In the Linux kernel, the following vulnerability has been resolved:
RDMA/rxe: Fix responder length checking for UD request packets
According to the IBA specification:
If a UD request packet is detected with an invalid length, the request
shall be an invalid request and it shall be silently dropped by
the responder. The responder then waits for a new request packet.
commit 689c5421bfe0 (“RDMA/rxe: Fix incorrect responder length checking”)
defers responder length check for UD QPs in function copy_data
.
But it introduces a regression issue for UD QPs.
When the packet size is too large to fit in the receive buffer.
copy_data
will return error code -EINVAL. Then send_data_in
will return RESPST_ERR_MALFORMED_WQE. UD QP will transfer into
ERROR state.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 24.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 24.04 | noarch | linux-aws | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-aws-6.5 | < any | UNKNOWN |
ubuntu | 24.04 | noarch | linux-azure | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-azure-6.5 | < any | UNKNOWN |
ubuntu | 24.04 | noarch | linux-gcp | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-gcp-6.5 | < any | UNKNOWN |
ubuntu | 24.04 | noarch | linux-gke | < any | UNKNOWN |
ubuntu | 24.04 | noarch | linux-ibm | < any | UNKNOWN |
ubuntu | 24.04 | noarch | linux-intel | < any | UNKNOWN |
git.kernel.org/linus/f67ac0061c7614c1548963d3ef1ee1606efd8636 (6.10-rc5)
git.kernel.org/stable/c/163868ec1f6c610d16da9e458fe1dd7d5de97341
git.kernel.org/stable/c/943c94f41dfe36536dc9aaa12c9efdf548ceb996
git.kernel.org/stable/c/f67ac0061c7614c1548963d3ef1ee1606efd8636
launchpad.net/bugs/cve/CVE-2024-40992
nvd.nist.gov/vuln/detail/CVE-2024-40992
security-tracker.debian.org/tracker/CVE-2024-40992
www.cve.org/CVERecord?id=CVE-2024-40992