cve-2024-39292
Vulnerability from cvelistv5
Published
2024-06-24 13:52
Modified
2024-12-19 09:06
Severity ?
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0c02d425a2fbe52643a5859a779db0329e7dddd4Mailing List, Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/31960d991e43c8d6dc07245f19fc13398e90ead2Mailing List, Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/351d1a64544944b44732f6a64ed65573b00b9e14Mailing List, Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/434a06c38ee1217a8baa0dd7c37cc85d50138fb0Mailing List, Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/66ea9a7c6824821476914bed21a476cd20094f33Mailing List, Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/73b8e21f76c7dda4905655d2e2c17dc5a73b87f1Mailing List, Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a0fbbd36c156b9f7b2276871d499c9943dfe5101Mailing List, Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dc1ff95602ee908fcd7d8acee7a0dadb61b1a0c0Mailing List, Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/0c02d425a2fbe52643a5859a779db0329e7dddd4Mailing List, Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/31960d991e43c8d6dc07245f19fc13398e90ead2Mailing List, Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/351d1a64544944b44732f6a64ed65573b00b9e14Mailing List, Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/434a06c38ee1217a8baa0dd7c37cc85d50138fb0Mailing List, Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/66ea9a7c6824821476914bed21a476cd20094f33Mailing List, Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/73b8e21f76c7dda4905655d2e2c17dc5a73b87f1Mailing List, Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a0fbbd36c156b9f7b2276871d499c9943dfe5101Mailing List, Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/dc1ff95602ee908fcd7d8acee7a0dadb61b1a0c0Mailing List, Patch
Impacted products
Vendor Product Version
Linux Linux Version: 2.6.23
Show details on NVD website

To clipboard 

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Si eso sucede, Register_winch_irq() agrega a esa lista un cabrestante que est\u00e1 programado para ser liberado (o que ya ha sido) liberado, causando p\u00e1nico m\u00e1s adelante en winch_cleanup(). Evite la ejecuci\u00f3n agregando el cabrestante a la lista winch_handlers antes de registrar la IRQ y retrocediendo si um_request_irq() 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}


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