01 Record

CVE-2023-53344

can: bcm: bcm_tx_setup(): fix KMSAN uninit-value in vfs_write

MediumPUBLISHEDCNA: Linux

CNA base score5.5 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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02 Description

can: bcm: bcm_tx_setup(): fix KMSAN uninit-value in vfs_write

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.20% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 10.1% of scored records. A rank, not a probability.

NVD base score

5.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2025-09-17 14:56Z1 YR AGO

Last updated

2026-05-11 19:43Z5 MO AGO

Reserved

2025-09-16

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Medium (CVSS 5.5)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weaknesses

CWE-908Use of Uninitialized ResourceBase
CWE-390Detection of Error Condition Without ActionBase

Data version

5.2

Document digest

af154bd5cb9912dc9e0a768947f818de205dfde83a6afb2d7318b83aca808963

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux6f3b911d5f29b98752e5da86a295210c0c4f4e14 to < 3fa0f1e0e31b1b73cdf59d4c36c7242e6ef821be, 6f3b911d5f29b98752e5da86a295210c0c4f4e14 to < 618b15d09fed6126356101543451d49860db4388, 6f3b911d5f29b98752e5da86a295210c0c4f4e14 to < 78bc7f0ab99458221224d3ab97199c0f8e6861f1, 6f3b911d5f29b98752e5da86a295210c0c4f4e14 to < ab2a55907823f0bca56b6d03ea05e4071ba8535f, 6f3b911d5f29b98752e5da86a295210c0c4f4e14 to < bf70e0eab64c625da84d9fdf4e84466b79418920, 6f3b911d5f29b98752e5da86a295210c0c4f4e14 to < c11dbc7705b3739974ac31a13f4ab81e61a5fb07, 6f3b911d5f29b98752e5da86a295210c0c4f4e14 to < 2e6ad51c709fa794e0ce26003c9c9cd944e3383a, 6f3b911d5f29b98752e5da86a295210c0c4f4e14 to < 2b4c99f7d9a57ecd644eda9b1fb0a1072414959f, 4.8—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/3fa0f1e0e31b1b73cdf59d4c36c7242e6ef821be
git.kernel.orghttps://git.kernel.org/stable/c/618b15d09fed6126356101543451d49860db4388
git.kernel.orghttps://git.kernel.org/stable/c/78bc7f0ab99458221224d3ab97199c0f8e6861f1
git.kernel.orghttps://git.kernel.org/stable/c/ab2a55907823f0bca56b6d03ea05e4071ba8535f
git.kernel.orghttps://git.kernel.org/stable/c/bf70e0eab64c625da84d9fdf4e84466b79418920
git.kernel.orghttps://git.kernel.org/stable/c/c11dbc7705b3739974ac31a13f4ab81e61a5fb07
git.kernel.orghttps://git.kernel.org/stable/c/2e6ad51c709fa794e0ce26003c9c9cd944e3383a
git.kernel.orghttps://git.kernel.org/stable/c/2b4c99f7d9a57ecd644eda9b1fb0a1072414959f

07 Fixed in

Debian 12

linux
Fixed in 6.1.25-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.1.25-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 6.1.25-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.