NFSD: prevent integer overflow on 32 bit systems
Priority LOW 37CWE-190Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · High
- Fix status
- Partial Red Hat: 1 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: prevent integer overflow on 32 bit systems On a 32 bit system, the "len * sizeof(*p)" operation can have an integer overflow.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00626 50th percentileScored 2026-11-07
Fix Partial Linux (Linux): 4.19.238, 5.4.189, 5.10.110 +4Red Hat: 1 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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 4.17 and later | 4.19.238, 5.4.189, 5.10.110, 5.15.33, 5.16.19, 5.17.2, 5.18 | Patch available | CNA |
- Linux VendorLinux Affected 4.17 and later Fixed in 4.19.238, 5.4.189, 5.10.110, 5.15.33, 5.16.19, 5.17.2, 5.18 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | before 4.19.238; 4.20 to before 5.4.189; 5.5 to before 5.10.110; 5.11 to before 5.15.33; 5.16 to before 5.16.19; 5.17 to before 5.17.2 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 4.19.238; 4.20 to before 5.4.189; 5.5 to before 5.10.110; 5.11 to before 5.15.33; 5.16 to before 5.16.19; 5.17 to before 5.17.2 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 4.19.238, 5.4.189, 5.10.110, 5.15.33, 5.16.19, 5.17.2, 5.18
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
Not affected: 4 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
Timeline
- 2026-10-02 Threatist record created from CVE-2022-49279
- 2026-10-03 Alias added: GHSA-9crv-c24c-9g53
- 2026-10-31 EPSS moved to the 50th–90th percentile
References
Patch 7
- https://git.kernel.org/stable/c/3a2789e8ccb4a3e2a631f6817a2d3bb98b8c4fd8
- https://git.kernel.org/stable/c/ce1aa09cc14ed625104acc2d487bd92b9a88efe2
- https://git.kernel.org/stable/c/7af164fa2f1abc577d357d22d83a2f3490875d7e
- https://git.kernel.org/stable/c/303cd6173dce0a28d26526c77814eb90a41bd898
- https://git.kernel.org/stable/c/79b1c54fc6ce09ee0d5fe088bb3de26ae2150e3c
- https://git.kernel.org/stable/c/e4195d27306ea468a6dc3a27af6f586709951229
- https://git.kernel.org/stable/c/23a9dbbe0faf124fc4c139615633b9d12a3a89ef
More Linux Kernel vulnerabilities
- 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
Sources
- CVE-2022-49279 · CVE Program
- CVE-2022-49279 · NVD
- FIRST EPSS
- GHSA-9crv-c24c-9g53 · GitHub Advisory Database · CC BY 4.0
- CVE-2022-49279 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences