243 lines
13 KiB
JSON
243 lines
13 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2025-71136",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-01-13T15:30:19.656Z",
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"datePublished": "2026-01-14T15:07:50.568Z",
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"dateUpdated": "2026-08-05T12:12:18.759Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T12:12:18.759Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"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."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
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"baseScore": 7.1,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"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."
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}
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]
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/media/i2c/adv7842.c"
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],
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"versions": [
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{
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"version": "a89bcd4c6c2023615a89001b5a11b0bb77eb9491",
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"lessThan": "f81ee181cb036d046340c213091b69d9a8701a76",
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"status": "affected",
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"versionType": "git"
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},
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{
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"lessThan": "f913b9a2ccd6114b206b9e91dae5e3dc13a415a0",
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"status": "affected",
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},
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"lessThan": "d6a22a4a96e4dfe6897cb3532d2b3016d87706f0",
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"status": "affected",
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"status": "affected",
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"versionType": "git"
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{
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"version": "a89bcd4c6c2023615a89001b5a11b0bb77eb9491",
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"lessThan": "60dde0960e3ead8a9569f6c494d90d0232ac0983",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "a89bcd4c6c2023615a89001b5a11b0bb77eb9491",
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"lessThan": "b693d48a6ed0cd09171103ad418e4a693203d6e4",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "a89bcd4c6c2023615a89001b5a11b0bb77eb9491",
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"lessThan": "8163419e3e05d71dcfa8fb49c8fdf8d76908fe51",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/media/i2c/adv7842.c"
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],
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"versions": [
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{
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"version": "3.12",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "3.12",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.248",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.198",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.160",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.120",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.64",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.4",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.19",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.12",
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/f81ee181cb036d046340c213091b69d9a8701a76"
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},
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{
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"url": "https://git.kernel.org/stable/c/f913b9a2ccd6114b206b9e91dae5e3dc13a415a0"
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{
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"url": "https://git.kernel.org/stable/c/d6a22a4a96e4dfe6897cb3532d2b3016d87706f0"
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{
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"url": "https://git.kernel.org/stable/c/a73881ae085db5702d8b13e2fc9f78d51c723d3f"
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},
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{
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"url": "https://git.kernel.org/stable/c/60dde0960e3ead8a9569f6c494d90d0232ac0983"
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{
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"url": "https://git.kernel.org/stable/c/b693d48a6ed0cd09171103ad418e4a693203d6e4"
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{
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"url": "https://git.kernel.org/stable/c/8163419e3e05d71dcfa8fb49c8fdf8d76908fe51"
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}
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],
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"title": "media: adv7842: Avoid possible out-of-bounds array accesses in adv7842_cp_log_status()",
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"x_generator": {
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