{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-63965","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-07-19T07:54:57.024Z","datePublished":"2026-07-19T14:55:53.809Z","dateUpdated":"2026-07-19T14:55:53.809Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-07-19T14:55:53.809Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\niio: pressure: bmp280: fix stack leak in bmp580 trigger handler\n\nbmp580_trigger_handler() declares its scan buffer on the stack without\nan initializer and then memcpy()s 3 bytes of 24-bit sensor data into\neach 4-byte __le32 field.  The high byte of comp_temp and comp_press is\nleft uninitialized, and the channel storagebits is 32, so two bytes of\nstack are pushed to userspace per scan.\n\nThis is a regression from when the buffer lived in the private data, the\nmove to a stack-local struct dropped the implicit zeroing.\nbme280_trigger_handler() was fixed up to handle this bug, but this\ndriver was not fixed because there was no padding hole, but rather a\nshort-fill issue.\n\nFix this all by just zero-initializing the structure on the stack."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iio/pressure/bmp280-core.c"],"versions":[{"version":"872c8014e05ed47b8a7c0f5ba4311279a637150b","lessThan":"a58400f58f82f3d8de9c067aa7cda690228c1ecc","status":"affected","versionType":"git"},{"version":"872c8014e05ed47b8a7c0f5ba4311279a637150b","lessThan":"58dfb6fe9dc80270cf7cc014837af4cbf928e3aa","status":"affected","versionType":"git"},{"version":"872c8014e05ed47b8a7c0f5ba4311279a637150b","lessThan":"387c86b582e0782ab332e7bfcd4e6e3f93922961","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iio/pressure/bmp280-core.c"],"versions":[{"version":"6.16","status":"affected"},{"version":"0","lessThan":"6.16","status":"unaffected","versionType":"semver"},{"version":"6.18.35","lessThanOrEqual":"6.18.*","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":"6.16","versionEndExcluding":"6.18.35"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.16","versionEndExcluding":"7.0.12"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.16","versionEndExcluding":"7.1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/a58400f58f82f3d8de9c067aa7cda690228c1ecc"},{"url":"https://git.kernel.org/stable/c/58dfb6fe9dc80270cf7cc014837af4cbf928e3aa"},{"url":"https://git.kernel.org/stable/c/387c86b582e0782ab332e7bfcd4e6e3f93922961"}],"title":"iio: pressure: bmp280: fix stack leak in bmp580 trigger handler","x_generator":{"engine":"bippy-1.2.0"}}}}