[SRU][F/J/L/M][PATCH 0/1] CVE-2023-5178

[Yuxuan Luo]

[Impact]
A use-after-free vulnerability was found in drivers/nvme/target/tcp.c`
in `nvmet_tcp_free_crypto` due to a logical bug in the NVMe-oF/TCP
subsystem in the Linux kernel. This issue may allow a malicious user
to cause a use-after-free and double-free problem, which may permit
remote code execution or lead to local privilege escalation in case
that the attacker already has local privileges.

[Backport]
For J/L/M it is a clean cherry pick.
For Focal, a prerequisite commit, 0236d3437909 ("nvmet-tcp: move
send/recv error handling in the send/recv methods instead of
call-sites"), is cherry picked for solving conflicts.

[Test]
Compile and boot tested.

[Potential Regression]
Regression should be limited in the modified file.


Sagi Grimberg (1):
  nvmet-tcp: Fix a possible UAF in queue intialization setup

 drivers/nvme/target/tcp.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

-- 
2.34.1