CVE-2023-54115

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

pcmcia: rsrcnonstatic: Fix memory leak in nonstaticreleaseresourcedb()

When nonstaticreleaseresourcedb() frees all resources associated with an PCMCIA socket, it forgets to free socketdata too, causing a memory leak observable with kmemleak:

unreferenced object 0xc28d1000 (size 64): comm "systemd-udevd", pid 297, jiffies 4294898478 (age 194.484s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 f0 85 0e c3 00 00 00 00 ................ 00 00 00 00 0c 10 8d c2 00 00 00 00 00 00 00 00 ................ backtrace: [<ffda4245>] __kmemcacheallocnode+0x2d7/0x4a0 [<7e51f0c8>] kmalloctrace+0x31/0xa4 [<d52b4ca0>] nonstaticinit+0x24/0x1a4 [pcmciarsrc] [<a2f13e08>] pcmciaregistersocket+0x200/0x35c [pcmciacore] [<a728be1b>] yentaprobe+0x4d8/0xa70 [yentasocket] [<c48fac39>] pcideviceprobe+0x99/0x194 [<84b7c690>] reallyprobe+0x181/0x45c [<8060fe6e>] __driverprobedevice+0x75/0x1f4 [<b9b76f43>] driverprobedevice+0x28/0xac [<648b766f>] __driverattach+0xeb/0x1e4 [<6e9659eb>] busforeachdev+0x61/0xb4 [<25a669f3>] driverattach+0x1e/0x28 [<d8671d6b>] busadddriver+0x102/0x20c [<df0d323c>] driverregister+0x5b/0x120 [<942cd8a4>] __pciregisterdriver+0x44/0x4c [<e536027e>] UNIQUEIDaddressablecleanupmodule188+0x1c/0xfffff000 [iTCOvendorsupport]

Fix this by freeing socket_data too.

Tested on a Acer Travelmate 4002WLMi by manually binding/unbinding the yentacardbus driver (yentasocket).