CVE-2026-46011

{"id": "CVE-2026-46011", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "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": "5fb1c2361e5630491d2a2f9359654eb022601bc0", "lessThan": "2209fdae5c2f615930c9af1379c1cfca199ec5d8", "versionType": "git"}, {"status": "affected", "version": "5fb1c2361e5630491d2a2f9359654eb022601bc0", "lessThan": "0498b27a1542021d90269d58347501d4c3ccd84e", "versionType": "git"}, {"status": "affected", "version": "5fb1c2361e5630491d2a2f9359654eb022601bc0", "lessThan": "26506a30e0e26d612f82a7bf0e395626968a44e6", "versionType": "git"}, {"status": "affected", "version": "5fb1c2361e5630491d2a2f9359654eb022601bc0", "lessThan": "e78c39f720679fcf3a2eacd82725ec3ea2648301", "versionType": "git"}, {"status": "affected", "version": "5fb1c2361e5630491d2a2f9359654eb022601bc0", "lessThan": "34c519feef3e4fcff1078dc8bdb25fbbbd10303f", "versionType": "git"}], "programFiles": ["drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.2"}, {"status": "unaffected", "version": "0", "lessThan": "6.2", "versionType": "semver"}, {"status": "unaffected", "version": "6.6.140", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.86", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.27", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.0.4", "versionType": "semver", "lessThanOrEqual": "7.0.*"}, {"status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c"], "defaultStatus": "affected"}]}], "published": "2026-05-27T14:17:19.250", "references": [{"url": "https://git.kernel.org/stable/c/0498b27a1542021d90269d58347501d4c3ccd84e", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/2209fdae5c2f615930c9af1379c1cfca199ec5d8", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/26506a30e0e26d612f82a7bf0e395626968a44e6", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/34c519feef3e4fcff1078dc8bdb25fbbbd10303f", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/e78c39f720679fcf3a2eacd82725ec3ea2648301", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-416"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: mtk-jpeg: fix use-after-free in release path due to uncancelled work\n\nThe mtk_jpeg_release() function frees the context structure (ctx) without\nfirst cancelling any pending or running work in ctx->jpeg_work. This\ncreates a race window where the workqueue callback may still be accessing\nthe context memory after it has been freed.\n\nRace condition:\n\n CPU 0 (release) CPU 1 (workqueue)\n ---------------- ------------------\n close()\n mtk_jpeg_release()\n mtk_jpegenc_worker()\n ctx = work->data\n // accessing ctx\n\n kfree(ctx) // freed!\n access ctx // UAF!\n\nThe work is queued via queue_work() during JPEG encode/decode operations\n(via mtk_jpeg_device_run). If the device is closed while work is pending\nor running, the work handler will access freed memory.\n\nFix this by calling cancel_work_sync() BEFORE acquiring the mutex. This\nordering is critical: if cancel_work_sync() is called after mutex_lock(),\nand the work handler also tries to acquire the same mutex, it would cause\na deadlock.\n\nNote: The open error path does NOT need cancel_work_sync() because\nINIT_WORK() only initializes the work structure - it does not schedule\nit. Work is only scheduled later during ioctl operations."}], "lastModified": "2026-06-17T10:52:53.740", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A1A92866-F406-43B5-B2D1-CFC274753E9D", "versionEndExcluding": "6.6.140", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "55DA1C62-9991-451E-B8A8-E0004E00F789", "versionEndExcluding": "6.12.86", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A10AC84F-C058-47D5-85B4-E6E51A613B74", "versionEndExcluding": "6.18.27", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CDB78D6D-22C3-4154-B0D0-94AF1CE5C2E3", "versionEndExcluding": "7.0.4", "versionStartIncluding": "6.19"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}