248 lines
12 KiB
JSON
248 lines
12 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-2026-98771",
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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": "2026-09-25T10:25:14.369Z",
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"datePublished": "2026-10-18T15:48:07.367Z",
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"dateUpdated": "2026-10-30T12:39:39.761Z"
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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": "2026-10-30T12:39:39.761Z"
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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\nusb: storage: sierra_ms: reject short SWoC info transfers\n\nsierra_get_swoc_info() requests sizeof(struct swoc_info) (60) bytes\nfrom the device via usb_control_msg(), but its callers only treat a\nnegative return value as failure. A device that answers the\nvendor-specific GetSwocInfo request with a short IN transfer is\ntherefore accepted, leaving the tail of the freshly allocated\n(kmalloc(), non-zeroing) swoc_info buffer uninitialized.\n\ntruinst_show() subsequently prints swocInfo->rev, swocInfo->LinuxSKU\nand swocInfo->LinuxVer from that buffer into the world-readable\n(0444) \"truinst\" sysfs attribute. An emulated/malicious USB device\n(VID 0x1199, PID 0x0fff) can exploit this to disclose up to 5 bytes\nof stale kernel heap memory (kmalloc-64) to unprivileged userspace,\nonce per sysfs read, indefinitely. On kernels built without\ninit_on_alloc this leaks recently freed heap contents.\n\nOnly accept the transfer when the full structure was received.\nsierra_ms_init() already retries failed queries, so well-behaved\ndevices are unaffected."
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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/usb/storage/sierra_ms.c"
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],
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"versions": [
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{
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"version": "32fe5e393455d87db4988af03915634304870fb4",
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"lessThan": "353ca2623104a3baf5642c3ea31569df04ce4aaf",
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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": "32fe5e393455d87db4988af03915634304870fb4",
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"lessThan": "799810166646bcf9dc5a4e77bc4b0bdf6bc443f2",
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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": "32fe5e393455d87db4988af03915634304870fb4",
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"lessThan": "411da2ec8c62bfa39407e5a20d659b973b3cf311",
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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": "32fe5e393455d87db4988af03915634304870fb4",
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"lessThan": "4faaad69f18332246bbd4ca41718beb2a305bb72",
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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": "32fe5e393455d87db4988af03915634304870fb4",
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"lessThan": "c85e8331d298b8f1dee8fe63718e76435cec7133",
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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": "32fe5e393455d87db4988af03915634304870fb4",
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"lessThan": "e2d62928f2666a2964a23b1d39e6e762f0628d7b",
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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": "32fe5e393455d87db4988af03915634304870fb4",
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"lessThan": "db9d3be156baca6ef80ae5d93acfeb85c61a74dd",
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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": "32fe5e393455d87db4988af03915634304870fb4",
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"lessThan": "8a0200d14acd9db388b85cd016e68a4e60d900ec",
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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/usb/storage/sierra_ms.c"
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],
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"versions": [
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{
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"version": "2.6.27",
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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": "2.6.27",
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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": "5.10.273",
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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": "5.15.224",
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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": "6.1.191",
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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": "6.6.160",
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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": "6.12.113",
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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": "6.18.56",
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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": "7.2.10",
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"lessThanOrEqual": "7.2.*",
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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": "7.3",
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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": "2.6.27",
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"versionEndExcluding": "5.10.273"
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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": "2.6.27",
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"versionEndExcluding": "5.15.224"
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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": "2.6.27",
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"versionEndExcluding": "6.1.191"
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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": "2.6.27",
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"versionEndExcluding": "6.6.160"
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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": "2.6.27",
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"versionEndExcluding": "6.12.113"
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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": "2.6.27",
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"versionEndExcluding": "6.18.56"
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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": "2.6.27",
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"versionEndExcluding": "7.2.10"
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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": "2.6.27",
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"versionEndExcluding": "7.3"
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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/353ca2623104a3baf5642c3ea31569df04ce4aaf"
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},
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{
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"url": "https://git.kernel.org/stable/c/799810166646bcf9dc5a4e77bc4b0bdf6bc443f2"
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},
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{
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"url": "https://git.kernel.org/stable/c/411da2ec8c62bfa39407e5a20d659b973b3cf311"
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},
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{
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"url": "https://git.kernel.org/stable/c/4faaad69f18332246bbd4ca41718beb2a305bb72"
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},
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{
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"url": "https://git.kernel.org/stable/c/c85e8331d298b8f1dee8fe63718e76435cec7133"
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},
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{
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"url": "https://git.kernel.org/stable/c/e2d62928f2666a2964a23b1d39e6e762f0628d7b"
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},
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{
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"url": "https://git.kernel.org/stable/c/db9d3be156baca6ef80ae5d93acfeb85c61a74dd"
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},
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{
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"url": "https://git.kernel.org/stable/c/8a0200d14acd9db388b85cd016e68a4e60d900ec"
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}
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],
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"title": "usb: storage: sierra_ms: reject short SWoC info transfers",
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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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}
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} |