iavf: Fix handling of dummy receive descriptors
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: 5 fixed, 3 without a fix
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-401.
Summary
In the Linux kernel, the following vulnerability has been resolved: iavf: Fix handling of dummy receive descriptors Fix memory leak caused by not handling dummy receive descriptor properly. iavf_get_rx_buffer now sets the rx_buffer return value for dummy receive descriptors. Without this patch, when the hardware writes a dummy descriptor, iavf would not free the page allocated for the previous receive buffer. This is an unlikely event but can still happen. [Jesse: massaged commit message]
Why it matters now
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 | 5.1.20 to before 5.2; 5.2.3 to before 5.3 | 5.2, 5.3 | Patch available | CNA |
| Linux | Linux | 5.3 and later | 5.4.208, 5.10.134, 5.15.58, 5.18.15, 5.19 | Patch available | CNA |
- Linux VendorLinux Affected 5.1.20 to before 5.2; 5.2.3 to before 5.3 Fixed in 5.2, 5.3 Patch available CNA
- Linux VendorLinux Affected 5.3 and later Fixed in 5.4.208, 5.10.134, 5.15.58, 5.18.15, 5.19 Patch available CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.1.20 to before 5.2; 5.2.3 to before 5.4.208; 5.5 to before 5.10.134; 5.11 to before 5.15.58; 5.16 to before 5.18.15 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:* | 5.19 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:* | 5.19 rc2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:* | 5.19 rc3 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.19:rc4:*:*:*:*:*:* | 5.19 rc4 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.19:rc5:*:*:*:*:*:* | 5.19 rc5 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.19:rc6:*:*:*:*:*:* | 5.19 rc6 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.19:rc7:*:*:*:*:*:* | 5.19 rc7 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.1.20 to before 5.2; 5.2.3 to before 5.4.208; 5.5 to before 5.10.134; 5.11 to before 5.15.58; 5.16 to before 5.18.15 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:* Versions 5.19 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:* Versions 5.19 rc2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:* Versions 5.19 rc3 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.19:rc4:*:*:*:*:*:* Versions 5.19 rc4 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.19:rc5:*:*:*:*:*:* Versions 5.19 rc5 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.19:rc6:*:*:*:*:*:* Versions 5.19 rc6 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.19:rc7:*:*:*:*:*:* Versions 5.19 rc7 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.2, 5.3
- Fix · CNA Linux (Linux) Fixed in 5.4.208, 5.10.134, 5.15.58, 5.18.15, 5.19
Red Hat 2 advisories
- RHSA-2023:2951 Released 2023-05-16 · Red Hat rating Importantkernel security, bug fix, and enhancement update
- Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-477.10.1.el8_8, kernel-4.18.0-477.10.1.el8_8, kernel-abi-stablelists-4.18.0-477.10.1.el8_8 +19
- Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-477.10.1.el8_8
- 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 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. 8) | Fixed | RHSA-2023:2951 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2023:2458 |
| Red Hat Enterprise Linux CRB (v. 8) | Fixed | RHSA-2023:2951 |
| Red Hat Enterprise Linux CRB (v. 9) | Fixed | RHSA-2023:2458 |
Not affected: 2 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2022-49583
- 2026-10-03 Alias added: GHSA-chhr-7gpp-xcc8
References
Patch 5
- https://git.kernel.org/stable/c/d88d59faf4e6f9cc4767664206afdb999b10ec77
- https://git.kernel.org/stable/c/c6af94324911ef0846af1a5ce5e049ca736db34b
- https://git.kernel.org/stable/c/2918419c06088f6709ceb543feb01752779ade4c
- https://git.kernel.org/stable/c/6edb818732fc05fda495f5b3a749bd1cee01398b
- https://git.kernel.org/stable/c/a9f49e0060301a9bfebeca76739158d0cf91cdf6
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-2022-49583 · CVE Program
- CVE-2022-49583 · NVD
- FIRST EPSS
- GHSA-chhr-7gpp-xcc8 · GitHub Advisory Database · CC BY 4.0
- CVE-2022-49583 · Red Hat security data · CC BY 4.0
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