{ "containers": { "cna": { "providerMetadata": { "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" }, "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 \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 \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" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/smb/client/smb2inode.c" ], "versions": [ { "version": "1e60bc0e9543", "lessThan": "5a72d1edb084", "status": "affected", "versionType": "git" }, { "version": "71f15c90e785", "lessThan": "762099898309", "status": "affected", "versionType": "git" }, { "version": "71f15c90e785", "lessThan": "f9c169b51b6c", "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/smb/client/smb2inode.c" ], "versions": [ { "version": "6.9", "status": "affected" }, { "version": "0", "lessThan": "6.9", "status": "unaffected", "versionType": "custom" }, { "version": "6.6.51", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.10.10", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.11", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/5a72d1edb0843e4c927a4096f81e631031c25c28" }, { "url": "https://git.kernel.org/stable/c/762099898309218b4a7954f3d49e985dc4dfd638" }, { "url": "https://git.kernel.org/stable/c/f9c169b51b6ce20394594ef674d6b10efba31220" } ], "title": "smb: client: fix double put of @cfile in smb2_set_path_size()", "x_generator": { "engine": "bippy-c9c4e1df01b2" } } }, "cveMetadata": { "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", "cveID": "CVE-2024-46796", "requesterUserId": "gregkh@kernel.org", "serial": "1", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.0" }