CVE-2025-39846
What it is
In the Linux kernel, the following vulnerability has been resolved: pcmcia: Fix a NULL pointer dereference in __iodyn_find_io_region() In __iodyn_find_io_region(), pcmcia_make_resource() is assigned to res and used in pci_bus_alloc_resource(). There is a dereference of res in pci_bus_alloc_resource(), which could lead to a NULL pointer dereference on failure of pcmcia_make_resource(). Fix this bug by adding a check of res.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: 5.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Weakness
- CWE-476 · NULL pointer dereference
- Record status
- Modified
Affected
- Linux Kernel < 5.4.299
- Linux Kernel < 5.10.243
- Linux Kernel < 5.15.192
- Linux Kernel < 6.1.151
- Linux Kernel < 6.6.105
- Linux Kernel < 6.12.46
- Linux Kernel < 6.16.6
- Linux Kernel 6.17
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2025-39846.md and follow it. Check whether this project is affected by CVE-2025-39846. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/2ee32c4c4f636e474cd8ab7c19a68cf36072ea93
- https://git.kernel.org/stable/c/44822df89e8f3386871d9cad563ece8e2fd8f0e7
- https://git.kernel.org/stable/c/4bd570f494124608a0696da070f00236a96fb610
- https://git.kernel.org/stable/c/5ff2826c998370bf7f9ae26fe802140d220e3510
- https://git.kernel.org/stable/c/b990c8c6ff50649ad3352507398e443b1e3527b2
- https://git.kernel.org/stable/c/ce3b7766276894d2fbb07e2047a171f9deb965de
- https://git.kernel.org/stable/c/d7286005e8fde0a430dc180a9f46c088c7d74483
- https://git.kernel.org/stable/c/fafa7450075f41d232bc785a4ebcbf16374f2076
References
- https://git.kernel.org/stable/c/2ee32c4c4f636e474cd8ab7c19a68cf36072ea93
- https://git.kernel.org/stable/c/44822df89e8f3386871d9cad563ece8e2fd8f0e7
- https://git.kernel.org/stable/c/4bd570f494124608a0696da070f00236a96fb610
- https://git.kernel.org/stable/c/5ff2826c998370bf7f9ae26fe802140d220e3510
- https://git.kernel.org/stable/c/b990c8c6ff50649ad3352507398e443b1e3527b2
- https://git.kernel.org/stable/c/ce3b7766276894d2fbb07e2047a171f9deb965de
- https://git.kernel.org/stable/c/d7286005e8fde0a430dc180a9f46c088c7d74483
- https://git.kernel.org/stable/c/fafa7450075f41d232bc785a4ebcbf16374f2076
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html
- https://cert-portal.siemens.com/productcert/html/ssa-089022.html