CVE-2023-54115

/// Technical description

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

pcmcia: rsrc_nonstatic: Fix memory leak in nonstatic_release_resource_db()

When nonstatic_release_resource_db() frees all resources associated

with an PCMCIA socket, it forgets to free socket_data 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>] __kmem_cache_alloc_node+0x2d7/0x4a0

[<7e51f0c8>] kmalloc_trace+0x31/0xa4

[<d52b4ca0>] nonstatic_init+0x24/0x1a4 [pcmcia_rsrc]

[<a2f13e08>] pcmcia_register_socket+0x200/0x35c [pcmcia_core]

[<a728be1b>] yenta_probe+0x4d8/0xa70 [yenta_socket]

[<c48fac39>] pci_device_probe+0x99/0x194

[<84b7c690>] really_probe+0x181/0x45c

[<8060fe6e>] __driver_pr

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References