Bug 2516900 (CVE-2026-74394) - CVE-2026-74394 kernel: RDMA/srpt: fix integer overflow in immediate data length check
Summary: CVE-2026-74394 kernel: RDMA/srpt: fix integer overflow in immediate data leng...
Keywords:
Status: NEW
Alias: CVE-2026-74394
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-15 06:39 UTC by OSIDB Bzimport
Modified: 2026-08-20 20:41 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


Attachments (Terms of Use)

Description OSIDB Bzimport 2026-08-15 06:39:21 UTC
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.


Note You need to log in before you can comment on or make changes to this bug.