CVE-2024-39292
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.
Does this matter?
Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.24% probability · 15th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-415
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.