{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53386", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.402Z", "datePublished": "2026-07-19T11:59:33.318Z", "dateUpdated": "2026-08-05T12:35:25.036Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:35:25.036Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: adc: ti-ads1298: add bounds check to pga_settings index\n\nads1298_pga_settings has 7 elements but ADS1298_MASK_CH_PGA can yield\nvalues 0-7. If it yields a value >= 7, this causes an out-of-bounds\narray access. Add a bounds check and return -EINVAL if the index\nis out of range.\n\nNote that the remaining value b111 is reserved so should not be seen\nin a correctly functioning system."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The vulnerable code is reached via local IIO sysfs reads of the channel scale attribute (e.g. /sys/bus/iio/devices/iio:deviceN/in_voltageX_scale), which flows through read(2) into ads1298_get_scale(); this is not reachable over any network protocol.\nAC:L - Once the CHnSET register contains reserved PGA encoding 111 (index 7), reading the scale attribute deterministically triggers the out-of-bounds access; a privileged attacker can reliably prime this state via debugfs direct_reg_access writes to CHnSET before the sysfs read.\nPR:L - The IIO scale sysfs attributes are world-readable (mode 0444), so any unprivileged local user can invoke ads1298_get_scale without elevated capabilities; no user namespace or real-root capability is required to reach the vulnerable code path.\nUI:N - Exploitation requires only the attacker's own read of a sysfs attribute or debugfs register write; no action by a separate victim user is needed.\nS:U - The out-of-bounds read and any resulting kernel fault occur entirely within kernel space on the same host; there is no crossing of VM, container, or IOMMU security boundaries.\nC:H - The bug is a one-byte out-of-bounds read past the end of the static ads1298_pga_settings array in kernel memory, leaking adjacent .rodata contents into kernel arithmetic used to compute the scale value.\nI:H - The out-of-bounds byte is consumed as the PGA gain divisor in kernel arithmetic, corrupting the computed scale and potentially causing a division-by-zero if the leaked value is zero, affecting kernel execution integrity.\nA:H - If the out-of-bounds read yields a zero gain value, the subsequent integer division in ads1298_get_scale causes a kernel divide-by-zero fault; any resulting kernel oops or panic constitutes total loss of availability."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/iio/adc/ti-ads1298.c"], "versions": [{"version": "00ef7708fa6073a84f6898fdcdfe965d903b0378", "lessThan": "d5793975fc3b1780ba576812158ef22e3104e60e", "status": "affected", "versionType": "git"}, {"version": "00ef7708fa6073a84f6898fdcdfe965d903b0378", "lessThan": "d08d82d83ed45fd8c001a9df66ad7ebb86c9d6c6", "status": "affected", "versionType": "git"}, {"version": "00ef7708fa6073a84f6898fdcdfe965d903b0378", "lessThan": "abe0854e356b1bb814393ca884cb42b3eb12ce10", "status": "affected", "versionType": "git"}, {"version": "00ef7708fa6073a84f6898fdcdfe965d903b0378", "lessThan": "abd776ded3e256889610595290f6ca46cb6e91ab", "status": "affected", "versionType": "git"}, {"version": "00ef7708fa6073a84f6898fdcdfe965d903b0378", "lessThan": "95e8a48d7a85d4226934020e57815a3316d3a14b", "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/adc/ti-ads1298.c"], "versions": [{"version": "6.9", "status": "affected"}, {"version": "0", "lessThan": "6.9", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.95", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.37", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.14", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.2", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc1", "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": "6.9", "versionEndExcluding": "6.12.95"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "6.18.37"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "7.0.14"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "7.1.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "7.2-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/d5793975fc3b1780ba576812158ef22e3104e60e"}, {"url": "https://git.kernel.org/stable/c/d08d82d83ed45fd8c001a9df66ad7ebb86c9d6c6"}, {"url": "https://git.kernel.org/stable/c/abe0854e356b1bb814393ca884cb42b3eb12ce10"}, {"url": "https://git.kernel.org/stable/c/abd776ded3e256889610595290f6ca46cb6e91ab"}, {"url": "https://git.kernel.org/stable/c/95e8a48d7a85d4226934020e57815a3316d3a14b"}], "title": "iio: adc: ti-ads1298: add bounds check to pga_settings index", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"bugzilla": {"description": "kernel: iio: adc: ti-ads1298: add bounds check to pga_settings index", "id": "2502247", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502247"}, "csaw": false, "cwe": "CWE-787", "details": ["In the Linux kernel, the following vulnerability has been resolved:\niio: adc: ti-ads1298: add bounds check to pga_settings index\nads1298_pga_settings has 7 elements but ADS1298_MASK_CH_PGA can yield\nvalues 0-7. If it yields a value >= 7, this causes an out-of-bounds\narray access. Add a bounds check and return -EINVAL if the index\nis out of range.\nNote that the remaining value b111 is reserved so should not be seen\nin a correctly functioning system.", "A flaw was found in the Linux kernel's `ti-ads1298` Analog-to-Digital Converter (ADC) driver. This vulnerability arises from an incorrect bounds check when accessing the `pga_settings` array. An attacker could potentially provide a crafted input that leads to an out-of-bounds array access. This could result in system instability or a kernel crash, leading to a Denial of Service (DoS)."], "name": "CVE-2026-53386", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-07-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-53386\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-53386\nhttps://lore.kernel.org/linux-cve-announce/2026071934-CVE-2026-53386-d76b@gregkh/T"]}

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