CVE-2021-47325: fallo en Linux
iommu/arm-smmu: Fix arm_smmu_device refcount leak in address translation
Publicada el · Actualizada el
3Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackepss 0.2%
probabilidad de explotación
0.2%top 85% de las CVE
explotación observada
noninguna fuente lo reporta
In the Linux kernel, the following vulnerability has been resolved:
iommu/arm-smmu: Fix arm_smmu_device refcount leak in address translation
The reference counting issue happens in several exception handling paths
of arm_smmu_iova_to_phys_hard(). When those error scenarios occur, the
function forgets to decrease the refcount of "smmu" increased by
arm_smmu_rpm_get(), causing a refcount leak.
Fix this issue by jumping to "out" label when those error scenarios
occur.
Productos afectados
Linux · LinuxCVEs relacionadas — Linux
En el mismo producto, de las más peligrosas a las menos.
CVE-2024-53197HIGHALSA: usb-audio: Fix potential out-of-bound accesses for Extigy and Mbox devicesEPSS 4.1%KEVCVE-2026-31431HIGHcrypto: algif_aead - Revert to operating out-of-placeEPSS 3.4%KEVCVE-2024-53104HIGHmedia: uvcvideo: Skip parsing frames of type UVC_VS_UNDEFINED in uvc_parse_formatEPSS 3.4%KEVCVE-2025-39682CRITICALtls: fix handling of zero-length records on the rx_listEPSS 2.9%KEVCVE-2024-36971HIGHnet: fix __dst_negative_advice() raceEPSS 2.7%KEVCVE-2024-53150HIGHALSA: usb-audio: Fix out of bounds reads when finding clock sourcesEPSS 1.4%KEV
Referencias
https://git.kernel.org/stable/c/0f0c5ea09139777d90729d408b807021f2ea6492https://git.kernel.org/stable/c/43d1aaa1965f9b58035196dac49b1e1e6c9c25ebhttps://git.kernel.org/stable/c/5f9741a9a91f25c89e04b408cd61e3ab050ce24bhttps://git.kernel.org/stable/c/7c8f176d6a3fa18aa0f8875da6f7c672ed2a8554https://git.kernel.org/stable/c/b11220803ad14a2a880cc06d8e01fe2548cc85b0