CVE-2025-38194

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-38194", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T04:51:23.993Z", "datePublished": "2025-07-04T13:37:17.922Z", "dateUpdated": "2026-05-11T21:23:04.119Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T21:23:04.119Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\njffs2: check that raw node were preallocated before writing summary\n\nSyzkaller detected a kernel bug in jffs2_link_node_ref, caused by fault\ninjection in jffs2_prealloc_raw_node_refs. jffs2_sum_write_sumnode doesn't\ncheck return value of jffs2_prealloc_raw_node_refs and simply lets any\nerror propagate into jffs2_sum_write_data, which eventually calls\njffs2_link_node_ref in order to link the summary to an expectedly allocated\nnode.\n\nkernel BUG at fs/jffs2/nodelist.c:592!\ninvalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI\nCPU: 1 PID: 31277 Comm: syz-executor.7 Not tainted 6.1.128-syzkaller-00139-ge10f83ca10a1 #0\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014\nRIP: 0010:jffs2_link_node_ref+0x570/0x690 fs/jffs2/nodelist.c:592\nCall Trace:\n <TASK>\n jffs2_sum_write_data fs/jffs2/summary.c:841 [inline]\n jffs2_sum_write_sumnode+0xd1a/0x1da0 fs/jffs2/summary.c:874\n jffs2_do_reserve_space+0xa18/0xd60 fs/jffs2/nodemgmt.c:388\n jffs2_reserve_space+0x55f/0xaa0 fs/jffs2/nodemgmt.c:197\n jffs2_write_inode_range+0x246/0xb50 fs/jffs2/write.c:362\n jffs2_write_end+0x726/0x15d0 fs/jffs2/file.c:301\n generic_perform_write+0x314/0x5d0 mm/filemap.c:3856\n __generic_file_write_iter+0x2ae/0x4d0 mm/filemap.c:3973\n generic_file_write_iter+0xe3/0x350 mm/filemap.c:4005\n call_write_iter include/linux/fs.h:2265 [inline]\n do_iter_readv_writev+0x20f/0x3c0 fs/read_write.c:735\n do_iter_write+0x186/0x710 fs/read_write.c:861\n vfs_iter_write+0x70/0xa0 fs/read_write.c:902\n iter_file_splice_write+0x73b/0xc90 fs/splice.c:685\n do_splice_from fs/splice.c:763 [inline]\n direct_splice_actor+0x10c/0x170 fs/splice.c:950\n splice_direct_to_actor+0x337/0xa10 fs/splice.c:896\n do_splice_direct+0x1a9/0x280 fs/splice.c:1002\n do_sendfile+0xb13/0x12c0 fs/read_write.c:1255\n __do_sys_sendfile64 fs/read_write.c:1323 [inline]\n __se_sys_sendfile64 fs/read_write.c:1309 [inline]\n __x64_sys_sendfile64+0x1cf/0x210 fs/read_write.c:1309\n do_syscall_x64 arch/x86/entry/common.c:51 [inline]\n do_syscall_64+0x35/0x80 arch/x86/entry/common.c:81\n entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n\nFix this issue by checking return value of jffs2_prealloc_raw_node_refs\nbefore calling jffs2_sum_write_data.\n\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/jffs2/summary.c"], "versions": [{"version": "2f785402f39b96a077b6e62bf26164bfb8e0c980", "lessThan": "337f80f3d546e131c7aa90b61d8cde051ae858c7", "status": "affected", "versionType": "git"}, {"version": "2f785402f39b96a077b6e62bf26164bfb8e0c980", "lessThan": "8ce46dc5b10b0b6f67663202a4921b0e11ad7367", "status": "affected", "versionType": "git"}, {"version": "2f785402f39b96a077b6e62bf26164bfb8e0c980", "lessThan": "4adee34098a6ee86a54bf3ec885eab620c126a6b", "status": "affected", "versionType": "git"}, {"version": "2f785402f39b96a077b6e62bf26164bfb8e0c980", "lessThan": "c0edcdb4fc106d69a2d1a0ce4868193511c389f3", "status": "affected", "versionType": "git"}, {"version": "2f785402f39b96a077b6e62bf26164bfb8e0c980", "lessThan": "3f46644a5131a4793fc95c32a7d0a769745b06e7", "status": "affected", "versionType": "git"}, {"version": "2f785402f39b96a077b6e62bf26164bfb8e0c980", "lessThan": "da12ef7e19048dc5714032c2db587a215852b200", "status": "affected", "versionType": "git"}, {"version": "2f785402f39b96a077b6e62bf26164bfb8e0c980", "lessThan": "346cfb9d19ea7feb6fb57917b21c4797fb444dab", "status": "affected", "versionType": "git"}, {"version": "2f785402f39b96a077b6e62bf26164bfb8e0c980", "lessThan": "ec9e6f22bce433b260ea226de127ec68042849b0", "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/jffs2/summary.c"], "versions": [{"version": "2.6.18", "status": "affected"}, {"version": "0", "lessThan": "2.6.18", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.295", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.239", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.186", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.142", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.95", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.35", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.15.4", "lessThanOrEqual": "6.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.16", "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": "2.6.18", "versionEndExcluding": "5.4.295"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.18", "versionEndExcluding": "5.10.239"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.18", "versionEndExcluding": "5.15.186"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.18", "versionEndExcluding": "6.1.142"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.18", "versionEndExcluding": "6.6.95"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.18", "versionEndExcluding": "6.12.35"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.18", "versionEndExcluding": "6.15.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.18", "versionEndExcluding": "6.16"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/337f80f3d546e131c7aa90b61d8cde051ae858c7"}, {"url": "https://git.kernel.org/stable/c/8ce46dc5b10b0b6f67663202a4921b0e11ad7367"}, {"url": "https://git.kernel.org/stable/c/4adee34098a6ee86a54bf3ec885eab620c126a6b"}, {"url": "https://git.kernel.org/stable/c/c0edcdb4fc106d69a2d1a0ce4868193511c389f3"}, {"url": "https://git.kernel.org/stable/c/3f46644a5131a4793fc95c32a7d0a769745b06e7"}, {"url": "https://git.kernel.org/stable/c/da12ef7e19048dc5714032c2db587a215852b200"}, {"url": "https://git.kernel.org/stable/c/346cfb9d19ea7feb6fb57917b21c4797fb444dab"}, {"url": "https://git.kernel.org/stable/c/ec9e6f22bce433b260ea226de127ec68042849b0"}], "title": "jffs2: check that raw node were preallocated before writing summary", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"}, {"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T17:35:19.096Z"}}]}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/jffs2/summary.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "337f80f3d546e131c7aa90b61d8cde051ae858c7", "status": "affected", "version": "2f785402f39b96a077b6e62bf26164bfb8e0c980", "versionType": "git"}, {"lessThan": "8ce46dc5b10b0b6f67663202a4921b0e11ad7367", "status": "affected", "version": "2f785402f39b96a077b6e62bf26164bfb8e0c980", "versionType": "git"}, {"lessThan": "4adee34098a6ee86a54bf3ec885eab620c126a6b", "status": "affected", "version": "2f785402f39b96a077b6e62bf26164bfb8e0c980", "versionType": "git"}, {"lessThan": "c0edcdb4fc106d69a2d1a0ce4868193511c389f3", "status": "affected", "version": "2f785402f39b96a077b6e62bf26164bfb8e0c980", "versionType": "git"}, {"lessThan": "3f46644a5131a4793fc95c32a7d0a769745b06e7", "status": "affected", "version": "2f785402f39b96a077b6e62bf26164bfb8e0c980", "versionType": "git"}, {"lessThan": "da12ef7e19048dc5714032c2db587a215852b200", "status": "affected", "version": "2f785402f39b96a077b6e62bf26164bfb8e0c980", "versionType": "git"}, {"lessThan": "346cfb9d19ea7feb6fb57917b21c4797fb444dab", "status": "affected", "version": "2f785402f39b96a077b6e62bf26164bfb8e0c980", "versionType": "git"}, {"lessThan": "ec9e6f22bce433b260ea226de127ec68042849b0", "status": "affected", "version": "2f785402f39b96a077b6e62bf26164bfb8e0c980", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/jffs2/summary.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "2.6.18"}, {"lessThan": "2.6.18", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.4.*", "status": "unaffected", "version": "5.4.295", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.239", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.186", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.142", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.95", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.35", "versionType": "semver"}, {"lessThanOrEqual": "6.15.*", "status": "unaffected", "version": "6.15.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.16", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E4F3F2CC-D721-44D2-AE4D-FCC75A4A97FE", "versionEndExcluding": "5.4.295", "versionStartIncluding": "2.6.18", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "C3D14F4C-A21E-465D-A928-5CCE684E2B98", "versionEndExcluding": "5.10.239", "versionStartIncluding": "5.5", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D96F2C0D-0D4A-4658-AD34-D8A626EA422D", "versionEndExcluding": "5.15.186", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "459B4E94-FE0E-434D-B782-95E3A5FFC6B1", "versionEndExcluding": "6.1.142", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "C5E01853-7048-4D78-9479-9AEE41AC8456", "versionEndExcluding": "6.6.95", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E569FD34-0076-4428-BE17-EECCF867611C", "versionEndExcluding": "6.12.35", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "DFD174C5-1AA2-4671-BDDC-1A9FCC753655", "versionEndExcluding": "6.15.4", "versionStartIncluding": "6.13", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*", "matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\njffs2: check that raw node were preallocated before writing summary\n\nSyzkaller detected a kernel bug in jffs2_link_node_ref, caused by fault\ninjection in jffs2_prealloc_raw_node_refs. jffs2_sum_write_sumnode doesn't\ncheck return value of jffs2_prealloc_raw_node_refs and simply lets any\nerror propagate into jffs2_sum_write_data, which eventually calls\njffs2_link_node_ref in order to link the summary to an expectedly allocated\nnode.\n\nkernel BUG at fs/jffs2/nodelist.c:592!\ninvalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI\nCPU: 1 PID: 31277 Comm: syz-executor.7 Not tainted 6.1.128-syzkaller-00139-ge10f83ca10a1 #0\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014\nRIP: 0010:jffs2_link_node_ref+0x570/0x690 fs/jffs2/nodelist.c:592\nCall Trace:\n <TASK>\n jffs2_sum_write_data fs/jffs2/summary.c:841 [inline]\n jffs2_sum_write_sumnode+0xd1a/0x1da0 fs/jffs2/summary.c:874\n jffs2_do_reserve_space+0xa18/0xd60 fs/jffs2/nodemgmt.c:388\n jffs2_reserve_space+0x55f/0xaa0 fs/jffs2/nodemgmt.c:197\n jffs2_write_inode_range+0x246/0xb50 fs/jffs2/write.c:362\n jffs2_write_end+0x726/0x15d0 fs/jffs2/file.c:301\n generic_perform_write+0x314/0x5d0 mm/filemap.c:3856\n __generic_file_write_iter+0x2ae/0x4d0 mm/filemap.c:3973\n generic_file_write_iter+0xe3/0x350 mm/filemap.c:4005\n call_write_iter include/linux/fs.h:2265 [inline]\n do_iter_readv_writev+0x20f/0x3c0 fs/read_write.c:735\n do_iter_write+0x186/0x710 fs/read_write.c:861\n vfs_iter_write+0x70/0xa0 fs/read_write.c:902\n iter_file_splice_write+0x73b/0xc90 fs/splice.c:685\n do_splice_from fs/splice.c:763 [inline]\n direct_splice_actor+0x10c/0x170 fs/splice.c:950\n splice_direct_to_actor+0x337/0xa10 fs/splice.c:896\n do_splice_direct+0x1a9/0x280 fs/splice.c:1002\n do_sendfile+0xb13/0x12c0 fs/read_write.c:1255\n __do_sys_sendfile64 fs/read_write.c:1323 [inline]\n __se_sys_sendfile64 fs/read_write.c:1309 [inline]\n __x64_sys_sendfile64+0x1cf/0x210 fs/read_write.c:1309\n do_syscall_x64 arch/x86/entry/common.c:51 [inline]\n do_syscall_64+0x35/0x80 arch/x86/entry/common.c:81\n entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n\nFix this issue by checking return value of jffs2_prealloc_raw_node_refs\nbefore calling jffs2_sum_write_data.\n\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: jffs2: comprobar que los nodos sin procesar se hayan preasignado antes de escribir el resumen Syzkaller detect\u00f3 un error del kernel en jffs2_link_node_ref, causado por la inyecci\u00f3n de un fallo en jffs2_prealloc_raw_node_refs. jffs2_sum_write_sumnode no comprueba el valor de retorno de jffs2_prealloc_raw_node_refs y simplemente permite que cualquier error se propague a jffs2_sum_write_data, que eventualmente llama a jffs2_link_node_ref para vincular el resumen a un nodo asignado como se esperaba. ERROR de fs/jffs2/nodelist.c:592! invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 1 PID: 31277 Comm: syz-executor.7 Not tainted 6.1.128-syzkaller-00139-ge10f83ca10a1 #0 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:jffs2_link_node_ref+0x570/0x690 fs/jffs2/nodelist.c:592 Call Trace: jffs2_sum_write_data fs/jffs2/summary.c:841 [inline] jffs2_sum_write_sumnode+0xd1a/0x1da0 fs/jffs2/summary.c:874 jffs2_do_reserve_space+0xa18/0xd60 fs/jffs2/nodemgmt.c:388 jffs2_reserve_space+0x55f/0xaa0 fs/jffs2/nodemgmt.c:197 jffs2_write_inode_range+0x246/0xb50 fs/jffs2/write.c:362 jffs2_write_end+0x726/0x15d0 fs/jffs2/file.c:301 generic_perform_write+0x314/0x5d0 mm/filemap.c:3856 __generic_file_write_iter+0x2ae/0x4d0 mm/filemap.c:3973 generic_file_write_iter+0xe3/0x350 mm/filemap.c:4005 call_write_iter include/linux/fs.h:2265 [inline] do_iter_readv_writev+0x20f/0x3c0 fs/read_write.c:735 do_iter_write+0x186/0x710 fs/read_write.c:861 vfs_iter_write+0x70/0xa0 fs/read_write.c:902 iter_file_splice_write+0x73b/0xc90 fs/splice.c:685 do_splice_from fs/splice.c:763 [inline] direct_splice_actor+0x10c/0x170 fs/splice.c:950 splice_direct_to_actor+0x337/0xa10 fs/splice.c:896 do_splice_direct+0x1a9/0x280 fs/splice.c:1002 do_sendfile+0xb13/0x12c0 fs/read_write.c:1255 __do_sys_sendfile64 fs/read_write.c:1323 [inline] __se_sys_sendfile64 fs/read_write.c:1309 [inline] __x64_sys_sendfile64+0x1cf/0x210 fs/read_write.c:1309 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x35/0x80 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 Fix this issue by checking return value of jffs2_prealloc_raw_node_refs before calling jffs2_sum_write_data. Solucione este problema comprobando el valor de retorno de jffs2_prealloc_raw_node_refs antes de llamar a jffs2_sum_write_data. Encontrado por el Centro de Verificaci\u00f3n de Linux (linuxtesting.org) con Syzkaller."}], "id": "CVE-2025-38194", "lastModified": "2026-06-17T09:16:21.800", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-07-04T14:15:26.530", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/337f80f3d546e131c7aa90b61d8cde051ae858c7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/346cfb9d19ea7feb6fb57917b21c4797fb444dab"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3f46644a5131a4793fc95c32a7d0a769745b06e7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4adee34098a6ee86a54bf3ec885eab620c126a6b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8ce46dc5b10b0b6f67663202a4921b0e11ad7367"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c0edcdb4fc106d69a2d1a0ce4868193511c389f3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/da12ef7e19048dc5714032c2db587a215852b200"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ec9e6f22bce433b260ea226de127ec68042849b0"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: jffs2: check that raw node were preallocated before writing summary", "id": "2376388", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2376388"}, "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": ["In the Linux kernel, the following vulnerability has been resolved:\njffs2: check that raw node were preallocated before writing summary\nSyzkaller detected a kernel bug in jffs2_link_node_ref, caused by fault\ninjection in jffs2_prealloc_raw_node_refs. jffs2_sum_write_sumnode doesn't\ncheck return value of jffs2_prealloc_raw_node_refs and simply lets any\nerror propagate into jffs2_sum_write_data, which eventually calls\njffs2_link_node_ref in order to link the summary to an expectedly allocated\nnode.\nkernel BUG at fs/jffs2/nodelist.c:592!\ninvalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI\nCPU: 1 PID: 31277 Comm: syz-executor.7 Not tainted 6.1.128-syzkaller-00139-ge10f83ca10a1 #0\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014\nRIP: 0010:jffs2_link_node_ref+0x570/0x690 fs/jffs2/nodelist.c:592\nCall Trace:\n<TASK>\njffs2_sum_write_data fs/jffs2/summary.c:841 [inline]\njffs2_sum_write_sumnode+0xd1a/0x1da0 fs/jffs2/summary.c:874\njffs2_do_reserve_space+0xa18/0xd60 fs/jffs2/nodemgmt.c:388\njffs2_reserve_space+0x55f/0xaa0 fs/jffs2/nodemgmt.c:197\njffs2_write_inode_range+0x246/0xb50 fs/jffs2/write.c:362\njffs2_write_end+0x726/0x15d0 fs/jffs2/file.c:301\ngeneric_perform_write+0x314/0x5d0 mm/filemap.c:3856\n__generic_file_write_iter+0x2ae/0x4d0 mm/filemap.c:3973\ngeneric_file_write_iter+0xe3/0x350 mm/filemap.c:4005\ncall_write_iter include/linux/fs.h:2265 [inline]\ndo_iter_readv_writev+0x20f/0x3c0 fs/read_write.c:735\ndo_iter_write+0x186/0x710 fs/read_write.c:861\nvfs_iter_write+0x70/0xa0 fs/read_write.c:902\niter_file_splice_write+0x73b/0xc90 fs/splice.c:685\ndo_splice_from fs/splice.c:763 [inline]\ndirect_splice_actor+0x10c/0x170 fs/splice.c:950\nsplice_direct_to_actor+0x337/0xa10 fs/splice.c:896\ndo_splice_direct+0x1a9/0x280 fs/splice.c:1002\ndo_sendfile+0xb13/0x12c0 fs/read_write.c:1255\n__do_sys_sendfile64 fs/read_write.c:1323 [inline]\n__se_sys_sendfile64 fs/read_write.c:1309 [inline]\n__x64_sys_sendfile64+0x1cf/0x210 fs/read_write.c:1309\ndo_syscall_x64 arch/x86/entry/common.c:51 [inline]\ndo_syscall_64+0x35/0x80 arch/x86/entry/common.c:81\nentry_SYSCALL_64_after_hwframe+0x6e/0xd8\nFix this issue by checking return value of jffs2_prealloc_raw_node_refs\nbefore calling jffs2_sum_write_data.\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller."], "name": "CVE-2025-38194", "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": "Out of support scope", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-07-04T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-38194\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-38194\nhttps://lore.kernel.org/linux-cve-announce/2025070415-CVE-2025-38194-1c50@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-07-13T21:47:53.363247+00:00", "updated": "2025-07-13T21:47:53.363301+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}