269 lines
13 KiB
JSON
269 lines
13 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-2026-80827",
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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": "2026-08-26T14:34:25.795Z",
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"datePublished": "2026-09-04T15:54:31.111Z",
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"dateUpdated": "2026-10-19T08:44:19.753Z"
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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": "2026-10-19T08:44:19.753Z"
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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: serial: option: fix slab OOB read in interrupt URB callback\n\nThe interrupt URB buffer is allocated in setup_port_interrupt_in() based\non the endpoint's wMaxPacketSize:\n\n buffer_size = usb_endpoint_maxp(epd);\n port->interrupt_in_buffer = kmalloc(buffer_size, GFP_KERNEL);\n\nWhen a USB device declares wMaxPacketSize = 8 on its interrupt IN\nendpoint, the buffer is allocated from kmalloc-8 cache (exactly\n8 bytes).\n\nIf the device sends a short packet (actual_length < wMaxPacketSize),\nthe URB completes with status == 0 and the callback proceeds to read:\n\n data[sizeof(struct usb_ctrlrequest)]\n\nwhich evaluates to data[8], accessing 1 byte beyond the allocated 8-byte\nbuffer. This results in a slab out-of-bounds read.\n\nFix this by adding the missing bounds check: first verify that the\nactual length is large enough to contain the struct usb_ctrlrequest\nheader before accessing req_pkt->bRequestType and req_pkt->bRequest,\nand then verify that there is an additional byte for the modem signal\nstate before reading data[sizeof(struct usb_ctrlrequest)] inside the\nconditional. Use sizeof(*req_pkt) instead of sizeof(struct\nusb_ctrlrequest) for consistency.\n\n[ johan: use dev_err(); split signals declaration and initialisation ]"
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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/serial/option.c"
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],
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"versions": [
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{
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"version": "58cfe9113e485f7e04bd0eac4fc4251b330af501",
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"lessThan": "fbe60fd2abc8a5561f39719a41ad9a01b5d8e567",
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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": "58cfe9113e485f7e04bd0eac4fc4251b330af501",
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"lessThan": "94e5525697b9e91ddc4071129874120a50a4f342",
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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": "58cfe9113e485f7e04bd0eac4fc4251b330af501",
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"lessThan": "6b8cf5422c7e96ed5b22a8368eff663f3f98b8ec",
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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": "58cfe9113e485f7e04bd0eac4fc4251b330af501",
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"lessThan": "030e3a73d3c3aa67c44454649e984d6383cdb7d3",
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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": "58cfe9113e485f7e04bd0eac4fc4251b330af501",
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"lessThan": "060db7d48af1e650643c8b8319111a9ea2ce4486",
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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": "58cfe9113e485f7e04bd0eac4fc4251b330af501",
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"lessThan": "2ef5560387f2c0713cee975be2b24b281bd90f3e",
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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": "58cfe9113e485f7e04bd0eac4fc4251b330af501",
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"lessThan": "a72a13c83a652516a0e469d275b81d29a7429049",
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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": "58cfe9113e485f7e04bd0eac4fc4251b330af501",
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"lessThan": "d762aef4eba354066be21a5d88eb2066e282f4c9",
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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": "58cfe9113e485f7e04bd0eac4fc4251b330af501",
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"lessThan": "885d802f544ca7bfa8f3984d94233cce715bb6b3",
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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/serial/option.c"
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],
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"versions": [
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{
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"version": "2.6.12",
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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": "2.6.12",
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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": "5.10.269",
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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": "5.15.220",
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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": "6.1.187",
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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": "6.6.156",
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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": "6.12.108",
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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": "6.18.49",
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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": "7.1.13",
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"lessThanOrEqual": "7.1.*",
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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": "7.2.3",
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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": "2.6.12",
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"versionEndExcluding": "5.10.269"
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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": "2.6.12",
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"versionEndExcluding": "5.15.220"
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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": "2.6.12",
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"versionEndExcluding": "6.1.187"
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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": "2.6.12",
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"versionEndExcluding": "6.6.156"
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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": "2.6.12",
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"versionEndExcluding": "6.12.108"
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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": "2.6.12",
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"versionEndExcluding": "6.18.49"
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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": "2.6.12",
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"versionEndExcluding": "7.1.13"
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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": "2.6.12",
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"versionEndExcluding": "7.2.3"
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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": "2.6.12",
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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/fbe60fd2abc8a5561f39719a41ad9a01b5d8e567"
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},
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{
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"url": "https://git.kernel.org/stable/c/94e5525697b9e91ddc4071129874120a50a4f342"
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},
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{
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"url": "https://git.kernel.org/stable/c/6b8cf5422c7e96ed5b22a8368eff663f3f98b8ec"
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},
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{
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"url": "https://git.kernel.org/stable/c/030e3a73d3c3aa67c44454649e984d6383cdb7d3"
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},
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{
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"url": "https://git.kernel.org/stable/c/060db7d48af1e650643c8b8319111a9ea2ce4486"
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},
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{
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"url": "https://git.kernel.org/stable/c/2ef5560387f2c0713cee975be2b24b281bd90f3e"
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},
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{
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"url": "https://git.kernel.org/stable/c/a72a13c83a652516a0e469d275b81d29a7429049"
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},
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{
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"url": "https://git.kernel.org/stable/c/d762aef4eba354066be21a5d88eb2066e282f4c9"
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},
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{
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"url": "https://git.kernel.org/stable/c/885d802f544ca7bfa8f3984d94233cce715bb6b3"
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}
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],
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"title": "USB: serial: option: fix slab OOB read in interrupt URB callback",
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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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} |