Description
In the Linux kernel, the following vulnerability has been resolved:
um: Add winch to winch_handlers before registering winch IRQ
Registering a winch IRQ is racy, an interrupt may occur before the winch is added to the winch_handlers list.
If that happens, register_winch_irq() adds to that list a winch that is scheduled to be (or has already been) freed, causing a panic later in winch_cleanup().
Avoid the race by adding the winch to the winch_handlers list before registering the IRQ, and rolling back if um_request_irq() fails.
Metrics
CVSS 3.1 5.5/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 42a359e31a0e438b5b978a8f0fecdbd3c86bb033, < 66ea9a7c6824821476914bed21a476cd20094f33; >= 42a359e31a0e438b5b978a8f0fecdbd3c86bb033, < dc1ff95602ee908fcd7d8acee7a0dadb61b1a0c0; >= 42a359e31a0e438b5b978a8f0fecdbd3c86bb033, < 351d1a64544944b44732f6a64ed65573b00b9e14; >= 42a359e31a0e438b5b978a8f0fecdbd3c86bb033, < 31960d991e43c8d6dc07245f19fc13398e90ead2; >= 42a359e31a0e438b5b978a8f0fecdbd3c86bb033, < 0c02d425a2fbe52643a5859a779db0329e7dddd4; >= 42a359e31a0e438b5b978a8f0fecdbd3c86bb033, < 434a06c38ee1217a8baa0dd7c37cc85d50138fb0; >= 42a359e31a0e438b5b978a8f0fecdbd3c86bb033, < 73b8e21f76c7dda4905655d2e2c17dc5a73b87f1; >= 42a359e31a0e438b5b978a8f0fecdbd3c86bb033, < a0fbbd36c156b9f7b2276871d499c9943dfe5101 |
| Linux | Linux | 2.6.23 |
| Siemens | RUGGEDCOM RST2428P | < V3.1 |
| Siemens | SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family | — |
| Siemens | SCALANCE XCM-/XRM-/XCH-/XRH-300 family | < V3.1 |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP | >= V3.1.0, < V3.1.5 |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP | >= V3.1.0, < V3.1.5 |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP | >= V3.1.0, < V3.1.5 |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP | >= V3.1.0, < V3.1.5 |
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP | >= V3.1.0, < V3.1.5 |
References
- https://git.kernel.org/stable/c/0c02d425a2fbe52643a5859a779db0329e7dddd4Mailing List, Patch
- https://git.kernel.org/stable/c/31960d991e43c8d6dc07245f19fc13398e90ead2Mailing List, Patch
- https://git.kernel.org/stable/c/351d1a64544944b44732f6a64ed65573b00b9e14Mailing List, Patch
- https://git.kernel.org/stable/c/434a06c38ee1217a8baa0dd7c37cc85d50138fb0Mailing List, Patch
- https://git.kernel.org/stable/c/66ea9a7c6824821476914bed21a476cd20094f33Mailing List, Patch
- https://git.kernel.org/stable/c/73b8e21f76c7dda4905655d2e2c17dc5a73b87f1Mailing List, Patch
- https://git.kernel.org/stable/c/a0fbbd36c156b9f7b2276871d499c9943dfe5101Mailing List, Patch
- https://git.kernel.org/stable/c/dc1ff95602ee908fcd7d8acee7a0dadb61b1a0c0Mailing List, Patch
- https://git.kernel.org/stable/c/0c02d425a2fbe52643a5859a779db0329e7dddd4Mailing List, Patch
- https://git.kernel.org/stable/c/31960d991e43c8d6dc07245f19fc13398e90ead2Mailing List, Patch
- https://git.kernel.org/stable/c/351d1a64544944b44732f6a64ed65573b00b9e14Mailing List, Patch
- https://git.kernel.org/stable/c/434a06c38ee1217a8baa0dd7c37cc85d50138fb0Mailing List, Patch
- https://git.kernel.org/stable/c/66ea9a7c6824821476914bed21a476cd20094f33Mailing List, Patch
- https://git.kernel.org/stable/c/73b8e21f76c7dda4905655d2e2c17dc5a73b87f1Mailing List, Patch
- https://git.kernel.org/stable/c/a0fbbd36c156b9f7b2276871d499c9943dfe5101Mailing List, Patch
- https://git.kernel.org/stable/c/dc1ff95602ee908fcd7d8acee7a0dadb61b1a0c0Mailing List, Patch
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://cert-portal.siemens.com/productcert/html/ssa-613116.html
Timeline
- Published
- Jun 24, 2024
- Last modified
- Oct 15, 2026
- NVD status
- Modified