CVE-2024-46796

{"id": "CVE-2024-46796", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "published": "2024-09-18T08:15:06.340", "references": [{"url": "https://git.kernel.org/stable/c/5a72d1edb0843e4c927a4096f81e631031c25c28", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/762099898309218b4a7954f3d49e985dc4dfd638", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f9c169b51b6ce20394594ef674d6b10efba31220", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-416"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix double put of @cfile in smb2_set_path_size()\n\nIf smb2_compound_op() is called with a valid @cfile and returned\n-EINVAL, we need to call cifs_get_writable_path() before retrying it\nas the reference of @cfile was already dropped by previous call.\n\nThis fixes the following KASAN splat when running fstests generic/013\nagainst Windows Server 2022:\n\n CIFS: Attempting to mount //w22-fs0/scratch\n run fstests generic/013 at 2024-09-02 19:48:59\n ==================================================================\n BUG: KASAN: slab-use-after-free in detach_if_pending+0xab/0x200\n Write of size 8 at addr ffff88811f1a3730 by task kworker/3:2/176\n\n CPU: 3 UID: 0 PID: 176 Comm: kworker/3:2 Not tainted 6.11.0-rc6 #2\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-2.fc40\n 04/01/2014\n Workqueue: cifsoplockd cifs_oplock_break [cifs]\n Call Trace:\n <TASK>\n dump_stack_lvl+0x5d/0x80\n ? detach_if_pending+0xab/0x200\n print_report+0x156/0x4d9\n ? detach_if_pending+0xab/0x200\n ? __virt_addr_valid+0x145/0x300\n ? __phys_addr+0x46/0x90\n ? detach_if_pending+0xab/0x200\n kasan_report+0xda/0x110\n ? detach_if_pending+0xab/0x200\n detach_if_pending+0xab/0x200\n timer_delete+0x96/0xe0\n ? __pfx_timer_delete+0x10/0x10\n ? rcu_is_watching+0x20/0x50\n try_to_grab_pending+0x46/0x3b0\n __cancel_work+0x89/0x1b0\n ? __pfx___cancel_work+0x10/0x10\n ? kasan_save_track+0x14/0x30\n cifs_close_deferred_file+0x110/0x2c0 [cifs]\n ? __pfx_cifs_close_deferred_file+0x10/0x10 [cifs]\n ? __pfx_down_read+0x10/0x10\n cifs_oplock_break+0x4c1/0xa50 [cifs]\n ? __pfx_cifs_oplock_break+0x10/0x10 [cifs]\n ? lock_is_held_type+0x85/0xf0\n ? mark_held_locks+0x1a/0x90\n process_one_work+0x4c6/0x9f0\n ? find_held_lock+0x8a/0xa0\n ? __pfx_process_one_work+0x10/0x10\n ? lock_acquired+0x220/0x550\n ? __list_add_valid_or_report+0x37/0x100\n worker_thread+0x2e4/0x570\n ? __kthread_parkme+0xd1/0xf0\n ? __pfx_worker_thread+0x10/0x10\n kthread+0x17f/0x1c0\n ? kthread+0xda/0x1c0\n ? __pfx_kthread+0x10/0x10\n ret_from_fork+0x31/0x60\n ? __pfx_kthread+0x10/0x10\n ret_from_fork_asm+0x1a/0x30\n </TASK>\n\n Allocated by task 1118:\n kasan_save_stack+0x30/0x50\n kasan_save_track+0x14/0x30\n __kasan_kmalloc+0xaa/0xb0\n cifs_new_fileinfo+0xc8/0x9d0 [cifs]\n cifs_atomic_open+0x467/0x770 [cifs]\n lookup_open.isra.0+0x665/0x8b0\n path_openat+0x4c3/0x1380\n do_filp_open+0x167/0x270\n do_sys_openat2+0x129/0x160\n __x64_sys_creat+0xad/0xe0\n do_syscall_64+0xbb/0x1d0\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\n Freed by task 83:\n kasan_save_stack+0x30/0x50\n kasan_save_track+0x14/0x30\n kasan_save_free_info+0x3b/0x70\n poison_slab_object+0xe9/0x160\n __kasan_slab_free+0x32/0x50\n kfree+0xf2/0x300\n process_one_work+0x4c6/0x9f0\n worker_thread+0x2e4/0x570\n kthread+0x17f/0x1c0\n ret_from_fork+0x31/0x60\n ret_from_fork_asm+0x1a/0x30\n\n Last potentially related work creation:\n kasan_save_stack+0x30/0x50\n __kasan_record_aux_stack+0xad/0xc0\n insert_work+0x29/0xe0\n __queue_work+0x5ea/0x760\n queue_work_on+0x6d/0x90\n _cifsFileInfo_put+0x3f6/0x770 [cifs]\n smb2_compound_op+0x911/0x3940 [cifs]\n smb2_set_path_size+0x228/0x270 [cifs]\n cifs_set_file_size+0x197/0x460 [cifs]\n cifs_setattr+0xd9c/0x14b0 [cifs]\n notify_change+0x4e3/0x740\n do_truncate+0xfa/0x180\n vfs_truncate+0x195/0x200\n __x64_sys_truncate+0x109/0x150\n do_syscall_64+0xbb/0x1d0\n entry_SYSCALL_64_after_hwframe+0x77/0x7f"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: smb: cliente: se corrige la doble colocaci\u00f3n de @cfile en smb2_set_path_size() Si se llama a smb2_compound_op() con un @cfile v\u00e1lido y se devuelve -EINVAL, debemos llamar a cifs_get_writable_path() antes de volver a intentarlo ya que la referencia de @cfile ya fue descartada por la llamada anterior. Esto corrige el siguiente error de KASAN al ejecutar fstests generic/013 contra Windows Server 2022: CIFS: Intentando montar //w22-fs0/scratch ejecutar fstests generic/013 a las 2024-09-02 19:48:59 ====================================================================== ERROR: KASAN: slab-use-after-free en detach_if_pending+0xab/0x200 Escritura de tama\u00f1o 8 en la direcci\u00f3n ffff88811f1a3730 por la tarea kworker/3:2/176 CPU: 3 UID: 0 PID: 176 Comm: kworker/3:2 No contaminado 6.11.0-rc6 #2 Nombre del hardware: PC est\u00e1ndar QEMU (Q35 + ICH9, 2009), BIOS 1.16.3-2.fc40 01/04/2014 Cola de trabajo: cifsoplockd cifs_oplock_break [cifs] Seguimiento de llamadas: dump_stack_lvl+0x5d/0x80 ? detach_if_pending+0xab/0x200 print_report+0x156/0x4d9 ? detach_if_pending+0xab/0x200 ? __virt_addr_valid+0x145/0x300 ? __phys_addr+0x46/0x90 ? detach_if_pending+0xab/0x200 kasan_report+0xda/0x110 ? detach_if_pending+0xab/0x200 detach_if_pending+0xab/0x200 timer_delete+0x96/0xe0 ? __pfx_timer_delete+0x10/0x10 ? rcu_is_watching+0x20/0x50 try_to_grab_pending+0x46/0x3b0 __cancel_work+0x89/0x1b0 ? __pfx___cancel_work+0x10/0x10 ? kasan_save_track+0x14/0x30 cifs_close_deferred_file+0x110/0x2c0 [cifs] ? __pfx_cifs_close_deferred_file+0x10/0x10 [cifs] ? __pfx_down_read+0x10/0x10 cifs_oplock_break+0x4c1/0xa50 [cifs] ? __pfx_cifs_oplock_break+0x10/0x10 [cifs] ? tipo_bloqueo_retenido+0x85/0xf0 ? marcar_bloqueos_retenidos+0x1a/0x90 proceso_una_obra+0x4c6/0x9f0 ? encontrar_bloqueo_retenido+0x8a/0xa0 ? __pfx_proceso_una_obra+0x10/0x10 ? bloqueo_adquirido+0x220/0x550 ? __lista_agregar_v\u00e1lido_o_informe+0x37/0x100 subproceso_trabajador+0x2e4/0x570 ? __pfx_kthread+0x10/0x10 ret_de_la_bifurcaci\u00f3n+0x31/0x60 ? Asignado por la tarea 1118: kasan_save_stack+0x30/0x50 kasan_save_track+0x14/0x30 __kasan_kmalloc+0xaa/0xb0 cifs_new_fileinfo+0xc8/0x9d0 [cifs] cifs_atomic_open+0x467/0x770 [cifs] lookup_open.isra.0+0x665/0x8b0 path_openat+0x4c3/0x1380 do_filp_open+0x167/0x270 do_sys_openat2+0x129/0x160 __x64_sys_creat+0xad/0xe0 do_syscall_64+0xbb/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f Liberado por la tarea 83: kasan_save_stack+0x30/0x50 kasan_save_track+0x14/0x30 kasan_save_free_info+0x3b/0x70 poison_slab_object+0xe9/0x160 __kasan_slab_free+0x32/0x50 kfree+0xf2/0x300 process_one_work+0x4c6/0x9f0 worker_thread+0x2e4/0x570 kthread+0x17f/0x1c0 ret_from_fork+0x31/0x60 ret_from_fork_asm+0x1a/0x30 \u00daltima creaci\u00f3n de trabajo potencialmente relacionado: kasan_save_stack+0x30/0x50 __kasan_record_aux_stack+0xad/0xc0 insert_work+0x29/0xe0 __queue_work+0x5ea/0x760 queue_work_on+0x6d/0x90 _cifsFileInfo_put+0x3f6/0x770 [cifs] smb2_compound_op+0x911/0x3940 [cifs] smb2_set_path_size+0x228/0x270 [cifs] cifs_set_file_size+0x197/0x460 [cifs] cifs_setattr+0xd9c/0x14b0 [cifs] notificar_cambio+0x4e3/0x740 hacer_truncar+0xfa/0x180 vfs_truncar+0x195/0x200 __x64_sys_truncar+0x109/0x150 hacer_syscall_64+0xbb/0x1d0 entrada_SYSCALL_64_despu\u00e9s_hwframe+0x77/0x7f"}], "lastModified": "2024-09-20T18:20:35.837", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C4FD2594-8BAC-4DC6-B031-962920000AEC", "versionEndExcluding": "6.6.51", "versionStartIncluding": "6.6.32"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2CB7114B-59C6-4708-AE2C-B7C2D0BA0FA2", "versionEndExcluding": "6.10.10", "versionStartIncluding": "6.9"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8B3CE743-2126-47A3-8B7C-822B502CF119"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4DEB27E7-30AA-45CC-8934-B89263EF3551"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E0005AEF-856E-47EB-BFE4-90C46899394D"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "39889A68-6D34-47A6-82FC-CD0BF23D6754"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B8383ABF-1457-401F-9B61-EE50F4C61F4F"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B77A9280-37E6-49AD-B559-5B23A3B1DC3D"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}