CVE-2024-53094

CriticalCVSS 9.8

Published: 21/11/2024(UTC)Updated: 04/08/2026(UTC)Translated: 05/08/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.22%

12th percentile - higher than 12% of all known CVEs

Summary

In the Linux kernel, the RDMA/siw driver lacks a sendpage_ok() check, leading to the use of a slab page in sendpage and triggering a warning in skb_splice_from_iter(). The issue occurs during ISER over SIW operation.

Risk Assessment

The vulnerability may cause kernel warnings and potential network instability, especially in environments using iSER over SIW.

Recommendation

It is recommended to update the Linux kernel to a version containing the fix that adds a sendpage_ok() check and disables the MSG_SPLICE_PAGES flag when necessary.

Original NVD description (English source)

In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Add sendpage_ok() check to disable MSG_SPLICE_PAGES While running ISER over SIW, the initiator machine encounters a warning from skb_splice_from_iter() indicating that a slab page is being used in send_page. To address this, it is better to add a sendpage_ok() check within the driver itself, and if it returns 0, then MSG_SPLICE_PAGES flag should be disabled before entering the network stack. A similar issue has been discussed for NVMe in this thread: https://lore.kernel.org/all/[email protected]/ WARNING: CPU: 0 PID: 5342 at net/core/skbuff.c:7140 skb_splice_from_iter+0x173/0x320 Call Trace: tcp_sendmsg_locked+0x368/0xe40 siw_tx_hdt+0x695/0xa40 [siw] siw_qp_sq_process+0x102/0xb00 [siw] siw_sq_resume+0x39/0x110 [siw] siw_run_sq+0x74/0x160 [siw] kthread+0xd2/0x100 ret_from_fork+0x34/0x40 ret_from_fork_asm+0x1a/0x30