5.5

CVE-2023-53356

usb: gadget: u_serial: Add null pointer check in gserial_suspend

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

usb: gadget: u_serial: Add null pointer check in gserial_suspend

Consider a case where gserial_disconnect has already cleared
gser->ioport. And if gserial_suspend gets called afterwards,
it will lead to accessing of gser->ioport and thus causing
null pointer dereference.

Avoid this by adding a null pointer check. Added a static
spinlock to prevent gser->ioport from becoming null after
the newly added null pointer check.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.8 < 5.10.188
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.121
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.39
Linux ≫ Linux Kernel Version >= 6.2 < 6.4.4
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.17% 0.067
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
134c704f-9b21-4f2e-91b3-4a467353bcc0 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

https://git.kernel.org/stable/c/2788a3553f7497075653210b42e2aeb6ba95e28e
Patch
https://git.kernel.org/stable/c/a8ea7ed644cbf6314b5b0136b5398754b549fb8f
Patch
https://git.kernel.org/stable/c/e60a827ac074ce6bd58305fe5a86afab5fce6a04
Patch
https://git.kernel.org/stable/c/374447e3367767156405bedd230c5d391f4b7962
Patch
https://git.kernel.org/stable/c/2f6ecb89fe8feb2b60a53325b0eeb9866d88909a
Patch