ipmi:msghandler: Fix potential memory corruption in ipmi_create_user()
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 · CNA. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
In the Linux kernel, the following vulnerability has been resolved: ipmi:msghandler: Fix potential memory corruption in ipmi_create_user() The "intf" list iterator is an invalid pointer if the correct "intf->intf_num" is not found. Calling atomic_dec(&intf->nr_users) on and invalid pointer will lead to memory corruption. We don't really need to call atomic_dec() if we haven't called atomic_add_return() so update the if (intf->in_shutdown) path as well.
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 | 5.19 and later | 6.1.146, 6.6.99, 6.12.39, 6.15.7, 6.16 | Patch available | CNA |
- Linux VendorLinux Affected 5.19 and later Fixed in 6.1.146, 6.6.99, 6.12.39, 6.15.7, 6.16 Patch available CNA
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.1.146, 6.6.99, 6.12.39, 6.15.7, 6.16
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
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-2025-38456
- 2026-10-03 Alias added: GHSA-45pp-43qp-pmgc
- 2026-11-07 Affected versions changed · Red Hat
References
Patch 5
- https://git.kernel.org/stable/c/cbc1670297f675854e982d23c8583900ff0cc67a
- https://git.kernel.org/stable/c/e2d5c005dfc96fe857676d1d8ac46b29275cb89b
- https://git.kernel.org/stable/c/9e0d33e75c1604c3fad5586ad4dfa3b2695a3950
- https://git.kernel.org/stable/c/7c1a6ddb99858e7d68961f74ae27caeeeca67b6a
- https://git.kernel.org/stable/c/fa332f5dc6fc662ad7d3200048772c96b861cf6b
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-2025-38456 · CVE Program
- CVE-2025-38456 · NVD
- FIRST EPSS
- GHSA-45pp-43qp-pmgc · GitHub Advisory Database · CC BY 4.0
- CVE-2025-38456 · Red Hat security data · CC BY 4.0
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