278 lines
14 KiB
JSON
278 lines
14 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-46022",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-05-13T15:03:33.092Z",
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"datePublished": "2026-05-27T12:56:26.791Z",
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"dateUpdated": "2026-10-15T01:20:00.194Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-06-14T17:48:35.855Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmisc: ibmasm: fix OOB MMIO read in ibmasm_handle_mouse_interrupt()\n\nibmasm_handle_mouse_interrupt() performs an out-of-bounds MMIO read\nwhen the queue reader or writer index from hardware exceeds\nREMOTE_QUEUE_SIZE (60).\n\nA compromised service processor can trigger this by writing an\nout-of-range value to the reader or writer MMIO register before\nasserting an interrupt. Since writer is re-read from hardware on\nevery loop iteration, it can also be set to an out-of-range value\nafter the loop has already started.\n\nThe root cause is that get_queue_reader() and get_queue_writer() return\nraw readl() values that are passed directly into get_queue_entry(),\nwhich computes:\n\n queue_begin + reader * sizeof(struct remote_input)\n\nwith no bounds check. This unchecked MMIO address is then passed to\nmemcpy_fromio(), reading 8 bytes from unintended device registers.\nFor sufficiently large values the address falls outside the PCI BAR\nmapping entirely, triggering a machine check exception.\n\nFix by checking both indices against REMOTE_QUEUE_SIZE at the top of\nthe loop body, before any call to get_queue_entry(). On an out-of-range\nvalue, reset the reader register to 0 via set_queue_reader() before\nbreaking, so that normal queue operation can resume if the corrupted\nhardware state is transient."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/misc/ibmasm/remote.c"
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],
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"versions": [
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{
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"version": "278d72ae8803ffcd16070c95fe1d53f4466dc741",
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"lessThan": "6f6ecc9153df176e956d0664b56f93080b0a45f0",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "278d72ae8803ffcd16070c95fe1d53f4466dc741",
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"lessThan": "bac8643486f854dd53af9b23aea7dbbd9b7c1865",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "278d72ae8803ffcd16070c95fe1d53f4466dc741",
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"lessThan": "f7e5b4eefd7be3e09f8bd5fee63ed478fd7446ab",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "278d72ae8803ffcd16070c95fe1d53f4466dc741",
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"lessThan": "fc7e9a74e32299d7e93e178ca482a0b59ef1595b",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "278d72ae8803ffcd16070c95fe1d53f4466dc741",
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"lessThan": "07c4f18b303106e6b24492c12b95d48a4b985841",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "278d72ae8803ffcd16070c95fe1d53f4466dc741",
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"lessThan": "22a16d3eafee92a165c756081587c95850127107",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "278d72ae8803ffcd16070c95fe1d53f4466dc741",
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"lessThan": "1ca75f6b74ec7f685464e5745ecfcf3a76d284e9",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "278d72ae8803ffcd16070c95fe1d53f4466dc741",
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"lessThan": "4b6e6ead556734bdc14024c5f837132b1e7a4b84",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/misc/ibmasm/remote.c"
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],
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"versions": [
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{
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"version": "2.6.13",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "2.6.13",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.258",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.209",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.175",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.140",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.86",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.27",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.0.4",
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"lessThanOrEqual": "7.0.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.1",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.13",
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"versionEndExcluding": "5.10.258"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.13",
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"versionEndExcluding": "5.15.209"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.13",
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"versionEndExcluding": "6.1.175"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.13",
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"versionEndExcluding": "6.6.140"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.13",
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"versionEndExcluding": "6.12.86"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.13",
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"versionEndExcluding": "6.18.27"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.13",
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"versionEndExcluding": "7.0.4"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.13",
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"versionEndExcluding": "7.1"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/6f6ecc9153df176e956d0664b56f93080b0a45f0"
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},
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{
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"url": "https://git.kernel.org/stable/c/bac8643486f854dd53af9b23aea7dbbd9b7c1865"
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},
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{
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"url": "https://git.kernel.org/stable/c/f7e5b4eefd7be3e09f8bd5fee63ed478fd7446ab"
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},
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{
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"url": "https://git.kernel.org/stable/c/fc7e9a74e32299d7e93e178ca482a0b59ef1595b"
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},
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{
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"url": "https://git.kernel.org/stable/c/07c4f18b303106e6b24492c12b95d48a4b985841"
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},
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{
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"url": "https://git.kernel.org/stable/c/22a16d3eafee92a165c756081587c95850127107"
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},
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{
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"url": "https://git.kernel.org/stable/c/1ca75f6b74ec7f685464e5745ecfcf3a76d284e9"
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},
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{
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"url": "https://git.kernel.org/stable/c/4b6e6ead556734bdc14024c5f837132b1e7a4b84"
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}
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],
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"title": "misc: ibmasm: fix OOB MMIO read in ibmasm_handle_mouse_interrupt()",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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},
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"adp": [
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{
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"x_adpType": "supplier",
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"providerMetadata": {
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"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
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"shortName": "siemens-SADP",
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"dateUpdated": "2026-10-15T01:20:00.194Z"
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},
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"affected": [
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{
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"vendor": "Siemens",
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"product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem",
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"versions": [
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{
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"status": "affected",
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"version": "0",
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"lessThan": "*",
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"versionType": "custom"
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}
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],
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"defaultStatus": "unknown"
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}
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],
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"references": [
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{
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"url": "https://cert-portal.siemens.com/productcert/html/ssa-784472.html"
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}
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]
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}
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]
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}
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} |