PT-2025-37216 · Linux+5 · Linux Kernel+5
Published
2025-07-29
·
Updated
2026-04-20
·
CVE-2025-39758
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions:
Linux kernel (affected versions not specified)
Description:
A flaw was discovered in the Linux kernel’s RDMA/siw subsystem, specifically within the
siw tcp sendpages function. The issue involves an incorrect byte count being used in sendmsg calls, leading to oversized iov iters. This bug was previously benign but has recently caused out-of-bounds crashes due to changes in the slab allocator that disallow sendpage on large kmalloc allocations. The problem arises from discrepancies in iov iter behavior between the MSG SPLICE PAGES and regular copy paths.Recommendations:
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Allocation of Resources Without Limits
Found an issue in the description? Have something to add? Feel free to write us 👾
Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu