ksmbd: fix UAF issue in ksmbd_tcp_new_connection()

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commit 38d20c6290 upstream.

The race is between the handling of a new TCP connection and
its disconnection. It leads to UAF on `struct tcp_transport` in
ksmbd_tcp_new_connection() function.

Cc: stable@vger.kernel.org
Reported-by: zdi-disclosures@trendmicro.com # ZDI-CAN-22991
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Namjae Jeon 2024-01-13 15:30:07 +09:00 • committed by Greg Kroah-Hartman

parent 5e6dfec958

commit 69d54650b7

4 changed files with 13 additions and 18 deletions

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6

fs/smb/server/connection.c

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1

fs/smb/server/connection.h

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11

fs/smb/server/transport_rdma.c

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13

fs/smb/server/transport_tcp.c

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