{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-74733","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-08-15T05:44:03.930Z","datePublished":"2026-08-22T15:33:21.579Z","dateUpdated":"2026-08-22T15:33:21.579Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-22T15:33:21.579Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: pca953x: fix pca953x_irq_bus_sync_unlock regmap lock\n\nLocking is disabled in the regmap config as this driver uses its own\nlock. This means that all calls to regmap functions (read or write) must\nhold the i2c_lock. The function pca953x_irq_bus_sync_unlock() did not do\nthis, and it was therefore possible that multiple threads could cause an\nincorrect register to be read/written.\n\nA previous patch partly fixed this, but only protected the write to the\ninterrupt mask register, and not the read from the direction register."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpio/gpio-pca953x.c"],"versions":[{"version":"bfc6444b57dc7186b6acc964705d7516cbaf3904","lessThan":"e6a2f5f845f50b0c4299bace5111f56d3390a090","status":"affected","versionType":"git"},{"version":"bfc6444b57dc7186b6acc964705d7516cbaf3904","lessThan":"9dc325327babe7f159e84cbe9380a45342da0585","status":"affected","versionType":"git"},{"version":"58a5c93bd1a6e949267400080f07e57ffe05ec34","status":"affected","versionType":"git"},{"version":"e2ecdddca80dd845df42376e4b0197fe97018ba2","status":"affected","versionType":"git"},{"version":"de7cffa53149c7b48bd1bb29b02390c9f05b7f41","status":"affected","versionType":"git"},{"version":"6.1.101","lessThan":"6.2","status":"affected","versionType":"semver"},{"version":"6.6.42","lessThan":"6.7","status":"affected","versionType":"semver"},{"version":"6.9.11","lessThan":"6.10","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/gpio-pca953x.c"],"versions":[{"version":"6.10","status":"affected"},{"version":"0","lessThan":"6.10","status":"unaffected","versionType":"semver"},{"version":"7.1.9","lessThanOrEqual":"7.1.*","status":"unaffected","versionType":"semver"},{"version":"7.2","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":"6.10","versionEndExcluding":"7.1.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"7.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.101"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6.42"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9.11"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/e6a2f5f845f50b0c4299bace5111f56d3390a090"},{"url":"https://git.kernel.org/stable/c/9dc325327babe7f159e84cbe9380a45342da0585"}],"title":"gpio: pca953x: fix pca953x_irq_bus_sync_unlock regmap lock","x_generator":{"engine":"bippy-1.2.0"}}}}