CVE-2024-49852
Published: October 23, 2024Last modified: October 23, 2024
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.8 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.114-r0) |
| Stream | linux-lts | Fixed (6.6.58-r0) |
References
- 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