CVE-2026-72481

In the Linux kernel, the following vulnerability has been resolved: iio: magnetometer: ak8975: fix potential kernel stack memory leak Currently in the AK8975 driver there are four instances where potential uninitialized kernel stack memory leaks can occur. If i2c_smbus_read_i2c_block_data_or_emulated() returns a value less than the size of the buffer, uninitialized bytes are retained in the buffer and later the buffer is passed on to IIO buffers, potentially leaking memory to userspace. Fix this by adding checks whether the return value of the function is equal to the size of the buffer and subsequently if the value is lesser than zero to distinguish from a returned error code.

CVSS

No CVSS.

References

Link	Resource
https://git.kernel.org/stable/c/12848f4ded022963944c063e09a192549a4dad1e
https://git.kernel.org/stable/c/3d57672119525c59ed73ea21accb001ccbcd6cfd
https://git.kernel.org/stable/c/8cf346074533356d67a6a6a43a192328ad341f11
https://git.kernel.org/stable/c/9f920550abacedc7fc3163dea65ac2a7d0b0765d
https://git.kernel.org/stable/c/a9a00d727b7bbc5e913a919530a9dd468935bf95
https://git.kernel.org/stable/c/a9cf46054f81972f8c0f1dc2a79d2a141999dbce
https://git.kernel.org/stable/c/b974566803bceb72f0b9b5f1d7270b79ba963766
https://git.kernel.org/stable/c/fb27ebf81136e796c7b719303ef6fd7e1ae5d488

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-15 06:22

Updated : 2026-08-17 06:19

NVD link : CVE-2026-72481

Mitre link : CVE-2026-72481

CVE.ORG link : CVE-2026-72481

JSON object : View

Products Affected

No product.

CWE

No CWE.

{"id": "CVE-2026-72481", "cveTags": [], "metrics": {}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "bc11ca4a0b84a2f2ebaca2614b92998738d13b1e", "lessThan": "12848f4ded022963944c063e09a192549a4dad1e", "versionType": "git"}, {"status": "affected", "version": "bc11ca4a0b84a2f2ebaca2614b92998738d13b1e", "lessThan": "a9cf46054f81972f8c0f1dc2a79d2a141999dbce", "versionType": "git"}, {"status": "affected", "version": "bc11ca4a0b84a2f2ebaca2614b92998738d13b1e", "lessThan": "9f920550abacedc7fc3163dea65ac2a7d0b0765d", "versionType": "git"}, {"status": "affected", "version": "bc11ca4a0b84a2f2ebaca2614b92998738d13b1e", "lessThan": "8cf346074533356d67a6a6a43a192328ad341f11", "versionType": "git"}, {"status": "affected", "version": "bc11ca4a0b84a2f2ebaca2614b92998738d13b1e", "lessThan": "b974566803bceb72f0b9b5f1d7270b79ba963766", "versionType": "git"}, {"status": "affected", "version": "bc11ca4a0b84a2f2ebaca2614b92998738d13b1e", "lessThan": "3d57672119525c59ed73ea21accb001ccbcd6cfd", "versionType": "git"}, {"status": "affected", "version": "bc11ca4a0b84a2f2ebaca2614b92998738d13b1e", "lessThan": "fb27ebf81136e796c7b719303ef6fd7e1ae5d488", "versionType": "git"}, {"status": "affected", "version": "bc11ca4a0b84a2f2ebaca2614b92998738d13b1e", "lessThan": "a9a00d727b7bbc5e913a919530a9dd468935bf95", "versionType": "git"}], "programFiles": ["drivers/iio/magnetometer/ak8975.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4.7"}, {"status": "unaffected", "version": "0", "lessThan": "4.7", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.261", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.212", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.178", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.145", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.97", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.40", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.1.5", "versionType": "semver", "lessThanOrEqual": "7.1.*"}, {"status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/iio/magnetometer/ak8975.c"], "defaultStatus": "affected"}]}], "published": "2026-08-15T06:22:22.313", "references": [{"url": "https://git.kernel.org/stable/c/12848f4ded022963944c063e09a192549a4dad1e", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/3d57672119525c59ed73ea21accb001ccbcd6cfd", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8cf346074533356d67a6a6a43a192328ad341f11", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/9f920550abacedc7fc3163dea65ac2a7d0b0765d", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/a9a00d727b7bbc5e913a919530a9dd468935bf95", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/a9cf46054f81972f8c0f1dc2a79d2a141999dbce", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/b974566803bceb72f0b9b5f1d7270b79ba963766", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/fb27ebf81136e796c7b719303ef6fd7e1ae5d488", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Received", "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: magnetometer: ak8975: fix potential kernel stack memory leak\n\nCurrently in the AK8975 driver there are four instances where potential\nuninitialized kernel stack memory leaks can occur. If\ni2c_smbus_read_i2c_block_data_or_emulated() returns a value less than\nthe size of the buffer, uninitialized bytes are retained in the buffer\nand later the buffer is passed on to IIO buffers, potentially leaking\nmemory to userspace.\n\nFix this by adding checks whether the return value of the function is\nequal to the size of the buffer and subsequently if the value is\nlesser than zero to distinguish from a returned error code."}], "lastModified": "2026-08-17T06:19:16.230", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}