GHSA-VH7W-PF8M-646H
Vulnerability from github – Published: 2026-09-24 18:31 – Updated: 2026-09-24 18:31In 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.
{
"affected": [],
"aliases": [
"CVE-2026-97412"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-24T17:17:18Z",
"severity": null
},
"details": "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.",
"id": "GHSA-vh7w-pf8m-646h",
"modified": "2026-09-24T18:31:31Z",
"published": "2026-09-24T18:31:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-97412"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6443f4f20bdae726fe01cf5946fba9742a0ffda6"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9eee6b90bee3df496ed9094d9e76d5e478d72d0a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/cc8beb70e70fc90e54efdbc1128cf7de799e6be4"
}
],
"schema_version": "1.4.0",
"severity": []
}
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