CVE-2022-48686

In the Linux kernel, the following vulnerability has been resolved:

nvme-tcp: fix UAF when detecting digest errors

We should also bail from the io_work loop when we set rd_enabled to true, so we dont attempt to read data from the socket when the TCP stream is already out-of-sync or corrupted.

Weakness

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.

Affected Software

Potential Mitigations

References

• https://git.kernel.org/stable/c/13c80a6c112467bab5e44d090767930555fc17a5
• https://git.kernel.org/stable/c/160f3549a907a50e51a8518678ba2dcf2541abea
• https://git.kernel.org/stable/c/19816a0214684f70b49b25075ff8c402fdd611d3
• https://git.kernel.org/stable/c/5914fa32ef1b7766fea933f9eed94ac5c00aa7ff
• https://git.kernel.org/stable/c/c3eb461aa56e6fa94fb80442ba2586bd223a8886
• https://git.kernel.org/stable/c/13c80a6c112467bab5e44d090767930555fc17a5
• https://git.kernel.org/stable/c/160f3549a907a50e51a8518678ba2dcf2541abea
• https://git.kernel.org/stable/c/19816a0214684f70b49b25075ff8c402fdd611d3
• https://git.kernel.org/stable/c/5914fa32ef1b7766fea933f9eed94ac5c00aa7ff
• https://git.kernel.org/stable/c/c3eb461aa56e6fa94fb80442ba2586bd223a8886