5.5

CVE-2023-53551

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

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

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

Consider a case where gserial_disconnect has already cleared
gser->ioport. And if a wakeup interrupt triggers afterwards,
gserial_resume gets called, which will lead to accessing of
gser->ioport and thus causing null pointer dereference.Add
a null pointer check to prevent this.

Added a static spinlock to prevent gser->ioport from becoming
null after the newly added check.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.8 < 5.10.171
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.97
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.15
Linux ≫ Linux Kernel Version >= 6.2 < 6.2.2
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.15% 0.041
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
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/c5360eec648bd506afa304ae4a71f82e13d41897
Patch
https://git.kernel.org/stable/c/3b24c980dc07be4550a9d1450ed7057f882530e5
Patch
https://git.kernel.org/stable/c/ec357cd3e8af614855d286dd378725cdc7264df6
Patch
https://git.kernel.org/stable/c/44e004f757a7ae13dfebaadbcfdb1a6f98c10377
Patch
https://git.kernel.org/stable/c/5ec63fdbca604568890c577753c6f66c5b3ef0b5
Patch