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TI-2022-24352 Aliases CVE-2022-48828GHSA-j7gw-xcvp-f76q

NFSD: Fix ia_size underflow

Priority MEDIUM 40CWE-191Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · High
Fix status
Partial Red Hat: 9 fixed, 3 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.

Summary

In the Linux kernel, the following vulnerability has been resolved: NFSD: Fix ia_size underflow iattr::ia_size is a loff_t, which is a signed 64-bit type. NFSv3 and NFSv4 both define file size as an unsigned 64-bit type. Thus there is a range of valid file size values an NFS client can send that is already larger than Linux can handle. Currently decode_fattr4() dumps a full u64 value into ia_size. If that value happens to be larger than S64_MAX, then ia_size underflows. I'm about to fix up the NFSv3 behavior as well, so let's catch the underflow in the common code path: nfsd_setattr().

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00631 50th percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.4.295, 5.10.220, 5.15.24 +2Red Hat: 4 advisoriesRed Hat: 9 fixed, 3 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux2.6.12 and later5.4.295, 5.10.220, 5.15.24, 5.16.10, 5.17Patch availableCNA
  • Linux VendorLinux Affected 2.6.12 and later Fixed in 5.4.295, 5.10.220, 5.15.24, 5.16.10, 5.17 Patch available CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*before 5.4.295; 5.5 to before 5.10.220; 5.11 to before 5.15.24; 5.16 to before 5.16.10VulnerableLinux
cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:*5.17 rc1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:5.17:rc2:*:*:*:*:*:*5.17 rc2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:5.17:rc3:*:*:*:*:*:*5.17 rc3VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 5.4.295; 5.5 to before 5.10.220; 5.11 to before 5.15.24; 5.16 to before 5.16.10 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:* Versions 5.17 rc1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:5.17:rc2:*:*:*:*:*:* Versions 5.17 rc2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:5.17:rc3:*:*:*:*:*:* Versions 5.17 rc3 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 5.4.295, 5.10.220, 5.15.24, 5.16.10, 5.17

Red Hat 4 advisories

  • RHSA-2024:6992 Released 2024-09-24 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) bpftool-4.18.0-193.141.1.el8_2, kernel-4.18.0-193.141.1.el8_2, kernel-abi-whitelists-4.18.0-193.141.1.el8_2 +14
  • RHSA-2024:5281 Released 2024-08-13 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v.8.6) bpftool-4.18.0-372.118.1.el8_6, kernel-4.18.0-372.118.1.el8_6, kernel-abi-stablelists-4.18.0-372.118.1.el8_6 +14
    • Red Hat Enterprise Linux BaseOS E4S (v.8.6) bpftool-4.18.0-372.118.1.el8_6, kernel-4.18.0-372.118.1.el8_6, kernel-abi-stablelists-4.18.0-372.118.1.el8_6 +19
    • Red Hat Enterprise Linux BaseOS TUS (v.8.6) bpftool-4.18.0-372.118.1.el8_6, kernel-4.18.0-372.118.1.el8_6, kernel-abi-stablelists-4.18.0-372.118.1.el8_6 +14
  • RHSA-2024:5282 Released 2024-08-13 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux NFV TUS (v.8.4) kernel-rt-4.18.0-305.138.1.rt7.214.el8_4, kernel-rt-core-4.18.0-305.138.1.rt7.214.el8_4, kernel-rt-debug-4.18.0-305.138.1.rt7.214.el8_4 +9
    • Red Hat Enterprise Linux RT TUS (v.8.4) kernel-rt-4.18.0-305.138.1.rt7.214.el8_4, kernel-rt-core-4.18.0-305.138.1.rt7.214.el8_4, kernel-rt-debug-4.18.0-305.138.1.rt7.214.el8_4 +7
Show 1 more Red Hat advisories
  • RHSA-2024:5266 Released 2024-08-13 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v.8.4) bpftool-4.18.0-305.138.1.el8_4, kernel-4.18.0-305.138.1.el8_4, kernel-abi-stablelists-4.18.0-305.138.1.el8_4 +14
    • Red Hat Enterprise Linux BaseOS E4S (v.8.4) bpftool-4.18.0-305.138.1.el8_4, kernel-4.18.0-305.138.1.el8_4, kernel-abi-stablelists-4.18.0-305.138.1.el8_4 +14
    • Red Hat Enterprise Linux BaseOS TUS (v.8.4) bpftool-4.18.0-305.138.1.el8_4, kernel-4.18.0-305.138.1.el8_4, kernel-abi-stablelists-4.18.0-305.138.1.el8_4 +14

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 8AffectedNo fix yet
Red Hat Enterprise Linux BaseOS AUS (v. 8.2)Fixed RHSA-2024:6992
Red Hat Enterprise Linux BaseOS AUS (v.8.4)Fixed RHSA-2024:5266
Red Hat Enterprise Linux BaseOS AUS (v.8.6)Fixed RHSA-2024:5281
Red Hat Enterprise Linux BaseOS E4S (v.8.4)Fixed RHSA-2024:5266
Red Hat Enterprise Linux BaseOS E4S (v.8.6)Fixed RHSA-2024:5281
Red Hat Enterprise Linux BaseOS TUS (v.8.4)Fixed RHSA-2024:5266
Red Hat Enterprise Linux BaseOS TUS (v.8.6)Fixed RHSA-2024:5281
Red Hat Enterprise Linux NFV TUS (v.8.4)Fixed RHSA-2024:5282
Red Hat Enterprise Linux RT TUS (v.8.4)Fixed RHSA-2024:5282
Not affected: 4 products
  • Red Hat Enterprise Linux 9
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • Red Hat Enterprise Linux BaseOS E4S (v.8.6)
  • Red Hat Enterprise Linux BaseOS TUS (v.8.6)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-48828
  2. 2026-10-03 Alias added: GHSA-j7gw-xcvp-f76q
  3. 2026-10-27 EPSS moved to the 50th–90th percentile

References

Patch 5

  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
  • TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
  • TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
  • TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
  • TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
See all 15278 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences