CVE-2026-46058

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-46058", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.095Z", "datePublished": "2026-05-27T12:57:17.853Z", "dateUpdated": "2026-08-05T12:29:25.621Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:29:25.621Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: amphion: Fix race between m2m job_abort and device_run\n\nFix kernel panic caused by race condition where v4l2_m2m_ctx_release()\nfrees m2m_ctx while v4l2_m2m_try_run() is about to call device_run\nwith the same context.\n\nRace sequence:\n v4l2_m2m_try_run(): v4l2_m2m_ctx_release():\n lock/unlock v4l2_m2m_cancel_job()\n job_abort()\n v4l2_m2m_job_finish()\n kfree(m2m_ctx) <- frees ctx\n device_run() <- use-after-free crash at 0x538\n\nCrash trace:\n Unable to handle kernel read from unreadable memory at virtual address\n 0000000000000538\n v4l2_m2m_try_run+0x78/0x138\n v4l2_m2m_device_run_work+0x14/0x20\n\nThe amphion vpu driver does not rely on the m2m framework's device_run\ncallback to perform encode/decode operations.\n\nFix the race by preventing m2m framework job scheduling entirely:\n- Add job_ready callback returning 0 (no jobs ready for m2m framework)\n- Remove job_abort callback to avoid the race condition"}], "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 amphion VPU is a V4L2 mem2mem device reached only through a local `/dev/videoN` device file via open/ioctl/close; there is no network or remote path to this code.\nAC:L - The flaw is a race the attacker fully controls by running one thread that streams/queues buffers (scheduling a job) and another that closes the fd (triggering release); it can be retried in a loop until won.\nPR:L - Exploitation requires a local unprivileged user with access to the V4L2 device node (typically granted via the video group or logged-in session ACL); no root is needed.\nUI:N - The attacker performs all steps (open, stream, concurrent close) itself; no action by any other user is required.\nS:U - The vulnerability and its impact are confined to the kernel's own security authority with no crossing of a VM/IOMMU/sandbox boundary.\nC:H - The freed `m2m_ctx` is dereferenced after `kfree` (use-after-free per the fix), and a UAF over a slab object the attacker can groom/reallocate is treated as enabling arbitrary read of freed contents.\nI:H - The use-after-free on the freed context permits heap grooming/reallocation of the object that is then dereferenced, providing a write/control primitive consistent with kernel UAF integrity impact.\nA:H - The race reliably faults on an invalid pointer in `v4l2_m2m_try_run`, producing a kernel oops/panic and denial of service."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/media/platform/amphion/vpu_v4l2.c"], "versions": [{"version": "3cd084519c6f91cbef9d604bcf26844fa81d4922", "lessThan": "516467052fdfc6a13eadc70d43420ae57436bf3c", "status": "affected", "versionType": "git"}, {"version": "3cd084519c6f91cbef9d604bcf26844fa81d4922", "lessThan": "42dc622776f3ce1a6c31b13bdc686f7295e3b323", "status": "affected", "versionType": "git"}, {"version": "3cd084519c6f91cbef9d604bcf26844fa81d4922", "lessThan": "da4f46c5cf1d26e6b09418ad453e152f2e75a02c", "status": "affected", "versionType": "git"}, {"version": "3cd084519c6f91cbef9d604bcf26844fa81d4922", "lessThan": "fdc150dac1adb9a98be9d6956cff0348838b024a", "status": "affected", "versionType": "git"}, {"version": "3cd084519c6f91cbef9d604bcf26844fa81d4922", "lessThan": "6be2cb75bc1300080cfc8051579f22efae9401f7", "status": "affected", "versionType": "git"}, {"version": "3cd084519c6f91cbef9d604bcf26844fa81d4922", "lessThan": "8cd35ceadcfc8c5da2eb7f7ce24525ce9d4ee62e", "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/platform/amphion/vpu_v4l2.c"], "versions": [{"version": "5.18", "status": "affected"}, {"version": "0", "lessThan": "5.18", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.175", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.140", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.86", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.27", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.4", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "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": "5.18", "versionEndExcluding": "6.1.175"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.18", "versionEndExcluding": "6.6.140"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.18", "versionEndExcluding": "6.12.86"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.18", "versionEndExcluding": "6.18.27"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.18", "versionEndExcluding": "7.0.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.18", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/516467052fdfc6a13eadc70d43420ae57436bf3c"}, {"url": "https://git.kernel.org/stable/c/42dc622776f3ce1a6c31b13bdc686f7295e3b323"}, {"url": "https://git.kernel.org/stable/c/da4f46c5cf1d26e6b09418ad453e152f2e75a02c"}, {"url": "https://git.kernel.org/stable/c/fdc150dac1adb9a98be9d6956cff0348838b024a"}, {"url": "https://git.kernel.org/stable/c/6be2cb75bc1300080cfc8051579f22efae9401f7"}, {"url": "https://git.kernel.org/stable/c/8cd35ceadcfc8c5da2eb7f7ce24525ce9d4ee62e"}], "title": "media: amphion: Fix race between m2m job_abort and device_run", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

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"3cd084519c6f91cbef9d604bcf26844fa81d4922", "versionType": "git"}, {"lessThan": "8cd35ceadcfc8c5da2eb7f7ce24525ce9d4ee62e", "status": "affected", "version": "3cd084519c6f91cbef9d604bcf26844fa81d4922", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/media/platform/amphion/vpu_v4l2.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.18"}, {"lessThan": "5.18", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.175", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.140", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.86", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.27", "versionType": "semver"}, {"lessThanOrEqual": "7.0.*", "status": "unaffected", "version": "7.0.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "FE99B3A9-CC61-4329-91B2-DC8483A7D1CF", "versionEndExcluding": "6.1.175", "versionStartIncluding": "5.18", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A1A92866-F406-43B5-B2D1-CFC274753E9D", "versionEndExcluding": "6.6.140", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "55DA1C62-9991-451E-B8A8-E0004E00F789", "versionEndExcluding": "6.12.86", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A10AC84F-C058-47D5-85B4-E6E51A613B74", "versionEndExcluding": "6.18.27", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "CDB78D6D-22C3-4154-B0D0-94AF1CE5C2E3", "versionEndExcluding": "7.0.4", "versionStartIncluding": "6.19", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: amphion: Fix race between m2m job_abort and device_run\n\nFix kernel panic caused by race condition where v4l2_m2m_ctx_release()\nfrees m2m_ctx while v4l2_m2m_try_run() is about to call device_run\nwith the same context.\n\nRace sequence:\n v4l2_m2m_try_run(): v4l2_m2m_ctx_release():\n lock/unlock v4l2_m2m_cancel_job()\n job_abort()\n v4l2_m2m_job_finish()\n kfree(m2m_ctx) <- frees ctx\n device_run() <- use-after-free crash at 0x538\n\nCrash trace:\n Unable to handle kernel read from unreadable memory at virtual address\n 0000000000000538\n v4l2_m2m_try_run+0x78/0x138\n v4l2_m2m_device_run_work+0x14/0x20\n\nThe amphion vpu driver does not rely on the m2m framework's device_run\ncallback to perform encode/decode operations.\n\nFix the race by preventing m2m framework job scheduling entirely:\n- Add job_ready callback returning 0 (no jobs ready for m2m framework)\n- Remove job_abort callback to avoid the race condition"}], "id": "CVE-2026-46058", "lastModified": "2026-06-17T10:52:59.783", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2026-05-27T14:17:25.537", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/42dc622776f3ce1a6c31b13bdc686f7295e3b323"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/516467052fdfc6a13eadc70d43420ae57436bf3c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6be2cb75bc1300080cfc8051579f22efae9401f7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8cd35ceadcfc8c5da2eb7f7ce24525ce9d4ee62e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/da4f46c5cf1d26e6b09418ad453e152f2e75a02c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/fdc150dac1adb9a98be9d6956cff0348838b024a"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-362"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: media: amphion: Fix race between m2m job_abort and device_run", "id": "2481993", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481993"}, "csaw": false, "cwe": "CWE-364", "details": ["A flaw was found in the Linux kernel, specifically within the amphion video processing unit (VPU) driver. A race condition, a situation where multiple operations occur in an unpredictable order, exists in the Video for Linux 2 (V4L2) media-to-memory (m2m) framework. This vulnerability allows a local attacker to exploit a timing issue, leading to a use-after-free error that can cause a kernel panic and result in a denial of service for the system."], "name": "CVE-2026-46058", "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": "2026-05-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-46058\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-46058\nhttps://lore.kernel.org/linux-cve-announce/2026052755-CVE-2026-46058-8b18@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[3cd084519c6f91cbef9d604bcf26844fa81d4922,42dc622776f3ce1a6c31b13bdc686f7295e3b323)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[3cd084519c6f91cbef9d604bcf26844fa81d4922,da4f46c5cf1d26e6b09418ad453e152f2e75a02c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[3cd084519c6f91cbef9d604bcf26844fa81d4922,fdc150dac1adb9a98be9d6956cff0348838b024a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[3cd084519c6f91cbef9d604bcf26844fa81d4922,6be2cb75bc1300080cfc8051579f22efae9401f7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[3cd084519c6f91cbef9d604bcf26844fa81d4922,8cd35ceadcfc8c5da2eb7f7ce24525ce9d4ee62e)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "5.18"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,5.18)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.140,7.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.86,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.27,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.4,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-05-27T20:15:16.214557+00:00", "updated": "2026-06-18T07:45:03.625365+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}