{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-36966", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-05-30T15:25:07.081Z", "datePublished": "2024-06-08T12:52:59.148Z", "dateUpdated": "2025-05-04T09:12:59.588Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T09:12:59.588Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: reliably distinguish block based and fscache mode\n\nWhen erofs_kill_sb() is called in block dev based mode, s_bdev may not\nhave been initialised yet, and if CONFIG_EROFS_FS_ONDEMAND is enabled,\nit will be mistaken for fscache mode, and then attempt to free an anon_dev\nthat has never been allocated, triggering the following warning:\n\n============================================\nida_free called for id=0 which is not allocated.\nWARNING: CPU: 14 PID: 926 at lib/idr.c:525 ida_free+0x134/0x140\nModules linked in:\nCPU: 14 PID: 926 Comm: mount Not tainted 6.9.0-rc3-dirty #630\nRIP: 0010:ida_free+0x134/0x140\nCall Trace:\n <TASK>\n erofs_kill_sb+0x81/0x90\n deactivate_locked_super+0x35/0x80\n get_tree_bdev+0x136/0x1e0\n vfs_get_tree+0x2c/0xf0\n do_new_mount+0x190/0x2f0\n [...]\n============================================\n\nNow when erofs_kill_sb() is called, erofs_sb_info must have been\ninitialised, so use sbi->fsid to distinguish between the two modes."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/erofs/super.c"], "versions": [{"version": "aca740cecbe57b12bd9c1fc632092af5ebacda0c", "lessThan": "f9b877a7ee312ec8ce17598a7ef85cb820d7c371", "status": "affected", "versionType": "git"}, {"version": "aca740cecbe57b12bd9c1fc632092af5ebacda0c", "lessThan": "dcdd49701e429c55b3644fd70fc58d85745f8cfe", "status": "affected", "versionType": "git"}, {"version": "aca740cecbe57b12bd9c1fc632092af5ebacda0c", "lessThan": "7af2ae1b1531feab5d38ec9c8f472dc6cceb4606", "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/erofs/super.c"], "versions": [{"version": "6.6", "status": "affected"}, {"version": "0", "lessThan": "6.6", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.32", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.8.11", "lessThanOrEqual": "6.8.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.9", "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": "6.6", "versionEndExcluding": "6.6.32"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.8.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.9"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/f9b877a7ee312ec8ce17598a7ef85cb820d7c371"}, {"url": "https://git.kernel.org/stable/c/dcdd49701e429c55b3644fd70fc58d85745f8cfe"}, {"url": "https://git.kernel.org/stable/c/7af2ae1b1531feab5d38ec9c8f472dc6cceb4606"}], "title": "erofs: reliably distinguish block based and fscache mode", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-06-12T19:01:23.136909Z", "id": "CVE-2024-36966", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-12T19:01:35.258Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T03:43:50.363Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/f9b877a7ee312ec8ce17598a7ef85cb820d7c371", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/dcdd49701e429c55b3644fd70fc58d85745f8cfe", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/7af2ae1b1531feab5d38ec9c8f472dc6cceb4606", "tags": ["x_transferred"]}]}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/f9b877a7ee312ec8ce17598a7ef85cb820d7c371", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/dcdd49701e429c55b3644fd70fc58d85745f8cfe", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/7af2ae1b1531feab5d38ec9c8f472dc6cceb4606", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T03:43:50.363Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-36966", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-06-12T19:01:23.136909Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-12T19:01:31.564Z"}}], "cna": {"title": "erofs: reliably distinguish block based and fscache mode", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "aca740cecbe5", "lessThan": "f9b877a7ee31", "versionType": "git"}, {"status": "affected", "version": "aca740cecbe5", "lessThan": "dcdd49701e42", "versionType": "git"}, {"status": "affected", "version": "aca740cecbe5", "lessThan": "7af2ae1b1531", "versionType": "git"}], "programFiles": ["fs/erofs/super.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.6"}, {"status": "unaffected", "version": "0", "lessThan": "6.6", "versionType": "semver"}, {"status": "unaffected", "version": "6.6.32", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.8.11", "versionType": "semver", "lessThanOrEqual": "6.8.*"}, {"status": "unaffected", "version": "6.9", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["fs/erofs/super.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/f9b877a7ee312ec8ce17598a7ef85cb820d7c371"}, {"url": "https://git.kernel.org/stable/c/dcdd49701e429c55b3644fd70fc58d85745f8cfe"}, {"url": "https://git.kernel.org/stable/c/7af2ae1b1531feab5d38ec9c8f472dc6cceb4606"}], "x_generator": {"engine": "bippy-9e1c9544281a"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: reliably distinguish block based and fscache mode\n\nWhen erofs_kill_sb() is called in block dev based mode, s_bdev may not\nhave been initialised yet, and if CONFIG_EROFS_FS_ONDEMAND is enabled,\nit will be mistaken for fscache mode, and then attempt to free an anon_dev\nthat has never been allocated, triggering the following warning:\n\n============================================\nida_free called for id=0 which is not allocated.\nWARNING: CPU: 14 PID: 926 at lib/idr.c:525 ida_free+0x134/0x140\nModules linked in:\nCPU: 14 PID: 926 Comm: mount Not tainted 6.9.0-rc3-dirty #630\nRIP: 0010:ida_free+0x134/0x140\nCall Trace:\n <TASK>\n erofs_kill_sb+0x81/0x90\n deactivate_locked_super+0x35/0x80\n get_tree_bdev+0x136/0x1e0\n vfs_get_tree+0x2c/0xf0\n do_new_mount+0x190/0x2f0\n [...]\n============================================\n\nNow when erofs_kill_sb() is called, erofs_sb_info must have been\ninitialised, so use sbi->fsid to distinguish between the two modes."}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-05T09:28:58.744Z"}}}, "cveMetadata": {"cveId": "CVE-2024-36966", "state": "PUBLISHED", "dateUpdated": "2024-11-05T09:28:58.744Z", "dateReserved": "2024-05-30T15:25:07.081Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-06-08T12:52:59.148Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: reliably distinguish block based and fscache mode\n\nWhen erofs_kill_sb() is called in block dev based mode, s_bdev may not\nhave been initialised yet, and if CONFIG_EROFS_FS_ONDEMAND is enabled,\nit will be mistaken for fscache mode, and then attempt to free an anon_dev\nthat has never been allocated, triggering the following warning:\n\n============================================\nida_free called for id=0 which is not allocated.\nWARNING: CPU: 14 PID: 926 at lib/idr.c:525 ida_free+0x134/0x140\nModules linked in:\nCPU: 14 PID: 926 Comm: mount Not tainted 6.9.0-rc3-dirty #630\nRIP: 0010:ida_free+0x134/0x140\nCall Trace:\n <TASK>\n erofs_kill_sb+0x81/0x90\n deactivate_locked_super+0x35/0x80\n get_tree_bdev+0x136/0x1e0\n vfs_get_tree+0x2c/0xf0\n do_new_mount+0x190/0x2f0\n [...]\n============================================\n\nNow when erofs_kill_sb() is called, erofs_sb_info must have been\ninitialised, so use sbi->fsid to distinguish between the two modes."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: erofs: distingue de manera confiable el modo basado en bloques y el modo fscache cuando se llama a erofs_kill_sb() en el modo basado en desarrollo de bloques, es posible que s_bdev a\u00fan no se haya inicializado y, si CONFIG_EROFS_FS_ONDEMAND est\u00e1 habilitado, se confundido con el modo fscache y luego intenta liberar un anon_dev que nunca ha sido asignado, lo que genera la siguiente advertencia: ============================= ================= ida_free solicit\u00f3 id=0 que no est\u00e1 asignado. ADVERTENCIA: CPU: 14 PID: 926 en lib/idr.c:525 ida_free+0x134/0x140 M\u00f3dulos vinculados en: CPU: 14 PID: 926 Comm: mount No contaminado 6.9.0-rc3-dirty #630 RIP: 0010:ida_free +0x134/0x140 Seguimiento de llamadas: erofs_kill_sb+0x81/0x90 desactivar_locked_super+0x35/0x80 get_tree_bdev+0x136/0x1e0 vfs_get_tree+0x2c/0xf0 do_new_mount+0x190/0x2f0 [...] ========== ================================== Ahora, cuando se llama a erofs_kill_sb(), erofs_sb_info debe haberse inicializado, as\u00ed que use sbi-&gt;fsid para distinguir entre los dos modos."}], "id": "CVE-2024-36966", "lastModified": "2024-11-21T09:22:55.750", "metrics": {}, "published": "2024-06-08T13:15:57.917", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7af2ae1b1531feab5d38ec9c8f472dc6cceb4606"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/dcdd49701e429c55b3644fd70fc58d85745f8cfe"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f9b877a7ee312ec8ce17598a7ef85cb820d7c371"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/7af2ae1b1531feab5d38ec9c8f472dc6cceb4606"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/dcdd49701e429c55b3644fd70fc58d85745f8cfe"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/f9b877a7ee312ec8ce17598a7ef85cb820d7c371"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: erofs: reliably distinguish block based and fscache mode", "id": "2292330", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2292330"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nerofs: reliably distinguish block based and fscache mode\nWhen erofs_kill_sb() is called in block dev based mode, s_bdev may not\nhave been initialised yet, and if CONFIG_EROFS_FS_ONDEMAND is enabled,\nit will be mistaken for fscache mode, and then attempt to free an anon_dev\nthat has never been allocated, triggering the following warning:\n============================================\nida_free called for id=0 which is not allocated.\nWARNING: CPU: 14 PID: 926 at lib/idr.c:525 ida_free+0x134/0x140\nModules linked in:\nCPU: 14 PID: 926 Comm: mount Not tainted 6.9.0-rc3-dirty #630\nRIP: 0010:ida_free+0x134/0x140\nCall Trace:\n<TASK>\nerofs_kill_sb+0x81/0x90\ndeactivate_locked_super+0x35/0x80\nget_tree_bdev+0x136/0x1e0\nvfs_get_tree+0x2c/0xf0\ndo_new_mount+0x190/0x2f0\n[...]\n============================================\nNow when erofs_kill_sb() is called, erofs_sb_info must have been\ninitialised, so use sbi->fsid to distinguish between the two modes.", "A flaw was found in the Linux kernel. A race condition can cause an attempted free on a corrupt pointer, leading to a module failure."], "name": "CVE-2024-36966", "package_state": [{"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": "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": "Under investigation", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-06-08T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-36966\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-36966\nhttps://lore.kernel.org/linux-cve-announce/2024060804-CVE-2024-36966-8bbb@gregkh/T"], "threat_severity": "Moderate"}