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CVE-2023-54085

mptcp: fix NULL pointer dereference on fastopen early fallback PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix NULL pointer dereference on fastopen early fallback In case of early fallback to TCP, subflow_syn_recv_sock() deletes the subflow context before returning the newly allocated sock to the caller. The fastopen path does not cope with the above unconditionally dereferencing the subflow context.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 36b122baf6a8bd46b4a591f12f4ed17b22257408 before 95135835519b0ab931c39908b2c99e9fb3c9068b; affected 36b122baf6a8bd46b4a591f12f4ed17b22257408 before c0ff6f6da66a7791a32c0234388b1bdc00244917
Linux / Linuxaffected 6.2; unaffected 0 before 6.2; unaffected 6.2.12 through 6.2.*; unaffected 6.3 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.