dmaengine: idxd: Fix the error handling path in idxd_cdev_register()
Priority LOW 24Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 2 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Fix the error handling path in idxd_cdev_register() If a call to alloc_chrdev_region() fails, the already allocated resources are leaking. Add the needed error handling path to fix the leak.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00261 17th percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.10.121, 5.15.46, 5.17.14 +2Red Hat: 2 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 | 5.6 and later | 5.10.121, 5.15.46, 5.17.14, 5.18.3, 5.19 | Patch available | CNA |
- Linux VendorLinux Affected 5.6 and later Fixed in 5.10.121, 5.15.46, 5.17.14, 5.18.3, 5.19 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.6 to before 5.10.121; 5.11 to before 5.15.46; 5.16 to before 5.17.14; 5.18 to before 5.18.3 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.6 to before 5.10.121; 5.11 to before 5.15.46; 5.16 to before 5.17.14; 5.18 to before 5.18.3 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.121, 5.15.46, 5.17.14, 5.18.3, 5.19
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 8 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
Not affected: 3 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2022-49422
- 2026-10-03 Alias added: GHSA-jmh8-v835-2439
- 2026-11-05 CISA SSVC decision points changed
References
Patch 5
- https://git.kernel.org/stable/c/6073af78156b8c3fc1198f8bcc190b7ac3ac0143
- https://git.kernel.org/stable/c/b3c7b5d08e9d5b2ff31c03078c00ecf11042419f
- https://git.kernel.org/stable/c/5e88561eceb34ae3f88451c2b8e30fe403484189
- https://git.kernel.org/stable/c/c308a2e711a52a47f4b45e7add2b5200169e429a
- https://git.kernel.org/stable/c/aab08c1aac01097815fbcf10fce7021d2396a31f
More Linux Kernel vulnerabilities
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- 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-2022-49422 · CVE Program
- CVE-2022-49422 · NVD
- FIRST EPSS
- GHSA-jmh8-v835-2439 · GitHub Advisory Database · CC BY 4.0
- CVE-2022-49422 · 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