7.8

CVE-2024-56605

Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create()

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

Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create()

bt_sock_alloc() allocates the sk object and attaches it to the provided
sock object. On error l2cap_sock_alloc() frees the sk object, but the
dangling pointer is still attached to the sock object, which may create
use-after-free in other code.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 5.4.287
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.231
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.174
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.120
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.66
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.5
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.24% 0.143
CVSS Metriken
Quelle 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
134c704f-9b21-4f2e-91b3-4a467353bcc0 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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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/61686abc2f3c2c67822aa23ce6f160467ec83d35
Patch
https://git.kernel.org/stable/c/7c4f78cdb8e7501e9f92d291a7d956591bf73be9
Patch
https://git.kernel.org/stable/c/8ad09ddc63ace3950ac43db6fbfe25b40f589dd6
Patch
https://git.kernel.org/stable/c/a8677028dd5123e5e525b8195483994d87123de4
Patch
https://git.kernel.org/stable/c/bb2f2342a6ddf7c04f9aefbbfe86104cd138e629
Patch
https://git.kernel.org/stable/c/daa13175a6dea312a76099066cb4cbd4fc959a84
Patch
https://git.kernel.org/stable/c/f6ad641646b67f29c7578dcd6c25813c7dcbf51e
Patch
https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html