pcmcia: Fix a NULL pointer dereference in __iodyn_find_io_region()
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.
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html
- https://cert-portal.siemens.com/productcert/html/ssa-089022.html
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- 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://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39846.json
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
- https://nvd.nist.gov/vuln/detail/CVE-2025-39846