CVE-2026-90180
Published Sep 17, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: block: mtip32xx: synchronize ioctls with device removal The ioctl handlers only test REMOVE_PENDING before entering mtip_hw_ioctl(). Removal can set that bit immediately afterwards and free dd->port in mtip_hw_exit() while an ioctl still dereferences it. An already open block device can reach the handlers while del_gendisk() is in progress. Serialize both native and compat ioctls with removal. Set REMOVE_PENDING before taking the mutex so new callers fail after an in-flight ioctl has drained, and hold the mutex until the port has been torn down.
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References
Other References
https://git.kernel.org/stable/c/4609e0e0be709e974bec9b52c5022136d25e97d3
https://git.kernel.org/stable/c/521afbd936ac256b7531470b0b9aa96abf9cd853
https://git.kernel.org/stable/c/68940f841d013192086a0f6d7cfbac2cd079e228
https://git.kernel.org/stable/c/8283049aa5fcb4e84b2b2928b2888903bb8ee12e
https://git.kernel.org/stable/c/8a7799597bd683b6bc251fe2edfa9fd1db568a3a
https://git.kernel.org/stable/c/b389dc35a55713ac24a145741e76196fea1663bc
Frequently Asked Questions
What is CVE-2026-90180? +
In the Linux kernel, the following vulnerability has been resolved:
block: mtip32xx: synchronize ioctls with device removal
The ioctl handlers only test REMOVE_PENDING before entering
mtip_hw_ioctl(). Removal can set that bit immediately afterwards and free
dd->port in mtip_hw_exit() while an ioctl still dereferences it. An already
open block device can reach the handlers while del_gendisk() is in
progress.
Serialize both native and compat ioctls with removal. Set REMOVE_PENDING
before taking the mutex so new callers fail after an in-flight ioctl has
drained, and hold the mutex until the port has been torn down.
How do I check if I'm vulnerable to CVE-2026-90180? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.