{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-53595 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-53595 is a medium-severity vulnerability in Linux kernel, published on 4 Oct 2025. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-53595 and fix it if it is affected.\n\nWhat it is: CVE-2023-53595 is a medium-severity vulnerability in Linux kernel, published on 4 Oct 2025. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-53595 in the wild and no public exploit code.\n\nAffected product: Linux kernel. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2023-53595/ (Markdown: https://insights.sbomify.com/CVE-2023-53595/index.md)","id":"CVE-2023-53595","markdown":"https://insights.sbomify.com/CVE-2023-53595/index.md","name":"CVE-2023-53595","record":{"aliases":["BELL-CVE-2023-53595","DEBIAN-CVE-2023-53595","GHSA-9jxv-7cgw-j3gc","UBUNTU-CVE-2023-53595"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Linux kernel driver","requires_auth":"low_privilege","summary":"A NULL pointer dereference in the OcteonTX2 MACsec driver causes a kernel crash during system reboot if a MACsec interface was previously created.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":5.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-476","name":"NULL Pointer Dereference"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-pf: mcs: Fix NULL pointer dereferences\n\nWhen system is rebooted after creating macsec interface\nbelow NULL pointer dereference crashes occurred. This\npatch fixes those crashes by using correct order of teardown\n\n[ 3324.406942] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\n[ 3324.415726] Mem abort info:\n[ 3324.418510]   ESR = 0x96000006\n[ 3324.421557]   EC = 0x25: DABT (current EL), IL = 32 bits\n[ 3324.426865]   SET = 0, FnV = 0\n[ 3324.429913]   EA = 0, S1PTW = 0\n[ 3324.433047] Data abort info:\n[ 3324.435921]   ISV = 0, ISS = 0x00000006\n[ 3324.439748]   CM = 0, WnR = 0\n....\n[ 3324.575915] Call trace:\n[ 3324.578353]  cn10k_mdo_del_secy+0x24/0x180\n[ 3324.582440]  macsec_common_dellink+0xec/0x120\n[ 3324.586788]  macsec_notify+0x17c/0x1c0\n[ 3324.590529]  raw_notifier_call_chain+0x50/0x70\n[ 3324.594965]  call_netdevice_notifiers_info+0x34/0x7c\n[ 3324.599921]  rollback_registered_many+0x354/0x5bc\n[ 3324.604616]  unregister_netdevice_queue+0x88/0x10c\n[ 3324.609399]  unregister_netdev+0x20/0x30\n[ 3324.613313]  otx2_remove+0x8c/0x310\n[ 3324.616794]  pci_device_shutdown+0x30/0x70\n[ 3324.620882]  device_shutdown+0x11c/0x204\n\n[  966.664930] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\n[  966.673712] Mem abort info:\n[  966.676497]   ESR = 0x96000006\n[  966.679543]   EC = 0x25: DABT (current EL), IL = 32 bits\n[  966.684848]   SET = 0, FnV = 0\n[  966.687895]   EA = 0, S1PTW = 0\n[  966.691028] Data abort info:\n[  966.693900]   ISV = 0, ISS = 0x00000006\n[  966.697729]   CM = 0, WnR = 0\n[  966.833467] Call trace:\n[  966.835904]  cn10k_mdo_stop+0x20/0xa0\n[  966.839557]  macsec_dev_stop+0xe8/0x11c\n[  966.843384]  __dev_close_many+0xbc/0x140\n[  966.847298]  dev_close_many+0x84/0x120\n[  966.851039]  rollback_registered_many+0x114/0x5bc\n[  966.855735]  unregister_netdevice_many.part.0+0x14/0xa0\n[  966.860952]  unregister_netdevice_many+0x18/0x24\n[  966.865560]  macsec_notify+0x1ac/0x1c0\n[  966.869303]  raw_notifier_call_chain+0x50/0x70\n[  966.873738]  call_netdevice_notifiers_info+0x34/0x7c\n[  966.878694]  rollback_registered_many+0x354/0x5bc\n[  966.883390]  unregister_netdevice_queue+0x88/0x10c\n[  966.888173]  unregister_netdev+0x20/0x30\n[  966.892090]  otx2_remove+0x8c/0x310\n[  966.895571]  pci_device_shutdown+0x30/0x70\n[  966.899660]  device_shutdown+0x11c/0x204\n[  966.903574]  __do_sys_reboot+0x208/0x290\n[  966.907487]  __arm64_sys_reboot+0x20/0x30\n[  966.911489]  el0_svc_handler+0x80/0x1c0\n[  966.915316]  el0_svc+0x8/0x180\n[  966.918362] Code: f9400000 f9400a64 91220014 f94b3403 (f9400060)\n[  966.924448] ---[ end trace 341778e799c3d8d7 ]---","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"octeontx2-pf: mcs: Fix NULL pointer dereferences","id":"CVE-2023-53595","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"null_dereference","year":"2023"},"n_packages":0,"n_references":4,"next":{"headline":"drivers: base: Free devm resources when unregistering a device","id":"CVE-2023-53596"},"packages":[],"prev":{"headline":"driver core: fix resource leak in device_add()","id":"CVE-2023-53594"},"products":["Linux"],"published":"2025-10-04","related":[{"cvss_score":8.8,"headline":"Linux Kernel Out-of-Bounds Write","id":"CVE-2026-53266","kev_date_added":"2026-09-18","published":"2026-06-25"},{"cvss_score":8.8,"headline":"Linux Kernel Improper Input Validation","id":"CVE-2013-6282","kev_date_added":"2022-09-15","published":"2013-11-19"},{"cvss_score":8.4,"headline":"Linux Kernel Heap-Based Buffer Overflow","id":"CVE-2022-0185","kev_date_added":"2024-08-21","published":"2022-02-11"},{"cvss_score":8.4,"headline":"Linux Kernel Privilege Escalation","id":"CVE-2013-2094","kev_date_added":"2022-09-15","published":"2013-05-14"},{"cvss_score":7.8,"headline":"Linux Kernel Unspecified","id":"CVE-2026-53362","kev_date_added":"2026-08-27","published":"2026-07-04"},{"cvss_score":7.8,"headline":"Linux Kernel Missing Initialization of a Variable","id":"CVE-2026-46300","kev_date_added":"2026-10-28","published":"2026-05-23"},{"cvss_score":7.8,"headline":"Linux Kernel Race Condition","id":"CVE-2025-39964","kev_date_added":"2026-09-18","published":"2025-10-13"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-05-11","vendors":["Linux"]},"summary":"A NULL pointer dereference in the OcteonTX2 MACsec driver causes a kernel crash during system reboot if a MACsec interface was previously created.","url":"https://insights.sbomify.com/CVE-2023-53595/"}