Bug 2363380 (CVE-2022-49845) - CVE-2022-49845 kernel: can: j1939: j1939_send_one(): fix missing CAN header initialization
Summary: CVE-2022-49845 kernel: can: j1939: j1939_send_one(): fix missing CAN header i...
Keywords:
Status: NEW
Alias: CVE-2022-49845
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-05-01 15:02 UTC by OSIDB Bzimport
Modified: 2025-05-27 08:57 UTC (History)
4 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2025-05-01 15:02:26 UTC 
In the Linux kernel, the following vulnerability has been resolved:

can: j1939: j1939_send_one(): fix missing CAN header initialization

The read access to struct canxl_frame::len inside of a j1939 created
skbuff revealed a missing initialization of reserved and later filled
elements in struct can_frame.

This patch initializes the 8 byte CAN header with zero.
Comment 1 Avinash Hanwate 2025-05-02 04:28:21 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025050141-CVE-2022-49845-2a75@gregkh/T
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