{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-64238", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T15:36:31.772Z", "datePublished": "2026-07-24T15:27:42.482Z", "dateUpdated": "2026-07-24T15:27:42.482Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-07-24T15:27:42.482Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: shared: fix deadlock on shared proxy's parent removal\n\nCommit 710abda58055 (\"gpio: shared: call gpio_chip::of_xlate() if set\")\nused the mutex embedded in struct gpio_shared_entry to protect the\noffset field which now can be modified after assignment. The critical\nsection however is too wide and introduced a potential deadlock on the\nremoval of the shared GPIO proxy's parent.\n\nMake the critical section shorter - only protect the offset when it's\nbeing read.\n\nWhile at it: mention the fact that the entry lock is now also used to\nprotect against concurrent access to the offset field in the structure's\ndocumentation."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpio/gpiolib-shared.c"], "versions": [{"version": "710abda58055ed5eaa8958107633cc12a365c328", "lessThan": "a554dfcd30dd5e41d1d67387b3bb85cea83e12e1", "status": "affected", "versionType": "git"}, {"version": "710abda58055ed5eaa8958107633cc12a365c328", "lessThan": "a1b836607304f71051f9f9dcccf8b5097b86a1fb", "status": "affected", "versionType": "git"}, {"version": "28f488e7b327630686378bb1d24e22cfc3fc162d", "status": "affected", "versionType": "git"}, {"version": "6.19.12", "lessThan": "6.20", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpio/gpiolib-shared.c"], "versions": [{"version": "7.0", "status": "affected"}, {"version": "0", "lessThan": "7.0", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.12", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.0", "versionEndExcluding": "7.0.12"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.0", "versionEndExcluding": "7.1"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.19.12"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/a554dfcd30dd5e41d1d67387b3bb85cea83e12e1"}, {"url": "https://git.kernel.org/stable/c/a1b836607304f71051f9f9dcccf8b5097b86a1fb"}], "title": "gpio: shared: fix deadlock on shared proxy's parent removal", "x_generator": {"engine": "bippy-1.2.0"}}}}

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