CVE-2024-46796: In the Linux kernel, the following vulnerability has been resolved:  smb: client: fix double put of @cfile in smb2_set_path_size()  If smb2_compound_op() is called with a valid @cfile and returned -EINVAL, we need to call cifs_get_writable_path() before retrying it as the reference of @cfile was already dropped by previous call.  This fixes the following KASAN splat when running fstests generic/013 against Windows Server 2022:    CIFS: Attempting to mount //w22-fs0/scratch   run fstests generic/013 at 2024-09-02 19:48:59   ==================================================================   BUG: KASAN: slab-use-after-free in detach_if_pending+0xab/0x200   Write of size 8 at addr ffff88811f1a3730 by task kworker/3:2/176    CPU: 3 UID: 0 PID: 176 Comm: kworker/3:2 Not tainted 6.11.0-rc6 #2   Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-2.fc40   04/01/2014   Workqueue: cifsoplockd cifs_oplock_break [cifs]   Call Trace:    <TASK>    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]    ? lock_is_held_type+0x85/0xf0    ? mark_held_locks+0x1a/0x90    process_one_work+0x4c6/0x9f0    ? find_held_lock+0x8a/0xa0    ? __pfx_process_one_work+0x10/0x10    ? lock_acquired+0x220/0x550    ? __list_add_valid_or_report+0x37/0x100    worker_thread+0x2e4/0x570    ? __kthread_parkme+0xd1/0xf0    ? __pfx_worker_thread+0x10/0x10    kthread+0x17f/0x1c0    ? kthread+0xda/0x1c0    ? __pfx_kthread+0x10/0x10    ret_from_fork+0x31/0x60    ? __pfx_kthread+0x10/0x10    ret_from_fork_asm+0x1a/0x30    </TASK>    Allocated by task 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    Freed by task 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    Last potentially related work creation:    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]    notify_change+0x4e3/0x740    do_truncate+0xfa/0x180    vfs_truncate+0x195/0x200    __x64_sys_truncate+0x109/0x150    do_syscall_64+0xbb/0x1d0    entry_SYSCALL_64_after_hwframe+0x77/0x7f