{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2025-71136", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-01-13T15:30:19.656Z", "datePublished": "2026-01-14T15:07:50.568Z", "dateUpdated": "2026-08-05T12:12:18.759Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:12:18.759Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: adv7842: Avoid possible out-of-bounds array accesses in adv7842_cp_log_status()\n\nIt's possible for cp_read() and hdmi_read() to return -EIO. Those\nvalues are further used as indexes for accessing arrays.\n\nFix that by checking return values where it's needed.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "baseScore": 7.1, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - A local attacker reaches the flaw through VIDIOC_LOG_STATUS on the Cobalt /dev/video or exposed V4L2 subdevice node, which forwards directly to adv7842_cp_log_status(). An HDMI source cannot independently invoke this callback.\nAC:L - Once an I2C read returns -EIO, shifting the result produces index -1 and one status ioctl deterministically triggers the under-read. The ioctl can be repeated during transient or persistent bus faults, with no race or heap grooming required.\nPR:L - The ioctl path contains no capability or administrative privilege check. An unprivileged user or service with ordinary video-device access can invoke it.\nUI:N - The attacker directly issues the ioctl and does not require another user to open media, approve a request, or perform any other action.\nS:U - The vulnerable driver and the affected kernel memory belong to the same host security authority. No guest-host, IOMMU, or other scope boundary is crossed.\nC:H - The index under-read obtains a pointer-sized value preceding a static array, which printk then follows as a string pointer until a NUL byte. This is not a strictly bounded small read and can expose kernel memory through the log.\nI:N - The vulnerable operations only read outside static pointer arrays and pass the resulting values to logging code. They provide no memory-write or control-flow modification primitive.\nA:H - If the preceding word is not a valid NUL-terminated kernel pointer, printk's %s handling can fault and cause a kernel oops. Systems configured with panic-on-oops can consequently panic or reboot." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/media/i2c/adv7842.c" ], "versions": [ { "version": "a89bcd4c6c2023615a89001b5a11b0bb77eb9491", "lessThan": "f81ee181cb036d046340c213091b69d9a8701a76", "status": "affected", "versionType": "git" }, { "version": "a89bcd4c6c2023615a89001b5a11b0bb77eb9491", "lessThan": "f913b9a2ccd6114b206b9e91dae5e3dc13a415a0", "status": "affected", "versionType": "git" }, { "version": "a89bcd4c6c2023615a89001b5a11b0bb77eb9491", "lessThan": "d6a22a4a96e4dfe6897cb3532d2b3016d87706f0", "status": "affected", "versionType": "git" }, { "version": "a89bcd4c6c2023615a89001b5a11b0bb77eb9491", "lessThan": "a73881ae085db5702d8b13e2fc9f78d51c723d3f", "status": "affected", "versionType": "git" }, { "version": "a89bcd4c6c2023615a89001b5a11b0bb77eb9491", "lessThan": "60dde0960e3ead8a9569f6c494d90d0232ac0983", "status": "affected", "versionType": "git" }, { "version": "a89bcd4c6c2023615a89001b5a11b0bb77eb9491", "lessThan": "b693d48a6ed0cd09171103ad418e4a693203d6e4", "status": "affected", "versionType": "git" }, { "version": "a89bcd4c6c2023615a89001b5a11b0bb77eb9491", "lessThan": "8163419e3e05d71dcfa8fb49c8fdf8d76908fe51", "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/media/i2c/adv7842.c" ], "versions": [ { "version": "3.12", "status": "affected" }, { "version": "0", "lessThan": "3.12", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.248", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.198", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.160", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.120", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.64", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.4", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.19", "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": "3.12", "versionEndExcluding": "5.10.248" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "5.15.198" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "6.1.160" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "6.6.120" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "6.12.64" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "6.18.4" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "6.19" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/f81ee181cb036d046340c213091b69d9a8701a76" }, { "url": "https://git.kernel.org/stable/c/f913b9a2ccd6114b206b9e91dae5e3dc13a415a0" }, { "url": "https://git.kernel.org/stable/c/d6a22a4a96e4dfe6897cb3532d2b3016d87706f0" }, { "url": "https://git.kernel.org/stable/c/a73881ae085db5702d8b13e2fc9f78d51c723d3f" }, { "url": "https://git.kernel.org/stable/c/60dde0960e3ead8a9569f6c494d90d0232ac0983" }, { "url": "https://git.kernel.org/stable/c/b693d48a6ed0cd09171103ad418e4a693203d6e4" }, { "url": "https://git.kernel.org/stable/c/8163419e3e05d71dcfa8fb49c8fdf8d76908fe51" } ], "title": "media: adv7842: Avoid possible out-of-bounds array accesses in adv7842_cp_log_status()", "x_generator": { "engine": "bippy-1.2.0" } } } }