CVE-2023-53078

In the Linux kernel, the following vulnerability has been resolved:

scsi: scsidhalua: Fix memleak for 'qdata' in alua_activate()

If aluartpgqueue() failed from alua_activate(), then 'qdata' is not freed, which will cause following memleak:

unreferenced object 0xffff88810b2c6980 (size 32): comm "kworker/u16:2", pid 635322, jiffies 4355801099 (age 1216426.076s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 40 39 24 c1 ff ff ff ff 00 f8 ea 0a 81 88 ff ff @9$............. backtrace: [<0000000098f3a26d>] aluaactivate+0xb0/0x320 [<000000003b529641>] scsidhactivate+0xb2/0x140 [<000000007b296db3>] activatepathwork+0xc6/0xe0 [dmmultipath] [<000000007adc9ace>] processonework+0x3c5/0x730 [<00000000c457a985>] workerthread+0x93/0x650 [<00000000cb80e628>] kthread+0x1ba/0x210 [<00000000a1e61077>] retfrom_fork+0x22/0x30

Fix the problem by freeing 'qdata' in error path.