122 lines
5.9 KiB
JSON
122 lines
5.9 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-2025-38682",
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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": "2025-04-16T04:51:24.031Z",
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"datePublished": "2025-09-04T15:32:37.403Z",
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"dateUpdated": "2026-05-11T21:32:56.493Z"
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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": "2026-05-11T21:32:56.493Z"
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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\ni2c: core: Fix double-free of fwnode in i2c_unregister_device()\n\nBefore commit df6d7277e552 (\"i2c: core: Do not dereference fwnode in struct\ndevice\"), i2c_unregister_device() only called fwnode_handle_put() on\nof_node-s in the form of calling of_node_put(client->dev.of_node).\n\nBut after this commit the i2c_client's fwnode now unconditionally gets\nfwnode_handle_put() on it.\n\nWhen the i2c_client has no primary (ACPI / OF) fwnode but it does have\na software fwnode, the software-node will be the primary node and\nfwnode_handle_put() will put() it.\n\nBut for the software fwnode device_remove_software_node() will also put()\nit leading to a double free:\n\n[ 82.665598] ------------[ cut here ]------------\n[ 82.665609] refcount_t: underflow; use-after-free.\n[ 82.665808] WARNING: CPU: 3 PID: 1502 at lib/refcount.c:28 refcount_warn_saturate+0xba/0x11\n...\n[ 82.666830] RIP: 0010:refcount_warn_saturate+0xba/0x110\n...\n[ 82.666962] <TASK>\n[ 82.666971] i2c_unregister_device+0x60/0x90\n\nFix this by not calling fwnode_handle_put() when the primary fwnode is\na software-node."
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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/i2c/i2c-core-base.c"
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],
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"versions": [
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{
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"version": "df6d7277e5525d6cce63127dd93ebec4c6354fa0",
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"lessThan": "ffe02f7c4e36090154646612e67d331832f92037",
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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": "df6d7277e5525d6cce63127dd93ebec4c6354fa0",
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"lessThan": "1c24e5fc0c7096e00c202a6a3e0c342c1afb47c2",
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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/i2c/i2c-core-base.c"
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],
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"versions": [
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{
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"version": "6.16",
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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": "6.16",
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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": "6.16.2",
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"lessThanOrEqual": "6.16.*",
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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": "6.17",
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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": "6.16",
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"versionEndExcluding": "6.16.2"
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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": "6.16",
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"versionEndExcluding": "6.17"
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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/ffe02f7c4e36090154646612e67d331832f92037"
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},
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{
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"url": "https://git.kernel.org/stable/c/1c24e5fc0c7096e00c202a6a3e0c342c1afb47c2"
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}
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],
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"title": "i2c: core: Fix double-free of fwnode in i2c_unregister_device()",
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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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} |