{"id":"DEBIAN-CVE-2025-37905","details":"In the Linux kernel, the following vulnerability has been resolved:  firmware: arm_scmi: Balance device refcount when destroying devices  Using device_find_child() to lookup the proper SCMI device to destroy causes an unbalance in device refcount, since device_find_child() calls an implicit get_device(): this, in turns, inhibits the call of the provided release methods upon devices destruction.  As a consequence, one of the structures that is not freed properly upon destruction is the internal struct device_private dev-\u003ep populated by the drivers subsystem core.  KMemleak detects this situation since loading/unloding some SCMI driver causes related devices to be created/destroyed without calling any device_release method.  unreferenced object 0xffff00000f583800 (size 512):   comm \"insmod\", pid 227, jiffies 4294912190   hex dump (first 32 bytes):     00 00 00 00 ad 4e ad de ff ff ff ff 00 00 00 00  .....N..........     ff ff ff ff ff ff ff ff 60 36 1d 8a 00 80 ff ff  ........`6......   backtrace (crc 114e2eed):     kmemleak_alloc+0xbc/0xd8     __kmalloc_cache_noprof+0x2dc/0x398     device_add+0x954/0x12d0     device_register+0x28/0x40     __scmi_device_create.part.0+0x1bc/0x380     scmi_device_create+0x2d0/0x390     scmi_create_protocol_devices+0x74/0xf8     scmi_device_request_notifier+0x1f8/0x2a8     notifier_call_chain+0x110/0x3b0     blocking_notifier_call_chain+0x70/0xb0     scmi_driver_register+0x350/0x7f0     0xffff80000a3b3038     do_one_initcall+0x12c/0x730     do_init_module+0x1dc/0x640     load_module+0x4b20/0x5b70     init_module_from_file+0xec/0x158  $ ./scripts/faddr2line ./vmlinux device_add+0x954/0x12d0 device_add+0x954/0x12d0: kmalloc_noprof at include/linux/slab.h:901 (inlined by) kzalloc_noprof at include/linux/slab.h:1037 (inlined by) device_private_init at drivers/base/core.c:3510 (inlined by) device_add at drivers/base/core.c:3561  Balance device refcount by issuing a put_device() on devices found via device_find_child().","modified":"2026-09-01T16:06:13.169732833Z","published":"2025-05-20T16:15:26.927Z","upstream":["CVE-2025-37905"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2025-37905"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.140-1"}]}],"versions":["6.1.106-1","6.1.106-2","6.1.106-3","6.1.112-1","6.1.115-1","6.1.119-1","6.1.123-1","6.1.124-1","6.1.128-1","6.1.129-1","6.1.133-1","6.1.135-1","6.1.137-1","6.1.139-1","6.1.27-1","6.1.37-1","6.1.38-1","6.1.38-2","6.1.38-2~bpo11+1","6.1.38-3","6.1.38-4","6.1.38-4~bpo11+1","6.1.52-1","6.1.55-1","6.1.55-1~bpo11+1","6.1.64-1","6.1.66-1","6.1.67-1","6.1.69-1","6.1.69-1~bpo11+1","6.1.76-1","6.1.76-1~bpo11+1","6.1.82-1","6.1.85-1","6.1.90-1","6.1.90-1~bpo11+1","6.1.94-1","6.1.94-1~bpo11+1","6.1.98-1","6.1.99-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-37905.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.29-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-37905.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.29-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-37905.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}