7.8

CVE-2024-26856

In the Linux kernel, the following vulnerability has been resolved:

net: sparx5: Fix use after free inside sparx5_del_mact_entry

Based on the static analyzis of the code it looks like when an entry
from the MAC table was removed, the entry was still used after being
freed. More precise the vid of the mac_entry was used after calling
devm_kfree on the mac_entry.
The fix consists in first using the vid of the mac_entry to delete the
entry from the HW and after that to free it.
Data is provided by the National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.14 < 5.15.152
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.82
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.22
Linux ≫ Linux Kernel Version >= 6.7 < 6.7.10
Linux ≫ Linux Kernel Version6.8 Updaterc1
Linux ≫ Linux Kernel Version6.8 Updaterc2
Linux ≫ Linux Kernel Version6.8 Updaterc3
Linux ≫ Linux Kernel Version6.8 Updaterc4
Linux ≫ Linux Kernel Version6.8 Updaterc5
Linux ≫ Linux Kernel Version6.8 Updaterc6
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.02% 0.039
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.