{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2024-47688", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-09-30T16:00:12.941Z", "datePublished": "2024-10-21T11:53:28.526Z", "dateUpdated": "2026-05-11T20:38:50.500Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T20:38:50.500Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndriver core: Fix a potential null-ptr-deref in module_add_driver()\n\nInject fault while probing of-fpga-region, if kasprintf() fails in\nmodule_add_driver(), the second sysfs_remove_link() in exit path will cause\nnull-ptr-deref as below because kernfs_name_hash() will call strlen() with\nNULL driver_name.\n\nFix it by releasing resources based on the exit path sequence.\n\n\t KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\n\t Mem abort info:\n\t ESR = 0x0000000096000005\n\t EC = 0x25: DABT (current EL), IL = 32 bits\n\t SET = 0, FnV = 0\n\t EA = 0, S1PTW = 0\n\t FSC = 0x05: level 1 translation fault\n\t Data abort info:\n\t ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000\n\t CM = 0, WnR = 0, TnD = 0, TagAccess = 0\n\t GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0\n\t [dfffffc000000000] address between user and kernel address ranges\n\t Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP\n\t Dumping ftrace buffer:\n\t (ftrace buffer empty)\n\t Modules linked in: of_fpga_region(+) fpga_region fpga_bridge cfg80211 rfkill 8021q garp mrp stp llc ipv6 [last unloaded: of_fpga_region]\n\t CPU: 2 UID: 0 PID: 2036 Comm: modprobe Not tainted 6.11.0-rc2-g6a0e38264012 #295\n\t Hardware name: linux,dummy-virt (DT)\n\t pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n\t pc : strlen+0x24/0xb0\n\t lr : kernfs_name_hash+0x1c/0xc4\n\t sp : ffffffc081f97380\n\t x29: ffffffc081f97380 x28: ffffffc081f97b90 x27: ffffff80c821c2a0\n\t x26: ffffffedac0be418 x25: 0000000000000000 x24: ffffff80c09d2000\n\t x23: 0000000000000000 x22: 0000000000000000 x21: 0000000000000000\n\t x20: 0000000000000000 x19: 0000000000000000 x18: 0000000000001840\n\t x17: 0000000000000000 x16: 0000000000000000 x15: 1ffffff8103f2e42\n\t x14: 00000000f1f1f1f1 x13: 0000000000000004 x12: ffffffb01812d61d\n\t x11: 1ffffff01812d61c x10: ffffffb01812d61c x9 : dfffffc000000000\n\t x8 : 0000004fe7ed29e4 x7 : ffffff80c096b0e7 x6 : 0000000000000001\n\t x5 : ffffff80c096b0e0 x4 : 1ffffffdb990efa2 x3 : 0000000000000000\n\t x2 : 0000000000000000 x1 : dfffffc000000000 x0 : 0000000000000000\n\t Call trace:\n\t strlen+0x24/0xb0\n\t kernfs_name_hash+0x1c/0xc4\n\t kernfs_find_ns+0x118/0x2e8\n\t kernfs_remove_by_name_ns+0x80/0x100\n\t sysfs_remove_link+0x74/0xa8\n\t module_add_driver+0x278/0x394\n\t bus_add_driver+0x1f0/0x43c\n\t driver_register+0xf4/0x3c0\n\t __platform_driver_register+0x60/0x88\n\t of_fpga_region_init+0x20/0x1000 [of_fpga_region]\n\t do_one_initcall+0x110/0x788\n\t do_init_module+0x1dc/0x5c8\n\t load_module+0x3c38/0x4cac\n\t init_module_from_file+0xd4/0x128\n\t idempotent_init_module+0x2cc/0x528\n\t __arm64_sys_finit_module+0xac/0x100\n\t invoke_syscall+0x6c/0x258\n\t el0_svc_common.constprop.0+0x160/0x22c\n\t do_el0_svc+0x44/0x5c\n\t el0_svc+0x48/0xb8\n\t el0t_64_sync_handler+0x13c/0x158\n\t el0t_64_sync+0x190/0x194\n\t Code: f2fbffe1 a90157f4 12000802 aa0003f5 (38e16861)\n\t ---[ end trace 0000000000000000 ]---\n\t Kernel panic - not syncing: Oops: Fatal exception"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/base/module.c"], "versions": [{"version": "28f5a08600d0ea6831629d450193c4045094e729", "lessThan": "b8e45b910525704010d10c9dcbf2abf3005aa97c", "status": "affected", "versionType": "git"}, {"version": "85d2b0aa170351380be39fe4ff7973df1427fe76", "lessThan": "4b5d48b7a29cc6d508121a4b4e0c97a891e5273c", "status": "affected", "versionType": "git"}, {"version": "85d2b0aa170351380be39fe4ff7973df1427fe76", "lessThan": "dcb9d581dee4c23f2378b6650511ece80dda4e2f", "status": "affected", "versionType": "git"}, {"version": "85d2b0aa170351380be39fe4ff7973df1427fe76", "lessThan": "18ec12c97b39ff6aa15beb8d2b25d15cd44b87d8", "status": "affected", "versionType": "git"}, {"version": "51dacb1b0467b616463a334cbcd048f5710ba2aa", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/base/module.c"], "versions": [{"version": "6.10", "status": "affected"}, {"version": "0", "lessThan": "6.10", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.54", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.10.13", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.11.2", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6.33", "versionEndExcluding": "6.6.54"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "6.10.13"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "6.11.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "6.12"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9.4"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/b8e45b910525704010d10c9dcbf2abf3005aa97c"}, {"url": "https://git.kernel.org/stable/c/4b5d48b7a29cc6d508121a4b4e0c97a891e5273c"}, {"url": "https://git.kernel.org/stable/c/dcb9d581dee4c23f2378b6650511ece80dda4e2f"}, {"url": "https://git.kernel.org/stable/c/18ec12c97b39ff6aa15beb8d2b25d15cd44b87d8"}], "title": "driver core: Fix a potential null-ptr-deref in module_add_driver()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-47688", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-10-21T13:06:20.271909Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-10-21T13:14:15.570Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-47688", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-10-21T13:06:20.271909Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-10-21T13:06:23.951Z"}}], "cna": {"title": "driver core: Fix a potential null-ptr-deref in module_add_driver()", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "28f5a08600d0ea6831629d450193c4045094e729", "lessThan": "b8e45b910525704010d10c9dcbf2abf3005aa97c", "versionType": "git"}, {"status": "affected", "version": "85d2b0aa170351380be39fe4ff7973df1427fe76", "lessThan": "4b5d48b7a29cc6d508121a4b4e0c97a891e5273c", "versionType": "git"}, {"status": "affected", "version": "85d2b0aa170351380be39fe4ff7973df1427fe76", "lessThan": "dcb9d581dee4c23f2378b6650511ece80dda4e2f", "versionType": "git"}, {"status": "affected", "version": "85d2b0aa170351380be39fe4ff7973df1427fe76", "lessThan": "18ec12c97b39ff6aa15beb8d2b25d15cd44b87d8", "versionType": "git"}, {"status": "affected", "version": "51dacb1b0467b616463a334cbcd048f5710ba2aa", "versionType": "git"}], "programFiles": ["drivers/base/module.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.10"}, {"status": "unaffected", "version": "0", "lessThan": "6.10", "versionType": "semver"}, {"status": "unaffected", "version": "6.6.54", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.10.13", "versionType": "semver", "lessThanOrEqual": "6.10.*"}, {"status": "unaffected", "version": "6.11.2", "versionType": "semver", "lessThanOrEqual": "6.11.*"}, {"status": "unaffected", "version": "6.12", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/base/module.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/b8e45b910525704010d10c9dcbf2abf3005aa97c"}, {"url": "https://git.kernel.org/stable/c/4b5d48b7a29cc6d508121a4b4e0c97a891e5273c"}, {"url": "https://git.kernel.org/stable/c/dcb9d581dee4c23f2378b6650511ece80dda4e2f"}, {"url": "https://git.kernel.org/stable/c/18ec12c97b39ff6aa15beb8d2b25d15cd44b87d8"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndriver core: Fix a potential null-ptr-deref in module_add_driver()\n\nInject fault while probing of-fpga-region, if kasprintf() fails in\nmodule_add_driver(), the second sysfs_remove_link() in exit path will cause\nnull-ptr-deref as below because kernfs_name_hash() will call strlen() with\nNULL driver_name.\n\nFix it by releasing resources based on the exit path sequence.\n\n\t KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\n\t Mem abort info:\n\t ESR = 0x0000000096000005\n\t EC = 0x25: DABT (current EL), IL = 32 bits\n\t SET = 0, FnV = 0\n\t EA = 0, S1PTW = 0\n\t FSC = 0x05: level 1 translation fault\n\t Data abort info:\n\t ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000\n\t CM = 0, WnR = 0, TnD = 0, TagAccess = 0\n\t GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0\n\t [dfffffc000000000] address between user and kernel address ranges\n\t Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP\n\t Dumping ftrace buffer:\n\t (ftrace buffer empty)\n\t Modules linked in: of_fpga_region(+) fpga_region fpga_bridge cfg80211 rfkill 8021q garp mrp stp llc ipv6 [last unloaded: of_fpga_region]\n\t CPU: 2 UID: 0 PID: 2036 Comm: modprobe Not tainted 6.11.0-rc2-g6a0e38264012 #295\n\t Hardware name: linux,dummy-virt (DT)\n\t pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n\t pc : strlen+0x24/0xb0\n\t lr : kernfs_name_hash+0x1c/0xc4\n\t sp : ffffffc081f97380\n\t x29: ffffffc081f97380 x28: ffffffc081f97b90 x27: ffffff80c821c2a0\n\t x26: ffffffedac0be418 x25: 0000000000000000 x24: ffffff80c09d2000\n\t x23: 0000000000000000 x22: 0000000000000000 x21: 0000000000000000\n\t x20: 0000000000000000 x19: 0000000000000000 x18: 0000000000001840\n\t x17: 0000000000000000 x16: 0000000000000000 x15: 1ffffff8103f2e42\n\t x14: 00000000f1f1f1f1 x13: 0000000000000004 x12: ffffffb01812d61d\n\t x11: 1ffffff01812d61c x10: ffffffb01812d61c x9 : dfffffc000000000\n\t x8 : 0000004fe7ed29e4 x7 : ffffff80c096b0e7 x6 : 0000000000000001\n\t x5 : ffffff80c096b0e0 x4 : 1ffffffdb990efa2 x3 : 0000000000000000\n\t x2 : 0000000000000000 x1 : dfffffc000000000 x0 : 0000000000000000\n\t Call trace:\n\t strlen+0x24/0xb0\n\t kernfs_name_hash+0x1c/0xc4\n\t kernfs_find_ns+0x118/0x2e8\n\t kernfs_remove_by_name_ns+0x80/0x100\n\t sysfs_remove_link+0x74/0xa8\n\t module_add_driver+0x278/0x394\n\t bus_add_driver+0x1f0/0x43c\n\t driver_register+0xf4/0x3c0\n\t __platform_driver_register+0x60/0x88\n\t of_fpga_region_init+0x20/0x1000 [of_fpga_region]\n\t do_one_initcall+0x110/0x788\n\t do_init_module+0x1dc/0x5c8\n\t load_module+0x3c38/0x4cac\n\t init_module_from_file+0xd4/0x128\n\t idempotent_init_module+0x2cc/0x528\n\t __arm64_sys_finit_module+0xac/0x100\n\t invoke_syscall+0x6c/0x258\n\t el0_svc_common.constprop.0+0x160/0x22c\n\t do_el0_svc+0x44/0x5c\n\t el0_svc+0x48/0xb8\n\t el0t_64_sync_handler+0x13c/0x158\n\t el0t_64_sync+0x190/0x194\n\t Code: f2fbffe1 a90157f4 12000802 aa0003f5 (38e16861)\n\t ---[ end trace 0000000000000000 ]---\n\t Kernel panic - not syncing: Oops: Fatal exception"}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.54", "versionStartIncluding": "6.6.33"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.10.13", "versionStartIncluding": "6.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.11.2", "versionStartIncluding": "6.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12", "versionStartIncluding": "6.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "6.9.4"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T12:58:54.708Z"}}}, "cveMetadata": {"cveId": "CVE-2024-47688", "state": "PUBLISHED", "dateUpdated": "2025-05-04T12:58:54.708Z", "dateReserved": "2024-09-30T16:00:12.941Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-10-21T11:53:28.526Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "EDE65514-BE18-441F-BC12-FD7B0412ACAF", "versionEndExcluding": "6.6.54", "versionStartIncluding": "6.6.33", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "1AD9A837-E824-444A-8442-914E09BE6199", "versionEndExcluding": "6.10", "versionStartIncluding": "6.9.4", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "767D4D2D-C6E7-4B7D-9446-CFC8F8FF2FBB", "versionEndExcluding": "6.10.13", "versionStartIncluding": "6.10", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "AB755D26-97F4-43B6-8604-CD076811E181", "versionEndExcluding": "6.11.2", "versionStartIncluding": "6.11", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndriver core: Fix a potential null-ptr-deref in module_add_driver()\n\nInject fault while probing of-fpga-region, if kasprintf() fails in\nmodule_add_driver(), the second sysfs_remove_link() in exit path will cause\nnull-ptr-deref as below because kernfs_name_hash() will call strlen() with\nNULL driver_name.\n\nFix it by releasing resources based on the exit path sequence.\n\n\t KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\n\t Mem abort info:\n\t ESR = 0x0000000096000005\n\t EC = 0x25: DABT (current EL), IL = 32 bits\n\t SET = 0, FnV = 0\n\t EA = 0, S1PTW = 0\n\t FSC = 0x05: level 1 translation fault\n\t Data abort info:\n\t ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000\n\t CM = 0, WnR = 0, TnD = 0, TagAccess = 0\n\t GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0\n\t [dfffffc000000000] address between user and kernel address ranges\n\t Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP\n\t Dumping ftrace buffer:\n\t (ftrace buffer empty)\n\t Modules linked in: of_fpga_region(+) fpga_region fpga_bridge cfg80211 rfkill 8021q garp mrp stp llc ipv6 [last unloaded: of_fpga_region]\n\t CPU: 2 UID: 0 PID: 2036 Comm: modprobe Not tainted 6.11.0-rc2-g6a0e38264012 #295\n\t Hardware name: linux,dummy-virt (DT)\n\t pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n\t pc : strlen+0x24/0xb0\n\t lr : kernfs_name_hash+0x1c/0xc4\n\t sp : ffffffc081f97380\n\t x29: ffffffc081f97380 x28: ffffffc081f97b90 x27: ffffff80c821c2a0\n\t x26: ffffffedac0be418 x25: 0000000000000000 x24: ffffff80c09d2000\n\t x23: 0000000000000000 x22: 0000000000000000 x21: 0000000000000000\n\t x20: 0000000000000000 x19: 0000000000000000 x18: 0000000000001840\n\t x17: 0000000000000000 x16: 0000000000000000 x15: 1ffffff8103f2e42\n\t x14: 00000000f1f1f1f1 x13: 0000000000000004 x12: ffffffb01812d61d\n\t x11: 1ffffff01812d61c x10: ffffffb01812d61c x9 : dfffffc000000000\n\t x8 : 0000004fe7ed29e4 x7 : ffffff80c096b0e7 x6 : 0000000000000001\n\t x5 : ffffff80c096b0e0 x4 : 1ffffffdb990efa2 x3 : 0000000000000000\n\t x2 : 0000000000000000 x1 : dfffffc000000000 x0 : 0000000000000000\n\t Call trace:\n\t strlen+0x24/0xb0\n\t kernfs_name_hash+0x1c/0xc4\n\t kernfs_find_ns+0x118/0x2e8\n\t kernfs_remove_by_name_ns+0x80/0x100\n\t sysfs_remove_link+0x74/0xa8\n\t module_add_driver+0x278/0x394\n\t bus_add_driver+0x1f0/0x43c\n\t driver_register+0xf4/0x3c0\n\t __platform_driver_register+0x60/0x88\n\t of_fpga_region_init+0x20/0x1000 [of_fpga_region]\n\t do_one_initcall+0x110/0x788\n\t do_init_module+0x1dc/0x5c8\n\t load_module+0x3c38/0x4cac\n\t init_module_from_file+0xd4/0x128\n\t idempotent_init_module+0x2cc/0x528\n\t __arm64_sys_finit_module+0xac/0x100\n\t invoke_syscall+0x6c/0x258\n\t el0_svc_common.constprop.0+0x160/0x22c\n\t do_el0_svc+0x44/0x5c\n\t el0_svc+0x48/0xb8\n\t el0t_64_sync_handler+0x13c/0x158\n\t el0t_64_sync+0x190/0x194\n\t Code: f2fbffe1 a90157f4 12000802 aa0003f5 (38e16861)\n\t ---[ end trace 0000000000000000 ]---\n\t Kernel panic - not syncing: Oops: Fatal exception"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: n\u00facleo del controlador: se corrige un posible error de inyecci\u00f3n de ptr nulo en module_add_driver() mientras se sondea la regi\u00f3n de fpga. Si kasprintf() falla en module_add_driver(), el segundo sysfs_remove_link() en la ruta de salida provocar\u00e1 un error de ptr nulo como se muestra a continuaci\u00f3n, ya que kernfs_name_hash() llamar\u00e1 a strlen() con driver_name NULL. Se soluciona liberando recursos seg\u00fan la secuencia de la ruta de salida. KASAN: null-ptr-deref en el rango [0x0000000000000000-0x0000000000000007] Informaci\u00f3n de cancelaci\u00f3n de memoria: ESR = 0x0000000096000005 EC = 0x25: DABT (EL actual), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x05: error de traducci\u00f3n de nivel 1 Informaci\u00f3n de cancelaci\u00f3n de datos: ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000 CM = 0, WnR = 0, TnD = 0, TagAccess = 0 GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [dfffffc000000000] direcci\u00f3n entre rangos de direcciones de usuario y kernel Error interno: Oops: 0000000096000005 [#1] PREEMPT SMP Dumping ftrace buffer: (ftrace buffer empty) M\u00f3dulos vinculados en: of_fpga_region(+) fpga_region fpga_bridge cfg80211 rfkill 8021q garp mrp stp llc ipv6 [\u00faltima descarga: of_fpga_region] CPU: 2 UID: 0 PID: 2036 Comm: modprobe No contaminado 6.11.0-rc2-g6a0e38264012 #295 Nombre del hardware: linux,dummy-virt (DT) pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : strlen+0x24/0xb0 lr : hash_nombre_kernfs+0x1c/0xc4 sp : ffffffc081f97380 x29: ffffffc081f97380 x28: ffffffc081f97b90 x27: ffffff80c821c2a0 x26: ffffffedac0be418 x25: 0000000000000000 x24: ffffff80c09d2000 x23: 0000000000000000 x22: 0000000000000000 x21: 0000000000000000 x20: 0000000000000000 x19: 0000000000000000 x18: 00000000000001840 x17: 0000000000000000 x16: 0000000000000000 x15: 1ffffff8103f2e42 x14: 00000000f1f1f1f1 x13: 0000000000000004 x12: ffffffb01812d61d x11: 1ffffff01812d61c x10: ffffffb01812d61c x9: dfffffc000000000 x8: 0000004fe7ed29e4 x7 : ffffff80c096b0e7 x6 : 0000000000000001 x5 : ffffff80c096b0e0 x4 : 1ffffffdb990efa2 x3 : 000000000000000 x2 : 000000000000000 x1 : dfffffc000000000 x0 : 0000000000000000 Rastreo de llamadas: strlen+0x24/0xb0 kernfs_name_hash+0x1c/0xc4 kernfs_find_ns+0x118/0x2e8 kernfs_remove_by_name_ns+0x80/0x100 sysfs_remove_link+0x74/0xa8 m\u00f3dulo_agregar_controlador+0x278/0x394 bus_agregar_controlador+0x1f0/0x43c registro_controlador+0xf4/0x3c0 __registro_controlador_plataforma+0x60/0x88 de_regi\u00f3n_fpga_init+0x20/0x1000 [de_regi\u00f3n_fpga] hacer_una_llamada_inicio+0x110/0x788 hacer_m\u00f3dulo_inicio+0x1dc/0x5c8 cargar_m\u00f3dulo+0x3c38/0x4cac m\u00f3dulo_inicio_desde_archivo+0xd4/0x128 idempotent_init_module+0x2cc/0x528 __arm64_sys_finit_module+0xac/0x100 anybody_syscall+0x6c/0x258 el0_svc_common.constprop.0+0x160/0x22c do_el0_svc+0x44/0x5c el0_svc+0x48/0xb8 el0t_64_sync_handler+0x13c/0x158 el0t_64_sync+0x190/0x194 C\u00f3digo: f2fbffe1 a90157f4 12000802 aa0003f5 (38e16861) ---[ fin del seguimiento 0000000000000000 ]--- P\u00e1nico del kernel: no se sincroniza: Ups: excepci\u00f3n fatal"}], "id": "CVE-2024-47688", "lastModified": "2024-10-23T15:36:21.977", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2024-10-21T12:15:05.653", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/18ec12c97b39ff6aa15beb8d2b25d15cd44b87d8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4b5d48b7a29cc6d508121a4b4e0c97a891e5273c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b8e45b910525704010d10c9dcbf2abf3005aa97c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/dcb9d581dee4c23f2378b6650511ece80dda4e2f"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: driver core: Fix a potential null-ptr-deref in module_add_driver()", "id": "2320263", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2320263"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndriver core: Fix a potential null-ptr-deref in module_add_driver()\nInject fault while probing of-fpga-region, if kasprintf() fails in\nmodule_add_driver(), the second sysfs_remove_link() in exit path will cause\nnull-ptr-deref as below because kernfs_name_hash() will call strlen() with\nNULL driver_name.\nFix it by releasing resources based on the exit path sequence.\nKASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\nMem abort info:\nESR = 0x0000000096000005\nEC = 0x25: DABT (current EL), IL = 32 bits\nSET = 0, FnV = 0\nEA = 0, S1PTW = 0\nFSC = 0x05: level 1 translation fault\nData abort info:\nISV = 0, ISS = 0x00000005, ISS2 = 0x00000000\nCM = 0, WnR = 0, TnD = 0, TagAccess = 0\nGCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0\n[dfffffc000000000] address between user and kernel address ranges\nInternal error: Oops: 0000000096000005 [#1] PREEMPT SMP\nDumping ftrace buffer:\n(ftrace buffer empty)\nModules linked in: of_fpga_region(+) fpga_region fpga_bridge cfg80211 rfkill 8021q garp mrp stp llc ipv6 [last unloaded: of_fpga_region]\nCPU: 2 UID: 0 PID: 2036 Comm: modprobe Not tainted 6.11.0-rc2-g6a0e38264012 #295\nHardware name: linux,dummy-virt (DT)\npstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\npc : strlen+0x24/0xb0\nlr : kernfs_name_hash+0x1c/0xc4\nsp : ffffffc081f97380\nx29: ffffffc081f97380 x28: ffffffc081f97b90 x27: ffffff80c821c2a0\nx26: ffffffedac0be418 x25: 0000000000000000 x24: ffffff80c09d2000\nx23: 0000000000000000 x22: 0000000000000000 x21: 0000000000000000\nx20: 0000000000000000 x19: 0000000000000000 x18: 0000000000001840\nx17: 0000000000000000 x16: 0000000000000000 x15: 1ffffff8103f2e42\nx14: 00000000f1f1f1f1 x13: 0000000000000004 x12: ffffffb01812d61d\nx11: 1ffffff01812d61c x10: ffffffb01812d61c x9 : dfffffc000000000\nx8 : 0000004fe7ed29e4 x7 : ffffff80c096b0e7 x6 : 0000000000000001\nx5 : ffffff80c096b0e0 x4 : 1ffffffdb990efa2 x3 : 0000000000000000\nx2 : 0000000000000000 x1 : dfffffc000000000 x0 : 0000000000000000\nCall trace:\nstrlen+0x24/0xb0\nkernfs_name_hash+0x1c/0xc4\nkernfs_find_ns+0x118/0x2e8\nkernfs_remove_by_name_ns+0x80/0x100\nsysfs_remove_link+0x74/0xa8\nmodule_add_driver+0x278/0x394\nbus_add_driver+0x1f0/0x43c\ndriver_register+0xf4/0x3c0\n__platform_driver_register+0x60/0x88\nof_fpga_region_init+0x20/0x1000 [of_fpga_region]\ndo_one_initcall+0x110/0x788\ndo_init_module+0x1dc/0x5c8\nload_module+0x3c38/0x4cac\ninit_module_from_file+0xd4/0x128\nidempotent_init_module+0x2cc/0x528\n__arm64_sys_finit_module+0xac/0x100\ninvoke_syscall+0x6c/0x258\nel0_svc_common.constprop.0+0x160/0x22c\ndo_el0_svc+0x44/0x5c\nel0_svc+0x48/0xb8\nel0t_64_sync_handler+0x13c/0x158\nel0t_64_sync+0x190/0x194\nCode: f2fbffe1 a90157f4 12000802 aa0003f5 (38e16861)\n---[ end trace 0000000000000000 ]---\nKernel panic - not syncing: Oops: Fatal exception"], "name": "CVE-2024-47688", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-10-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-47688\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-47688\nhttps://lore.kernel.org/linux-cve-announce/2024102110-CVE-2024-47688-0fe1@gregkh/T"], "threat_severity": "Moderate"}

{}