CVE-2024-49889

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Fix a spelling error by the way.\n\nSame problem in ext4_ext_handle_unwritten_extents(). Since 'path' is only\nused in ext4_ext_show_leaf(), remove 'path' and use *ppath directly.\n\nThis issue is triggered only when EXT_DEBUG is defined and therefore does\nnot affect functionality."}], "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 vulnerable code is reached through ordinary local filesystem syscalls (write/pwrite, fallocate, direct I/O) that drive ext4_ext_map_blocks() over unwritten extents. No network protocol handler is involved; ext4 is a local filesystem subsystem.\nAC:L - The attacker fully controls the trigger \u2014 creating unwritten extents with fallocate() and issuing partial writes drives ext4_split_extent() through the reallocating path deterministically, and the fallthrough to ext4_ext_show_leaf() on the successful zeroout path requires no race or memory layout the attacker cannot influence.\nPR:L - Any unprivileged local user with write access to an ext4 filesystem \u2014 /tmp, /home, or any user-writable mount \u2014 can reach ext4_ext_map_blocks() via fallocate() and write(). No capability check, no CAP_SYS_ADMIN, and no user-namespace trick is needed along the path.\nUI:N - The attacker triggers the code path entirely through their own syscalls on their own files. No victim action such as mounting a crafted filesystem or opening a supplied file is required.\nS:U - The use-after-free is confined to the kernel's own slab memory and the ext4 extent path array, with all impact contained in the kernel security authority. No VM, IOMMU, or sandbox boundary is crossed.\nC:H - The stale path array is a freed slab object the attacker can reclaim and populate via heap spraying, giving control over path[depth].p_hdr and thus an attacker-directed kernel read whose contents \u2014 extent blocks, physical block numbers, and adjacent kernel data \u2014 are emitted to the debug log.\nI:H - Per use-after-free scoring guidance, control over the contents of a reclaimed freed object combined with an attacker-supplied eh_entries count driving an unbounded extent walk is treated as exploitable for memory corruption and control-flow influence rather than a bounded read.\nA:H - Dereferencing the freed path array yields a garbage extent header whose eh_entries can walk far past any valid mapping, producing an oops or panic in the ext4 write path. Any use-after-free reliably crashes the kernel even when not fully weaponized."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/ext4/extents.c"], "versions": [{"version": "dfe5080939ea4686b3414b5d970a9b26733c57a4", "lessThan": "b0cb4561fc4284d04e69c8a66c8504928ab2484e", "status": "affected", "versionType": "git"}, {"version": "dfe5080939ea4686b3414b5d970a9b26733c57a4", "lessThan": "4999fed877bb64e3e7f9ab9996de2ca983c41928", "status": "affected", "versionType": "git"}, {"version": "dfe5080939ea4686b3414b5d970a9b26733c57a4", "lessThan": "2eba3b0cc5b8de624918d21f32b5b8db59a90b39", "status": "affected", "versionType": "git"}, {"version": "dfe5080939ea4686b3414b5d970a9b26733c57a4", "lessThan": "34b2096380ba475771971a778a478661a791aa15", "status": "affected", "versionType": "git"}, {"version": "dfe5080939ea4686b3414b5d970a9b26733c57a4", "lessThan": "8b114f2cc7dd5d36729d040b68432fbd0f0a8868", "status": "affected", "versionType": "git"}, {"version": "dfe5080939ea4686b3414b5d970a9b26733c57a4", "lessThan": "d483c7cc1796bd6a80e7b3a8fd494996260f6b67", "status": "affected", "versionType": "git"}, {"version": "dfe5080939ea4686b3414b5d970a9b26733c57a4", "lessThan": "4e2524ba2ca5f54bdbb9e5153bea00421ef653f5", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/ext4/extents.c"], "versions": [{"version": "3.18", "status": "affected"}, {"version": "0", "lessThan": "3.18", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.227", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.168", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.113", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.55", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.10.14", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.11.3", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12", "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": "3.18", "versionEndExcluding": "5.10.227"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "5.15.168"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "6.1.113"}, 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"https://git.kernel.org/stable/c/8b114f2cc7dd5d36729d040b68432fbd0f0a8868"}, {"url": "https://git.kernel.org/stable/c/d483c7cc1796bd6a80e7b3a8fd494996260f6b67"}, {"url": "https://git.kernel.org/stable/c/4e2524ba2ca5f54bdbb9e5153bea00421ef653f5"}], "title": "ext4: avoid use-after-free in ext4_ext_show_leaf()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-49889", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-10-22T13:44:36.395156Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-10-22T13:48:49.316Z"}}, {"title": "CVE Program Container", "references": [{"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"}, {"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T22:22:53.988Z"}}, {"x_adpType": "supplier", "providerMetadata": {"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-10-15T00:53:41.346Z"}, "affected": [{"vendor": "Siemens", "product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem", "versions": [{"status": "affected", "version": "0", "lessThan": "V1.1.1", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "RUGGEDCOM RST2428P", "versions": [{"status": "affected", "version": "0", "lessThan": "V3.2", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family", "versions": [{"status": "affected", "version": "0", "lessThan": "V3.2", "versionType": "custom"}], "defaultStatus": "unknown"}, 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No network protocol handler is involved; ext4 is a local filesystem subsystem.\nAC:L - The attacker fully controls the trigger \u2014 creating unwritten extents with fallocate() and issuing partial writes drives ext4_split_extent() through the reallocating path deterministically, and the fallthrough to ext4_ext_show_leaf() on the successful zeroout path requires no race or memory layout the attacker cannot influence.\nPR:L - Any unprivileged local user with write access to an ext4 filesystem \u2014 /tmp, /home, or any user-writable mount \u2014 can reach ext4_ext_map_blocks() via fallocate() and write(). No capability check, no CAP_SYS_ADMIN, and no user-namespace trick is needed along the path.\nUI:N - The attacker triggers the code path entirely through their own syscalls on their own files. No victim action such as mounting a crafted filesystem or opening a supplied file is required.\nS:U - The use-after-free is confined to the kernel's own slab memory and the ext4 extent path array, with all impact contained in the kernel security authority. No VM, IOMMU, or sandbox boundary is crossed.\nC:H - The stale path array is a freed slab object the attacker can reclaim and populate via heap spraying, giving control over path[depth].p_hdr and thus an attacker-directed kernel read whose contents \u2014 extent blocks, physical block numbers, and adjacent kernel data \u2014 are emitted to the debug log.\nI:H - Per use-after-free scoring guidance, control over the contents of a reclaimed freed object combined with an attacker-supplied eh_entries count driving an unbounded extent walk is treated as exploitable for memory corruption and control-flow influence rather than a bounded read.\nA:H - Dereferencing the freed path array yields a garbage extent header whose eh_entries can walk far past any valid mapping, producing an oops or panic in the ext4 write path. Any use-after-free reliably crashes the kernel even when not fully weaponized."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "dfe5080939ea4686b3414b5d970a9b26733c57a4", "lessThan": "b0cb4561fc4284d04e69c8a66c8504928ab2484e", "versionType": "git"}, {"status": "affected", "version": "dfe5080939ea4686b3414b5d970a9b26733c57a4", "lessThan": "4999fed877bb64e3e7f9ab9996de2ca983c41928", "versionType": "git"}, {"status": "affected", "version": "dfe5080939ea4686b3414b5d970a9b26733c57a4", "lessThan": "2eba3b0cc5b8de624918d21f32b5b8db59a90b39", "versionType": "git"}, {"status": "affected", "version": "dfe5080939ea4686b3414b5d970a9b26733c57a4", "lessThan": "34b2096380ba475771971a778a478661a791aa15", "versionType": "git"}, {"status": "affected", "version": "dfe5080939ea4686b3414b5d970a9b26733c57a4", "lessThan": "8b114f2cc7dd5d36729d040b68432fbd0f0a8868", "versionType": "git"}, {"status": "affected", "version": "dfe5080939ea4686b3414b5d970a9b26733c57a4", "lessThan": "d483c7cc1796bd6a80e7b3a8fd494996260f6b67", "versionType": "git"}, {"status": "affected", "version": "dfe5080939ea4686b3414b5d970a9b26733c57a4", "lessThan": "4e2524ba2ca5f54bdbb9e5153bea00421ef653f5", "versionType": "git"}], "programFiles": ["fs/ext4/extents.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "3.18"}, {"status": "unaffected", "version": "0", "lessThan": "3.18", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.227", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.168", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.113", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.55", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.10.14", "versionType": "semver", "lessThanOrEqual": "6.10.*"}, {"status": "unaffected", "version": "6.11.3", "versionType": "semver", "lessThanOrEqual": "6.11.*"}, {"status": "unaffected", "version": "6.12", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["fs/ext4/extents.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/b0cb4561fc4284d04e69c8a66c8504928ab2484e"}, {"url": "https://git.kernel.org/stable/c/4999fed877bb64e3e7f9ab9996de2ca983c41928"}, {"url": "https://git.kernel.org/stable/c/2eba3b0cc5b8de624918d21f32b5b8db59a90b39"}, {"url": "https://git.kernel.org/stable/c/34b2096380ba475771971a778a478661a791aa15"}, {"url": "https://git.kernel.org/stable/c/8b114f2cc7dd5d36729d040b68432fbd0f0a8868"}, {"url": "https://git.kernel.org/stable/c/d483c7cc1796bd6a80e7b3a8fd494996260f6b67"}, {"url": "https://git.kernel.org/stable/c/4e2524ba2ca5f54bdbb9e5153bea00421ef653f5"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: avoid use-after-free in ext4_ext_show_leaf()\n\nIn ext4_find_extent(), path may be freed by error or be reallocated, so\nusing a previously saved *ppath may have been freed and thus may trigger\nuse-after-free, as follows:\n\next4_split_extent\n path = *ppath;\n ext4_split_extent_at(ppath)\n path = ext4_find_extent(ppath)\n ext4_split_extent_at(ppath)\n // ext4_find_extent fails to free path\n // but zeroout succeeds\n ext4_ext_show_leaf(inode, path)\n eh = path[depth].p_hdr\n // path use-after-free !!!\n\nSimilar to ext4_split_extent_at(), we use *ppath directly as an input to\next4_ext_show_leaf(). Fix a spelling error by the way.\n\nSame problem in ext4_ext_handle_unwritten_extents(). Since 'path' is only\nused in ext4_ext_show_leaf(), remove 'path' and use *ppath directly.\n\nThis issue is triggered only when EXT_DEBUG is defined and therefore does\nnot affect functionality."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.227", "versionStartIncluding": "3.18"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.168", "versionStartIncluding": "3.18"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.113", "versionStartIncluding": "3.18"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.55", "versionStartIncluding": "3.18"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.10.14", "versionStartIncluding": "3.18"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.11.3", "versionStartIncluding": "3.18"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12", "versionStartIncluding": "3.18"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:40:24.654Z"}}}, "cveMetadata": {"cveId": "CVE-2024-49889", "state": "PUBLISHED", "dateUpdated": "2026-10-15T00:53:41.346Z", "dateReserved": "2024-10-21T12:17:06.022Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-10-21T18:01:24.941Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

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GNU/Linux subsystem", "vendor": "Siemens", "versions": [{"lessThan": "V1.1.1", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unknown", "product": "RUGGEDCOM RST2428P", "vendor": "Siemens", "versions": [{"lessThan": "V3.2", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unknown", "product": "SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family", "vendor": "Siemens", "versions": [{"lessThan": "V3.2", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unknown", "product": "SCALANCE XCM-/XRM-/XCH-/XRH-300 family", "vendor": "Siemens", "versions": [{"lessThan": "V3.2", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "EB525A44-6338-4857-AD90-EA2860D1AD1F", "versionEndExcluding": "5.10.227", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "4D51C05D-455B-4D8D-89E7-A58E140B864C", "versionEndExcluding": "5.15.168", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D01BD22E-ACD1-4618-9D01-6116570BE1EE", "versionEndExcluding": "6.1.113", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E90B9576-56C4-47BC-AAB0-C5B2D438F5D0", "versionEndExcluding": "6.6.55", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "4C16BCE0-FFA0-4599-BE0A-1FD65101C021", "versionEndExcluding": "6.10.14", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "54D9C704-D679-41A7-9C40-10A6B1E7FFE9", "versionEndExcluding": "6.11.3", "versionStartIncluding": "6.11", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: avoid use-after-free in ext4_ext_show_leaf()\n\nIn ext4_find_extent(), path may be freed by error or be reallocated, so\nusing a previously saved *ppath may have been freed and thus may trigger\nuse-after-free, as follows:\n\next4_split_extent\n path = *ppath;\n ext4_split_extent_at(ppath)\n path = ext4_find_extent(ppath)\n ext4_split_extent_at(ppath)\n // ext4_find_extent fails to free path\n // but zeroout succeeds\n ext4_ext_show_leaf(inode, path)\n eh = path[depth].p_hdr\n // path use-after-free !!!\n\nSimilar to ext4_split_extent_at(), we use *ppath directly as an input to\next4_ext_show_leaf(). Fix a spelling error by the way.\n\nSame problem in ext4_ext_handle_unwritten_extents(). Since 'path' is only\nused in ext4_ext_show_leaf(), remove 'path' and use *ppath directly.\n\nThis issue is triggered only when EXT_DEBUG is defined and therefore does\nnot affect functionality."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ext4: evitar use after free en ext4_ext_show_leaf() En ext4_find_extent(), path puede liberarse por error o reasignarse, por lo que el uso de un *ppath previamente guardado puede haberse liberado y, por lo tanto, puede activar el use after free, de la siguiente manera: ext4_split_extent path = *ppath; ext4_split_extent_at(ppath) path = ext4_find_extent(ppath) ext4_split_extent_at(ppath) // ext4_find_extent no puede liberar path // pero la puesta a cero tiene \u00e9xito ext4_ext_show_leaf(inode, path) eh = path[depth].p_hdr // use after free de path !!! De manera similar a ext4_split_extent_at(), usamos *ppath directamente como entrada para ext4_ext_show_leaf(). Por cierto, corrige un error ortogr\u00e1fico. El mismo problema en ext4_ext_handle_unwritten_extents(). Dado que 'path' solo se usa en ext4_ext_show_leaf(), elimine 'path' y use *ppath directamente. Este problema se activa solo cuando se define EXT_DEBUG y, por lo tanto, no afecta la funcionalidad."}], "id": "CVE-2024-49889", "lastModified": "2026-10-15T01:18:59.523", "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"}, {"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": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-49889", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-10-22T13:44:36.395156Z", "version": "2.0.3"}}]}, "published": "2024-10-21T18:15:11.513", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2eba3b0cc5b8de624918d21f32b5b8db59a90b39"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/34b2096380ba475771971a778a478661a791aa15"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4999fed877bb64e3e7f9ab9996de2ca983c41928"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4e2524ba2ca5f54bdbb9e5153bea00421ef653f5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8b114f2cc7dd5d36729d040b68432fbd0f0a8868"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b0cb4561fc4284d04e69c8a66c8504928ab2484e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d483c7cc1796bd6a80e7b3a8fd494996260f6b67"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-355557.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2025:6966", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-570.12.1.el9_6", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-05-13T00:00:00Z"}, {"advisory": "RHSA-2025:6966", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-570.12.1.el9_6", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-05-13T00:00:00Z"}], "bugzilla": {"description": "kernel: ext4: avoid use-after-free in ext4_ext_show_leaf()", "id": "2320520", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2320520"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "status": "verified"}, "cwe": "CWE-416", "details": ["In the Linux kernel, the following vulnerability has been resolved:\next4: avoid use-after-free in ext4_ext_show_leaf()\nIn ext4_find_extent(), path may be freed by error or be reallocated, so\nusing a previously saved *ppath may have been freed and thus may trigger\nuse-after-free, as follows:\next4_split_extent\npath = *ppath;\next4_split_extent_at(ppath)\npath = ext4_find_extent(ppath)\next4_split_extent_at(ppath)\n// ext4_find_extent fails to free path\n// but zeroout succeeds\next4_ext_show_leaf(inode, path)\neh = path[depth].p_hdr\n// path use-after-free !!!\nSimilar to ext4_split_extent_at(), we use *ppath directly as an input to\next4_ext_show_leaf(). Fix a spelling error by the way.\nSame problem in ext4_ext_handle_unwritten_extents(). Since 'path' is only\nused in ext4_ext_show_leaf(), remove 'path' and use *ppath directly.\nThis issue is triggered only when EXT_DEBUG is defined and therefore does\nnot affect functionality."], "name": "CVE-2024-49889", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-10-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-49889\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-49889\nhttps://lore.kernel.org/linux-cve-announce/2024102117-CVE-2024-49889-6140@gregkh/T"], "statement": "This issue is considered to be a moderate impact flaw, as the exploitation for this will need an ADMIN (or ROOT) privilege (PR:H).", "threat_severity": "Moderate"}

{}