{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2025-38020 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-38020 is a medium-severity vulnerability in Debian Debian Linux, published on 18 Jun 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-2025-38020 and fix it if it is affected.\n\nWhat it is: CVE-2025-38020 is a medium-severity vulnerability in Debian Debian Linux, published on 18 Jun 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-2025-38020 in the wild and no public exploit code.\n\nAffected product: Debian Debian Linux. 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-2025-38020/ (Markdown: https://insights.sbomify.com/CVE-2025-38020/index.md)","id":"CVE-2025-38020","markdown":"https://insights.sbomify.com/CVE-2025-38020/index.md","name":"CVE-2025-38020","record":{"aliases":["BELL-CVE-2025-38020","DEBIAN-CVE-2025-38020","GHSA-gvv6-qc64-74pq","ROOT-OS-DEBIAN-12-CVE-2025-38020","ROOT-OS-UBUNTU-2204-CVE-2025-38020","ROOT-OS-UBUNTU-2404-CVE-2025-38020","UBUNTU-CVE-2025-38020"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A null pointer dereference in the Linux kernel mlx5e driver causes a system crash when MACsec offload is enabled on uplink representors.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"debian_linux","vendor":"debian"},{"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\nnet/mlx5e: Disable MACsec offload for uplink representor profile\n\nMACsec offload is not supported in switchdev mode for uplink\nrepresentors. When switching to the uplink representor profile, the\nMACsec offload feature must be cleared from the netdevice's features.\n\nIf left enabled, attempts to add offloads result in a null pointer\ndereference, as the uplink representor does not support MACsec offload\neven though the feature bit remains set.\n\nClear NETIF_F_HW_MACSEC in mlx5e_fix_uplink_rep_features().\n\nKernel log:\n\nOops: general protection fault, probably for non-canonical address 0xdffffc000000000f: 0000 [#1] SMP KASAN\nKASAN: null-ptr-deref in range [0x0000000000000078-0x000000000000007f]\nCPU: 29 UID: 0 PID: 4714 Comm: ip Not tainted 6.14.0-rc4_for_upstream_debug_2025_03_02_17_35 #1\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\nRIP: 0010:__mutex_lock+0x128/0x1dd0\nCode: d0 7c 08 84 d2 0f 85 ad 15 00 00 8b 35 91 5c fe 03 85 f6 75 29 49 8d 7e 60 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 \u003c80\u003e 3c 02 00 0f 85 a6 15 00 00 4d 3b 76 60 0f 85 fd 0b 00 00 65 ff\nRSP: 0018:ffff888147a4f160 EFLAGS: 00010206\nRAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000001\nRDX: 000000000000000f RSI: 0000000000000000 RDI: 0000000000000078\nRBP: ffff888147a4f2e0 R08: ffffffffa05d2c19 R09: 0000000000000000\nR10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000\nR13: dffffc0000000000 R14: 0000000000000018 R15: ffff888152de0000\nFS:  00007f855e27d800(0000) GS:ffff88881ee80000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00000000004e5768 CR3: 000000013ae7c005 CR4: 0000000000372eb0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400\nCall Trace:\n \u003cTASK\u003e\n ? die_addr+0x3d/0xa0\n ? exc_general_protection+0x144/0x220\n ? asm_exc_general_protection+0x22/0x30\n ? mlx5e_macsec_add_secy+0xf9/0x700 [mlx5_core]\n ? __mutex_lock+0x128/0x1dd0\n ? lockdep_set_lock_cmp_fn+0x190/0x190\n ? mlx5e_macsec_add_secy+0xf9/0x700 [mlx5_core]\n ? mutex_lock_io_nested+0x1ae0/0x1ae0\n ? lock_acquire+0x1c2/0x530\n ? macsec_upd_offload+0x145/0x380\n ? lockdep_hardirqs_on_prepare+0x400/0x400\n ? kasan_save_stack+0x30/0x40\n ? kasan_save_stack+0x20/0x40\n ? kasan_save_track+0x10/0x30\n ? __kasan_kmalloc+0x77/0x90\n ? __kmalloc_noprof+0x249/0x6b0\n ? genl_family_rcv_msg_attrs_parse.constprop.0+0xb5/0x240\n ? mlx5e_macsec_add_secy+0xf9/0x700 [mlx5_core]\n mlx5e_macsec_add_secy+0xf9/0x700 [mlx5_core]\n ? mlx5e_macsec_add_rxsa+0x11a0/0x11a0 [mlx5_core]\n macsec_update_offload+0x26c/0x820\n ? macsec_set_mac_address+0x4b0/0x4b0\n ? lockdep_hardirqs_on_prepare+0x284/0x400\n ? _raw_spin_unlock_irqrestore+0x47/0x50\n macsec_upd_offload+0x2c8/0x380\n ? macsec_update_offload+0x820/0x820\n ? __nla_parse+0x22/0x30\n ? genl_family_rcv_msg_attrs_parse.constprop.0+0x15e/0x240\n genl_family_rcv_msg_doit+0x1cc/0x2a0\n ? genl_family_rcv_msg_attrs_parse.constprop.0+0x240/0x240\n ? cap_capable+0xd4/0x330\n genl_rcv_msg+0x3ea/0x670\n ? genl_family_rcv_msg_dumpit+0x2a0/0x2a0\n ? lockdep_set_lock_cmp_fn+0x190/0x190\n ? macsec_update_offload+0x820/0x820\n netlink_rcv_skb+0x12b/0x390\n ? genl_family_rcv_msg_dumpit+0x2a0/0x2a0\n ? netlink_ack+0xd80/0xd80\n ? rwsem_down_read_slowpath+0xf90/0xf90\n ? netlink_deliver_tap+0xcd/0xac0\n ? netlink_deliver_tap+0x155/0xac0\n ? _copy_from_iter+0x1bb/0x12c0\n genl_rcv+0x24/0x40\n netlink_unicast+0x440/0x700\n ? netlink_attachskb+0x760/0x760\n ? lock_acquire+0x1c2/0x530\n ? __might_fault+0xbb/0x170\n netlink_sendmsg+0x749/0xc10\n ? netlink_unicast+0x700/0x700\n ? __might_fault+0xbb/0x170\n ? netlink_unicast+0x700/0x700\n __sock_sendmsg+0xc5/0x190\n ____sys_sendmsg+0x53f/0x760\n ? import_iovec+0x7/0x10\n ? kernel_sendmsg+0x30/0x30\n ? __copy_msghdr+0x3c0/0x3c0\n ? filter_irq_stacks+0x90/0x90\n ? stack_depot_save_flags+0x28/0xa30\n ___sys_sen\n---truncated---","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":"net/mlx5e: Disable MACsec offload for uplink representor profile","id":"CVE-2025-38020","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"debian:debian_linux","products":["debian:debian_linux","linux:linux_kernel"],"type":"null_dereference","year":"2025"},"n_packages":0,"n_references":5,"next":{"headline":"drm/amd/display: Fix null check of pipe_ctx-\u003eplane_state for update_dchubp_dpp","id":"CVE-2025-38021"},"packages":[],"prev":{"headline":"mlxsw: spectrum_router: Fix use-after-free when deleting GRE net devices","id":"CVE-2025-38019"},"products":["Linux"],"published":"2025-06-18","related":[{"cvss_score":10,"headline":"ProFTPD Improper Access Control","id":"CVE-2015-3306","kev_date_added":"2026-10-08","published":"2015-05-18"},{"cvss_score":9.9,"headline":"RoundCube Webmail Deserialization of Untrusted Data","id":"CVE-2025-49113","kev_date_added":"2026-02-20","published":"2025-06-02"},{"cvss_score":9.8,"headline":"GNU InetUtils Argument Injection","id":"CVE-2026-24061","kev_date_added":"2026-01-26","published":"2026-01-21"},{"cvss_score":9.8,"headline":"Linux Kernel Improper Check for Unusual or Exceptional Conditions","id":"CVE-2025-39682","kev_date_added":"2026-09-18","published":"2025-09-05"},{"cvss_score":9.8,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2024-9680","kev_date_added":"2024-10-15","published":"2024-10-09"},{"cvss_score":9.8,"headline":"RARLAB UnRAR Directory Traversal","id":"CVE-2022-30333","kev_date_added":"2022-08-09","published":"2022-05-09"},{"cvss_score":9.8,"headline":"Roundcube Webmail SQL Injection","id":"CVE-2021-44026","kev_date_added":"2023-06-22","published":"2021-11-19"}],"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 Linux kernel mlx5e driver causes a system crash when MACsec offload is enabled on uplink representors.","url":"https://insights.sbomify.com/CVE-2025-38020/"}