7.8

CVE-2024-26856

net: sparx5: Fix use after free inside sparx5_del_mact_entry

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.
Daten sind bereitgestellt durch 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
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.23% 0.132
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://git.kernel.org/stable/c/0de693d68b0a18d5e256556c7c62d92cca35ad52
Patch
Mailing List
https://git.kernel.org/stable/c/71809805b95052ff551922f11660008fb3666025
Patch
Mailing List
https://git.kernel.org/stable/c/89d72d4125e94aa3c2140fedd97ce07ba9e37674
Patch
Mailing List
https://git.kernel.org/stable/c/e46274df1100fb0c06704195bfff5bfbd418bf64
Patch
Mailing List
https://git.kernel.org/stable/c/e83bebb718fd1f42549358730e1206164e0861d6
Patch
Mailing List