CVE-2026-74394

CVE-2026-74394

Critical · published August 15, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
44.6
In the wild
Unconfirmed
What it is

In the Linux kernel, the following vulnerability has been resolved:

RDMA/srpt: fix integer overflow in immediate data length check

imm_buf->len is a user-controlled uint32_t received from the network.

Adding it to imm_data_offset without overflow checking allows a

malicious initiator to send len=0xFFFFFFFF, causing req_size to wrap

around to a small value, bypassing the bounds check, and subsequently

passing a ~4GB length to sg_init_one().

Use check_add_overflow() to detect wrapping before the comparison.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00540 · 44.6th percentile
Published
2026-08-15T10:22Z
References (8)
EPSS history
Timeline
  • 15 AUG 05:59Z
    RDMA/srpt: fix integer overflow in immediate data length check
    cvelistv5