Bug 2187813 (CVE-2023-2166) - CVE-2023-2166 Kernel: NULL pointer dereference in can_rcv_filter
Summary: CVE-2023-2166 Kernel: NULL pointer dereference in can_rcv_filter
Keywords:
Status: NEW
Alias: CVE-2023-2166
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Nobody
QA Contact:
URL:
Whiteboard:
Depends On: 2187815 2187816 2187817 2187818
Blocks: 2158739
TreeView+ depends on / blocked
 
Reported: 2023-04-18 18:39 UTC by Rohit Keshri
Modified: 2023-07-07 08:28 UTC (History)
45 users (show)

Fixed In Version: Kernel 6.1 RC9
Doc Type: If docs needed, set a value
Doc Text:
A NULL pointer dereference issue was found in the can protocol in net/can/af_can.c in the Linux kernel, where ml_priv may not be initialized in the receive path of CAN frames. This flaw allows a local user to crash the system or cause a denial of service.
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description Rohit Keshri 2023-04-18 18:39:56 UTC 
A null pointer dereference issue was found in can protocol in net/can/af_can.c in the Linux before Linux. ml_priv may not be initialized in the receive path of CAN frames. A local user could use this flaw to crash the system or potentially cause a denial of service.

Affected component: can protocol

References:
https://lore.kernel.org/lkml/CAO4mrfcV_07hbj8NUuZrA8FH-kaRsrFy-2metecpTuE5kKHn5w@mail.gmail.com/
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0acc442309a0a1b01bcdaa135e56e6398a49439c
Note You need to log in before you can comment on or make changes to this bug.