{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-39937","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-04-16T07:20:57.148Z","datePublished":"2025-10-04T07:31:00.879Z","dateUpdated":"2026-05-11T21:39:18.519Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:39:18.519Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: rfkill: gpio: Fix crash due to dereferencering uninitialized pointer\n\nSince commit 7d5e9737efda (\"net: rfkill: gpio: get the name and type from\ndevice property\") rfkill_find_type() gets called with the possibly\nuninitialized \"const char *type_name;\" local variable.\n\nOn x86 systems when rfkill-gpio binds to a \"BCM4752\" or \"LNV4752\"\nacpi_device, the rfkill->type is set based on the ACPI acpi_device_id:\n\n        rfkill->type = (unsigned)id->driver_data;\n\nand there is no \"type\" property so device_property_read_string() will fail\nand leave type_name uninitialized, leading to a potential crash.\n\nrfkill_find_type() does accept a NULL pointer, fix the potential crash\nby initializing type_name to NULL.\n\nNote likely sofar this has not been caught because:\n\n1. Not many x86 machines actually have a \"BCM4752\"/\"LNV4752\" acpi_device\n2. The stack happened to contain NULL where type_name is stored"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/rfkill/rfkill-gpio.c"],"versions":[{"version":"7d5e9737efda16535e5b54bd627ef4881d11d31f","lessThan":"184f608a68f96794e8fe58cd5535014d53622cde","status":"affected","versionType":"git"},{"version":"7d5e9737efda16535e5b54bd627ef4881d11d31f","lessThan":"8793e7a8e1b60131a825457174ed6398111daeb7","status":"affected","versionType":"git"},{"version":"7d5e9737efda16535e5b54bd627ef4881d11d31f","lessThan":"ada2282259243387e6b6e89239aeb4897e62f051","status":"affected","versionType":"git"},{"version":"7d5e9737efda16535e5b54bd627ef4881d11d31f","lessThan":"47ade5f9d70b23a119ec20b1c6504864b2543a79","status":"affected","versionType":"git"},{"version":"7d5e9737efda16535e5b54bd627ef4881d11d31f","lessThan":"689aee35ce671aab752f159e5c8e66d7685e6887","status":"affected","versionType":"git"},{"version":"7d5e9737efda16535e5b54bd627ef4881d11d31f","lessThan":"21ba85d9d508422ca9e6698463ff9357c928c22d","status":"affected","versionType":"git"},{"version":"7d5e9737efda16535e5b54bd627ef4881d11d31f","lessThan":"21a39b958b4bcf44f7674bfbbe1bbb8cad0d842d","status":"affected","versionType":"git"},{"version":"7d5e9737efda16535e5b54bd627ef4881d11d31f","lessThan":"b6f56a44e4c1014b08859dcf04ed246500e310e5","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/rfkill/rfkill-gpio.c"],"versions":[{"version":"4.6","status":"affected"},{"version":"0","lessThan":"4.6","status":"unaffected","versionType":"semver"},{"version":"5.4.300","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.245","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.194","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.154","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.108","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.49","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.16.9","lessThanOrEqual":"6.16.*","status":"unaffected","versionType":"semver"},{"version":"6.17","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":"4.6","versionEndExcluding":"5.4.300"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"5.10.245"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"5.15.194"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.1.154"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.6.108"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.12.49"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.16.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.17"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/184f608a68f96794e8fe58cd5535014d53622cde"},{"url":"https://git.kernel.org/stable/c/8793e7a8e1b60131a825457174ed6398111daeb7"},{"url":"https://git.kernel.org/stable/c/ada2282259243387e6b6e89239aeb4897e62f051"},{"url":"https://git.kernel.org/stable/c/47ade5f9d70b23a119ec20b1c6504864b2543a79"},{"url":"https://git.kernel.org/stable/c/689aee35ce671aab752f159e5c8e66d7685e6887"},{"url":"https://git.kernel.org/stable/c/21ba85d9d508422ca9e6698463ff9357c928c22d"},{"url":"https://git.kernel.org/stable/c/21a39b958b4bcf44f7674bfbbe1bbb8cad0d842d"},{"url":"https://git.kernel.org/stable/c/b6f56a44e4c1014b08859dcf04ed246500e310e5"}],"title":"net: rfkill: gpio: Fix crash due to dereferencering uninitialized pointer","x_generator":{"engine":"bippy-1.2.0"}}}}