cbcvebase.
CVE-2024-53232
published 2024-12-27

CVE-2024-53232: In the Linux kernel, the following vulnerability has been resolved: iommu/s390: Implement blocking domain This fixes a crash when surprise hot-unplugging a PCI…

PriorityP419medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.23%
13.8th percentile
In the Linux kernel, the following vulnerability has been resolved: iommu/s390: Implement blocking domain This fixes a crash when surprise hot-unplugging a PCI device. This crash happens because during hot-unplug __iommu_group_set_domain_nofail() attaching the default domain fails when the platform no longer recognizes the device as it has already been removed and we end up with a NULL domain pointer and UAF. This is exactly the case referred to in the second comment in __iommu_device_set_domain() and just as stated there if we can instead attach the blocking domain the UAF is prevented as this can handle the already removed device. Implement the blocking domain to use this handling. With this change, the crash is fixed but we still hit a warning attempting to change DMA ownership on a blocked device.

Affected

11 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.12.3-1 (forky)linux 6.12.3-1 (forky)
linuxlinux
linuxlinux>= c76c067e488ccd55734c3e750799caf2c5956db6 < 3be34fa1cdbf180c1a948cfededfdf2cdc4971993be34fa1cdbf180c1a948cfededfdf2cdc497199
linuxlinux>= c76c067e488ccd55734c3e750799caf2c5956db6 < bd89d94f3ea6fdaee983cbc69226a00b9bde6d59bd89d94f3ea6fdaee983cbc69226a00b9bde6d59
linuxlinux>= c76c067e488ccd55734c3e750799caf2c5956db6 < ecda483339a5151e3ca30d6b82691ef6f1d17912ecda483339a5151e3ca30d6b82691ef6f1d17912
linuxlinux_kernel>= 0 < 6.12.3-16.12.3-1
linuxlinux_kernel>= 0 < 6.12.3-16.12.3-1
linuxlinux_kernel>= 0 < 6.8.0-58.606.8.0-58.60
linuxlinux_kernel>= 0 < 6.11.0-18.186.11.0-18.18
linuxlinux_kernel>= 6.12 < 6.12.26.12.2
linuxlinux_kernel>= 6.7 < 6.11.116.11.11

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian5.5LOW
vendor_redhat5.5MEDIUM
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.