{"cve":"CVE-2023-54058","nvd":{"published":"2025-12-24T13:16:07.590","modified":"2026-06-17T06:46:43.647","status":"Deferred","description":"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->remove() 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","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/48399c297c46b4c8e77ebcf071bb586a42d0ca4e","https://git.kernel.org/stable/c/6a26c62625c59b8dd7f52c518cb4f60a63470a0e","https://git.kernel.org/stable/c/ad73dc7263ea90302d6c7eeb7e9f7cbcfa0b0617","https://git.kernel.org/stable/c/b71b55248a580e9c9befc4ae060539f1f8e477da"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:18:08.089039631+00:00"},"epss":{"cve":"CVE-2023-54058","score":0.00244,"percentile":0.15677,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}