imPC@ndo IT

Tracker / CVE-2023-52887

CVE-2023-52887

High 7.5

In the Linux kernel, the following vulnerability has been resolved: net: can: j1939: enhanced error handling for tightly received RTS messages in xtp_rx_rts_session_new This patch enhances error handling in scenarios with RTS (Request to Send) messages arriving closely. It replaces the less informative WARN_ON_ONCE backtraces with a new error handling method. This provides clearer error messages and allows for the early termination of problematic sessions. Previously, sessions were only released at the end of j1939_xtp_rx_rts(). Potentially this could be reproduced with something like: testj1939 -r vcan0:0x80 & while true; do # send first RTS cansend vcan0 18EC8090#1014000303002301; # send second RTS cansend vcan0 18EC8090#1014000303002301; # send abort cansend vcan0 18EC8090#ff00000000002301; done

Affected products and versions

linux linux_kernel
linux linux_kernel · 5.11 → 5.15.162
linux linux_kernel · 5.16 → 6.1.97
linux linux_kernel · 5.4 → 5.4.279
linux linux_kernel · 5.5 → 5.10.221
linux linux_kernel · 6.2 → 6.6.37
linux linux_kernel · 6.7 → 6.9.8

Analysis

This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.

References