CVE-2025-39846
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().
Does this matter?
Lower severity and a low EPSS score (0.16%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.16% probability · 6th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel · debian/debian linux
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/2ee32c4c4f636e474cd8ab7c19a68cf36072ea93Patch
- https://git.kernel.org/stable/c/44822df89e8f3386871d9cad563ece8e2fd8f0e7Patch
- https://git.kernel.org/stable/c/4bd570f494124608a0696da070f00236a96fb610Patch
- https://git.kernel.org/stable/c/5ff2826c998370bf7f9ae26fe802140d220e3510Patch
- https://git.kernel.org/stable/c/b990c8c6ff50649ad3352507398e443b1e3527b2Patch
- https://git.kernel.org/stable/c/ce3b7766276894d2fbb07e2047a171f9deb965dePatch
- https://git.kernel.org/stable/c/d7286005e8fde0a430dc180a9f46c088c7d74483Patch
- https://git.kernel.org/stable/c/fafa7450075f41d232bc785a4ebcbf16374f2076Patch
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlMailing List, Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html
- https://cert-portal.siemens.com/productcert/html/ssa-089022.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.