Description

In the Linux kernel, the following vulnerability has been resolved: sctp: Prevent TOCTOU out-of-bounds write For the following path not holding the sock lock, sctp_diag_dump() -> sctp_for_each_endpoint() -> sctp_ep_dump() make sure not to exceed bounds in case the address list has grown between buffer allocation (time-of-check) and write (time-of-use).

References 8

• git.kernel.org https://git.kernel.org/stable/c/2fe08fcaacb7eb019fa9c81db39b2214de216677
• git.kernel.org https://git.kernel.org/stable/c/3006959371007fc2eae4a078f823c680fa52de1a
• git.kernel.org https://git.kernel.org/stable/c/584307275b2048991b2e8984962189b6cc0a9b85
• git.kernel.org https://git.kernel.org/stable/c/72e3fea68eac8d088e44c3dd954e843478e9240e
• git.kernel.org https://git.kernel.org/stable/c/89eac1e150dbd42963e13d23828cb8c4e0763196
• git.kernel.org https://git.kernel.org/stable/c/95aef86ab231f047bb8085c70666059b58f53c09
• git.kernel.org https://git.kernel.org/stable/c/b106a68df0650b694b254427cd9250c04500edd3
• git.kernel.org https://git.kernel.org/stable/c/c9119f243d9c0da3c3b5f577a328de3e7ffd1b42

Remediation