Read the docs
TI-2022-24351 Aliases CVE-2022-48827GHSA-g43c-r7c6-fhrv

NFSD: Fix the behavior of READ near OFFSET_MAX

Priority LOW 34CWE-125Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 8 fixed, 3 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-125 and the CVSS impact.

Summary

In the Linux kernel, the following vulnerability has been resolved: NFSD: Fix the behavior of READ near OFFSET_MAX Dan Aloni reports: > Due to commit 8cfb9015280d ("NFS: Always provide aligned buffers to > the RPC read layers") on the client, a read of 0xfff is aligned up > to server rsize of 0x1000. > > As a result, in a test where the server has a file of size > 0x7fffffffffffffff, and the client tries to read from the offset > 0x7ffffffffffff000, the read causes loff_t overflow in the server > and it returns an NFS code of EINVAL to the client. The client as > a result indefinitely retries the request. The Linux NFS client does not handle NFS?ERR_INVAL, even though all NFS specifications permit servers to return that status code for a READ. Instead of NFS?ERR_INVAL, have out-of-range READ requests succeed and return a short result. Set the EOF flag in the result to prevent the client from retrying the READ request. This behavior appears to be consistent with Solaris NFS servers. Note that NFSv3 and NFSv4 use u64 offset values on the wire. These must be converted to loff_t internally before use -- an implicit type cast is not adequate for this purpose. Otherwise VFS checks against sb->s_maxbytes do not work properly.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00623 50th percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.10.220, 5.15.24, 5.16.10 +1Red Hat: 3 advisoriesRed Hat: 8 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 later5.10.220, 5.15.24, 5.16.10, 5.17Patch availableCNA
  • Linux VendorLinux Affected 2.6.12 and later Fixed in 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 5.10.220; 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 5.10.220; 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 5.10.220, 5.15.24, 5.16.10, 5.17

Red Hat 3 advisories

  • 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
  • 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.8.4)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-2022-48827
  2. 2026-10-03 Alias added: GHSA-g43c-r7c6-fhrv
  3. 2026-11-05 EPSS moved to the 50th–90th percentile

References

Patch 4

  • 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