{"id":"CVE-2023-54058","summary":"firmware: arm_ffa: Check if ffa_driver remove is present before executing","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_ffa: Check if ffa_driver remove is present before executing\n\nCurrently ffa_drv-\u003eremove() is called unconditionally from\nffa_device_remove(). Since the driver registration doesn't check for it\nand allows it to be registered without .remove callback, we need to check\nfor the presence of it before executing it from ffa_device_remove() to\nabove a NULL pointer dereference like the one below:\n\n  | Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\n  | Mem abort info:\n  |   ESR = 0x0000000086000004\n  |   EC = 0x21: IABT (current EL), IL = 32 bits\n  |   SET = 0, FnV = 0\n  |   EA = 0, S1PTW = 0\n  |   FSC = 0x04: level 0 translation fault\n  | user pgtable: 4k pages, 48-bit VAs, pgdp=0000000881cc8000\n  | [0000000000000000] pgd=0000000000000000, p4d=0000000000000000\n  | Internal error: Oops: 0000000086000004 [#1] PREEMPT SMP\n  | CPU: 3 PID: 130 Comm: rmmod Not tainted 6.3.0-rc7 #6\n  | Hardware name: FVP Base RevC (DT)\n  | pstate: 63402809 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=-c)\n  | pc : 0x0\n  | lr : ffa_device_remove+0x20/0x2c\n  | Call trace:\n  |  0x0\n  |  device_release_driver_internal+0x16c/0x260\n  |  driver_detach+0x90/0xd0\n  |  bus_remove_driver+0xdc/0x11c\n  |  driver_unregister+0x30/0x54\n  |  ffa_driver_unregister+0x14/0x20\n  |  cleanup_module+0x18/0xeec\n  |  __arm64_sys_delete_module+0x234/0x378\n  |  invoke_syscall+0x40/0x108\n  |  el0_svc_common+0xb4/0xf0\n  |  do_el0_svc+0x30/0xa4\n  |  el0_svc+0x2c/0x7c\n  |  el0t_64_sync_handler+0x84/0xf0\n  |  el0t_64_sync+0x190/0x194","modified":"2026-04-02T09:45:32.794895Z","published":"2025-12-24T12:23:05.899Z","related":["SUSE-SU-2026:0263-1","SUSE-SU-2026:0317-1","SUSE-SU-2026:0411-1","SUSE-SU-2026:0617-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54058.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/48399c297c46b4c8e77ebcf071bb586a42d0ca4e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6a26c62625c59b8dd7f52c518cb4f60a63470a0e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ad73dc7263ea90302d6c7eeb7e9f7cbcfa0b0617"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b71b55248a580e9c9befc4ae060539f1f8e477da"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54058.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-54058"},{"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":"244f5d597e1ea519c2085fbd9819458688775e42"},{"fixed":"6a26c62625c59b8dd7f52c518cb4f60a63470a0e"},{"fixed":"ad73dc7263ea90302d6c7eeb7e9f7cbcfa0b0617"},{"fixed":"48399c297c46b4c8e77ebcf071bb586a42d0ca4e"},{"fixed":"b71b55248a580e9c9befc4ae060539f1f8e477da"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0"},{"last_affected":"06560ba731e2775441c6dc9f0bf39f9f3606fbb7"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-54058.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.15.0"},{"fixed":"5.15.114"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.31"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.3.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-54058.json"}}],"schema_version":"1.7.5"}