{"id":"CVE-2024-56781","summary":"powerpc/prom_init: Fixup missing powermac #size-cells","details":"In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/prom_init: Fixup missing powermac #size-cells\n\nOn some powermacs `escc` nodes are missing `#size-cells` properties,\nwhich is deprecated and now triggers a warning at boot since commit\n045b14ca5c36 (\"of: WARN on deprecated #address-cells/#size-cells\nhandling\").\n\nFor example:\n\n  Missing '#size-cells' in /pci@f2000000/mac-io@c/escc@13000\n  WARNING: CPU: 0 PID: 0 at drivers/of/base.c:133 of_bus_n_size_cells+0x98/0x108\n  Hardware name: PowerMac3,1 7400 0xc0209 PowerMac\n  ...\n  Call Trace:\n    of_bus_n_size_cells+0x98/0x108 (unreliable)\n    of_bus_default_count_cells+0x40/0x60\n    __of_get_address+0xc8/0x21c\n    __of_address_to_resource+0x5c/0x228\n    pmz_init_port+0x5c/0x2ec\n    pmz_probe.isra.0+0x144/0x1e4\n    pmz_console_init+0x10/0x48\n    console_init+0xcc/0x138\n    start_kernel+0x5c4/0x694\n\nAs powermacs boot via prom_init it's possible to add the missing\nproperties to the device tree during boot, avoiding the warning. Note\nthat `escc-legacy` nodes are also missing `#size-cells` properties, but\nthey are skipped by the macio driver, so leave them alone.\n\nDepends-on: 045b14ca5c36 (\"of: WARN on deprecated #address-cells/#size-cells handling\")","modified":"2026-04-16T04:38:51.053775641Z","published":"2025-01-08T17:51:57.856Z","related":["USN-7379-2","USN-7380-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56781.json"},"references":[{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"},{"type":"WEB","url":"https://git.kernel.org/stable/c/0b94d838018fb0a824e0cd3149034928c99fb1b7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/296a109fa77110ba5267fe0e90a26005eecc2726"},{"type":"WEB","url":"https://git.kernel.org/stable/c/691284c2cd33ffaa0b35ce53b3286b90621e9dc9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6d5f0453a2228607333bff0c85238a3cb495d194"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a79a7e3c03ae2a07f68b5f24d5ed549f9799ec89"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cf89c9434af122f28a3552e6f9cc5158c33ce50a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ee68554d2c03e32077f7b984e5289fdb005036d2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56781.json"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-56781"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2"},{"fixed":"0b94d838018fb0a824e0cd3149034928c99fb1b7"},{"fixed":"a79a7e3c03ae2a07f68b5f24d5ed549f9799ec89"},{"fixed":"ee68554d2c03e32077f7b984e5289fdb005036d2"},{"fixed":"6d5f0453a2228607333bff0c85238a3cb495d194"},{"fixed":"691284c2cd33ffaa0b35ce53b3286b90621e9dc9"},{"fixed":"296a109fa77110ba5267fe0e90a26005eecc2726"},{"fixed":"cf89c9434af122f28a3552e6f9cc5158c33ce50a"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-56781.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.287"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.5.0"},{"fixed":"5.10.231"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.174"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.120"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.66"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-56781.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}