CVE-2026-89900

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-89900", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.774Z", "datePublished": "2026-09-16T10:32:00.289Z", "dateUpdated": "2026-10-19T08:54:33.144Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T08:54:33.144Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: cec: core: Fix kmemleak due to missed rc_free_device() call\n\nThe commit dccc0c3ddf8f (\"media: rc: fix race between unregister and\nurb/irq callbacks\") removed the implicit call to rc_free_device() from\nrc_unregister_device(). However, the commit missed to remove the NULL\nassignment of adap->rc that is now causing rc_free_device() to never be\ncalled on an allocated rc device.\n\nkmemleak reports following after e.g. dw-hdmi unbind:\n\nunreferenced object 0xffff00010ac10000 (size 4096):\n comm \"kworker/u16:1\", pid 39, jiffies 4294897739\n hex dump (first 32 bytes):\n 20 23 4b 0a 01 00 ff ff 08 00 c1 0a 01 00 ff ff #K.............\n 08 00 c1 0a 01 00 ff ff 00 00 00 00 00 00 00 00 ................\n backtrace (crc e11baccc):\n kmemleak_alloc+0x38/0x44\n __kmalloc_cache_noprof+0x4a8/0x5e0\n rc_allocate_device+0x48/0x2a0\n cec_allocate_adapter+0x3ac/0x800\n dw_hdmi_cec_probe+0x264/0x634\n platform_probe+0xc0/0x188\n really_probe+0x4a4/0x8e0\n __driver_probe_device+0x2f8/0x440\n driver_probe_device+0x60/0x160\n __device_attach_driver+0x1a0/0x2a0\n bus_for_each_drv+0x100/0x1a0\n __device_attach+0x174/0x350\n device_initial_probe+0x90/0xb0\n bus_probe_device+0x4c/0x120\n device_add+0xdec/0x116c\n platform_device_add+0x354/0x598\n\nRemove the assignment of adap->rc to NULL to let cec_delete_adapter()\nfree the allocated rc device after last user of the cec device exits to\nfix the kmemleak."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/media/cec/core/cec-core.c"], "versions": [{"version": "a7becb58f6b8a3a3efe5d3acfd52e2c107de6772", "lessThan": "954ee95a03b4d31d4505591bfaba02c24b75776b", "status": "affected", "versionType": "git"}, {"version": "75977f5f5c4974c72bbedefbf09ad33ebbaa36f1", "lessThan": "f28a8e1ba4d67a18e4662e5acefd5a4389322366", "status": "affected", "versionType": "git"}, {"version": "e250b672d40a9e0d97a8895cbb301248bea0fce6", "lessThan": "695063fc57574dd117b1bc750ca189cf03a2caad", "status": "affected", "versionType": "git"}, {"version": "dccc0c3ddf8f16071736f98a7d6dd46a2d43e037", "lessThan": "cca2407794795cecff7f8e5f5a79f4ef6b1d6f6c", "status": "affected", "versionType": "git"}, {"version": "dccc0c3ddf8f16071736f98a7d6dd46a2d43e037", "lessThan": "a24ba0653f7154e671dc8d2bf64682ab2d042792", "status": "affected", "versionType": "git"}, {"version": "6.6.143", "lessThan": "6.6.157", "status": "affected", "versionType": "semver"}, {"version": "6.12.93", "lessThan": "6.12.110", "status": "affected", "versionType": "semver"}, {"version": "6.18.35", "lessThan": "6.18.51", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/media/cec/core/cec-core.c"], "versions": [{"version": "7.1", "status": "affected"}, {"version": "0", "lessThan": "7.1", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.157", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.110", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.51", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.5", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "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": "6.6.143", "versionEndExcluding": "6.6.157"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12.93", "versionEndExcluding": "6.12.110"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18.35", "versionEndExcluding": "6.18.51"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.1", "versionEndExcluding": "7.2.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.1", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/954ee95a03b4d31d4505591bfaba02c24b75776b"}, {"url": "https://git.kernel.org/stable/c/f28a8e1ba4d67a18e4662e5acefd5a4389322366"}, {"url": "https://git.kernel.org/stable/c/695063fc57574dd117b1bc750ca189cf03a2caad"}, {"url": "https://git.kernel.org/stable/c/cca2407794795cecff7f8e5f5a79f4ef6b1d6f6c"}, {"url": "https://git.kernel.org/stable/c/a24ba0653f7154e671dc8d2bf64682ab2d042792"}], "title": "media: cec: core: Fix kmemleak due to missed rc_free_device() call", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/media/cec/core/cec-core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "954ee95a03b4d31d4505591bfaba02c24b75776b", "status": "affected", "version": "a7becb58f6b8a3a3efe5d3acfd52e2c107de6772", "versionType": "git"}, {"lessThan": "f28a8e1ba4d67a18e4662e5acefd5a4389322366", "status": "affected", "version": "75977f5f5c4974c72bbedefbf09ad33ebbaa36f1", "versionType": "git"}, {"lessThan": "695063fc57574dd117b1bc750ca189cf03a2caad", "status": "affected", "version": "e250b672d40a9e0d97a8895cbb301248bea0fce6", "versionType": "git"}, {"lessThan": "cca2407794795cecff7f8e5f5a79f4ef6b1d6f6c", "status": "affected", "version": "dccc0c3ddf8f16071736f98a7d6dd46a2d43e037", "versionType": "git"}, {"lessThan": "a24ba0653f7154e671dc8d2bf64682ab2d042792", "status": "affected", "version": "dccc0c3ddf8f16071736f98a7d6dd46a2d43e037", "versionType": "git"}, {"lessThan": "6.6.157", "status": "affected", "version": "6.6.143", "versionType": "semver"}, {"lessThan": "6.12.110", "status": "affected", "version": "6.12.93", "versionType": "semver"}, {"lessThan": "6.18.51", "status": "affected", "version": "6.18.35", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/media/cec/core/cec-core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "7.1"}, {"lessThan": "7.1", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.157", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.110", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.51", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: cec: core: Fix kmemleak due to missed rc_free_device() call\n\nThe commit dccc0c3ddf8f (\"media: rc: fix race between unregister and\nurb/irq callbacks\") removed the implicit call to rc_free_device() from\nrc_unregister_device(). However, the commit missed to remove the NULL\nassignment of adap->rc that is now causing rc_free_device() to never be\ncalled on an allocated rc device.\n\nkmemleak reports following after e.g. dw-hdmi unbind:\n\nunreferenced object 0xffff00010ac10000 (size 4096):\n comm \"kworker/u16:1\", pid 39, jiffies 4294897739\n hex dump (first 32 bytes):\n 20 23 4b 0a 01 00 ff ff 08 00 c1 0a 01 00 ff ff #K.............\n 08 00 c1 0a 01 00 ff ff 00 00 00 00 00 00 00 00 ................\n backtrace (crc e11baccc):\n kmemleak_alloc+0x38/0x44\n __kmalloc_cache_noprof+0x4a8/0x5e0\n rc_allocate_device+0x48/0x2a0\n cec_allocate_adapter+0x3ac/0x800\n dw_hdmi_cec_probe+0x264/0x634\n platform_probe+0xc0/0x188\n really_probe+0x4a4/0x8e0\n __driver_probe_device+0x2f8/0x440\n driver_probe_device+0x60/0x160\n __device_attach_driver+0x1a0/0x2a0\n bus_for_each_drv+0x100/0x1a0\n __device_attach+0x174/0x350\n device_initial_probe+0x90/0xb0\n bus_probe_device+0x4c/0x120\n device_add+0xdec/0x116c\n platform_device_add+0x354/0x598\n\nRemove the assignment of adap->rc to NULL to let cec_delete_adapter()\nfree the allocated rc device after last user of the cec device exits to\nfix the kmemleak."}], "id": "CVE-2026-89900", "lastModified": "2026-10-19T09:18:35.297", "metrics": {}, "published": "2026-09-16T11:16:58.880", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/695063fc57574dd117b1bc750ca189cf03a2caad"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/954ee95a03b4d31d4505591bfaba02c24b75776b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a24ba0653f7154e671dc8d2bf64682ab2d042792"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cca2407794795cecff7f8e5f5a79f4ef6b1d6f6c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f28a8e1ba4d67a18e4662e5acefd5a4389322366"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: media: cec: core: Fix kmemleak due to missed rc_free_device() call", "id": "2535242", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2535242"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-772", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmedia: cec: core: Fix kmemleak due to missed rc_free_device() call\nThe commit dccc0c3ddf8f (\"media: rc: fix race between unregister and\nurb/irq callbacks\") removed the implicit call to rc_free_device() from\nrc_unregister_device(). However, the commit missed to remove the NULL\nassignment of adap->rc that is now causing rc_free_device() to never be\ncalled on an allocated rc device.\nkmemleak reports following after e.g. dw-hdmi unbind:\nunreferenced object 0xffff00010ac10000 (size 4096):\ncomm \"kworker/u16:1\", pid 39, jiffies 4294897739\nhex dump (first 32 bytes):\n20 23 4b 0a 01 00 ff ff 08 00 c1 0a 01 00 ff ff #K.............\n08 00 c1 0a 01 00 ff ff 00 00 00 00 00 00 00 00 ................\nbacktrace (crc e11baccc):\nkmemleak_alloc+0x38/0x44\n__kmalloc_cache_noprof+0x4a8/0x5e0\nrc_allocate_device+0x48/0x2a0\ncec_allocate_adapter+0x3ac/0x800\ndw_hdmi_cec_probe+0x264/0x634\nplatform_probe+0xc0/0x188\nreally_probe+0x4a4/0x8e0\n__driver_probe_device+0x2f8/0x440\ndriver_probe_device+0x60/0x160\n__device_attach_driver+0x1a0/0x2a0\nbus_for_each_drv+0x100/0x1a0\n__device_attach+0x174/0x350\ndevice_initial_probe+0x90/0xb0\nbus_probe_device+0x4c/0x120\ndevice_add+0xdec/0x116c\nplatform_device_add+0x354/0x598\nRemove the assignment of adap->rc to NULL to let cec_delete_adapter()\nfree the allocated rc device after last user of the cec device exits to\nfix the kmemleak.", "A flaw was found in the Linux kernel's media CEC (Consumer Electronics Control) core. A memory leak (kmemleak) can occur because a device deallocation function (`rc_free_device()`) is not called when a CEC device is unbound. This oversight, introduced by a previous code change, prevents the proper release of allocated memory, potentially leading to resource exhaustion or system instability over time."], "name": "CVE-2026-89900", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel-rt", "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"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-09-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-89900\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-89900\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89900.mbox"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a7becb58f6b8a3a3efe5d3acfd52e2c107de6772,954ee95a03b4d31d4505591bfaba02c24b75776b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[75977f5f5c4974c72bbedefbf09ad33ebbaa36f1,f28a8e1ba4d67a18e4662e5acefd5a4389322366)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e250b672d40a9e0d97a8895cbb301248bea0fce6,695063fc57574dd117b1bc750ca189cf03a2caad)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[dccc0c3ddf8f16071736f98a7d6dd46a2d43e037,cca2407794795cecff7f8e5f5a79f4ef6b7576c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[dccc0c3ddf8f16071736f98a7d6dd46a2d43e037,a24ba0653f7154e671dc8d2bf64682ab2d042792)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.6.143,6.6.157)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.12.93,6.12.110)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.18.35,6.18.51)"}}], "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": "generic", "value": "7.1"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,7.1)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.157,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.110,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.51,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.5,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-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": "2026-09-17T13:45:43.076748+00:00", "updated": "2026-09-24T04:00:13.039182+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}