CVE-2024-40992
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…
Does this matter?
Lower severity and a low EPSS score (0.61%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.61% probability · 47th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/163868ec1f6c610d16da9e458fe1dd7d5de97341Patch
- https://git.kernel.org/stable/c/943c94f41dfe36536dc9aaa12c9efdf548ceb996Patch
- https://git.kernel.org/stable/c/f67ac0061c7614c1548963d3ef1ee1606efd8636Patch
- https://git.kernel.org/stable/c/163868ec1f6c610d16da9e458fe1dd7d5de97341Patch
- https://git.kernel.org/stable/c/943c94f41dfe36536dc9aaa12c9efdf548ceb996Patch
- https://git.kernel.org/stable/c/f67ac0061c7614c1548963d3ef1ee1606efd8636Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.