CVE-2024-53094: RDMA/siw: Add sendpage_ok() check to disable MSG_SPLICE_PAGES
First published: Thu Nov 21 2024(Updated: )
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/20240530142417.146696-1-ofir.gal@volumez.com/ 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
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | <6.6.62 | |
| Linux Kernel | >=6.7<6.11.9 | |
| Linux Kernel | =6.12-rc1 | |
| Linux Kernel | =6.12-rc2 | |
| Linux Kernel | =6.12-rc3 | |
| debian/linux | <=5.10.223-1<=5.10.226-1<=6.1.123-1<=6.1.128-1 | 6.12.12-1 6.12.15-1 |
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Reference Links
- https://git.kernel.org/stable/c/3406bfc813a9bbd9c3055795e985f527b7852e8c
- https://git.kernel.org/stable/c/bb5738957d92c8603a90c9664d34236641c221b2
- https://git.kernel.org/stable/c/4e1e3dd88a4cedd5ccc1a3fc3d71e03b70a7a791
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-53094
- https://nvd.nist.gov/vuln/detail/CVE-2024-53094
- https://launchpad.net/bugs/cve/CVE-2024-53094
- https://security-tracker.debian.org/tracker/CVE-2024-53094
- https://ubuntu.com/security/CVE-2024-53094
- https://git.kernel.org/linus/4e1e3dd88a4cedd5ccc1a3fc3d71e03b70a7a791
Frequently Asked Questions
What is the severity of CVE-2024-53094?
CVE-2024-53094 has been rated with a moderate severity level due to its impact on the Linux kernel.
How do I fix CVE-2024-53094?
To fix CVE-2024-53094, update the Linux kernel to a version higher than 6.6.62 or within the safe versions outside the affected range.
Which versions of Linux Kernel are affected by CVE-2024-53094?
CVE-2024-53094 affects Linux kernel versions between 6.7 and 6.11.9, as well as specific release candidates 6.12-rc1, 6.12-rc2, and 6.12-rc3.
What is the nature of the vulnerability in CVE-2024-53094?
CVE-2024-53094 involves a warning during the use of ISER over SIW that relates to a slab page being improperly used in sendpage_ok().
Is CVE-2024-53094 related to RDMA operations?
Yes, CVE-2024-53094 is specifically related to Remote Direct Memory Access (RDMA) operations within the Linux kernel.
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