{"id":"CVE-2024-43098","summary":"i3c: Use i3cdev-\u003edesc-\u003einfo instead of calling i3c_device_get_info() to avoid deadlock","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ni3c: Use i3cdev-\u003edesc-\u003einfo instead of calling i3c_device_get_info() to avoid deadlock\n\nA deadlock may happen since the i3c_master_register() acquires\n&i3cbus-\u003elock twice. See the log below.\nUse i3cdev-\u003edesc-\u003einfo instead of calling i3c_device_info() to\navoid acquiring the lock twice.\n\nv2:\n  - Modified the title and commit message\n\n============================================\nWARNING: possible recursive locking detected\n6.11.0-mainline\n--------------------------------------------\ninit/1 is trying to acquire lock:\nf1ffff80a6a40dc0 (&i3cbus-\u003elock){++++}-{3:3}, at: i3c_bus_normaluse_lock\n\nbut task is already holding lock:\nf1ffff80a6a40dc0 (&i3cbus-\u003elock){++++}-{3:3}, at: i3c_master_register\n\nother info that might help us debug this:\n Possible unsafe locking scenario:\n\n       CPU0\n       ----\n  lock(&i3cbus-\u003elock);\n  lock(&i3cbus-\u003elock);\n\n *** DEADLOCK ***\n\n May be due to missing lock nesting notation\n\n2 locks held by init/1:\n #0: fcffff809b6798f8 (&dev-\u003emutex){....}-{3:3}, at: __driver_attach\n #1: f1ffff80a6a40dc0 (&i3cbus-\u003elock){++++}-{3:3}, at: i3c_master_register\n\nstack backtrace:\nCPU: 6 UID: 0 PID: 1 Comm: init\nCall trace:\n dump_backtrace+0xfc/0x17c\n show_stack+0x18/0x28\n dump_stack_lvl+0x40/0xc0\n dump_stack+0x18/0x24\n print_deadlock_bug+0x388/0x390\n __lock_acquire+0x18bc/0x32ec\n lock_acquire+0x134/0x2b0\n down_read+0x50/0x19c\n i3c_bus_normaluse_lock+0x14/0x24\n i3c_device_get_info+0x24/0x58\n i3c_device_uevent+0x34/0xa4\n dev_uevent+0x310/0x384\n kobject_uevent_env+0x244/0x414\n kobject_uevent+0x14/0x20\n device_add+0x278/0x460\n device_register+0x20/0x34\n i3c_master_register_new_i3c_devs+0x78/0x154\n i3c_master_register+0x6a0/0x6d4\n mtk_i3c_master_probe+0x3b8/0x4d8\n platform_probe+0xa0/0xe0\n really_probe+0x114/0x454\n __driver_probe_device+0xa0/0x15c\n driver_probe_device+0x3c/0x1ac\n __driver_attach+0xc4/0x1f0\n bus_for_each_dev+0x104/0x160\n driver_attach+0x24/0x34\n bus_add_driver+0x14c/0x294\n driver_register+0x68/0x104\n __platform_driver_register+0x20/0x30\n init_module+0x20/0xfe4\n do_one_initcall+0x184/0x464\n do_init_module+0x58/0x1ec\n load_module+0xefc/0x10c8\n __arm64_sys_finit_module+0x238/0x33c\n invoke_syscall+0x58/0x10c\n el0_svc_common+0xa8/0xdc\n do_el0_svc+0x1c/0x28\n el0_svc+0x50/0xac\n el0t_64_sync_handler+0x70/0xbc\n el0t_64_sync+0x1a8/0x1ac","modified":"2026-04-02T12:17:58.718728Z","published":"2025-01-11T12:25:10.587Z","related":["MGASA-2025-0030","MGASA-2025-0032","USN-7379-2","USN-7380-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/43xxx/CVE-2024-43098.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1f51ae217d09c361ede900b94735a6d2df6c0344"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2d98fa2a50b8058de52ada168fa5dbabb574711b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5ac1dd51aaa0ce8b5421d1137e857955a4b6f55e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6cf7b65f7029914dc0cd7db86fac9ee5159008c6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/816187b1833908941286e71b0041059a4acd52ed"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9a2173660ee53d5699744f02e6ab7bf89fcd0b1a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ffe19e363c6f8b992ba835a361542568dea17409"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/43xxx/CVE-2024-43098.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-43098"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0"},{"fixed":"9a2173660ee53d5699744f02e6ab7bf89fcd0b1a"},{"fixed":"5ac1dd51aaa0ce8b5421d1137e857955a4b6f55e"},{"fixed":"2d98fa2a50b8058de52ada168fa5dbabb574711b"},{"fixed":"816187b1833908941286e71b0041059a4acd52ed"},{"fixed":"ffe19e363c6f8b992ba835a361542568dea17409"},{"fixed":"1f51ae217d09c361ede900b94735a6d2df6c0344"},{"fixed":"6cf7b65f7029914dc0cd7db86fac9ee5159008c6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-43098.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"}]}