{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-53023", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-03-27T16:40:15.753Z", "datePublished": "2025-03-27T16:43:49.142Z", "dateUpdated": "2025-05-04T07:47:53.637Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T07:47:53.637Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: nfc: Fix use-after-free in local_cleanup()\n\nFix a use-after-free that occurs in kfree_skb() called from\nlocal_cleanup(). This could happen when killing nfc daemon (e.g. neard)\nafter detaching an nfc device.\nWhen detaching an nfc device, local_cleanup() called from\nnfc_llcp_unregister_device() frees local->rx_pending and decreases\nlocal->ref by kref_put() in nfc_llcp_local_put().\nIn the terminating process, nfc daemon releases all sockets and it leads\nto decreasing local->ref. After the last release of local->ref,\nlocal_cleanup() called from local_release() frees local->rx_pending\nagain, which leads to the bug.\n\nSetting local->rx_pending to NULL in local_cleanup() could prevent\nuse-after-free when local_cleanup() is called twice.\n\nFound by a modified version of syzkaller.\n\nBUG: KASAN: use-after-free in kfree_skb()\n\nCall Trace:\ndump_stack_lvl (lib/dump_stack.c:106)\nprint_address_description.constprop.0.cold (mm/kasan/report.c:306)\nkasan_check_range (mm/kasan/generic.c:189)\nkfree_skb (net/core/skbuff.c:955)\nlocal_cleanup (net/nfc/llcp_core.c:159)\nnfc_llcp_local_put.part.0 (net/nfc/llcp_core.c:172)\nnfc_llcp_local_put (net/nfc/llcp_core.c:181)\nllcp_sock_destruct (net/nfc/llcp_sock.c:959)\n__sk_destruct (net/core/sock.c:2133)\nsk_destruct (net/core/sock.c:2181)\n__sk_free (net/core/sock.c:2192)\nsk_free (net/core/sock.c:2203)\nllcp_sock_release (net/nfc/llcp_sock.c:646)\n__sock_release (net/socket.c:650)\nsock_close (net/socket.c:1365)\n__fput (fs/file_table.c:306)\ntask_work_run (kernel/task_work.c:179)\nptrace_notify (kernel/signal.c:2354)\nsyscall_exit_to_user_mode_prepare (kernel/entry/common.c:278)\nsyscall_exit_to_user_mode (kernel/entry/common.c:296)\ndo_syscall_64 (arch/x86/entry/common.c:86)\nentry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:106)\n\nAllocated by task 4719:\nkasan_save_stack (mm/kasan/common.c:45)\n__kasan_slab_alloc (mm/kasan/common.c:325)\nslab_post_alloc_hook (mm/slab.h:766)\nkmem_cache_alloc_node (mm/slub.c:3497)\n__alloc_skb (net/core/skbuff.c:552)\npn533_recv_response (drivers/nfc/pn533/usb.c:65)\n__usb_hcd_giveback_urb (drivers/usb/core/hcd.c:1671)\nusb_giveback_urb_bh (drivers/usb/core/hcd.c:1704)\ntasklet_action_common.isra.0 (kernel/softirq.c:797)\n__do_softirq (kernel/softirq.c:571)\n\nFreed by task 1901:\nkasan_save_stack (mm/kasan/common.c:45)\nkasan_set_track (mm/kasan/common.c:52)\nkasan_save_free_info (mm/kasan/genericdd.c:518)\n__kasan_slab_free (mm/kasan/common.c:236)\nkmem_cache_free (mm/slub.c:3809)\nkfree_skbmem (net/core/skbuff.c:874)\nkfree_skb (net/core/skbuff.c:931)\nlocal_cleanup (net/nfc/llcp_core.c:159)\nnfc_llcp_unregister_device (net/nfc/llcp_core.c:1617)\nnfc_unregister_device (net/nfc/core.c:1179)\npn53x_unregister_nfc (drivers/nfc/pn533/pn533.c:2846)\npn533_usb_disconnect (drivers/nfc/pn533/usb.c:579)\nusb_unbind_interface (drivers/usb/core/driver.c:458)\ndevice_release_driver_internal (drivers/base/dd.c:1279)\nbus_remove_device (drivers/base/bus.c:529)\ndevice_del (drivers/base/core.c:3665)\nusb_disable_device (drivers/usb/core/message.c:1420)\nusb_disconnect (drivers/usb/core.c:2261)\nhub_event (drivers/usb/core/hub.c:5833)\nprocess_one_work (arch/x86/include/asm/jump_label.h:27 include/linux/jump_label.h:212 include/trace/events/workqueue.h:108 kernel/workqueue.c:2281)\nworker_thread (include/linux/list.h:282 kernel/workqueue.c:2423)\nkthread (kernel/kthread.c:319)\nret_from_fork (arch/x86/entry/entry_64.S:301)"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/nfc/llcp_core.c"], "versions": [{"version": "3536da06db0baa675f32de608c0a4c0f5ef0e9ff", "lessThan": "b09ae26f08aaf2d85f96ea7f90ddd3387f62216f", "status": "affected", "versionType": "git"}, {"version": "3536da06db0baa675f32de608c0a4c0f5ef0e9ff", "lessThan": "54f7be61584b8ec4c6df405f479495b9397bae4a", "status": "affected", "versionType": "git"}, {"version": "3536da06db0baa675f32de608c0a4c0f5ef0e9ff", "lessThan": "a59cdbda3714e11aa3ab579132864c4c8c6d54f9", "status": "affected", "versionType": "git"}, {"version": "3536da06db0baa675f32de608c0a4c0f5ef0e9ff", "lessThan": "ad1baab3a5c03692d22ce446f38596a126377f6a", "status": "affected", "versionType": "git"}, {"version": "3536da06db0baa675f32de608c0a4c0f5ef0e9ff", "lessThan": "7f129927feaf7c10b1c38bbce630172e9a08c834", "status": "affected", "versionType": "git"}, {"version": "3536da06db0baa675f32de608c0a4c0f5ef0e9ff", "lessThan": "d3605282ec3502ec8847915eb2cf1f340493ff79", "status": "affected", "versionType": "git"}, {"version": "3536da06db0baa675f32de608c0a4c0f5ef0e9ff", "lessThan": "4bb4db7f3187c6e3de6b229ffc87cdb30a2d22b6", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/nfc/llcp_core.c"], "versions": [{"version": "3.9", "status": "affected"}, {"version": "0", "lessThan": "3.9", "status": "unaffected", "versionType": "semver"}, {"version": "4.14.305", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver"}, {"version": "4.19.272", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.231", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.166", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.91", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.9", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.2", "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": "3.9", "versionEndExcluding": "4.14.305"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.9", "versionEndExcluding": "4.19.272"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.9", "versionEndExcluding": "5.4.231"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.9", "versionEndExcluding": "5.10.166"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.9", "versionEndExcluding": "5.15.91"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.9", "versionEndExcluding": "6.1.9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.9", "versionEndExcluding": "6.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/b09ae26f08aaf2d85f96ea7f90ddd3387f62216f"}, {"url": "https://git.kernel.org/stable/c/54f7be61584b8ec4c6df405f479495b9397bae4a"}, {"url": "https://git.kernel.org/stable/c/a59cdbda3714e11aa3ab579132864c4c8c6d54f9"}, {"url": "https://git.kernel.org/stable/c/ad1baab3a5c03692d22ce446f38596a126377f6a"}, {"url": "https://git.kernel.org/stable/c/7f129927feaf7c10b1c38bbce630172e9a08c834"}, {"url": "https://git.kernel.org/stable/c/d3605282ec3502ec8847915eb2cf1f340493ff79"}, {"url": "https://git.kernel.org/stable/c/4bb4db7f3187c6e3de6b229ffc87cdb30a2d22b6"}], "title": "net: nfc: Fix use-after-free in local_cleanup()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2023-53023", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-03-27T17:01:08.115465Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 Use After Free"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-03-27T17:08:23.496Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2023-53023", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-03-27T17:01:08.115465Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 Use After Free"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-03-27T17:01:09.390Z"}}], "cna": {"title": "net: nfc: Fix use-after-free in local_cleanup()", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "3536da06db0baa675f32de608c0a4c0f5ef0e9ff", "lessThan": "b09ae26f08aaf2d85f96ea7f90ddd3387f62216f", "versionType": "git"}, {"status": "affected", "version": "3536da06db0baa675f32de608c0a4c0f5ef0e9ff", "lessThan": "54f7be61584b8ec4c6df405f479495b9397bae4a", "versionType": "git"}, {"status": "affected", "version": "3536da06db0baa675f32de608c0a4c0f5ef0e9ff", "lessThan": "a59cdbda3714e11aa3ab579132864c4c8c6d54f9", "versionType": "git"}, {"status": "affected", "version": "3536da06db0baa675f32de608c0a4c0f5ef0e9ff", "lessThan": "ad1baab3a5c03692d22ce446f38596a126377f6a", "versionType": "git"}, {"status": "affected", "version": "3536da06db0baa675f32de608c0a4c0f5ef0e9ff", "lessThan": "7f129927feaf7c10b1c38bbce630172e9a08c834", "versionType": "git"}, {"status": "affected", "version": "3536da06db0baa675f32de608c0a4c0f5ef0e9ff", "lessThan": "d3605282ec3502ec8847915eb2cf1f340493ff79", "versionType": "git"}, {"status": "affected", "version": "3536da06db0baa675f32de608c0a4c0f5ef0e9ff", "lessThan": "4bb4db7f3187c6e3de6b229ffc87cdb30a2d22b6", "versionType": "git"}], "programFiles": ["net/nfc/llcp_core.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "3.9"}, {"status": "unaffected", "version": "0", "lessThan": "3.9", "versionType": "semver"}, {"status": "unaffected", "version": "4.14.305", "versionType": "semver", "lessThanOrEqual": "4.14.*"}, {"status": "unaffected", "version": "4.19.272", "versionType": "semver", "lessThanOrEqual": "4.19.*"}, {"status": "unaffected", "version": "5.4.231", "versionType": "semver", "lessThanOrEqual": "5.4.*"}, {"status": "unaffected", "version": "5.10.166", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.91", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.9", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.2", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/nfc/llcp_core.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/b09ae26f08aaf2d85f96ea7f90ddd3387f62216f"}, {"url": "https://git.kernel.org/stable/c/54f7be61584b8ec4c6df405f479495b9397bae4a"}, {"url": "https://git.kernel.org/stable/c/a59cdbda3714e11aa3ab579132864c4c8c6d54f9"}, {"url": "https://git.kernel.org/stable/c/ad1baab3a5c03692d22ce446f38596a126377f6a"}, {"url": "https://git.kernel.org/stable/c/7f129927feaf7c10b1c38bbce630172e9a08c834"}, {"url": "https://git.kernel.org/stable/c/d3605282ec3502ec8847915eb2cf1f340493ff79"}, {"url": "https://git.kernel.org/stable/c/4bb4db7f3187c6e3de6b229ffc87cdb30a2d22b6"}], "x_generator": {"engine": "bippy-5f407fcff5a0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: nfc: Fix use-after-free in local_cleanup()\n\nFix a use-after-free that occurs in kfree_skb() called from\nlocal_cleanup(). This could happen when killing nfc daemon (e.g. neard)\nafter detaching an nfc device.\nWhen detaching an nfc device, local_cleanup() called from\nnfc_llcp_unregister_device() frees local->rx_pending and decreases\nlocal->ref by kref_put() in nfc_llcp_local_put().\nIn the terminating process, nfc daemon releases all sockets and it leads\nto decreasing local->ref. After the last release of local->ref,\nlocal_cleanup() called from local_release() frees local->rx_pending\nagain, which leads to the bug.\n\nSetting local->rx_pending to NULL in local_cleanup() could prevent\nuse-after-free when local_cleanup() is called twice.\n\nFound by a modified version of syzkaller.\n\nBUG: KASAN: use-after-free in kfree_skb()\n\nCall Trace:\ndump_stack_lvl (lib/dump_stack.c:106)\nprint_address_description.constprop.0.cold (mm/kasan/report.c:306)\nkasan_check_range (mm/kasan/generic.c:189)\nkfree_skb (net/core/skbuff.c:955)\nlocal_cleanup (net/nfc/llcp_core.c:159)\nnfc_llcp_local_put.part.0 (net/nfc/llcp_core.c:172)\nnfc_llcp_local_put (net/nfc/llcp_core.c:181)\nllcp_sock_destruct (net/nfc/llcp_sock.c:959)\n__sk_destruct (net/core/sock.c:2133)\nsk_destruct (net/core/sock.c:2181)\n__sk_free (net/core/sock.c:2192)\nsk_free (net/core/sock.c:2203)\nllcp_sock_release (net/nfc/llcp_sock.c:646)\n__sock_release (net/socket.c:650)\nsock_close (net/socket.c:1365)\n__fput (fs/file_table.c:306)\ntask_work_run (kernel/task_work.c:179)\nptrace_notify (kernel/signal.c:2354)\nsyscall_exit_to_user_mode_prepare (kernel/entry/common.c:278)\nsyscall_exit_to_user_mode (kernel/entry/common.c:296)\ndo_syscall_64 (arch/x86/entry/common.c:86)\nentry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:106)\n\nAllocated by task 4719:\nkasan_save_stack (mm/kasan/common.c:45)\n__kasan_slab_alloc (mm/kasan/common.c:325)\nslab_post_alloc_hook (mm/slab.h:766)\nkmem_cache_alloc_node (mm/slub.c:3497)\n__alloc_skb (net/core/skbuff.c:552)\npn533_recv_response (drivers/nfc/pn533/usb.c:65)\n__usb_hcd_giveback_urb (drivers/usb/core/hcd.c:1671)\nusb_giveback_urb_bh (drivers/usb/core/hcd.c:1704)\ntasklet_action_common.isra.0 (kernel/softirq.c:797)\n__do_softirq (kernel/softirq.c:571)\n\nFreed by task 1901:\nkasan_save_stack (mm/kasan/common.c:45)\nkasan_set_track (mm/kasan/common.c:52)\nkasan_save_free_info (mm/kasan/genericdd.c:518)\n__kasan_slab_free (mm/kasan/common.c:236)\nkmem_cache_free (mm/slub.c:3809)\nkfree_skbmem (net/core/skbuff.c:874)\nkfree_skb (net/core/skbuff.c:931)\nlocal_cleanup (net/nfc/llcp_core.c:159)\nnfc_llcp_unregister_device (net/nfc/llcp_core.c:1617)\nnfc_unregister_device (net/nfc/core.c:1179)\npn53x_unregister_nfc (drivers/nfc/pn533/pn533.c:2846)\npn533_usb_disconnect (drivers/nfc/pn533/usb.c:579)\nusb_unbind_interface (drivers/usb/core/driver.c:458)\ndevice_release_driver_internal (drivers/base/dd.c:1279)\nbus_remove_device (drivers/base/bus.c:529)\ndevice_del (drivers/base/core.c:3665)\nusb_disable_device (drivers/usb/core/message.c:1420)\nusb_disconnect (drivers/usb/core.c:2261)\nhub_event (drivers/usb/core/hub.c:5833)\nprocess_one_work (arch/x86/include/asm/jump_label.h:27 include/linux/jump_label.h:212 include/trace/events/workqueue.h:108 kernel/workqueue.c:2281)\nworker_thread (include/linux/list.h:282 kernel/workqueue.c:2423)\nkthread (kernel/kthread.c:319)\nret_from_fork (arch/x86/entry/entry_64.S:301)"}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-03-27T16:43:49.142Z"}}}, "cveMetadata": {"cveId": "CVE-2023-53023", "state": "PUBLISHED", "dateUpdated": "2025-03-27T17:08:23.496Z", "dateReserved": "2025-03-27T16:40:15.753Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2025-03-27T16:43:49.142Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "10C5A938-FF24-4A9E-9F50-02013C0919F8", "versionEndExcluding": "4.14.305", "versionStartIncluding": "3.9", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "83C4B95C-BD08-4683-A26E-2A65333F2D15", "versionEndExcluding": "4.19.272", "versionStartIncluding": "4.15", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "79CA608C-BC5E-4BB5-9250-771AEC44F412", "versionEndExcluding": "5.4.231", "versionStartIncluding": "4.20", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A44D9D24-661C-40D4-8735-4CEB1C7C02F2", "versionEndExcluding": "5.10.166", "versionStartIncluding": "5.5", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "91C2E92D-CC25-4FBD-8824-56A148119D7E", "versionEndExcluding": "5.15.91", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "ED5B6045-B1D2-4E03-B194-9005A351BCAE", "versionEndExcluding": "6.1.9", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*", "matchCriteriaId": "FF501633-2F44-4913-A8EE-B021929F49F6", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*", "matchCriteriaId": "2BDA597B-CAC1-4DF0-86F0-42E142C654E9", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:*", "matchCriteriaId": "725C78C9-12CE-406F-ABE8-0813A01D66E8", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.2:rc4:*:*:*:*:*:*", "matchCriteriaId": "A127C155-689C-4F67-B146-44A57F4BFD85", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: nfc: Fix use-after-free in local_cleanup()\n\nFix a use-after-free that occurs in kfree_skb() called from\nlocal_cleanup(). This could happen when killing nfc daemon (e.g. neard)\nafter detaching an nfc device.\nWhen detaching an nfc device, local_cleanup() called from\nnfc_llcp_unregister_device() frees local->rx_pending and decreases\nlocal->ref by kref_put() in nfc_llcp_local_put().\nIn the terminating process, nfc daemon releases all sockets and it leads\nto decreasing local->ref. After the last release of local->ref,\nlocal_cleanup() called from local_release() frees local->rx_pending\nagain, which leads to the bug.\n\nSetting local->rx_pending to NULL in local_cleanup() could prevent\nuse-after-free when local_cleanup() is called twice.\n\nFound by a modified version of syzkaller.\n\nBUG: KASAN: use-after-free in kfree_skb()\n\nCall Trace:\ndump_stack_lvl (lib/dump_stack.c:106)\nprint_address_description.constprop.0.cold (mm/kasan/report.c:306)\nkasan_check_range (mm/kasan/generic.c:189)\nkfree_skb (net/core/skbuff.c:955)\nlocal_cleanup (net/nfc/llcp_core.c:159)\nnfc_llcp_local_put.part.0 (net/nfc/llcp_core.c:172)\nnfc_llcp_local_put (net/nfc/llcp_core.c:181)\nllcp_sock_destruct (net/nfc/llcp_sock.c:959)\n__sk_destruct (net/core/sock.c:2133)\nsk_destruct (net/core/sock.c:2181)\n__sk_free (net/core/sock.c:2192)\nsk_free (net/core/sock.c:2203)\nllcp_sock_release (net/nfc/llcp_sock.c:646)\n__sock_release (net/socket.c:650)\nsock_close (net/socket.c:1365)\n__fput (fs/file_table.c:306)\ntask_work_run (kernel/task_work.c:179)\nptrace_notify (kernel/signal.c:2354)\nsyscall_exit_to_user_mode_prepare (kernel/entry/common.c:278)\nsyscall_exit_to_user_mode (kernel/entry/common.c:296)\ndo_syscall_64 (arch/x86/entry/common.c:86)\nentry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:106)\n\nAllocated by task 4719:\nkasan_save_stack (mm/kasan/common.c:45)\n__kasan_slab_alloc (mm/kasan/common.c:325)\nslab_post_alloc_hook (mm/slab.h:766)\nkmem_cache_alloc_node (mm/slub.c:3497)\n__alloc_skb (net/core/skbuff.c:552)\npn533_recv_response (drivers/nfc/pn533/usb.c:65)\n__usb_hcd_giveback_urb (drivers/usb/core/hcd.c:1671)\nusb_giveback_urb_bh (drivers/usb/core/hcd.c:1704)\ntasklet_action_common.isra.0 (kernel/softirq.c:797)\n__do_softirq (kernel/softirq.c:571)\n\nFreed by task 1901:\nkasan_save_stack (mm/kasan/common.c:45)\nkasan_set_track (mm/kasan/common.c:52)\nkasan_save_free_info (mm/kasan/genericdd.c:518)\n__kasan_slab_free (mm/kasan/common.c:236)\nkmem_cache_free (mm/slub.c:3809)\nkfree_skbmem (net/core/skbuff.c:874)\nkfree_skb (net/core/skbuff.c:931)\nlocal_cleanup (net/nfc/llcp_core.c:159)\nnfc_llcp_unregister_device (net/nfc/llcp_core.c:1617)\nnfc_unregister_device (net/nfc/core.c:1179)\npn53x_unregister_nfc (drivers/nfc/pn533/pn533.c:2846)\npn533_usb_disconnect (drivers/nfc/pn533/usb.c:579)\nusb_unbind_interface (drivers/usb/core/driver.c:458)\ndevice_release_driver_internal (drivers/base/dd.c:1279)\nbus_remove_device (drivers/base/bus.c:529)\ndevice_del (drivers/base/core.c:3665)\nusb_disable_device (drivers/usb/core/message.c:1420)\nusb_disconnect (drivers/usb/core.c:2261)\nhub_event (drivers/usb/core/hub.c:5833)\nprocess_one_work (arch/x86/include/asm/jump_label.h:27 include/linux/jump_label.h:212 include/trace/events/workqueue.h:108 kernel/workqueue.c:2281)\nworker_thread (include/linux/list.h:282 kernel/workqueue.c:2423)\nkthread (kernel/kthread.c:319)\nret_from_fork (arch/x86/entry/entry_64.S:301)"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: nfc: Se corrige use-after-free en local_cleanup() Corrige un use-after-free que ocurre en kfree_skb() llamado desde local_cleanup(). Esto podr\u00eda suceder al matar el demonio nfc (p. ej., neard) despu\u00e9s de desconectar un dispositivo nfc. Al desconectar un dispositivo nfc, local_cleanup() llamado desde nfc_llcp_unregister_device() libera local->rx_pending y disminuye local->ref por kref_put() en nfc_llcp_local_put(). En el proceso de terminaci\u00f3n, el demonio nfc libera todos los sockets y esto lleva a la disminuci\u00f3n de local->ref. Despu\u00e9s de la \u00faltima liberaci\u00f3n de local->ref, local_cleanup() llamado desde local_release() libera local->rx_pending de nuevo, lo que conduce al error. Establecer local->rx_pending como NULL en local_cleanup() podr\u00eda impedir el use-after-free al llamar a local_cleanup() dos veces. Encontrado por una versi\u00f3n modificada de syzkaller. ERROR: KASAN: use-after-free en el seguimiento de llamadas kfree_skb(): dump_stack_lvl (lib/dump_stack.c:106) print_address_description.constprop.0.cold (mm/kasan/report.c:306) kasan_check_range (mm/kasan/generic.c:189) kfree_skb (net/core/skbuff.c:955) local_cleanup (net/nfc/llcp_core.c:159) nfc_llcp_local_put.part.0 (net/nfc/llcp_core.c:172) nfc_llcp_local_put (net/nfc/llcp_core.c:181) llcp_sock_destruct (net/nfc/llcp_sock.c:959) __sk_destruct (net/core/sock.c:2133) sk_destruct (net/core/sock.c:2181) __sk_free (net/core/sock.c:2192) sk_free (net/core/sock.c:2203) llcp_sock_release (net/nfc/llcp_sock.c:646) __sock_release (net/socket.c:650) sock_close (net/socket.c:1365) __fput (fs/file_table.c:306) task_work_run (kernel/task_work.c:179) ptrace_notify (kernel/signal.c:2354) syscall_exit_to_user_mode_prepare (kernel/entry/common.c:278) syscall_exit_to_user_mode (kernel/entry/common.c:296) do_syscall_64 (arch/x86/entry/common.c:86) entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:106) Asignado por la tarea 4719: kasan_save_stack (mm/kasan/common.c:45) __kasan_slab_alloc (mm/kasan/common.c:325) slab_post_alloc_hook (mm/slab.h:766) kmem_cache_alloc_node (mm/slub.c:3497) __alloc_skb (net/core/skbuff.c:552) pn533_recv_response (drivers/nfc/pn533/usb.c:65) __usb_hcd_giveback_urb (controladores/usb/core/hcd.c:1671) usb_giveback_urb_bh (controladores/usb/core/hcd.c:1704) tasklet_action_common.isra.0 (kernel/softirq.c:797) __do_softirq (kernel/softirq.c:571) Liberado por la tarea 1901: kasan_save_stack (mm/kasan/common.c:45) kasan_set_track (mm/kasan/common.c:52) kasan_save_free_info (mm/kasan/genericdd.c:518) __kasan_slab_free (mm/kasan/common.c:236) kmem_cache_free (mm/slub.c:3809) kfree_skbmem (net/core/skbuff.c:874) kfree_skb (net/core/skbuff.c:931) limpieza local (net/nfc/llcp_core.c:159) nfc_llcp_unregister_device (net/nfc/llcp_core.c:1617) nfc_unregister_device (net/nfc/core.c:1179) pn53x_unregister_nfc (drivers/nfc/pn533/pn533.c:2846) pn533_usb_disconnect (drivers/nfc/pn533/usb.c:579) usb_unbind_interface (drivers/usb/core/driver.c:458) device_release_driver_internal (drivers/base/dd.c:1279) bus_remove_device (drivers/base/bus.c:529) device_del (drivers/base/core.c:3665) usb_disable_device (drivers/usb/core/message.c:1420) usb_disconnect (drivers/usb/core.c:2261) hub_event (drivers/usb/core/hub.c:5833) process_one_work (arch/x86/include/asm/jump_label.h:27 include/linux/jump_label.h:212 include/trace/events/workqueue.h:108 kernel/workqueue.c:2281) worker_thread (include/linux/list.h:282 kernel/workqueue.c:2423) kthread (kernel/kthread.c:319) ret_from_fork (arch/x86/entry/entry_64.S:301) "}], "id": "CVE-2023-53023", "lastModified": "2025-04-01T15:39:10.740", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2025-03-27T17:15:51.847", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4bb4db7f3187c6e3de6b229ffc87cdb30a2d22b6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/54f7be61584b8ec4c6df405f479495b9397bae4a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7f129927feaf7c10b1c38bbce630172e9a08c834"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a59cdbda3714e11aa3ab579132864c4c8c6d54f9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ad1baab3a5c03692d22ce446f38596a126377f6a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b09ae26f08aaf2d85f96ea7f90ddd3387f62216f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d3605282ec3502ec8847915eb2cf1f340493ff79"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: net: nfc: Fix use-after-free in local_cleanup()", "id": "2355533", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2355533"}, "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-416", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnet: nfc: Fix use-after-free in local_cleanup()\nFix a use-after-free that occurs in kfree_skb() called from\nlocal_cleanup(). This could happen when killing nfc daemon (e.g. neard)\nafter detaching an nfc device.\nWhen detaching an nfc device, local_cleanup() called from\nnfc_llcp_unregister_device() frees local->rx_pending and decreases\nlocal->ref by kref_put() in nfc_llcp_local_put().\nIn the terminating process, nfc daemon releases all sockets and it leads\nto decreasing local->ref. After the last release of local->ref,\nlocal_cleanup() called from local_release() frees local->rx_pending\nagain, which leads to the bug.\nSetting local->rx_pending to NULL in local_cleanup() could prevent\nuse-after-free when local_cleanup() is called twice.\nFound by a modified version of syzkaller.\nBUG: KASAN: use-after-free in kfree_skb()\nCall Trace:\ndump_stack_lvl (lib/dump_stack.c:106)\nprint_address_description.constprop.0.cold (mm/kasan/report.c:306)\nkasan_check_range (mm/kasan/generic.c:189)\nkfree_skb (net/core/skbuff.c:955)\nlocal_cleanup (net/nfc/llcp_core.c:159)\nnfc_llcp_local_put.part.0 (net/nfc/llcp_core.c:172)\nnfc_llcp_local_put (net/nfc/llcp_core.c:181)\nllcp_sock_destruct (net/nfc/llcp_sock.c:959)\n__sk_destruct (net/core/sock.c:2133)\nsk_destruct (net/core/sock.c:2181)\n__sk_free (net/core/sock.c:2192)\nsk_free (net/core/sock.c:2203)\nllcp_sock_release (net/nfc/llcp_sock.c:646)\n__sock_release (net/socket.c:650)\nsock_close (net/socket.c:1365)\n__fput (fs/file_table.c:306)\ntask_work_run (kernel/task_work.c:179)\nptrace_notify (kernel/signal.c:2354)\nsyscall_exit_to_user_mode_prepare (kernel/entry/common.c:278)\nsyscall_exit_to_user_mode (kernel/entry/common.c:296)\ndo_syscall_64 (arch/x86/entry/common.c:86)\nentry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:106)\nAllocated by task 4719:\nkasan_save_stack (mm/kasan/common.c:45)\n__kasan_slab_alloc (mm/kasan/common.c:325)\nslab_post_alloc_hook (mm/slab.h:766)\nkmem_cache_alloc_node (mm/slub.c:3497)\n__alloc_skb (net/core/skbuff.c:552)\npn533_recv_response (drivers/nfc/pn533/usb.c:65)\n__usb_hcd_giveback_urb (drivers/usb/core/hcd.c:1671)\nusb_giveback_urb_bh (drivers/usb/core/hcd.c:1704)\ntasklet_action_common.isra.0 (kernel/softirq.c:797)\n__do_softirq (kernel/softirq.c:571)\nFreed by task 1901:\nkasan_save_stack (mm/kasan/common.c:45)\nkasan_set_track (mm/kasan/common.c:52)\nkasan_save_free_info (mm/kasan/genericdd.c:518)\n__kasan_slab_free (mm/kasan/common.c:236)\nkmem_cache_free (mm/slub.c:3809)\nkfree_skbmem (net/core/skbuff.c:874)\nkfree_skb (net/core/skbuff.c:931)\nlocal_cleanup (net/nfc/llcp_core.c:159)\nnfc_llcp_unregister_device (net/nfc/llcp_core.c:1617)\nnfc_unregister_device (net/nfc/core.c:1179)\npn53x_unregister_nfc (drivers/nfc/pn533/pn533.c:2846)\npn533_usb_disconnect (drivers/nfc/pn533/usb.c:579)\nusb_unbind_interface (drivers/usb/core/driver.c:458)\ndevice_release_driver_internal (drivers/base/dd.c:1279)\nbus_remove_device (drivers/base/bus.c:529)\ndevice_del (drivers/base/core.c:3665)\nusb_disable_device (drivers/usb/core/message.c:1420)\nusb_disconnect (drivers/usb/core.c:2261)\nhub_event (drivers/usb/core/hub.c:5833)\nprocess_one_work (arch/x86/include/asm/jump_label.h:27 include/linux/jump_label.h:212 include/trace/events/workqueue.h:108 kernel/workqueue.c:2281)\nworker_thread (include/linux/list.h:282 kernel/workqueue.c:2423)\nkthread (kernel/kthread.c:319)\nret_from_fork (arch/x86/entry/entry_64.S:301)"], "name": "CVE-2023-53023", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "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": "2025-03-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-53023\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-53023\nhttps://lore.kernel.org/linux-cve-announce/2025032718-CVE-2023-53023-ef4e@gregkh/T"], "threat_severity": "Moderate"}