CVE-2026-80982

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-80982", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-26T14:34:25.811Z", "datePublished": "2026-09-11T19:42:42.243Z", "dateUpdated": "2026-10-19T08:46:06.717Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T08:46:06.717Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: fix use-after-free in smc_rx_pipe_buf_release()\n\nsmc_rx_splice() hands RMB pages to a pipe and takes a socket reference\nper entry so the smc_sock stays alive until the reader finishes. The\nconnection does not: a concurrent close runs smc_conn_free(), which\nreleases the receive buffer back to the link group pool.\n\nsmc_rx_pipe_buf_release() tests sk_state before taking the socket lock.\nThe state can change between the test and the lock, and\nsmc_rx_update_cons() then dereferences conn->rmb_desc and walks\nconn->lgr, which smc_conn_free() has already released. On the\nis_reg_err path smcr_buf_unuse() frees the descriptor outright, so\nthis is a use-after-free.\n\nTake the socket lock first and test conn->freed instead.\nsmc_conn_free() sets that flag before releasing anything, and every\ncaller holds the socket lock. The two paths exclude each other: either\nthe pipe release runs first with everything valid, or it sees the flag\nand skips the update."}], "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 UAF is in smc_rx_pipe_buf_release(), a pipe_buf_ops.release callback reached only via local splice() on an AF_SMC socket (syscall -> sock_splice_read -> smc_splice_read -> smc_rx_recvmsg -> smc_rx_splice). A remote SMC peer can supply RMB data or close the connection, but cannot invoke the splice pipe-buffer release path by itself.\nAC:L - The attacker controls both sides of the TOCTOU: one thread splices SMC Rx data into a pipe and then reads or closes it (unlocked sk_state check, then lock_sock), while another closes the socket so smc_conn_free() drops rmb_desc/lgr in that window. The race is fully attacker-driven and retryable.\nPR:L - socket(AF_SMC) or IPPROTO_SMC, connect/listen (loopback-ism, ISM, or RoCE), splice(2), and close(2) have no capability checks and are available to an unprivileged local user. User-namespace admin rights are not required.\nUI:N - A single unprivileged process can act as both SMC endpoints on loopback or a local fabric, splice received data into a pipe, and race close() against pipe-buffer release. No victim user action is required.\nS:U - The corruption is confined to kernel objects (smc_buf_desc, smc_link_group) in the same kernel security authority. This is standard kernel memory corruption, not a VM, IOMMU, or sandbox boundary escape.\nC:H - smc_rx_update_cons() dereferences conn->rmb_desc and walks conn->lgr after smc_conn_free()/smcr_buf_unuse() released them; on the is_reg_err path smc_buf_free() frees the descriptor outright. Per kernel CVSS guidance, this UAF of heap objects enables arbitrary kernel-memory disclosure.\nI:H - The same UAF writes consumer cursors and may call smc_tx_consumer_update() -> smc_cdc_get_slot_and_msg_send() or queue_delayed_work on conn->lgr->tx_wq after the link group is freed, enabling heap reuse, arbitrary write, and control-flow hijack.\nA:H - Dereferencing the freed rmb_desc or link group produces a kernel oops or panic. Use-after-free on this path crashes the host even when not fully exploited, and the attacker can repeat the race at will."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/smc/smc_rx.c"], "versions": [{"version": "9014db202cb764b8e14c53e7bacc81f9a1a2ba7f", "lessThan": "dadd97c8296b23aa816e91ed70041820ae087baa", "status": "affected", "versionType": "git"}, {"version": "9014db202cb764b8e14c53e7bacc81f9a1a2ba7f", "lessThan": "df441f3efbb50eb0f120b8de4bf441c31fb0551d", "status": "affected", "versionType": "git"}, {"version": "9014db202cb764b8e14c53e7bacc81f9a1a2ba7f", "lessThan": "6a644a7340df978785f3109d1e0726a982ce2c6f", "status": "affected", "versionType": "git"}, {"version": "9014db202cb764b8e14c53e7bacc81f9a1a2ba7f", "lessThan": "0761e49aa78c2f1362511054c6e9670653858837", "status": "affected", "versionType": "git"}, {"version": "9014db202cb764b8e14c53e7bacc81f9a1a2ba7f", "lessThan": "0926f59ca0f94120895b92180c636a48d0ed3a6d", "status": "affected", "versionType": "git"}, {"version": "9014db202cb764b8e14c53e7bacc81f9a1a2ba7f", "lessThan": "c924884743e948e25625b7fbf3ee2a9325a204a7", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/smc/smc_rx.c"], "versions": [{"version": "4.18", "status": "affected"}, {"version": "0", "lessThan": "4.18", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.188", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.157", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.109", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.50", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.4", "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": "4.18", "versionEndExcluding": "6.1.188"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "6.6.157"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "6.12.109"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "6.18.50"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "7.2.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/dadd97c8296b23aa816e91ed70041820ae087baa"}, {"url": "https://git.kernel.org/stable/c/df441f3efbb50eb0f120b8de4bf441c31fb0551d"}, {"url": "https://git.kernel.org/stable/c/6a644a7340df978785f3109d1e0726a982ce2c6f"}, {"url": "https://git.kernel.org/stable/c/0761e49aa78c2f1362511054c6e9670653858837"}, {"url": "https://git.kernel.org/stable/c/0926f59ca0f94120895b92180c636a48d0ed3a6d"}, {"url": "https://git.kernel.org/stable/c/c924884743e948e25625b7fbf3ee2a9325a204a7"}], "title": "net/smc: fix use-after-free in smc_rx_pipe_buf_release()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-80982", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T19:21:50.317154Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-16T19:26:37.540Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-80982", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T19:21:50.317154Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-16T19:21:50.853Z"}}], "cna": {"title": "net/smc: fix use-after-free in smc_rx_pipe_buf_release()", "metrics": [{"cvssV3_1": {"version": "3.1", "baseScore": 7.8, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}, "scenarios": [{"lang": "en", "value": "AV:L - The UAF is in smc_rx_pipe_buf_release(), a pipe_buf_ops.release callback reached only via local splice() on an AF_SMC socket (syscall -> sock_splice_read -> smc_splice_read -> smc_rx_recvmsg -> smc_rx_splice). A remote SMC peer can supply RMB data or close the connection, but cannot invoke the splice pipe-buffer release path by itself.\nAC:L - The attacker controls both sides of the TOCTOU: one thread splices SMC Rx data into a pipe and then reads or closes it (unlocked sk_state check, then lock_sock), while another closes the socket so smc_conn_free() drops rmb_desc/lgr in that window. The race is fully attacker-driven and retryable.\nPR:L - socket(AF_SMC) or IPPROTO_SMC, connect/listen (loopback-ism, ISM, or RoCE), splice(2), and close(2) have no capability checks and are available to an unprivileged local user. User-namespace admin rights are not required.\nUI:N - A single unprivileged process can act as both SMC endpoints on loopback or a local fabric, splice received data into a pipe, and race close() against pipe-buffer release. No victim user action is required.\nS:U - The corruption is confined to kernel objects (smc_buf_desc, smc_link_group) in the same kernel security authority. This is standard kernel memory corruption, not a VM, IOMMU, or sandbox boundary escape.\nC:H - smc_rx_update_cons() dereferences conn->rmb_desc and walks conn->lgr after smc_conn_free()/smcr_buf_unuse() released them; on the is_reg_err path smc_buf_free() frees the descriptor outright. Per kernel CVSS guidance, this UAF of heap objects enables arbitrary kernel-memory disclosure.\nI:H - The same UAF writes consumer cursors and may call smc_tx_consumer_update() -> smc_cdc_get_slot_and_msg_send() or queue_delayed_work on conn->lgr->tx_wq after the link group is freed, enabling heap reuse, arbitrary write, and control-flow hijack.\nA:H - Dereferencing the freed rmb_desc or link group produces a kernel oops or panic. Use-after-free on this path crashes the host even when not fully exploited, and the attacker can repeat the race at will."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "9014db202cb764b8e14c53e7bacc81f9a1a2ba7f", "lessThan": "dadd97c8296b23aa816e91ed70041820ae087baa", "versionType": "git"}, {"status": "affected", "version": "9014db202cb764b8e14c53e7bacc81f9a1a2ba7f", "lessThan": "df441f3efbb50eb0f120b8de4bf441c31fb0551d", "versionType": "git"}, {"status": "affected", "version": "9014db202cb764b8e14c53e7bacc81f9a1a2ba7f", "lessThan": "6a644a7340df978785f3109d1e0726a982ce2c6f", "versionType": "git"}, {"status": "affected", "version": "9014db202cb764b8e14c53e7bacc81f9a1a2ba7f", "lessThan": "0761e49aa78c2f1362511054c6e9670653858837", "versionType": "git"}, {"status": "affected", "version": "9014db202cb764b8e14c53e7bacc81f9a1a2ba7f", "lessThan": "0926f59ca0f94120895b92180c636a48d0ed3a6d", "versionType": "git"}, {"status": "affected", "version": "9014db202cb764b8e14c53e7bacc81f9a1a2ba7f", "lessThan": "c924884743e948e25625b7fbf3ee2a9325a204a7", "versionType": "git"}], "programFiles": ["net/smc/smc_rx.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4.18"}, {"status": "unaffected", "version": "0", "lessThan": "4.18", "versionType": "semver"}, {"status": "unaffected", "version": "6.1.188", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.157", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.109", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.50", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.2.4", "versionType": "semver", "lessThanOrEqual": "7.2.*"}, {"status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/smc/smc_rx.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/dadd97c8296b23aa816e91ed70041820ae087baa"}, {"url": "https://git.kernel.org/stable/c/df441f3efbb50eb0f120b8de4bf441c31fb0551d"}, {"url": "https://git.kernel.org/stable/c/6a644a7340df978785f3109d1e0726a982ce2c6f"}, {"url": "https://git.kernel.org/stable/c/0761e49aa78c2f1362511054c6e9670653858837"}, {"url": "https://git.kernel.org/stable/c/0926f59ca0f94120895b92180c636a48d0ed3a6d"}, {"url": "https://git.kernel.org/stable/c/c924884743e948e25625b7fbf3ee2a9325a204a7"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: fix use-after-free in smc_rx_pipe_buf_release()\n\nsmc_rx_splice() hands RMB pages to a pipe and takes a socket reference\nper entry so the smc_sock stays alive until the reader finishes. The\nconnection does not: a concurrent close runs smc_conn_free(), which\nreleases the receive buffer back to the link group pool.\n\nsmc_rx_pipe_buf_release() tests sk_state before taking the socket lock.\nThe state can change between the test and the lock, and\nsmc_rx_update_cons() then dereferences conn->rmb_desc and walks\nconn->lgr, which smc_conn_free() has already released. On the\nis_reg_err path smcr_buf_unuse() frees the descriptor outright, so\nthis is a use-after-free.\n\nTake the socket lock first and test conn->freed instead.\nsmc_conn_free() sets that flag before releasing anything, and every\ncaller holds the socket lock. The two paths exclude each other: either\nthe pipe release runs first with everything valid, or it sees the flag\nand skips the update."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.188", "versionStartIncluding": "4.18"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.157", "versionStartIncluding": "4.18"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.109", "versionStartIncluding": "4.18"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.18.50", "versionStartIncluding": "4.18"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.2.4", "versionStartIncluding": "4.18"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.3", "versionStartIncluding": "4.18"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T08:46:06.717Z"}}}, "cveMetadata": {"cveId": "CVE-2026-80982", "state": "PUBLISHED", "dateUpdated": "2026-10-19T08:46:06.717Z", "dateReserved": "2026-08-26T14:34:25.811Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2026-09-11T19:42:42.243Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/smc/smc_rx.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "dadd97c8296b23aa816e91ed70041820ae087baa", "status": "affected", "version": "9014db202cb764b8e14c53e7bacc81f9a1a2ba7f", "versionType": "git"}, {"lessThan": "df441f3efbb50eb0f120b8de4bf441c31fb0551d", "status": "affected", "version": "9014db202cb764b8e14c53e7bacc81f9a1a2ba7f", "versionType": "git"}, {"lessThan": "6a644a7340df978785f3109d1e0726a982ce2c6f", "status": "affected", "version": "9014db202cb764b8e14c53e7bacc81f9a1a2ba7f", "versionType": "git"}, {"lessThan": "0761e49aa78c2f1362511054c6e9670653858837", "status": "affected", "version": "9014db202cb764b8e14c53e7bacc81f9a1a2ba7f", "versionType": "git"}, {"lessThan": "0926f59ca0f94120895b92180c636a48d0ed3a6d", "status": "affected", "version": "9014db202cb764b8e14c53e7bacc81f9a1a2ba7f", "versionType": "git"}, {"lessThan": "c924884743e948e25625b7fbf3ee2a9325a204a7", "status": "affected", "version": "9014db202cb764b8e14c53e7bacc81f9a1a2ba7f", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/smc/smc_rx.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.18"}, {"lessThan": "4.18", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.188", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.157", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.109", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.50", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.4", "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\nnet/smc: fix use-after-free in smc_rx_pipe_buf_release()\n\nsmc_rx_splice() hands RMB pages to a pipe and takes a socket reference\nper entry so the smc_sock stays alive until the reader finishes. The\nconnection does not: a concurrent close runs smc_conn_free(), which\nreleases the receive buffer back to the link group pool.\n\nsmc_rx_pipe_buf_release() tests sk_state before taking the socket lock.\nThe state can change between the test and the lock, and\nsmc_rx_update_cons() then dereferences conn->rmb_desc and walks\nconn->lgr, which smc_conn_free() has already released. On the\nis_reg_err path smcr_buf_unuse() frees the descriptor outright, so\nthis is a use-after-free.\n\nTake the socket lock first and test conn->freed instead.\nsmc_conn_free() sets that flag before releasing anything, and every\ncaller holds the socket lock. The two paths exclude each other: either\nthe pipe release runs first with everything valid, or it sees the flag\nand skips the update."}], "id": "CVE-2026-80982", "lastModified": "2026-10-19T09:17:30.643", "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"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-80982", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T19:21:50.317154Z", "version": "2.0.3"}}]}, "published": "2026-09-11T20:19:04.667", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0761e49aa78c2f1362511054c6e9670653858837"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0926f59ca0f94120895b92180c636a48d0ed3a6d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6a644a7340df978785f3109d1e0726a982ce2c6f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c924884743e948e25625b7fbf3ee2a9325a204a7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/dadd97c8296b23aa816e91ed70041820ae087baa"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/df441f3efbb50eb0f120b8de4bf441c31fb0551d"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Linux kernel: Use-after-free in SMC network protocol can lead to denial of service.", "id": "2532370", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2532370"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-825", "details": ["A flaw was found in the Linux kernel's Shared Memory Communications (SMC) network protocol. A race condition occurs when a network connection is closed while the system is still processing its receive buffer pages. This can lead to a use-after-free vulnerability, where the system attempts to access memory that has already been released. An attacker could potentially exploit this flaw to cause a denial of service, leading to system instability or crashes."], "name": "CVE-2026-80982", "public_date": "2026-09-11T19:42:42Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-80982\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-80982\nhttps://git.kernel.org/stable/c/0761e49aa78c2f1362511054c6e9670653858837\nhttps://git.kernel.org/stable/c/0926f59ca0f94120895b92180c636a48d0ed3a6d\nhttps://git.kernel.org/stable/c/6a644a7340df978785f3109d1e0726a982ce2c6f\nhttps://git.kernel.org/stable/c/c924884743e948e25625b7fbf3ee2a9325a204a7"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9014db202cb764b8e14c53e7bacc81f9a1a2ba7f,6a644a7340df978785f3109d1e0726a982ce2f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9014db202cb764b8e14c53e7bacc81f9a1a2ba7f,0761e49aa78c2f1362511054c6e9670653858837)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9014db202cb764b8e14c53e7bacc81f9a1a2ba7f,0926f59ca0f94120895b92180c636a48d0ed3a6d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9014db202cb764b8e14c53e7bacc81f9a1a2ba7f,c924884743e948e25625b7fbf3ee2a9325a204a7)"}}], "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": "4.18"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,4.18)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.12.109,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.50,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2.4,7.3.0)"}}, {"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": "2026-09-13T21:15:04.462447+00:00", "updated": "2026-09-21T02:30:08.195122+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}