CVE-2024-49852

high

Description

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.

References

https://git.kernel.org/stable/c/baeb8628ab7f4577740f00e439d3fdf7c876b0ff

https://git.kernel.org/stable/c/abc71e89170ed32ecf0a5a29f31aa711e143e941

https://git.kernel.org/stable/c/98752fcd076a8cbc978016eae7125b4971be1eec

https://git.kernel.org/stable/c/7c2908985e4ae0ea1b526b3916de9e5351650908

https://git.kernel.org/stable/c/2e4b02fad094976763af08fec2c620f4f8edd9ae

https://git.kernel.org/stable/c/16a570f07d870a285b0c0b0d1ca4dff79e8aa5ff

Details

Source: Mitre, NVD

Published: 2024-10-21

Updated: 2024-10-23

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High