PT-2026-44256 · Linux · Linux Kernel
CVE-2026-46133
·
Published
2026-05-28
·
Updated
2026-07-31
CVSS v3.1
7.5
High
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 7.0.11-1.1
Description
An out-of-bounds read exists in the RDMA Soft RoCE (rxe) driver. A single unauthenticated UDP packet containing an unknown opcode can trigger a kernel panic. The issue occurs because the driver fails to reject unknown opcodes before processing the Invariant Cyclic Redundancy Check (ICRC). When an unknown opcode is received, the length is treated as zero, causing an underflow during the calculation of the ICRC header. This underflow results in a large value being passed to the
crc32 le() function, leading to an out-of-bounds read of the socket buffer (skb) payload.Recommendations
Update to version 7.0.11-1.1 or newer.
Exploit
Fix
Out of bounds Read
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Weakness Enumeration
Related Identifiers
Affected Products
Linux Kernel