CVE-2024-56566

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2024-56566", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-12-27T14:03:05.996Z", "datePublished": "2024-12-27T14:23:10.178Z", "dateUpdated": "2026-10-30T12:20:19.230Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:20:19.230Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/slub: Avoid list corruption when removing a slab from the full list\n\nBoot with slub_debug=UFPZ.\n\nIf allocated object failed in alloc_consistency_checks, all objects of\nthe slab will be marked as used, and then the slab will be removed from\nthe partial list.\n\nWhen an object belonging to the slab got freed later, the remove_full()\nfunction is called. Because the slab is neither on the partial list nor\non the full list, it eventually lead to a list corruption (actually a\nlist poison being detected).\n\nSo we need to mark and isolate the slab page with metadata corruption,\ndo not put it back in circulation.\n\nBecause the debug caches avoid all the fastpaths, reusing the frozen bit\nto mark slab page with metadata corruption seems to be fine.\n\n[ 4277.385669] list_del corruption, ffffea00044b3e50->next is LIST_POISON1 (dead000000000100)\n[ 4277.387023] ------------[ cut here ]------------\n[ 4277.387880] kernel BUG at lib/list_debug.c:56!\n[ 4277.388680] invalid opcode: 0000 [#1] PREEMPT SMP PTI\n[ 4277.389562] CPU: 5 PID: 90 Comm: kworker/5:1 Kdump: loaded Tainted: G OE 6.6.1-1 #1\n[ 4277.392113] Workqueue: xfs-inodegc/vda1 xfs_inodegc_worker [xfs]\n[ 4277.393551] RIP: 0010:__list_del_entry_valid_or_report+0x7b/0xc0\n[ 4277.394518] Code: 48 91 82 e8 37 f9 9a ff 0f 0b 48 89 fe 48 c7 c7 28 49 91 82 e8 26 f9 9a ff 0f 0b 48 89 fe 48 c7 c7 58 49 91\n[ 4277.397292] RSP: 0018:ffffc90000333b38 EFLAGS: 00010082\n[ 4277.398202] RAX: 000000000000004e RBX: ffffea00044b3e50 RCX: 0000000000000000\n[ 4277.399340] RDX: 0000000000000002 RSI: ffffffff828f8715 RDI: 00000000ffffffff\n[ 4277.400545] RBP: ffffea00044b3e40 R08: 0000000000000000 R09: ffffc900003339f0\n[ 4277.401710] R10: 0000000000000003 R11: ffffffff82d44088 R12: ffff888112cf9910\n[ 4277.402887] R13: 0000000000000001 R14: 0000000000000001 R15: ffff8881000424c0\n[ 4277.404049] FS: 0000000000000000(0000) GS:ffff88842fd40000(0000) knlGS:0000000000000000\n[ 4277.405357] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 4277.406389] CR2: 00007f2ad0b24000 CR3: 0000000102a3a006 CR4: 00000000007706e0\n[ 4277.407589] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 4277.408780] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[ 4277.410000] PKRU: 55555554\n[ 4277.410645] Call Trace:\n[ 4277.411234] <TASK>\n[ 4277.411777] ? die+0x32/0x80\n[ 4277.412439] ? do_trap+0xd6/0x100\n[ 4277.413150] ? __list_del_entry_valid_or_report+0x7b/0xc0\n[ 4277.414158] ? do_error_trap+0x6a/0x90\n[ 4277.414948] ? __list_del_entry_valid_or_report+0x7b/0xc0\n[ 4277.415915] ? exc_invalid_op+0x4c/0x60\n[ 4277.416710] ? __list_del_entry_valid_or_report+0x7b/0xc0\n[ 4277.417675] ? asm_exc_invalid_op+0x16/0x20\n[ 4277.418482] ? __list_del_entry_valid_or_report+0x7b/0xc0\n[ 4277.419466] ? __list_del_entry_valid_or_report+0x7b/0xc0\n[ 4277.420410] free_to_partial_list+0x515/0x5e0\n[ 4277.421242] ? xfs_iext_remove+0x41a/0xa10 [xfs]\n[ 4277.422298] xfs_iext_remove+0x41a/0xa10 [xfs]\n[ 4277.423316] ? xfs_inodegc_worker+0xb4/0x1a0 [xfs]\n[ 4277.424383] xfs_bmap_del_extent_delay+0x4fe/0x7d0 [xfs]\n[ 4277.425490] __xfs_bunmapi+0x50d/0x840 [xfs]\n[ 4277.426445] xfs_itruncate_extents_flags+0x13a/0x490 [xfs]\n[ 4277.427553] xfs_inactive_truncate+0xa3/0x120 [xfs]\n[ 4277.428567] xfs_inactive+0x22d/0x290 [xfs]\n[ 4277.429500] xfs_inodegc_worker+0xb4/0x1a0 [xfs]\n[ 4277.430479] process_one_work+0x171/0x340\n[ 4277.431227] worker_thread+0x277/0x390\n[ 4277.431962] ? __pfx_worker_thread+0x10/0x10\n[ 4277.432752] kthread+0xf0/0x120\n[ 4277.433382] ? __pfx_kthread+0x10/0x10\n[ 4277.434134] ret_from_fork+0x2d/0x50\n[ 4277.434837] ? __pfx_kthread+0x10/0x10\n[ 4277.435566] ret_from_fork_asm+0x1b/0x30\n[ 4277.436280] </TASK>"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["mm/slab.h", "mm/slub.c"], "versions": [{"version": "643b113849d8faa68c9f01c3c9d929bfbffd50bd", "lessThan": "a81a0e7fc85125248363d5c944bef268218c9718", "status": "affected", "versionType": "git"}, {"version": "643b113849d8faa68c9f01c3c9d929bfbffd50bd", "lessThan": "33a213c04faff6c3a7fe77e947db81bc7270fe32", "status": "affected", "versionType": "git"}, {"version": "643b113849d8faa68c9f01c3c9d929bfbffd50bd", "lessThan": "943c0f601cd28c1073b92b5f944c6c6c2643e709", "status": "affected", "versionType": "git"}, {"version": "643b113849d8faa68c9f01c3c9d929bfbffd50bd", "lessThan": "dbc16915279a548a204154368da23d402c141c81", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["mm/slab.h", "mm/slub.c"], "versions": [{"version": "2.6.22", "status": "affected"}, {"version": "0", "lessThan": "2.6.22", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.191", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.64", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.4", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.13", "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": "2.6.22", "versionEndExcluding": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.22", "versionEndExcluding": "6.6.64"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.22", "versionEndExcluding": "6.12.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.22", "versionEndExcluding": "6.13"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/a81a0e7fc85125248363d5c944bef268218c9718"}, {"url": "https://git.kernel.org/stable/c/33a213c04faff6c3a7fe77e947db81bc7270fe32"}, {"url": "https://git.kernel.org/stable/c/943c0f601cd28c1073b92b5f944c6c6c2643e709"}, {"url": "https://git.kernel.org/stable/c/dbc16915279a548a204154368da23d402c141c81"}], "title": "mm/slub: Avoid list corruption when removing a slab from the full list", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["mm/slab.h", "mm/slub.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "a81a0e7fc85125248363d5c944bef268218c9718", "status": "affected", "version": "643b113849d8faa68c9f01c3c9d929bfbffd50bd", "versionType": "git"}, {"lessThan": "33a213c04faff6c3a7fe77e947db81bc7270fe32", "status": "affected", "version": "643b113849d8faa68c9f01c3c9d929bfbffd50bd", "versionType": "git"}, {"lessThan": "943c0f601cd28c1073b92b5f944c6c6c2643e709", "status": "affected", "version": "643b113849d8faa68c9f01c3c9d929bfbffd50bd", "versionType": "git"}, {"lessThan": "dbc16915279a548a204154368da23d402c141c81", "status": "affected", "version": "643b113849d8faa68c9f01c3c9d929bfbffd50bd", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["mm/slab.h", "mm/slub.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "2.6.22"}, {"lessThan": "2.6.22", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.191", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.64", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.13", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "0B0BCBBA-EC61-4D45-96E7-EAFC296EA4A7", "versionEndExcluding": "6.6.64", "versionStartIncluding": "2.6.22", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "04756810-D093-4B43-B1D9-CF5035968061", "versionEndExcluding": "6.12.4", "versionStartIncluding": "6.7", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/slub: Avoid list corruption when removing a slab from the full list\n\nBoot with slub_debug=UFPZ.\n\nIf allocated object failed in alloc_consistency_checks, all objects of\nthe slab will be marked as used, and then the slab will be removed from\nthe partial list.\n\nWhen an object belonging to the slab got freed later, the remove_full()\nfunction is called. Because the slab is neither on the partial list nor\non the full list, it eventually lead to a list corruption (actually a\nlist poison being detected).\n\nSo we need to mark and isolate the slab page with metadata corruption,\ndo not put it back in circulation.\n\nBecause the debug caches avoid all the fastpaths, reusing the frozen bit\nto mark slab page with metadata corruption seems to be fine.\n\n[ 4277.385669] list_del corruption, ffffea00044b3e50->next is LIST_POISON1 (dead000000000100)\n[ 4277.387023] ------------[ cut here ]------------\n[ 4277.387880] kernel BUG at lib/list_debug.c:56!\n[ 4277.388680] invalid opcode: 0000 [#1] PREEMPT SMP PTI\n[ 4277.389562] CPU: 5 PID: 90 Comm: kworker/5:1 Kdump: loaded Tainted: G OE 6.6.1-1 #1\n[ 4277.392113] Workqueue: xfs-inodegc/vda1 xfs_inodegc_worker [xfs]\n[ 4277.393551] RIP: 0010:__list_del_entry_valid_or_report+0x7b/0xc0\n[ 4277.394518] Code: 48 91 82 e8 37 f9 9a ff 0f 0b 48 89 fe 48 c7 c7 28 49 91 82 e8 26 f9 9a ff 0f 0b 48 89 fe 48 c7 c7 58 49 91\n[ 4277.397292] RSP: 0018:ffffc90000333b38 EFLAGS: 00010082\n[ 4277.398202] RAX: 000000000000004e RBX: ffffea00044b3e50 RCX: 0000000000000000\n[ 4277.399340] RDX: 0000000000000002 RSI: ffffffff828f8715 RDI: 00000000ffffffff\n[ 4277.400545] RBP: ffffea00044b3e40 R08: 0000000000000000 R09: ffffc900003339f0\n[ 4277.401710] R10: 0000000000000003 R11: ffffffff82d44088 R12: ffff888112cf9910\n[ 4277.402887] R13: 0000000000000001 R14: 0000000000000001 R15: ffff8881000424c0\n[ 4277.404049] FS: 0000000000000000(0000) GS:ffff88842fd40000(0000) knlGS:0000000000000000\n[ 4277.405357] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 4277.406389] CR2: 00007f2ad0b24000 CR3: 0000000102a3a006 CR4: 00000000007706e0\n[ 4277.407589] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 4277.408780] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[ 4277.410000] PKRU: 55555554\n[ 4277.410645] Call Trace:\n[ 4277.411234] <TASK>\n[ 4277.411777] ? die+0x32/0x80\n[ 4277.412439] ? do_trap+0xd6/0x100\n[ 4277.413150] ? __list_del_entry_valid_or_report+0x7b/0xc0\n[ 4277.414158] ? do_error_trap+0x6a/0x90\n[ 4277.414948] ? __list_del_entry_valid_or_report+0x7b/0xc0\n[ 4277.415915] ? exc_invalid_op+0x4c/0x60\n[ 4277.416710] ? __list_del_entry_valid_or_report+0x7b/0xc0\n[ 4277.417675] ? asm_exc_invalid_op+0x16/0x20\n[ 4277.418482] ? __list_del_entry_valid_or_report+0x7b/0xc0\n[ 4277.419466] ? __list_del_entry_valid_or_report+0x7b/0xc0\n[ 4277.420410] free_to_partial_list+0x515/0x5e0\n[ 4277.421242] ? xfs_iext_remove+0x41a/0xa10 [xfs]\n[ 4277.422298] xfs_iext_remove+0x41a/0xa10 [xfs]\n[ 4277.423316] ? xfs_inodegc_worker+0xb4/0x1a0 [xfs]\n[ 4277.424383] xfs_bmap_del_extent_delay+0x4fe/0x7d0 [xfs]\n[ 4277.425490] __xfs_bunmapi+0x50d/0x840 [xfs]\n[ 4277.426445] xfs_itruncate_extents_flags+0x13a/0x490 [xfs]\n[ 4277.427553] xfs_inactive_truncate+0xa3/0x120 [xfs]\n[ 4277.428567] xfs_inactive+0x22d/0x290 [xfs]\n[ 4277.429500] xfs_inodegc_worker+0xb4/0x1a0 [xfs]\n[ 4277.430479] process_one_work+0x171/0x340\n[ 4277.431227] worker_thread+0x277/0x390\n[ 4277.431962] ? __pfx_worker_thread+0x10/0x10\n[ 4277.432752] kthread+0xf0/0x120\n[ 4277.433382] ? __pfx_kthread+0x10/0x10\n[ 4277.434134] ret_from_fork+0x2d/0x50\n[ 4277.434837] ? __pfx_kthread+0x10/0x10\n[ 4277.435566] ret_from_fork_asm+0x1b/0x30\n[ 4277.436280] </TASK>"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mm/slub: Evitar la corrupci\u00f3n de la lista al eliminar una losa de la lista completa Arrancar con slub_debug=UFPZ. Si el objeto asignado falla en alloc_consistency_checks, todos los objetos de la losa se marcar\u00e1n como usados, y luego la losa se eliminar\u00e1 de la lista parcial. Cuando un objeto que pertenece a la losa se libera m\u00e1s tarde, se llama a la funci\u00f3n remove_full(). Debido a que la losa no est\u00e1 ni en la lista parcial ni en la lista completa, eventualmente conduce a una corrupci\u00f3n de la lista (en realidad, se detecta un veneno de lista). Por lo tanto, debemos marcar y aislar la p\u00e1gina de la losa con corrupci\u00f3n de metadatos, no volver a ponerla en circulaci\u00f3n. Debido a que los cach\u00e9s de depuraci\u00f3n evitan todas las rutas r\u00e1pidas, reutilizar el bit congelado para marcar la p\u00e1gina de la losa con corrupci\u00f3n de metadatos parece estar bien. [ 4277.385669] corrupci\u00f3n de list_del, ffffea00044b3e50-&gt;el siguiente es LIST_POISON1 (dead000000000100) [ 4277.387023] ------------[ cortar aqu\u00ed ]------------ [ 4277.387880] \u00a1ERROR del kernel en lib/list_debug.c:56! [ 4277.388680] c\u00f3digo de operaci\u00f3n no v\u00e1lido: 0000 [#1] PREEMPT SMP PTI [ 4277.389562] CPU: 5 PID: 90 Comm: kworker/5:1 Kdump: cargado Contaminado: G OE 6.6.1-1 #1 [ 4277.392113] Cola de trabajo: xfs-inodegc/vda1 xfs_inodegc_worker [xfs] [ 4277.393551] RIP: 0010:__list_del_entry_valid_or_report+0x7b/0xc0 [ 4277.394518] C\u00f3digo: 48 91 82 e8 37 f9 9a ff 0f 0b 48 89 fe 48 c7 c7 28 49 91 82 e8 26 f9 9a ff 0f 0b 48 89 fe 48 c7 c7 58 49 91 [ 4277.397292] RSP: 0018:ffffc90000333b38 EFLAGS: 00010082 [ 4277.398202] RAX: 000000000000004e RBX: ffffea00044b3e50 RCX: 0000000000000000 [ 4277.399340] RDX: 0000000000000002 RSI: ffffffff828f8715 RDI: 00000000ffffffff [ [4277.400545] RBP: ffffea00044b3e40 R08: 0000000000000000 R09: ffffc900003339f0 [4277.401710] R10: 0000000000000003 R11: ffffffff82d44088 R12: ffff888112cf9910 [4277.402887] R13: 000000000000001 R14: 0000000000000001 R15: ffff8881000424c0 [4277.404049] FS: 0000000000000000(0000) GS:ffff88842fd40000(0000) knlGS:0000000000000000 [ 4277.405357] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4277.406389] CR2: 00007f2ad0b24000 CR3: 0000000102a3a006 CR4: 00000000007706e0 [ 4277.407589] DR0: 0000000000000000 DR1: 00000000000000000 DR2: 0000000000000000 [ 4277.408780] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 4277.410000] PKRU: 55555554 [ 4277.410645] Seguimiento de llamadas: [ 4277.411234] [ 4277.411777] ? die+0x32/0x80 [ 4277.412439] ? do_trap+0xd6/0x100 [ 4277.413150] ? __list_del_entry_valid_or_report+0x7b/0xc0 [ 4277.414158] ? hacer_trampa_error+0x6a/0x90 [ 4277.414948] ? __list_del_entry_valid_or_report+0x7b/0xc0 [ 4277.415915] ? exc_op_inv\u00e1lida+0x4c/0x60 [ 4277.416710] ? __list_del_entry_valid_or_report+0x7b/0xc0 [ 4277.417675] ? asm_exc_op_inv\u00e1lida+0x16/0x20 [ 4277.418482] ? xfs_iext_remove+0x41a/0xa10 [xfs] [ 4277.422298] xfs_iext_remove+0x41a/0xa10 [xfs] [ 4277.423316] ? xfs_inodegc_worker+0xb4/0x1a0 [xfs] [ 4277.424383] xfs_bmap_del_extent_delay+0x4fe/0x7d0 [xfs] [ 4277.425490] __xfs_bunmapi+0x50d/0x840 [xfs] [ 4277.426445] xfs_itruncate_extents_flags+0x13a/0x490 [xfs] [ 4277.427553] xfs_inactive_truncate+0xa3/0x120 [xfs] [ 4277.428567] xfs_inactive+0x22d/0x290 [xfs] [ __pfx_kthread+0x10/0x10 [4277.434134] ret_from_fork+0x2d/0x50 [4277.434837] ? __pfx_kthread+0x10/0x10 [ 4277.435566] ret_de_la_bifurcaci\u00f3n_asm+0x1b/0x30 [ 4277.436280] "}], "id": "CVE-2024-56566", "lastModified": "2026-10-30T13:17:46.840", "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": "2024-12-27T15:15:15.517", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/33a213c04faff6c3a7fe77e947db81bc7270fe32"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/943c0f601cd28c1073b92b5f944c6c6c2643e709"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a81a0e7fc85125248363d5c944bef268218c9718"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/dbc16915279a548a204154368da23d402c141c81"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-401"}], "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: mm/slub: Avoid list corruption when removing a slab from the full list", "id": "2334463", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2334463"}, "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": "verified"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmm/slub: Avoid list corruption when removing a slab from the full list\nBoot with slub_debug=UFPZ.\nIf allocated object failed in alloc_consistency_checks, all objects of\nthe slab will be marked as used, and then the slab will be removed from\nthe partial list.\nWhen an object belonging to the slab got freed later, the remove_full()\nfunction is called. Because the slab is neither on the partial list nor\non the full list, it eventually lead to a list corruption (actually a\nlist poison being detected).\nSo we need to mark and isolate the slab page with metadata corruption,\ndo not put it back in circulation.\nBecause the debug caches avoid all the fastpaths, reusing the frozen bit\nto mark slab page with metadata corruption seems to be fine.\n[ 4277.385669] list_del corruption, ffffea00044b3e50->next is LIST_POISON1 (dead000000000100)\n[ 4277.387023] ------------[ cut here ]------------\n[ 4277.387880] kernel BUG at lib/list_debug.c:56!\n[ 4277.388680] invalid opcode: 0000 [#1] PREEMPT SMP PTI\n[ 4277.389562] CPU: 5 PID: 90 Comm: kworker/5:1 Kdump: loaded Tainted: G OE 6.6.1-1 #1\n[ 4277.392113] Workqueue: xfs-inodegc/vda1 xfs_inodegc_worker [xfs]\n[ 4277.393551] RIP: 0010:__list_del_entry_valid_or_report+0x7b/0xc0\n[ 4277.394518] Code: 48 91 82 e8 37 f9 9a ff 0f 0b 48 89 fe 48 c7 c7 28 49 91 82 e8 26 f9 9a ff 0f 0b 48 89 fe 48 c7 c7 58 49 91\n[ 4277.397292] RSP: 0018:ffffc90000333b38 EFLAGS: 00010082\n[ 4277.398202] RAX: 000000000000004e RBX: ffffea00044b3e50 RCX: 0000000000000000\n[ 4277.399340] RDX: 0000000000000002 RSI: ffffffff828f8715 RDI: 00000000ffffffff\n[ 4277.400545] RBP: ffffea00044b3e40 R08: 0000000000000000 R09: ffffc900003339f0\n[ 4277.401710] R10: 0000000000000003 R11: ffffffff82d44088 R12: ffff888112cf9910\n[ 4277.402887] R13: 0000000000000001 R14: 0000000000000001 R15: ffff8881000424c0\n[ 4277.404049] FS: 0000000000000000(0000) GS:ffff88842fd40000(0000) knlGS:0000000000000000\n[ 4277.405357] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 4277.406389] CR2: 00007f2ad0b24000 CR3: 0000000102a3a006 CR4: 00000000007706e0\n[ 4277.407589] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 4277.408780] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[ 4277.410000] PKRU: 55555554\n[ 4277.410645] Call Trace:\n[ 4277.411234] <TASK>\n[ 4277.411777] ? die+0x32/0x80\n[ 4277.412439] ? do_trap+0xd6/0x100\n[ 4277.413150] ? __list_del_entry_valid_or_report+0x7b/0xc0\n[ 4277.414158] ? do_error_trap+0x6a/0x90\n[ 4277.414948] ? __list_del_entry_valid_or_report+0x7b/0xc0\n[ 4277.415915] ? exc_invalid_op+0x4c/0x60\n[ 4277.416710] ? __list_del_entry_valid_or_report+0x7b/0xc0\n[ 4277.417675] ? asm_exc_invalid_op+0x16/0x20\n[ 4277.418482] ? __list_del_entry_valid_or_report+0x7b/0xc0\n[ 4277.419466] ? __list_del_entry_valid_or_report+0x7b/0xc0\n[ 4277.420410] free_to_partial_list+0x515/0x5e0\n[ 4277.421242] ? xfs_iext_remove+0x41a/0xa10 [xfs]\n[ 4277.422298] xfs_iext_remove+0x41a/0xa10 [xfs]\n[ 4277.423316] ? xfs_inodegc_worker+0xb4/0x1a0 [xfs]\n[ 4277.424383] xfs_bmap_del_extent_delay+0x4fe/0x7d0 [xfs]\n[ 4277.425490] __xfs_bunmapi+0x50d/0x840 [xfs]\n[ 4277.426445] xfs_itruncate_extents_flags+0x13a/0x490 [xfs]\n[ 4277.427553] xfs_inactive_truncate+0xa3/0x120 [xfs]\n[ 4277.428567] xfs_inactive+0x22d/0x290 [xfs]\n[ 4277.429500] xfs_inodegc_worker+0xb4/0x1a0 [xfs]\n[ 4277.430479] process_one_work+0x171/0x340\n[ 4277.431227] worker_thread+0x277/0x390\n[ 4277.431962] ? __pfx_worker_thread+0x10/0x10\n[ 4277.432752] kthread+0xf0/0x120\n[ 4277.433382] ? __pfx_kthread+0x10/0x10\n[ 4277.434134] ret_from_fork+0x2d/0x50\n[ 4277.434837] ? __pfx_kthread+0x10/0x10\n[ 4277.435566] ret_from_fork_asm+0x1b/0x30\n[ 4277.436280] </TASK>", "A use-after-free list corruption vulnerability was found in the Linux kernel. If an allocated object fails in alloc_consistency_checks, all objects of the slab will be marked as used and the slab will be removed from the partial list. When an object belonging to the slab gets freed later, the remove_full() function is called. Since the slab is neither on the partial list nor on the full list, it eventually leads to a list corruption."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2024-56566", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-12-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-56566\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-56566\nhttps://lore.kernel.org/linux-cve-announce/2024122715-CVE-2024-56566-0a7e@gregkh/T"], "threat_severity": "Moderate"}

{}