scsi: elx: libefc: Fix potential use after free in efc_nport_vport_del()
In the Linux kernel, the following vulnerability has been resolved: scsi: elx: libefc: Fix potential use after free in efc_nport_vport_del() The kref_put() function will call nport->release if the refcount drops to zero. The nport->release release function is _efc_nport_free() which frees "nport". But then we dereference "nport" on the next line which is a use after free. Re-order these lines to avoid the use after free.
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: scsi: elx: libefc: Fix potential use after free in efc_nport_vport_del() The kref_put() function will call nport->release if the refcount drops to zero. The nport->release release function is _efc_nport_free() which frees "nport". But then we dereference "nport" on the next line which is a use after free. Re-order these lines to avoid the use after free.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/16a570f07d870a285b0c0b0d1ca4dff79e8aa5ff
- https://git.kernel.org/stable/c/2e4b02fad094976763af08fec2c620f4f8edd9ae
- https://git.kernel.org/stable/c/7c2908985e4ae0ea1b526b3916de9e5351650908
- https://git.kernel.org/stable/c/98752fcd076a8cbc978016eae7125b4971be1eec
- https://git.kernel.org/stable/c/abc71e89170ed32ecf0a5a29f31aa711e143e941
- https://git.kernel.org/stable/c/baeb8628ab7f4577740f00e439d3fdf7c876b0ff
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/49xxx/CVE-2024-49852.json
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://nvd.nist.gov/vuln/detail/CVE-2024-49852