CVE-2026-23243

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-23243", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-01-13T15:37:45.989Z", "datePublished": "2026-03-18T10:05:05.826Z", "dateUpdated": "2026-11-10T12:42:01.859Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:20:53.089Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/umad: Reject negative data_len in ib_umad_write\n\nib_umad_write computes data_len from user-controlled count and the\nMAD header sizes. With a mismatched user MAD header size and RMPP\nheader length, data_len can become negative and reach ib_create_send_mad().\nThis can make the padding calculation exceed the segment size and trigger\nan out-of-bounds memset in alloc_send_rmpp_list().\n\nAdd an explicit check to reject negative data_len before creating the\nsend buffer.\n\nKASAN splat:\n[ 211.363464] BUG: KASAN: slab-out-of-bounds in ib_create_send_mad+0xa01/0x11b0\n[ 211.364077] Write of size 220 at addr ffff88800c3fa1f8 by task spray_thread/102\n[ 211.365867] ib_create_send_mad+0xa01/0x11b0\n[ 211.365887] ib_umad_write+0x853/0x1c80"}], "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 vulnerability is in ib_umad_write(), the write handler for /dev/infiniband/umadX character device files, requiring local system access to open and write to the device.\nAC:L - The attacker reliably controls the count parameter passed to write() and can craft input to make data_len negative, triggering the OOB write deterministically with no race or special conditions.\nPR:L - The /dev/infiniband/umadX device has no capability checks in the code path. On RDMA-enabled systems (HPC clusters, cloud servers), udev rules commonly grant access to unprivileged users. An ioctl to register a MAD agent is needed first but requires no special privileges.\nUI:N - No user interaction is required. The attacker directly opens the device file, registers a MAD agent via ioctl, and triggers the bug by writing crafted data.\nS:U - The vulnerability operates within kernel space and does not cross a security boundary such as a VM or sandbox escape.\nC:H - The out-of-bounds memset write into slab memory can corrupt adjacent heap objects. In a controlled exploit, this memory corruption can be leveraged via heap spraying to gain arbitrary read primitives.\nI:H - KASAN confirmed a slab out-of-bounds write of 220 bytes. This heap corruption can be exploited to overwrite adjacent slab objects, enabling arbitrary write primitives and potential code execution.\nA:H - The out-of-bounds write corrupts slab memory, causing kernel crashes as confirmed by the KASAN splat. This is a reliable kernel panic/oops."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/infiniband/core/user_mad.c"], "versions": [{"version": "2be8e3ee8efd6f99ce454115c29d09750915021a", "lessThan": "1371ef6b1ecf3676b8942f5dfb3634fb0648128e", "status": "affected", "versionType": "git"}, {"version": "2be8e3ee8efd6f99ce454115c29d09750915021a", "lessThan": "362e45fd9069ffa1523f9f1633b606ebf72060d7", "status": "affected", "versionType": "git"}, {"version": "2be8e3ee8efd6f99ce454115c29d09750915021a", "lessThan": "6eb2919474ca105c5b13d19574e25f0ddcf19ca2", "status": "affected", "versionType": "git"}, {"version": "2be8e3ee8efd6f99ce454115c29d09750915021a", "lessThan": "a6a3e4af10993cb9e4b8f0548680aba0ab5f3b0d", "status": "affected", "versionType": "git"}, {"version": "2be8e3ee8efd6f99ce454115c29d09750915021a", "lessThan": "9c80d688f402539dfc8f336de1380d6b4ee14316", "status": "affected", "versionType": "git"}, {"version": "2be8e3ee8efd6f99ce454115c29d09750915021a", "lessThan": "205955f29c26330b1dc7fdeadd5bb97c38e26f56", "status": "affected", "versionType": "git"}, {"version": "2be8e3ee8efd6f99ce454115c29d09750915021a", "lessThan": "52ab82cc5cf8ada5c3fb6ffe8f32fdb2fc27a34b", "status": "affected", "versionType": "git"}, {"version": "2be8e3ee8efd6f99ce454115c29d09750915021a", "lessThan": "5551b02fdbfd85a325bb857f3a8f9c9f33397ed2", "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/core/user_mad.c"], "versions": [{"version": "2.6.24", "status": "affected"}, {"version": "0", "lessThan": "2.6.24", "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", "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": "2.6.24", "versionEndExcluding": "5.10.252"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.24", "versionEndExcluding": "5.15.202"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.24", "versionEndExcluding": "6.1.165"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.24", "versionEndExcluding": "6.6.128"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.24", "versionEndExcluding": "6.12.75"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.24", "versionEndExcluding": "6.18.14"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.24", "versionEndExcluding": "6.19.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": 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The vulnerability is in ib_umad_write(), the write handler for /dev/infiniband/umadX character device files, requiring local system access to open and write to the device.\nAC:L - The attacker reliably controls the count parameter passed to write() and can craft input to make data_len negative, triggering the OOB write deterministically with no race or special conditions.\nPR:L - The /dev/infiniband/umadX device has no capability checks in the code path. On RDMA-enabled systems (HPC clusters, cloud servers), udev rules commonly grant access to unprivileged users. An ioctl to register a MAD agent is needed first but requires no special privileges.\nUI:N - No user interaction is required. The attacker directly opens the device file, registers a MAD agent via ioctl, and triggers the bug by writing crafted data.\nS:U - The vulnerability operates within kernel space and does not cross a security boundary such as a VM or sandbox escape.\nC:H - The out-of-bounds memset write into slab memory can corrupt adjacent heap objects. In a controlled exploit, this memory corruption can be leveraged via heap spraying to gain arbitrary read primitives.\nI:H - KASAN confirmed a slab out-of-bounds write of 220 bytes. This heap corruption can be exploited to overwrite adjacent slab objects, enabling arbitrary write primitives and potential code execution.\nA:H - The out-of-bounds write corrupts slab memory, causing kernel crashes as confirmed by the KASAN splat. This is a reliable kernel panic/oops."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "2be8e3ee8efd6f99ce454115c29d09750915021a", "lessThan": "1371ef6b1ecf3676b8942f5dfb3634fb0648128e", "versionType": "git"}, {"status": "affected", "version": "2be8e3ee8efd6f99ce454115c29d09750915021a", "lessThan": "362e45fd9069ffa1523f9f1633b606ebf72060d7", "versionType": "git"}, {"status": "affected", "version": "2be8e3ee8efd6f99ce454115c29d09750915021a", "lessThan": "6eb2919474ca105c5b13d19574e25f0ddcf19ca2", "versionType": "git"}, {"status": "affected", "version": "2be8e3ee8efd6f99ce454115c29d09750915021a", "lessThan": "a6a3e4af10993cb9e4b8f0548680aba0ab5f3b0d", "versionType": "git"}, {"status": "affected", "version": "2be8e3ee8efd6f99ce454115c29d09750915021a", "lessThan": "9c80d688f402539dfc8f336de1380d6b4ee14316", "versionType": "git"}, {"status": "affected", "version": "2be8e3ee8efd6f99ce454115c29d09750915021a", "lessThan": "205955f29c26330b1dc7fdeadd5bb97c38e26f56", "versionType": "git"}, {"status": "affected", "version": "2be8e3ee8efd6f99ce454115c29d09750915021a", "lessThan": "52ab82cc5cf8ada5c3fb6ffe8f32fdb2fc27a34b", "versionType": "git"}, {"status": "affected", "version": "2be8e3ee8efd6f99ce454115c29d09750915021a", "lessThan": "5551b02fdbfd85a325bb857f3a8f9c9f33397ed2", "versionType": "git"}], "programFiles": ["drivers/infiniband/core/user_mad.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "2.6.24"}, {"status": "unaffected", "version": "0", "lessThan": "2.6.24", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.252", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.202", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.165", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.128", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.75", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.14", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "6.19.4", "versionType": "semver", "lessThanOrEqual": "6.19.*"}, {"status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/infiniband/core/user_mad.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/1371ef6b1ecf3676b8942f5dfb3634fb0648128e"}, {"url": "https://git.kernel.org/stable/c/362e45fd9069ffa1523f9f1633b606ebf72060d7"}, {"url": "https://git.kernel.org/stable/c/6eb2919474ca105c5b13d19574e25f0ddcf19ca2"}, {"url": "https://git.kernel.org/stable/c/a6a3e4af10993cb9e4b8f0548680aba0ab5f3b0d"}, {"url": "https://git.kernel.org/stable/c/9c80d688f402539dfc8f336de1380d6b4ee14316"}, {"url": "https://git.kernel.org/stable/c/205955f29c26330b1dc7fdeadd5bb97c38e26f56"}, {"url": "https://git.kernel.org/stable/c/52ab82cc5cf8ada5c3fb6ffe8f32fdb2fc27a34b"}, {"url": "https://git.kernel.org/stable/c/5551b02fdbfd85a325bb857f3a8f9c9f33397ed2"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/umad: Reject negative data_len in ib_umad_write\n\nib_umad_write computes data_len from user-controlled count and the\nMAD header sizes. With a mismatched user MAD header size and RMPP\nheader length, data_len can become negative and reach ib_create_send_mad().\nThis can make the padding calculation exceed the segment size and trigger\nan out-of-bounds memset in alloc_send_rmpp_list().\n\nAdd an explicit check to reject negative data_len before creating the\nsend buffer.\n\nKASAN splat:\n[ 211.363464] BUG: KASAN: slab-out-of-bounds in ib_create_send_mad+0xa01/0x11b0\n[ 211.364077] Write of size 220 at addr ffff88800c3fa1f8 by task spray_thread/102\n[ 211.365867] ib_create_send_mad+0xa01/0x11b0\n[ 211.365887] ib_umad_write+0x853/0x1c80"}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.252", "versionStartIncluding": "2.6.24"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.202", "versionStartIncluding": "2.6.24"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.165", "versionStartIncluding": "2.6.24"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.128", "versionStartIncluding": "2.6.24"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.75", "versionStartIncluding": "2.6.24"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.18.14", "versionStartIncluding": "2.6.24"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.19.4", "versionStartIncluding": "2.6.24"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.0", "versionStartIncluding": "2.6.24"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:20:53.089Z"}}}, "cveMetadata": {"cveId": "CVE-2026-23243", "state": "PUBLISHED", "dateUpdated": "2026-11-10T12:42:01.859Z", "dateReserved": "2026-01-13T15:37:45.989Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2026-03-18T10:05:05.826Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

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{"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.202", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.165", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.128", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.75", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.14", "versionType": "semver"}, {"lessThanOrEqual": "6.19.*", "status": "unaffected", "version": "6.19.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"affectedData": [{"defaultStatus": "unknown", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)", "vendor": "Siemens", "versions": [{"lessThan": "*", "status": "affected", "version": "V3.1.6", 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CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)", "vendor": "Siemens", "versions": [{"lessThan": "*", "status": "affected", "version": "V3.1.7", "versionType": "custom"}]}], "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "2373214A-3D90-42DB-82C4-E1879374793C", "versionEndExcluding": "5.10.252", "versionStartIncluding": "2.6.24.1", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "4002FC2B-1456-4666-B240-0EBF590C4671", "versionEndExcluding": "5.15.202", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "797C7F46-D0BE-4FB8-A502-C5EF8E6B6654", "versionEndExcluding": "6.1.165", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "851E9353-6C09-4CC9-877E-E09DB164A3C2", "versionEndExcluding": "6.6.128", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "BCE16369-98ED-41CF-8995-DFDC10B288D2", "versionEndExcluding": "6.12.75", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "BF463CB7-1F58-4607-B847-77ED23E4B9B7", "versionEndExcluding": "6.18.14", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "672A3E79-EC03-479D-8503-361DFBDC8092", "versionEndExcluding": "6.19.4", "versionStartIncluding": "6.19", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:2.6.24:-:*:*:*:*:*:*", "matchCriteriaId": "6F3E61F3-1CF1-4176-94CD-89A408BCFC96", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/umad: Reject negative data_len in ib_umad_write\n\nib_umad_write computes data_len from user-controlled count and the\nMAD header sizes. With a mismatched user MAD header size and RMPP\nheader length, data_len can become negative and reach ib_create_send_mad().\nThis can make the padding calculation exceed the segment size and trigger\nan out-of-bounds memset in alloc_send_rmpp_list().\n\nAdd an explicit check to reject negative data_len before creating the\nsend buffer.\n\nKASAN splat:\n[ 211.363464] BUG: KASAN: slab-out-of-bounds in ib_create_send_mad+0xa01/0x11b0\n[ 211.364077] Write of size 220 at addr ffff88800c3fa1f8 by task spray_thread/102\n[ 211.365867] ib_create_send_mad+0xa01/0x11b0\n[ 211.365887] ib_umad_write+0x853/0x1c80"}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nRDMA/umad: Rechazar data_len negativo en ib_umad_write\n\nib_umad_write calcula data_len a partir de un conteo controlado por el usuario y los tama\u00f1os de encabezado MAD. Con un tama\u00f1o de encabezado MAD de usuario no coincidente y una longitud de encabezado RMPP, data_len puede volverse negativo y alcanzar ib_create_send_mad(). Esto puede hacer que el c\u00e1lculo de relleno exceda el tama\u00f1o del segmento y desencadenar un memset fuera de l\u00edmites en alloc_send_rmpp_list().\n\nSe a\u00f1ade una verificaci\u00f3n expl\u00edcita para rechazar data_len negativo antes de crear el b\u00fafer de env\u00edo.\n\nKASAN splat:\n[ 211.363464] ERROR: KASAN: slab-out-of-bounds en ib_create_send_mad+0xa01/0x11b0\n[ 211.364077] Escritura de tama\u00f1o 220 en la direcci\u00f3n ffff88800c3fa1f8 por la tarea spray_thread/102\n[ 211.365867] ib_create_send_mad+0xa01/0x11b0\n[ 211.365887] ib_umad_write+0x853/0x1c80"}], "id": "CVE-2026-23243", "lastModified": "2026-11-10T13:18:37.183", "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-2026-23243", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-06-17T17:47:24.163717Z", "version": "2.0.3"}}]}, "published": "2026-03-18T11:16:16.090", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1371ef6b1ecf3676b8942f5dfb3634fb0648128e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/205955f29c26330b1dc7fdeadd5bb97c38e26f56"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/362e45fd9069ffa1523f9f1633b606ebf72060d7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/52ab82cc5cf8ada5c3fb6ffe8f32fdb2fc27a34b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5551b02fdbfd85a325bb857f3a8f9c9f33397ed2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6eb2919474ca105c5b13d19574e25f0ddcf19ca2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9c80d688f402539dfc8f336de1380d6b4ee14316"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a6a3e4af10993cb9e4b8f0548680aba0ab5f3b0d"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-082556.html"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-190"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: RDMA/umad: Reject negative data_len in ib_umad_write", "id": "2448594", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2448594"}, "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"}, "cwe": "CWE-131", "details": ["No description is available for this CVE."], "name": "CVE-2026-23243", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Under investigation", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "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-2026-23243\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-23243\nhttps://lore.kernel.org/linux-cve-announce/2026031816-CVE-2026-23243-b88e@gregkh/T"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2be8e3ee8efd6f99ce454115c29d09750915021a,1371ef6b1ecf3676b8942f5dfb3634fb0648128e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2be8e3ee8efd6f99ce454115c29d09750915021a,362e45fd9069ffa1523f9f1633b606ebf72060d7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2be8e3ee8efd6f99ce454115c29d09750915021a,6eb2919474ca105c5b13d19574e25f0ddcf19ca2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2be8e3ee8efd6f99ce454115c29d09750915021a,a6a3e4af10993cb9e4b8f0548680aba0ab5f3b0d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2be8e3ee8efd6f99ce454115c29d09750915021a,9c80d688f402539dfc8f336de1380d6b4ee14316)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2be8e3ee8efd6f99ce454115c29d09750915021a,205955f29c26330b1dc7fdeadd5bb97c38e26f56)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2be8e3ee8efd6f99ce454115c29d09750915021a,52ab82cc5cf8ada5c3fb6ffe8f32fdb2fc27a34b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2be8e3ee8efd6f99ce454115c29d09750915021a,5551b02fdbfd85a325bb857f3a8f9c9f33397ed2)"}}], "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": "semver", "value": "2.6.24"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,2.6.24)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.252,5.10.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.202,5.15.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.165,6.1.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.128,6.6.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.75,6.12.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.14,6.18.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.4,6.19.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.0-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": "2026-03-18T12:12:45.989612+00:00", "updated": "2026-10-19T21:15:04.070104+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}