[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-DEBIAN-CVE-2025-21867":6},{"stargazers_count":4,"fetched_at":5},7,"2026-06-04T08:53:30.047Z",{"id":7,"descriptions":8,"cisa":9,"weaknesses":10,"exploits":11,"aliases":12,"duplicate_of":9,"upstream":13,"downstream":16,"duplicates":21,"related":22,"reserved_at":9,"published_at":23,"modified_at":24,"state":9,"summary":25,"references_raw":27,"kevs":34,"epss":9,"epss_history":35,"metrics":36,"affected":43},"DEBIAN-CVE-2025-21867","In the Linux kernel, the following vulnerability has been resolved:  bpf, test_run: Fix use-after-free issue in eth_skb_pkt_type()  KMSAN reported a use-after-free issue in eth_skb_pkt_type()[1]. The cause of the issue was that eth_skb_pkt_type() accessed skb's data that didn't contain an Ethernet header. This occurs when bpf_prog_test_run_xdp() passes an invalid value as the user_data argument to bpf_test_init().  Fix this by returning an error when user_data is less than ETH_HLEN in bpf_test_init(). Additionally, remove the check for \"if (user_size > size)\" as it is unnecessary.  [1] BUG: KMSAN: use-after-free in eth_skb_pkt_type include/linux/etherdevice.h:627 [inline] BUG: KMSAN: use-after-free in eth_type_trans+0x4ee/0x980 net/ethernet/eth.c:165  eth_skb_pkt_type include/linux/etherdevice.h:627 [inline]  eth_type_trans+0x4ee/0x980 net/ethernet/eth.c:165  __xdp_build_skb_from_frame+0x5a8/0xa50 net/core/xdp.c:635  xdp_recv_frames net/bpf/test_run.c:272 [inline]  xdp_test_run_batch net/bpf/test_run.c:361 [inline]  bpf_test_run_xdp_live+0x2954/0x3330 net/bpf/test_run.c:390  bpf_prog_test_run_xdp+0x148e/0x1b10 net/bpf/test_run.c:1318  bpf_prog_test_run+0x5b7/0xa30 kernel/bpf/syscall.c:4371  __sys_bpf+0x6a6/0xe20 kernel/bpf/syscall.c:5777  __do_sys_bpf kernel/bpf/syscall.c:5866 [inline]  __se_sys_bpf kernel/bpf/syscall.c:5864 [inline]  __x64_sys_bpf+0xa4/0xf0 kernel/bpf/syscall.c:5864  x64_sys_call+0x2ea0/0x3d90 arch/x86/include/generated/asm/syscalls_64.h:322  do_syscall_x64 arch/x86/entry/common.c:52 [inline]  do_syscall_64+0xd9/0x1d0 arch/x86/entry/common.c:83  entry_SYSCALL_64_after_hwframe+0x77/0x7f  Uninit was created at:  free_pages_prepare mm/page_alloc.c:1056 [inline]  free_unref_page+0x156/0x1320 mm/page_alloc.c:2657  __free_pages+0xa3/0x1b0 mm/page_alloc.c:4838  bpf_ringbuf_free kernel/bpf/ringbuf.c:226 [inline]  ringbuf_map_free+0xff/0x1e0 kernel/bpf/ringbuf.c:235  bpf_map_free kernel/bpf/syscall.c:838 [inline]  bpf_map_free_deferred+0x17c/0x310 kernel/bpf/syscall.c:862  process_one_work kernel/workqueue.c:3229 [inline]  process_scheduled_works+0xa2b/0x1b60 kernel/workqueue.c:3310  worker_thread+0xedf/0x1550 kernel/workqueue.c:3391  kthread+0x535/0x6b0 kernel/kthread.c:389  ret_from_fork+0x6e/0x90 arch/x86/kernel/process.c:147  ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244  CPU: 1 UID: 0 PID: 17276 Comm: syz.1.16450 Not tainted 6.12.0-05490-g9bb88c659673 #8 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-3.fc41 04/01/2014",null,[],[],[],[14],{"_key":15},"CVE-2025-21867",[17,19],{"_key":18},"DLA-4193-1",{"_key":20},"DSA-5900-1",[],[],"2025-03-27T14:15:47.750Z","2026-04-28T20:29:35.163125Z",{"cisa_kev":26,"cisa_ransomware":26,"cisa_vendor":9,"epss_severity":9,"epss_score":9,"severity":9,"severity_score":9,"severity_version":9,"severity_source":9,"severity_vector":9,"severity_status":9},false,[28],{"url":29,"sources":30,"tags":32},"https://security-tracker.debian.org/tracker/CVE-2025-21867",[31],"osv_debian",[33],"Advisory",[],[],[37],{"source":31,"cvss_v2_0":9,"cvss_v3_0":9,"cvss_v3_1":38,"cvss_v4_0":9},{"baseScore":39,"baseSeverity":9,"vectorString":40,"impactScore":41,"exploitabilityScore":42},7.8,"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",9.8,4.6,[44,60],{"ecosystem":45,"name":46,"vendor":47,"product":46,"cpe_part":9,"purl_type":48,"purl_namespace":47,"purl_name":46,"source":9,"versions":49},"Debian","linux","debian","deb",[50,56,59],{"version":51,"is_range":52,"range_type":53,"version_start":9,"version_start_type":9,"version_end":54,"version_end_type":55,"fixed_in":9},"lt6_1_133_1",true,"ecosystem","6.1.133-1","excluding",{"version":57,"is_range":52,"range_type":53,"version_start":9,"version_start_type":9,"version_end":58,"version_end_type":55,"fixed_in":9},"lt6_12_17_1","6.12.17-1",{"version":57,"is_range":52,"range_type":53,"version_start":9,"version_start_type":9,"version_end":58,"version_end_type":55,"fixed_in":9},{"ecosystem":45,"name":61,"vendor":47,"product":61,"cpe_part":9,"purl_type":48,"purl_namespace":47,"purl_name":61,"source":9,"versions":62},"linux-6.1",[63],{"version":64,"is_range":52,"range_type":53,"version_start":9,"version_start_type":9,"version_end":65,"version_end_type":55,"fixed_in":9},"lt6_1_137_1~deb11u1","6.1.137-1~deb11u1"]