CVE-2026-97412

In the Linux kernel, the following vulnerability has been resolved: pds_core: quiesce DMA before freeing resources pdsc_teardown() frees DMA buffers but does not disable bus mastering, leaving the device able to perform DMA after the buffers are freed. This can lead to use-after-free if the device writes to freed memory. Add pci_clear_master() to pdsc_teardown() to disable bus mastering before freeing resources, ensuring all DMA is quiesced. Add pci_set_master() to pdsc_setup() to re-enable bus mastering, which is needed for the firmware recovery path since pdsc_teardown() now disables it.

• git.kernel.orghttps://git.kernel.org/stable/c/6443f4f20bdae726fe01cf5946fba9742a0ffda6
• git.kernel.orghttps://git.kernel.org/stable/c/9eee6b90bee3df496ed9094d9e76d5e478d72d0a
• git.kernel.orghttps://git.kernel.org/stable/c/cc8beb70e70fc90e54efdbc1128cf7de799e6be4

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