{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98378", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.345Z", "datePublished": "2026-10-09T07:34:18.626Z", "dateUpdated": "2026-10-09T07:34:18.626Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-09T07:34:18.626Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Skip unsettled links in link iterator\n\nbpf_link_prime() inserts a link into link_idr before anon_inode_getfile()\nsucceeds and before bpf_link_settle() publishes the ID in link->id.\nbpf_link_by_id() treats such an ID-zero link as unsettled, but the link\niterator takes a reference without this check.\n\nIf anon_inode_getfile() then fails, the creator removes the ID and frees\nits still-private link directly. The iterator is left with a dangling\nreference and its next bpf_link_put() accesses freed memory.\n\nTreat ID-zero entries as transient in bpf_link_get_curr_or_next(), just as\nbpf_link_by_id() does.\n\n BUG: KASAN: slab-use-after-free in bpf_link_put\n Write of size 8 by task exp/384\n Call Trace:\n bpf_link_put kernel/bpf/syscall.c:3372\n bpf_link_seq_next kernel/bpf/link_iter.c:33\n bpf_seq_read kernel/bpf/bpf_iter.c:158\n vfs_read fs/read_write.c:572\n ksys_read fs/read_write.c:716\n do_syscall_64 arch/x86/entry/syscall_64.c:84\n entry_SYSCALL_64_after_hwframe arch/x86/entry/entry_64.S:121\n Kernel panic - not syncing: KASAN: panic_on_warn set ..."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/bpf/syscall.c"], "versions": [{"version": "9f88361273082825d9f0d13a543d49f9fa0d44a8", "lessThan": "68930f8d40ab4c10ca3b019f076136758fd100a8", "status": "affected", "versionType": "git"}, {"version": "9f88361273082825d9f0d13a543d49f9fa0d44a8", "lessThan": "c251ed48bd9063cf7de6049421e78b6de989060f", "status": "affected", "versionType": "git"}, {"version": "9f88361273082825d9f0d13a543d49f9fa0d44a8", "lessThan": "798a61edbc436cacdb659927d067368eeb1e30e2", "status": "affected", "versionType": "git"}, {"version": "9f88361273082825d9f0d13a543d49f9fa0d44a8", "lessThan": "6e271f093d15d323f42de26f66556af53fa8e19f", "status": "affected", "versionType": "git"}, {"version": "9f88361273082825d9f0d13a543d49f9fa0d44a8", "lessThan": "87ce4b53b7436b50fc984f0a6afaf77f68ac5573", "status": "affected", "versionType": "git"}, {"version": "9f88361273082825d9f0d13a543d49f9fa0d44a8", "lessThan": "50e80e2bb5e2be8515205b9c496b9640ddefa434", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/bpf/syscall.c"], "versions": [{"version": "5.19", "status": "affected"}, {"version": "0", "lessThan": "5.19", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.189", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.158", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.112", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.55", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.9", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3-rc5", "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": "5.19", "versionEndExcluding": "6.1.189"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19", "versionEndExcluding": "6.6.158"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19", "versionEndExcluding": "6.12.112"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19", "versionEndExcluding": "6.18.55"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19", "versionEndExcluding": "7.2.9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19", "versionEndExcluding": "7.3-rc5"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/68930f8d40ab4c10ca3b019f076136758fd100a8"}, {"url": "https://git.kernel.org/stable/c/c251ed48bd9063cf7de6049421e78b6de989060f"}, {"url": "https://git.kernel.org/stable/c/798a61edbc436cacdb659927d067368eeb1e30e2"}, {"url": "https://git.kernel.org/stable/c/6e271f093d15d323f42de26f66556af53fa8e19f"}, {"url": "https://git.kernel.org/stable/c/87ce4b53b7436b50fc984f0a6afaf77f68ac5573"}, {"url": "https://git.kernel.org/stable/c/50e80e2bb5e2be8515205b9c496b9640ddefa434"}], "title": "bpf: Skip unsettled links in link iterator", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["kernel/bpf/syscall.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "68930f8d40ab4c10ca3b019f076136758fd100a8", "status": "affected", "version": "9f88361273082825d9f0d13a543d49f9fa0d44a8", "versionType": "git"}, {"lessThan": "c251ed48bd9063cf7de6049421e78b6de989060f", "status": "affected", "version": "9f88361273082825d9f0d13a543d49f9fa0d44a8", "versionType": "git"}, {"lessThan": "798a61edbc436cacdb659927d067368eeb1e30e2", "status": "affected", "version": "9f88361273082825d9f0d13a543d49f9fa0d44a8", "versionType": "git"}, {"lessThan": "6e271f093d15d323f42de26f66556af53fa8e19f", "status": "affected", "version": "9f88361273082825d9f0d13a543d49f9fa0d44a8", "versionType": "git"}, {"lessThan": "87ce4b53b7436b50fc984f0a6afaf77f68ac5573", "status": "affected", "version": "9f88361273082825d9f0d13a543d49f9fa0d44a8", "versionType": "git"}, {"lessThan": "50e80e2bb5e2be8515205b9c496b9640ddefa434", "status": "affected", "version": "9f88361273082825d9f0d13a543d49f9fa0d44a8", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["kernel/bpf/syscall.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.19"}, {"lessThan": "5.19", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.189", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.158", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.112", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.55", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.9", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3-rc5", "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\nbpf: Skip unsettled links in link iterator\n\nbpf_link_prime() inserts a link into link_idr before anon_inode_getfile()\nsucceeds and before bpf_link_settle() publishes the ID in link->id.\nbpf_link_by_id() treats such an ID-zero link as unsettled, but the link\niterator takes a reference without this check.\n\nIf anon_inode_getfile() then fails, the creator removes the ID and frees\nits still-private link directly. The iterator is left with a dangling\nreference and its next bpf_link_put() accesses freed memory.\n\nTreat ID-zero entries as transient in bpf_link_get_curr_or_next(), just as\nbpf_link_by_id() does.\n\n BUG: KASAN: slab-use-after-free in bpf_link_put\n Write of size 8 by task exp/384\n Call Trace:\n bpf_link_put kernel/bpf/syscall.c:3372\n bpf_link_seq_next kernel/bpf/link_iter.c:33\n bpf_seq_read kernel/bpf/bpf_iter.c:158\n vfs_read fs/read_write.c:572\n ksys_read fs/read_write.c:716\n do_syscall_64 arch/x86/entry/syscall_64.c:84\n entry_SYSCALL_64_after_hwframe arch/x86/entry/entry_64.S:121\n Kernel panic - not syncing: KASAN: panic_on_warn set ..."}], "id": "CVE-2026-98378", "lastModified": "2026-10-09T08:16:56.123", "metrics": {}, "published": "2026-10-09T08:16:56.123", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/50e80e2bb5e2be8515205b9c496b9640ddefa434"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/68930f8d40ab4c10ca3b019f076136758fd100a8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6e271f093d15d323f42de26f66556af53fa8e19f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/798a61edbc436cacdb659927d067368eeb1e30e2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/87ce4b53b7436b50fc984f0a6afaf77f68ac5573"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c251ed48bd9063cf7de6049421e78b6de989060f"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9f88361273082825d9f0d13a543d49f9fa0d44a8,68930f8d40ab4c10ca3b019f076136758fd100a8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9f88361273082825d9f0d13a543d49f9fa0d44a8,c251ed48bd9063cf7de6049421e78b6de989060f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9f88361273082825d9f0d13a543d49f9fa0d44a8,798a61edbc436cacdb659927d067368eeb1e30e2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9f88361273082825d9f0d13a543d49f9fa0d44a8,6e271f093d15d323f42de26f66556af53fa8e19f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9f88361273082825d9f0d13a543d49f9fa0d44a8,87ce4b53b7436b50fc984f0a6afaf77f68ac5573)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9f88361273082825d9f0d13a543d49f9fa0d44a8,50e80e2bb5e2be8515205b9c496b9640ddefa434)"}}], "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": "5.19"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.19)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.189,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.158,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.112,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.55,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.9,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc5,*]"}}], "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": "2026-10-09T10:00:05.375391+00:00", "updated": "2026-10-09T15:45:07.268198+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-416"]}