rapidio: fix possible UAF when kfifo_alloc() fails
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.
Summary
In the Linux kernel, the following vulnerability has been resolved: rapidio: fix possible UAF when kfifo_alloc() fails If kfifo_alloc() fails in mport_cdev_open(), goto err_fifo and just free priv. But priv is still in the chdev->file_list, then list traversal may cause UAF. This fixes the following smatch warning: drivers/rapidio/devices/rio_mport_cdev.c:1930 mport_cdev_open() warn: '&priv->list' not removed from list
Why it matters now
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 | 4.6 and later | 4.9.337, 4.14.303, 4.19.270, 5.4.229, 5.10.163, 5.15.86, 6.0.16, 6.1.2, 6.2 | Patch available | CNA |
- Linux VendorLinux Affected 4.6 and later Fixed in 4.9.337, 4.14.303, 4.19.270, 5.4.229, 5.10.163, 5.15.86, 6.0.16, 6.1.2, 6.2 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 4.6 to before 4.9.337; 4.10 to before 4.14.303; 4.15 to before 4.19.270; 4.20 to before 5.4.229; 5.5 to before 5.10.163; 5.11 to before 5.15.86; 5.16 to before 6.0.16; 6.1 to before 6.1.2 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 4.6 to before 4.9.337; 4.10 to before 4.14.303; 4.15 to before 4.19.270; 4.20 to before 5.4.229; 5.5 to before 5.10.163; 5.11 to before 5.15.86; 5.16 to before 6.0.16; 6.1 to before 6.1.2 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 4.9.337, 4.14.303, 4.19.270, 5.4.229, 5.10.163, 5.15.86, 6.0.16, 6.1.2, 6.2
Vendor assessments
Red Hat
Not affected: 5 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2022-50245
- 2026-10-03 Alias added: GHSA-v4vx-qxh4-8ww4
References
Patch 9
- https://git.kernel.org/stable/c/2a6c75adf8192f07ddcdd4a1a13488c890a73919
- https://git.kernel.org/stable/c/2dfd60724d271a6ab99f93f40f38f2ced1ddbb87
- https://git.kernel.org/stable/c/a253dde0403a153075ffb254f6f7b2635e49e97a
- https://git.kernel.org/stable/c/311b488405ac45af46756b1c8f1d27007b68b07e
- https://git.kernel.org/stable/c/5ee850645e42f541ce1ea8130c2b27cc495f965c
- https://git.kernel.org/stable/c/2f5cc7fd73fd6253cc71214f0dd499cc62feb469
- https://git.kernel.org/stable/c/2ba06e57f933f0eac242e8b389433da1cc00d4d5
- https://git.kernel.org/stable/c/cb87af2c19c0993f6e21f75b963a5599c5a73e76
- https://git.kernel.org/stable/c/02d7d89f816951e0862147d751b1150d67aaebdd
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-2022-50245 · CVE Program
- CVE-2022-50245 · NVD
- FIRST EPSS
- GHSA-v4vx-qxh4-8ww4 · GitHub Advisory Database · CC BY 4.0
- CVE-2022-50245 · 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