{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-23242", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-01-13T15:37:45.989Z", "datePublished": "2026-03-18T10:05:05.108Z", "dateUpdated": "2026-03-18T10:05:05.108Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-03-18T10:05:05.108Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/siw: Fix potential NULL pointer dereference in header processing\n\nIf siw_get_hdr() returns -EINVAL before set_rx_fpdu_context(),\nqp->rx_fpdu can be NULL. The error path in siw_tcp_rx_data()\ndereferences qp->rx_fpdu->more_ddp_segs without checking, which\nmay lead to a NULL pointer deref. Only check more_ddp_segs when\nrx_fpdu is present.\n\nKASAN splat:\n[ 101.384271] KASAN: null-ptr-deref in range [0x00000000000000c0-0x00000000000000c7]\n[ 101.385869] RIP: 0010:siw_tcp_rx_data+0x13ad/0x1e50"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/infiniband/sw/siw/siw_qp_rx.c"], "versions": [{"version": "8b6a361b8c482f22ac99c3273285ff16b23fba91", "lessThan": "ab61841633d10e56a58c1493a262f0d02dba2f5e", "status": "affected", "versionType": "git"}, {"version": "8b6a361b8c482f22ac99c3273285ff16b23fba91", "lessThan": "8564dcc12fbb372d984ab45768cae9335777b274", "status": "affected", "versionType": "git"}, {"version": "8b6a361b8c482f22ac99c3273285ff16b23fba91", "lessThan": "ab957056192d6bd068b3759cb2077d859cca01f0", "status": "affected", "versionType": "git"}, {"version": "8b6a361b8c482f22ac99c3273285ff16b23fba91", "lessThan": "ffba40b67663567481fa8a1ed5d2da36897c175d", "status": "affected", "versionType": "git"}, {"version": "8b6a361b8c482f22ac99c3273285ff16b23fba91", "lessThan": "87b7a036d2c73d5bb3ae2d47dee23de465db3355", "status": "affected", "versionType": "git"}, {"version": "8b6a361b8c482f22ac99c3273285ff16b23fba91", "lessThan": "714c99e1dc8f85f446e05be02ba83972e981a817", "status": "affected", "versionType": "git"}, {"version": "8b6a361b8c482f22ac99c3273285ff16b23fba91", "lessThan": "ce025f7f5d070596194315eb2e4e89d568b8a755", "status": "affected", "versionType": "git"}, {"version": "8b6a361b8c482f22ac99c3273285ff16b23fba91", "lessThan": "14ab3da122bd18920ad57428f6cf4fade8385142", "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/infiniband/sw/siw/siw_qp_rx.c"], "versions": [{"version": "5.3", "status": "affected"}, {"version": "0", "lessThan": "5.3", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.252", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.202", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.165", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.128", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.75", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.14", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.4", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0-rc1", "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": "5.3", "versionEndExcluding": "5.10.252"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "5.15.202"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.1.165"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.6.128"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.12.75"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.18.14"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.19.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "7.0-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/ab61841633d10e56a58c1493a262f0d02dba2f5e"}, {"url": "https://git.kernel.org/stable/c/8564dcc12fbb372d984ab45768cae9335777b274"}, {"url": "https://git.kernel.org/stable/c/ab957056192d6bd068b3759cb2077d859cca01f0"}, {"url": "https://git.kernel.org/stable/c/ffba40b67663567481fa8a1ed5d2da36897c175d"}, {"url": "https://git.kernel.org/stable/c/87b7a036d2c73d5bb3ae2d47dee23de465db3355"}, {"url": "https://git.kernel.org/stable/c/714c99e1dc8f85f446e05be02ba83972e981a817"}, {"url": "https://git.kernel.org/stable/c/ce025f7f5d070596194315eb2e4e89d568b8a755"}, {"url": "https://git.kernel.org/stable/c/14ab3da122bd18920ad57428f6cf4fade8385142"}], "title": "RDMA/siw: Fix potential NULL pointer dereference in header processing", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/siw: Fix potential NULL pointer dereference in header processing\n\nIf siw_get_hdr() returns -EINVAL before set_rx_fpdu_context(),\nqp->rx_fpdu can be NULL. The error path in siw_tcp_rx_data()\ndereferences qp->rx_fpdu->more_ddp_segs without checking, which\nmay lead to a NULL pointer deref. Only check more_ddp_segs when\nrx_fpdu is present.\n\nKASAN splat:\n[ 101.384271] KASAN: null-ptr-deref in range [0x00000000000000c0-0x00000000000000c7]\n[ 101.385869] RIP: 0010:siw_tcp_rx_data+0x13ad/0x1e50"}], "id": "CVE-2026-23242", "lastModified": "2026-03-18T14:52:44.227", "metrics": {}, "published": "2026-03-18T11:16:15.887", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/14ab3da122bd18920ad57428f6cf4fade8385142"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/714c99e1dc8f85f446e05be02ba83972e981a817"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8564dcc12fbb372d984ab45768cae9335777b274"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/87b7a036d2c73d5bb3ae2d47dee23de465db3355"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ab61841633d10e56a58c1493a262f0d02dba2f5e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ab957056192d6bd068b3759cb2077d859cca01f0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ce025f7f5d070596194315eb2e4e89d568b8a755"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ffba40b67663567481fa8a1ed5d2da36897c175d"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: RDMA/siw: Fix potential NULL pointer dereference in header processing", "id": "2448602", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2448602"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2026-23242", "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": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-03-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-23242\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-23242\nhttps://lore.kernel.org/linux-cve-announce/2026031816-CVE-2026-23242-a8b5@gregkh/T"], "threat_severity": "Moderate"}