240 lines
12 KiB
JSON
240 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-2025-38632",
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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": "2025-04-16T04:51:24.029Z",
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"datePublished": "2025-08-22T16:00:40.423Z",
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"dateUpdated": "2026-11-05T21:12:49.802Z"
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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": "2026-10-30T12:22:09.468Z"
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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\npinmux: fix race causing mux_owner NULL with active mux_usecount\n\ncommit 5a3e85c3c397 (\"pinmux: Use sequential access to access\ndesc->pinmux data\") tried to address the issue when two client of the\nsame gpio calls pinctrl_select_state() for the same functionality, was\nresulting in NULL pointer issue while accessing desc->mux_owner.\nHowever, issue was not completely fixed due to the way it was handled\nand it can still result in the same NULL pointer.\n\nThe issue occurs due to the following interleaving:\n\n cpu0 (process A) cpu1 (process B)\n\n pin_request() { pin_free() {\n\n mutex_lock()\n desc->mux_usecount--; //becomes 0\n ..\n mutex_unlock()\n\n mutex_lock(desc->mux)\n desc->mux_usecount++; // becomes 1\n desc->mux_owner = owner;\n mutex_unlock(desc->mux)\n\n mutex_lock(desc->mux)\n desc->mux_owner = NULL;\n mutex_unlock(desc->mux)\n\nThis sequence leads to a state where the pin appears to be in use\n(`mux_usecount == 1`) but has no owner (`mux_owner == NULL`), which can\ncause NULL pointer on next pin_request on the same pin.\n\nEnsure that updates to mux_usecount and mux_owner are performed\natomically under the same lock. Only clear mux_owner when mux_usecount\nreaches zero and no new owner has been assigned."
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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/pinctrl/pinmux.c"
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],
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"versions": [
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{
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"version": "d25e45dcf8e32062f7935e4ba154869043812ab6",
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"lessThan": "8434dec94e73cad527341d6280895191d949a702",
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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": "2da32aed4a97ca1d70fb8b77926f72f30ce5fb4b",
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"lessThan": "9b2a3e7189028aa7c4d53a84364f2ea9fb209787",
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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": "c11e2ec9a780f54982a187ee10ffd1b810715c85",
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"lessThan": "9ea3f6b9a67be3476e331ce51cac316c2614a564",
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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": "5a3e85c3c397c781393ea5fb2f45b1f60f8a4e6e",
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"lessThan": "b7bd6e3971eb7f0e34d2fdce1b18b08094e0c804",
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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": "5a3e85c3c397c781393ea5fb2f45b1f60f8a4e6e",
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"lessThan": "22b585cbd67d14df3b91529d1b990661c300faa9",
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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": "5a3e85c3c397c781393ea5fb2f45b1f60f8a4e6e",
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"lessThan": "0b075c011032f88d1cfde3b45d6dcf08b44140eb",
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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": "6.6.66",
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"lessThan": "6.6.102",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "6.12.5",
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"lessThan": "6.12.42",
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"status": "affected",
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"versionType": "semver"
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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/pinctrl/pinmux.c"
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],
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"versions": [
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{
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"version": "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": "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": "6.6.102",
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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": "6.12.42",
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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": "6.15.10",
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"lessThanOrEqual": "6.15.*",
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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": "6.16.1",
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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": "6.6.66",
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"versionEndExcluding": "6.6.102"
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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": "6.12.5",
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"versionEndExcluding": "6.12.42"
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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": "6.13",
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"versionEndExcluding": "6.15.10"
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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": "6.13",
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"versionEndExcluding": "6.16.1"
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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": "6.13",
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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/8434dec94e73cad527341d6280895191d949a702"
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},
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{
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"url": "https://git.kernel.org/stable/c/9b2a3e7189028aa7c4d53a84364f2ea9fb209787"
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},
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{
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"url": "https://git.kernel.org/stable/c/9ea3f6b9a67be3476e331ce51cac316c2614a564"
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},
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{
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"url": "https://git.kernel.org/stable/c/b7bd6e3971eb7f0e34d2fdce1b18b08094e0c804"
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},
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{
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"url": "https://git.kernel.org/stable/c/22b585cbd67d14df3b91529d1b990661c300faa9"
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},
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{
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"url": "https://git.kernel.org/stable/c/0b075c011032f88d1cfde3b45d6dcf08b44140eb"
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}
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],
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"title": "pinmux: fix race causing mux_owner NULL with active mux_usecount",
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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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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2025-38632",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-11-05T21:05:29.790577Z"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-11-05T21:12:49.802Z"
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}
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}
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]
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}
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} |