CVE-2026-98777

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98777", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.369Z", "datePublished": "2026-10-18T15:48:13.993Z", "dateUpdated": "2026-10-30T12:39:44.001Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:39:44.001Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbinder: fix leaked fd fixups on TF_UPDATE_TXN supersede\n\nWhen a TF_UPDATE_TXN transaction supersedes a pending async transaction\nin a frozen process, the outdated transaction is freed with kfree()\ndirectly. This skips binder_free_txn_fixups(), leaking all\nbinder_txn_fd_fixup entries and their fget()'d struct file references.\n\nThe leaked file refcounts never reach zero, so the struct file objects\nare permanently pinned in memory. They survive process exit and\naccumulate across invocations until file-max exhaustion.\n\nEvery other transaction cleanup path (binder_free_transaction(),\nbinder_transaction() error paths, binder_release_work()) correctly\ncalls binder_free_txn_fixups(). Add the missing call before kfree()\nin the t_outdated cleanup block."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/android/binder.c"], "versions": [{"version": "9864bb4801331daa48514face9d0f4861e4d485b", "lessThan": "ab3f0ea529d4e36dde52c8efc76082c501abf9b6", "status": "affected", "versionType": "git"}, {"version": "9864bb4801331daa48514face9d0f4861e4d485b", "lessThan": "a7329ea53d04f0c6135d02905810cd6f42acdf45", "status": "affected", "versionType": "git"}, {"version": "9864bb4801331daa48514face9d0f4861e4d485b", "lessThan": "7fd609fb0e9dcbc4d7a1e4da1af5368c0555ff55", "status": "affected", "versionType": "git"}, {"version": "9864bb4801331daa48514face9d0f4861e4d485b", "lessThan": "1299cb3fb061598496086fc87ff291057831148e", "status": "affected", "versionType": "git"}, {"version": "9864bb4801331daa48514face9d0f4861e4d485b", "lessThan": "6673f4f21e2fddfed0abe1eb9045cc958e6db130", "status": "affected", "versionType": "git"}, {"version": "9864bb4801331daa48514face9d0f4861e4d485b", "lessThan": "c4c02084d6687d5cd5edccaf52cc45e5160f1184", "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/android/binder.c"], "versions": [{"version": "6.0", "status": "affected"}, {"version": "0", "lessThan": "6.0", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.191", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.160", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.113", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.56", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.10", "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": "6.0", "versionEndExcluding": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.6.160"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.12.113"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.18.56"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "7.2.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/ab3f0ea529d4e36dde52c8efc76082c501abf9b6"}, {"url": "https://git.kernel.org/stable/c/a7329ea53d04f0c6135d02905810cd6f42acdf45"}, {"url": "https://git.kernel.org/stable/c/7fd609fb0e9dcbc4d7a1e4da1af5368c0555ff55"}, {"url": "https://git.kernel.org/stable/c/1299cb3fb061598496086fc87ff291057831148e"}, {"url": "https://git.kernel.org/stable/c/6673f4f21e2fddfed0abe1eb9045cc958e6db130"}, {"url": "https://git.kernel.org/stable/c/c4c02084d6687d5cd5edccaf52cc45e5160f1184"}], "title": "binder: fix leaked fd fixups on TF_UPDATE_TXN supersede", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/android/binder.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "ab3f0ea529d4e36dde52c8efc76082c501abf9b6", "status": "affected", "version": "9864bb4801331daa48514face9d0f4861e4d485b", "versionType": "git"}, {"lessThan": "a7329ea53d04f0c6135d02905810cd6f42acdf45", "status": "affected", "version": "9864bb4801331daa48514face9d0f4861e4d485b", "versionType": "git"}, {"lessThan": "7fd609fb0e9dcbc4d7a1e4da1af5368c0555ff55", "status": "affected", "version": "9864bb4801331daa48514face9d0f4861e4d485b", "versionType": "git"}, {"lessThan": "1299cb3fb061598496086fc87ff291057831148e", "status": "affected", "version": "9864bb4801331daa48514face9d0f4861e4d485b", "versionType": "git"}, {"lessThan": "6673f4f21e2fddfed0abe1eb9045cc958e6db130", "status": "affected", "version": "9864bb4801331daa48514face9d0f4861e4d485b", "versionType": "git"}, {"lessThan": "c4c02084d6687d5cd5edccaf52cc45e5160f1184", "status": "affected", "version": "9864bb4801331daa48514face9d0f4861e4d485b", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/android/binder.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.0"}, {"lessThan": "6.0", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.191", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.160", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.113", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.56", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.10", "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\nbinder: fix leaked fd fixups on TF_UPDATE_TXN supersede\n\nWhen a TF_UPDATE_TXN transaction supersedes a pending async transaction\nin a frozen process, the outdated transaction is freed with kfree()\ndirectly. This skips binder_free_txn_fixups(), leaking all\nbinder_txn_fd_fixup entries and their fget()'d struct file references.\n\nThe leaked file refcounts never reach zero, so the struct file objects\nare permanently pinned in memory. They survive process exit and\naccumulate across invocations until file-max exhaustion.\n\nEvery other transaction cleanup path (binder_free_transaction(),\nbinder_transaction() error paths, binder_release_work()) correctly\ncalls binder_free_txn_fixups(). Add the missing call before kfree()\nin the t_outdated cleanup block."}], "id": "CVE-2026-98777", "lastModified": "2026-10-30T13:21:27.273", "metrics": {}, "published": "2026-10-18T16:17:31.657", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1299cb3fb061598496086fc87ff291057831148e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6673f4f21e2fddfed0abe1eb9045cc958e6db130"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7fd609fb0e9dcbc4d7a1e4da1af5368c0555ff55"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a7329ea53d04f0c6135d02905810cd6f42acdf45"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ab3f0ea529d4e36dde52c8efc76082c501abf9b6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c4c02084d6687d5cd5edccaf52cc45e5160f1184"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: binder: fix leaked fd fixups on TF_UPDATE_TXN supersede", "id": "2555059", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2555059"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.3", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L", "status": "draft"}, "cwe": "CWE-772", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nbinder: fix leaked fd fixups on TF_UPDATE_TXN supersede\nWhen a TF_UPDATE_TXN transaction supersedes a pending async transaction\nin a frozen process, the outdated transaction is freed with kfree()\ndirectly. This skips binder_free_txn_fixups(), leaking all\nbinder_txn_fd_fixup entries and their fget()'d struct file references.\nThe leaked file refcounts never reach zero, so the struct file objects\nare permanently pinned in memory. They survive process exit and\naccumulate across invocations until file-max exhaustion.\nEvery other transaction cleanup path (binder_free_transaction(),\nbinder_transaction() error paths, binder_release_work()) correctly\ncalls binder_free_txn_fixups(). Add the missing call before kfree()\nin the t_outdated cleanup block.", "A flaw was found in the Linux kernel's Android Binder inter-process communication (IPC) driver. When an asynchronous transaction supersedes an earlier pending transaction in a frozen process, the kernel frees the outdated transaction without releasing associated file descriptor references. A local user can exploit this vulnerability to persistently leak file objects in kernel memory, ultimately leading to a denial of service (DoS) through system resource exhaustion."], "name": "CVE-2026-98777", "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"}, {"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": "2026-10-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-98777\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98777\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98777.mbox"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9864bb4801331daa48514face9d0f4861e4d485b,7fd609fb0e9dcbc4d7a1e4da1af5368c0555ff55)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9864bb4801331daa48514face9d0f4861e4d485b,1299cb3fb061598496086fc87ff291057831148e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9864bb4801331daa48514face9d0f4861e4d485b,6673f4f21e2fddfed0abe1eb9045cc958e6db130)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9864bb4801331daa48514face9d0f4861e4d485b,c4c02084d6687d5cd5edccaf52cc45e5160f1184)"}}], "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": "6.0"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.113,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.56,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.10,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,*]"}}], "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": "2026-10-18T20:00:12.040798+00:00", "updated": "2026-10-23T19:00:23.365494+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}