In the Linux kernel, the following vulnerability has been resolved:
media: uvcvideo: Fix crash during unbind if gpio unit is in use
We used the wrong device for the device managed functions. We used the
usb device, when we should be using the interface device.
If we unbind the driver from the usb interface, the cleanup functions
are never called. In our case, the IRQ is never disabled.
If an IRQ is triggered, it will try to access memory sections that are
already free, causing an OOPS.
We cannot use the function devm_request_threaded_irq here. The devm_*
clean functions may be called after the main structure is released by
uvc_delete.
Luckily this bug has small impact, as it is only affected by devices
with gpio units and the user has to unbind the device, a disconnect will
not trigger this error.
CVSS
7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
2886477ff98740cc3333cf785e4de0b1ff3d7a28 builds before 0fdd7cc593385e46e92e180b71e264fc9c195298; 2886477ff98740cc3333cf785e4de0b1ff3d7a28 builds before 3c00e94d00ca079bef7906d6f39d1091bccfedd3; 2886477ff98740cc3333cf785e4de0b1ff3d7a28 builds before 0b5e0445bc8384c18bd35cb9fe87f6258c6271d9; from 2886477ff98740cc3333cf785e4de0b1ff3d7a28 before d2eac8b14ac690aa73052aa6d4ba69005715367e; 2886477ff98740cc3333cf785e4de0b1ff3d7a28 builds before 5d2e65cbe53d0141ed095cf31c2dcf3d8668c11d; from 2886477ff98740cc3333cf785e4de0b1ff3d7a28 before a9ea1a3d88b7947ce8cadb2afceee7a54872bbc5
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.
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