cve-2024-45009
Vulnerability from cvelistv5
Published
2024-09-11 15:13
Modified
2025-05-04 09:30
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: only decrement add_addr_accepted for MPJ req Adding the following warning ... WARN_ON_ONCE(msk->pm.add_addr_accepted == 0) ... before decrementing the add_addr_accepted counter helped to find a bug when running the "remove single subflow" subtest from the mptcp_join.sh selftest. Removing a 'subflow' endpoint will first trigger a RM_ADDR, then the subflow closure. Before this patch, and upon the reception of the RM_ADDR, the other peer will then try to decrement this add_addr_accepted. That's not correct because the attached subflows have not been created upon the reception of an ADD_ADDR. A way to solve that is to decrement the counter only if the attached subflow was an MP_JOIN to a remote id that was not 0, and initiated by the host receiving the RM_ADDR.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1c1f721375989579e46741f59523e39ec9b2a9bdPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2060f1efab370b496c4903b840844ecaff324c3cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/35b31f5549ede4070566b949781e83495906b43dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/85b866e4c4e63a1d7afb58f1e24273caad03d0b7Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d20bf2c96d7ffd171299b32f562f70e5bf5dc608Patch
Impacted products
Vendor Product Version
Linux Linux Version: d0876b2284cf8b34dd214b2d0aa21071c345da59
Version: d0876b2284cf8b34dd214b2d0aa21071c345da59
Version: d0876b2284cf8b34dd214b2d0aa21071c345da59
Version: d0876b2284cf8b34dd214b2d0aa21071c345da59
Version: d0876b2284cf8b34dd214b2d0aa21071c345da59
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   Linux Linux Version: 5.10
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