CVE-2026-74345
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved:
RDMA/siw: Fix endpoint/socket association handling
Disassociating a socket from an endpoint via siw_socket_disassoc() may release the last reference on that endpoint and free it. Therefore, don't clear the endpoints socket pointer after calling that function, but within.
This fixes a:
BUG: KASAN: slab-use-after-free in siw_cm_work_handler (drivers/infiniband/sw/siw/siw_cm.c:1053 drivers/infiniband/sw/siw/siw_cm.c:1075)
which occurred after processing a malformed MPA request during connection establishment, causing the new endpoint to be closed.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 6c52fdc244b5ccc468006fd65a504d4ee33743c7 < b28d513393f81e2de00f82970487a9d001557e4e | affected |
| Linux | Linux | 6c52fdc244b5ccc468006fd65a504d4ee33743c7 < f6183983ce1ff254d629a333739082b39d7c5eb6 | affected |
| Linux | Linux | 6c52fdc244b5ccc468006fd65a504d4ee33743c7 < b6cf763eee0a932792bef64ceaca568d324192fc | affected |
| Linux | Linux | 6c52fdc244b5ccc468006fd65a504d4ee33743c7 < ea4f6f6c53577fb3f05dbd78b15e586772d49831 | affected |
| Linux | Linux | 5.3 | affected |
| Linux | Linux | 0 < 5.3 | unaffected |
| Linux | Linux | 6.12.97 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.40 <= 6.18.* | unaffected |
| Linux | Linux | 7.1.5 <= 7.1.* | unaffected |
| Linux | Linux | 7.2 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/b28d513393f81e2de00f82970487a9d001557e4e
- https://git.kernel.org/stable/c/f6183983ce1ff254d629a333739082b39d7c5eb6
- https://git.kernel.org/stable/c/b6cf763eee0a932792bef64ceaca568d324192fc
- https://git.kernel.org/stable/c/ea4f6f6c53577fb3f05dbd78b15e586772d49831
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