{"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"}}}}