209 lines
10 KiB
JSON
209 lines
10 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2026-98020",
|
|
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "Linux",
|
|
"dateReserved": "2026-09-25T10:19:56.069Z",
|
|
"datePublished": "2026-09-25T10:23:40.900Z",
|
|
"dateUpdated": "2026-10-19T09:12:25.476Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"providerMetadata": {
|
|
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"shortName": "Linux",
|
|
"dateUpdated": "2026-10-19T09:12:25.476Z"
|
|
},
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\npds_core: fix cmd_regs access racing BAR unmap on reset\n\npdsc_reset_prepare() and pdsc_reset_done()'s pdsc_map_bars() error path\nclear/iounmap cmd_regs without devcmd_lock, and\npdsc_legacy_firmware_update()'s download loop derefs cmd_regs after\ndropping and retaking the lock without re-checking. An FLR concurrent\nwith a devlink flash can unmap cmd_regs under an in-flight devcmd,\ncausing a NULL deref or a write to unmapped MMIO.\n\nTake devcmd_lock across the BAR unmap/remap, and re-check cmd_regs in\nthe download loop. Only the PF maps cmd_regs and runs devcmd, so skip\nthe unmap on a VF, as pdsc_remove() and pdsc_reset_done() already do.\n\nA reset that completes entirely within the unlocked window is not a\ncorrectness problem for the image: the device clears its update session,\nso a resumed download is rejected, and it verifies the staged image\nbefore writing a flash slot, reporting PDS_RC_BAD_FW rather than\nactivating it.\n\npdsc_unmap_bars() also clears info_regs, intr_status and intr_ctrl. The\ninterrupt and start/stop readers of those are quiesced before the unmap\nby pdsc_fw_down(), which frees the interrupts and tears down the queues.\nThe debugfs readers are not, since those files outlive a reset; that is\npre-existing and out of scope here."
|
|
}
|
|
],
|
|
"affected": [
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "unaffected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"drivers/net/ethernet/amd/pds_core/fw.c",
|
|
"drivers/net/ethernet/amd/pds_core/main.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "f6ec6ac9432941ec85a2221c91b1ecfc85680d89",
|
|
"lessThan": "0bf9f3bae3c4b1eadb7a2bf63350333db7dac0d9",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "e96094c1d11cce4deb5da3c0500d49041ab845b8",
|
|
"lessThan": "2cc697565fd19b5ba2d100cdd4a20dd6d263abc2",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "e96094c1d11cce4deb5da3c0500d49041ab845b8",
|
|
"lessThan": "fa31bd14c5042c6315bb2182c963f03ca6e79ca4",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "e96094c1d11cce4deb5da3c0500d49041ab845b8",
|
|
"lessThan": "09f831bfe39de5b8026fefb3d106b5cc93272170",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "e96094c1d11cce4deb5da3c0500d49041ab845b8",
|
|
"lessThan": "7980325b2f71e3f65c1323c39792e2455da6fab6",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "692488941283d72362274620b9abd28109fc459f",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "6.6.16",
|
|
"lessThan": "6.6.158",
|
|
"status": "affected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.7.4",
|
|
"lessThan": "6.8",
|
|
"status": "affected",
|
|
"versionType": "semver"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "affected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"drivers/net/ethernet/amd/pds_core/fw.c",
|
|
"drivers/net/ethernet/amd/pds_core/main.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "6.8",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "0",
|
|
"lessThan": "6.8",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.6.158",
|
|
"lessThanOrEqual": "6.6.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.12.111",
|
|
"lessThanOrEqual": "6.12.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.18.53",
|
|
"lessThanOrEqual": "6.18.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "7.2.7",
|
|
"lessThanOrEqual": "7.2.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "7.3",
|
|
"lessThanOrEqual": "*",
|
|
"status": "unaffected",
|
|
"versionType": "original_commit_for_fix"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"cpeApplicability": [
|
|
{
|
|
"nodes": [
|
|
{
|
|
"operator": "OR",
|
|
"negate": false,
|
|
"cpeMatch": [
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "6.6.16",
|
|
"versionEndExcluding": "6.6.158"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "6.8",
|
|
"versionEndExcluding": "6.12.111"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "6.8",
|
|
"versionEndExcluding": "6.18.53"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "6.8",
|
|
"versionEndExcluding": "7.2.7"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "6.8",
|
|
"versionEndExcluding": "7.3"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "6.7.4"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/0bf9f3bae3c4b1eadb7a2bf63350333db7dac0d9"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/2cc697565fd19b5ba2d100cdd4a20dd6d263abc2"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/fa31bd14c5042c6315bb2182c963f03ca6e79ca4"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/09f831bfe39de5b8026fefb3d106b5cc93272170"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/7980325b2f71e3f65c1323c39792e2455da6fab6"
|
|
}
|
|
],
|
|
"title": "pds_core: fix cmd_regs access racing BAR unmap on reset",
|
|
"x_generator": {
|
|
"engine": "bippy-1.2.0"
|
|
}
|
|
}
|
|
}
|
|
} |