206 lines
10 KiB
JSON
206 lines
10 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-2026-31412",
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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": "2026-03-09T15:48:24.087Z",
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"datePublished": "2026-04-10T10:35:05.796Z",
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"dateUpdated": "2026-05-11T22:08:12.685Z"
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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": "2026-05-11T22:08:12.685Z"
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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: gadget: f_mass_storage: Fix potential integer overflow in check_command_size_in_blocks()\n\nThe `check_command_size_in_blocks()` function calculates the data size\nin bytes by left shifting `common->data_size_from_cmnd` by the block\nsize (`common->curlun->blkbits`). However, it does not validate whether\nthis shift operation will cause an integer overflow.\n\nInitially, the block size is set up in `fsg_lun_open()` , and the\n`common->data_size_from_cmnd` is set up in `do_scsi_command()`. During\ninitialization, there is no integer overflow check for the interaction\nbetween two variables.\n\nSo if a malicious USB host sends a SCSI READ or WRITE command\nrequesting a large amount of data (`common->data_size_from_cmnd`), the\nleft shift operation can wrap around. This results in a truncated data\nsize, which can bypass boundary checks and potentially lead to memory\ncorruption or out-of-bounds accesses.\n\nFix this by using the check_shl_overflow() macro to safely perform the\nshift and catch any overflows."
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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/gadget/function/f_mass_storage.c"
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],
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"versions": [
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{
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"version": "144974e7f9e32b53b02f6c8632be45d8f43d6ab5",
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"lessThan": "91817ad5452defe69bc7bc0e355f0ed5d01125cc",
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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": "144974e7f9e32b53b02f6c8632be45d8f43d6ab5",
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"lessThan": "ce0caaed5940162780c5c223b8ae54968a5f059b",
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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": "144974e7f9e32b53b02f6c8632be45d8f43d6ab5",
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"lessThan": "228b37936376143f4b60cc6828663f6eaceb81b5",
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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": "144974e7f9e32b53b02f6c8632be45d8f43d6ab5",
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"lessThan": "3428dc5520c811e66622b2f5fa43341bf9a1f8b3",
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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": "144974e7f9e32b53b02f6c8632be45d8f43d6ab5",
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"lessThan": "387ebb0453b99d71491419a5dc4ab4bee0cacbac",
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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": "144974e7f9e32b53b02f6c8632be45d8f43d6ab5",
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"lessThan": "8479891d1f04a8ce55366fe4ca361ccdb96f02e1",
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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/gadget/function/f_mass_storage.c"
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],
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"versions": [
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{
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"version": "3.3",
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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": "3.3",
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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": "6.1.167",
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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": "6.6.130",
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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": "6.12.78",
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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": "6.18.19",
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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": "6.19.9",
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"lessThanOrEqual": "6.19.*",
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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",
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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": "3.3",
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"versionEndExcluding": "6.1.167"
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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": "3.3",
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"versionEndExcluding": "6.6.130"
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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": "3.3",
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"versionEndExcluding": "6.12.78"
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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": "3.3",
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"versionEndExcluding": "6.18.19"
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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": "3.3",
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"versionEndExcluding": "6.19.9"
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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": "3.3",
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"versionEndExcluding": "7.0"
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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/91817ad5452defe69bc7bc0e355f0ed5d01125cc"
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},
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{
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"url": "https://git.kernel.org/stable/c/ce0caaed5940162780c5c223b8ae54968a5f059b"
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},
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{
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"url": "https://git.kernel.org/stable/c/228b37936376143f4b60cc6828663f6eaceb81b5"
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},
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{
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"url": "https://git.kernel.org/stable/c/3428dc5520c811e66622b2f5fa43341bf9a1f8b3"
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},
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{
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"url": "https://git.kernel.org/stable/c/387ebb0453b99d71491419a5dc4ab4bee0cacbac"
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},
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{
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"url": "https://git.kernel.org/stable/c/8479891d1f04a8ce55366fe4ca361ccdb96f02e1"
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}
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],
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"title": "usb: gadget: f_mass_storage: Fix potential integer overflow in check_command_size_in_blocks()",
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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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} |