NFS: Avoid writeback threads getting stuck in mempool_alloc()
Priority LOW 24CWE-835Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 3 fixed, 4 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-835.
Summary
In the Linux kernel, the following vulnerability has been resolved: NFS: Avoid writeback threads getting stuck in mempool_alloc() In a low memory situation, allow the NFS writeback code to fail without getting stuck in infinite loops in mempool_alloc().
Why it matters now
EPSS 0.00253 16th percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.10.111, 5.15.34, 5.16.20 +2Red Hat: 1 advisoryRed Hat: 3 fixed, 4 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 5.3 and later | 5.10.111, 5.15.34, 5.16.20, 5.17.3, 5.18 | Patch available | CNA |
- Linux VendorLinux Affected 5.3 and later Fixed in 5.10.111, 5.15.34, 5.16.20, 5.17.3, 5.18 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | before 5.10.111; 5.11 to before 5.15.34; 5.16 to before 5.16.20; 5.17 to before 5.17.3 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 5.10.111; 5.11 to before 5.15.34; 5.16 to before 5.16.20; 5.17 to before 5.17.3 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.111, 5.15.34, 5.16.20, 5.17.3, 5.18
Red Hat 1 advisory
- RHSA-2023:2458 Released 2023-05-09 · Red Hat rating Importantkernel security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-284.11.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.11.1.el9_2, kernel-64k-devel-5.14.0-284.11.1.el9_2 +10
- Red Hat Enterprise Linux BaseOS (v. 9) bpftool-7.0.0-284.11.1.el9_2, kernel-5.14.0-284.11.1.el9_2, kernel-64k-5.14.0-284.11.1.el9_2 +29
- Red Hat Enterprise Linux CRB (v. 9) kernel-tools-libs-devel-5.14.0-284.11.1.el9_2
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 8 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 9 | Affected | No fix yet |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2023:2458 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2023:2458 |
| Red Hat Enterprise Linux CRB (v. 9) | Fixed | RHSA-2023:2458 |
Not affected: 1 product
- Red Hat Enterprise Linux 10
Timeline
- 2026-10-02 Threatist record created from CVE-2022-49097
- 2026-10-03 Alias added: GHSA-g6v2-566p-8fgx
References
Patch 5
- https://git.kernel.org/stable/c/c74e2f6ecc51bd08bb5b0335477dba954a50592e
- https://git.kernel.org/stable/c/ea029e4ce760f786919d06ef52efa2e50ea92a5f
- https://git.kernel.org/stable/c/1b3fa9a3c420c31e77b406ddc28f3a627100516c
- https://git.kernel.org/stable/c/a6caeddd68977a1aaaf62fbd1955b41dd5c3c5d3
- https://git.kernel.org/stable/c/0bae835b63c53f86cdc524f5962e39409585b22c
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-2022-49097 · CVE Program
- CVE-2022-49097 · NVD
- FIRST EPSS
- GHSA-g6v2-566p-8fgx · GitHub Advisory Database · CC BY 4.0
- CVE-2022-49097 · Red Hat security data · CC BY 4.0
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