{"id":"CVE-2023-54058","state":"PUBLISHED","title":"firmware: arm_ffa: Check if ffa_driver remove is present before executing","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","publishedAt":"2025-12-24T12:23:05.899Z","updatedAt":"2026-05-23T15:32:13.461Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"244f5d597e1ea519c2085fbd9819458688775e42","status":"affected","lessThan":"6a26c62625c59b8dd7f52c518cb4f60a63470a0e","versionType":"git"},{"version":"244f5d597e1ea519c2085fbd9819458688775e42","status":"affected","lessThan":"ad73dc7263ea90302d6c7eeb7e9f7cbcfa0b0617","versionType":"git"},{"version":"244f5d597e1ea519c2085fbd9819458688775e42","status":"affected","lessThan":"48399c297c46b4c8e77ebcf071bb586a42d0ca4e","versionType":"git"},{"version":"244f5d597e1ea519c2085fbd9819458688775e42","status":"affected","lessThan":"b71b55248a580e9c9befc4ae060539f1f8e477da","versionType":"git"},{"version":"06560ba731e2775441c6dc9f0bf39f9f3606fbb7","status":"affected","versionType":"git"},{"version":"5.14.14","status":"affected","lessThan":"5.15","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/arm_ffa/bus.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.15","versionType":"semver"},{"version":"5.15.114","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.31","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.3.5","status":"unaffected","lessThanOrEqual":"6.3.*","versionType":"semver"},{"version":"6.4","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/arm_ffa/bus.c"]}],"references":["https://git.kernel.org/stable/c/6a26c62625c59b8dd7f52c518cb4f60a63470a0e","https://git.kernel.org/stable/c/ad73dc7263ea90302d6c7eeb7e9f7cbcfa0b0617","https://git.kernel.org/stable/c/48399c297c46b4c8e77ebcf071bb586a42d0ca4e","https://git.kernel.org/stable/c/b71b55248a580e9c9befc4ae060539f1f8e477da"],"weaknesses":[],"ingestedAt":"2026-10-29T20:06:42.242Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/54xxx/CVE-2023-54058.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-54058","state":"PUBLISHED","datePublished":"2025-12-24T12:23:05.899Z","dateUpdated":"2026-05-23T15:32:13.461Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-12-24T12:21:05.091Z"},"containers":{"cna":{"title":"firmware: arm_ffa: Check if ffa_driver remove is present before executing","descriptions":[{"lang":"en","value":"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"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"244f5d597e1ea519c2085fbd9819458688775e42","status":"affected","lessThan":"6a26c62625c59b8dd7f52c518cb4f60a63470a0e","versionType":"git"},{"version":"244f5d597e1ea519c2085fbd9819458688775e42","status":"affected","lessThan":"ad73dc7263ea90302d6c7eeb7e9f7cbcfa0b0617","versionType":"git"},{"version":"244f5d597e1ea519c2085fbd9819458688775e42","status":"affected","lessThan":"48399c297c46b4c8e77ebcf071bb586a42d0ca4e","versionType":"git"},{"version":"244f5d597e1ea519c2085fbd9819458688775e42","status":"affected","lessThan":"b71b55248a580e9c9befc4ae060539f1f8e477da","versionType":"git"},{"version":"06560ba731e2775441c6dc9f0bf39f9f3606fbb7","status":"affected","versionType":"git"},{"version":"5.14.14","status":"affected","lessThan":"5.15","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/arm_ffa/bus.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.15","versionType":"semver"},{"version":"5.15.114","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.31","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.3.5","status":"unaffected","lessThanOrEqual":"6.3.*","versionType":"semver"},{"version":"6.4","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/arm_ffa/bus.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/6a26c62625c59b8dd7f52c518cb4f60a63470a0e"},{"url":"https://git.kernel.org/stable/c/ad73dc7263ea90302d6c7eeb7e9f7cbcfa0b0617"},{"url":"https://git.kernel.org/stable/c/48399c297c46b4c8e77ebcf071bb586a42d0ca4e"},{"url":"https://git.kernel.org/stable/c/b71b55248a580e9c9befc4ae060539f1f8e477da"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-23T15:32:13.461Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"5.15.114"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.1.31"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.3.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14.14"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}