CVE-2023-52887 | 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.
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
- 🔗 git.kernel.org/stable/c/ed581989d7ea9df6f8646beba2341e32…
- 🔗 git.kernel.org/stable/c/f6c839e717901dbd6b1c1ca807b62102…
- 🔗 git.kernel.org/stable/c/1762ca80c2b72dd1b5821c5e347713ae…
- 🔗 git.kernel.org/stable/c/26b18dd30e63d4fd777be429148e8e4e…
- 🔗 git.kernel.org/stable/c/177e33b655d35d72866b50aec8430711…
- 🔗 git.kernel.org/stable/c/0bc0a7416ea73f79f915c9a05ac0858d…
- 🔗 git.kernel.org/stable/c/d3e2904f71ea0fe7eaff1d68a2b0363c…
- 🔗 lists.debian.org/debian-lts-announce/2025/01/msg00001.html
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CVE-2023-52887 | 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.
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