5.5

CVE-2025-37987

pds_core: Prevent possible adminq overflow/stuck condition

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

pds_core: Prevent possible adminq overflow/stuck condition

The pds_core's adminq is protected by the adminq_lock, which prevents
more than 1 command to be posted onto it at any one time. This makes it
so the client drivers cannot simultaneously post adminq commands.
However, the completions happen in a different context, which means
multiple adminq commands can be posted sequentially and all waiting
on completion.

On the FW side, the backing adminq request queue is only 16 entries
long and the retry mechanism and/or overflow/stuck prevention is
lacking. This can cause the adminq to get stuck, so commands are no
longer processed and completions are no longer sent by the FW.

As an initial fix, prevent more than 16 outstanding adminq commands so
there's no way to cause the adminq from getting stuck. This works
because the backing adminq request queue will never have more than 16
pending adminq commands, so it will never overflow. This is done by
reducing the adminq depth to 16.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
LinuxLinux Kernel Version >= 6.4 < 6.6.93
LinuxLinux Kernel Version >= 6.7 < 6.12.26
LinuxLinux Kernel Version >= 6.13 < 6.14.5
LinuxLinux Kernel Version6.15 Updaterc1
LinuxLinux Kernel Version6.15 Updaterc2
LinuxLinux Kernel Version6.15 Updaterc3
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% 0.046
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
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/2982e07ad72b48eb12c29a87a3f2126ea552688c
Patch
https://git.kernel.org/stable/c/5e3dc65675faad846420d24762e4faadc12d9392
Patch
https://git.kernel.org/stable/c/d9e2f070d8af60f2c8c02b2ddf0a9e90b4e9220c
Patch
https://git.kernel.org/stable/c/517f928cc0c133472618cbba18382b46f5f71ba3
Patch