's handling of large file sizes iattr::ia_size is a loff_t, so these NFSv3 procedures must be careful to deal with incoming client size values that are larger than s64_max without corrupting the value. Silently capping the value results in storing a different value than the client passed in which is unexpected behavior, so remove the min_t() check in decode_sattr3(). Note that RFC 1813 permits only the WRITE procedure to return NFS3ERR_FBIG. We believe that NFSv3 reference implementations also return NFS3ERR_FBIG when ia_size is too large.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.65%

Chance of exploitation in the next 30 days

Percentile

51%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.65% 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: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu95 products
  • linuxAll versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 72c14aed6838b5d90b4dd926b6a339b34bb02e08 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < a231ae6bb50e7c0a9e9efd7b0d10687f1d71b3a3 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 37f2d2cd8eadddbbd9c7bda327a9393399b2f89b | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < aa9051ddb4b378bd22e72a67bc77b9fc1482c5f0 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < a648fdeb7c0e17177a2280344d015dba3fbe3314 | 2.6.12
  • linux_kernel< 5.4.295 | ≥ 5.5, < 5.10.220 | ≥ 5.11, < 5.15.24 | ≥ 5.16, < 5.16.10 | 5.17:rc1 | 5.17:rc2 | 5.17:rc3
Debian1 product
  • linux< 5.16.10-1

3 vendors · 98 products

References

11 links
Show all 11 references