{"id":"CVE-2026-97412","state":"PUBLISHED","title":"pds_core: quiesce DMA before freeing resources","description":"In the Linux kernel, the following vulnerability has been resolved:\n\npds_core: quiesce DMA before freeing resources\n\npdsc_teardown() frees DMA buffers but does not disable bus mastering,\nleaving the device able to perform DMA after the buffers are freed.\nThis can lead to use-after-free if the device writes to freed memory.\n\nAdd pci_clear_master() to pdsc_teardown() to disable bus mastering\nbefore freeing resources, ensuring all DMA is quiesced.\n\nAdd pci_set_master() to pdsc_setup() to re-enable bus mastering,\nwhich is needed for the firmware recovery path since pdsc_teardown()\nnow disables it.","publishedAt":"2026-09-24T16:03:19.355Z","updatedAt":"2026-10-21T12:52:43.054Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"45d76f492938cdc27ddadc16e1e75103f4cfbf56","status":"affected","lessThan":"84fc3f30b87e06a11d1807cd385603522610ed40","versionType":"git"},{"version":"45d76f492938cdc27ddadc16e1e75103f4cfbf56","status":"affected","lessThan":"cc8beb70e70fc90e54efdbc1128cf7de799e6be4","versionType":"git"},{"version":"45d76f492938cdc27ddadc16e1e75103f4cfbf56","status":"affected","lessThan":"9eee6b90bee3df496ed9094d9e76d5e478d72d0a","versionType":"git"},{"version":"45d76f492938cdc27ddadc16e1e75103f4cfbf56","status":"affected","lessThan":"6443f4f20bdae726fe01cf5946fba9742a0ffda6","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/amd/pds_core/core.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.4","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.4","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.111","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.53","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/amd/pds_core/core.c"]}],"references":["https://git.kernel.org/stable/c/84fc3f30b87e06a11d1807cd385603522610ed40","https://git.kernel.org/stable/c/cc8beb70e70fc90e54efdbc1128cf7de799e6be4","https://git.kernel.org/stable/c/9eee6b90bee3df496ed9094d9e76d5e478d72d0a","https://git.kernel.org/stable/c/6443f4f20bdae726fe01cf5946fba9742a0ffda6"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/97xxx/CVE-2026-97412.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-97412","state":"PUBLISHED","datePublished":"2026-09-24T16:03:19.355Z","dateUpdated":"2026-10-21T12:52:43.054Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-24T14:53:16.867Z"},"containers":{"cna":{"title":"pds_core: quiesce DMA before freeing resources","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\npds_core: quiesce DMA before freeing resources\n\npdsc_teardown() frees DMA buffers but does not disable bus mastering,\nleaving the device able to perform DMA after the buffers are freed.\nThis can lead to use-after-free if the device writes to freed memory.\n\nAdd pci_clear_master() to pdsc_teardown() to disable bus mastering\nbefore freeing resources, ensuring all DMA is quiesced.\n\nAdd pci_set_master() to pdsc_setup() to re-enable bus mastering,\nwhich is needed for the firmware recovery path since pdsc_teardown()\nnow disables it."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"45d76f492938cdc27ddadc16e1e75103f4cfbf56","status":"affected","lessThan":"84fc3f30b87e06a11d1807cd385603522610ed40","versionType":"git"},{"version":"45d76f492938cdc27ddadc16e1e75103f4cfbf56","status":"affected","lessThan":"cc8beb70e70fc90e54efdbc1128cf7de799e6be4","versionType":"git"},{"version":"45d76f492938cdc27ddadc16e1e75103f4cfbf56","status":"affected","lessThan":"9eee6b90bee3df496ed9094d9e76d5e478d72d0a","versionType":"git"},{"version":"45d76f492938cdc27ddadc16e1e75103f4cfbf56","status":"affected","lessThan":"6443f4f20bdae726fe01cf5946fba9742a0ffda6","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/amd/pds_core/core.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.4","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.4","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.111","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.53","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/amd/pds_core/core.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/84fc3f30b87e06a11d1807cd385603522610ed40"},{"url":"https://git.kernel.org/stable/c/cc8beb70e70fc90e54efdbc1128cf7de799e6be4"},{"url":"https://git.kernel.org/stable/c/9eee6b90bee3df496ed9094d9e76d5e478d72d0a"},{"url":"https://git.kernel.org/stable/c/6443f4f20bdae726fe01cf5946fba9742a0ffda6"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-21T12:52:43.054Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.12.111"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.18.53"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}