[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-DEBIAN-CVE-2024-26906":6},{"stargazers_count":4,"fetched_at":5},7,"2026-06-04T14:53:31.930Z",{"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-2024-26906","In the Linux kernel, the following vulnerability has been resolved:  x86/mm: Disallow vsyscall page read for copy_from_kernel_nofault()  When trying to use copy_from_kernel_nofault() to read vsyscall page through a bpf program, the following oops was reported:    BUG: unable to handle page fault for address: ffffffffff600000   #PF: supervisor read access in kernel mode   #PF: error_code(0x0000) - not-present page   PGD 3231067 P4D 3231067 PUD 3233067 PMD 3235067 PTE 0   Oops: 0000 [#1] PREEMPT SMP PTI   CPU: 1 PID: 20390 Comm: test_progs ...... 6.7.0+ #58   Hardware name: QEMU Standard PC (i440FX + PIIX, 1996) ......   RIP: 0010:copy_from_kernel_nofault+0x6f/0x110   ......   Call Trace:    \u003CTASK>    ? copy_from_kernel_nofault+0x6f/0x110    bpf_probe_read_kernel+0x1d/0x50    bpf_prog_2061065e56845f08_do_probe_read+0x51/0x8d    trace_call_bpf+0xc5/0x1c0    perf_call_bpf_enter.isra.0+0x69/0xb0    perf_syscall_enter+0x13e/0x200    syscall_trace_enter+0x188/0x1c0    do_syscall_64+0xb5/0xe0    entry_SYSCALL_64_after_hwframe+0x6e/0x76    \u003C/TASK>   ......   ---[ end trace 0000000000000000 ]---  The oops is triggered when:  1) A bpf program uses bpf_probe_read_kernel() to read from the vsyscall page and invokes copy_from_kernel_nofault() which in turn calls __get_user_asm().  2) Because the vsyscall page address is not readable from kernel space, a page fault exception is triggered accordingly.  3) handle_page_fault() considers the vsyscall page address as a user space address instead of a kernel space address. This results in the fix-up setup by bpf not being applied and a page_fault_oops() is invoked due to SMAP.  Considering handle_page_fault() has already considered the vsyscall page address as a userspace address, fix the problem by disallowing vsyscall page read for copy_from_kernel_nofault().",null,[],[],[],[14],{"_key":15},"CVE-2024-26906",[17,19],{"_key":18},"DLA-3842-1",{"_key":20},"DSA-5681-1",[],[],"2024-04-17T11:15:11.207Z","2026-04-28T20:27:44.164095Z",{"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-2024-26906",[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},5.5,"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",6,4.6,[44],{"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",[50,56,59,62],{"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},"lt5_10_216_1",true,"ecosystem","5.10.216-1","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_1_85_1","6.1.85-1",{"version":60,"is_range":52,"range_type":53,"version_start":9,"version_start_type":9,"version_end":61,"version_end_type":55,"fixed_in":9},"lt6_7_12_1","6.7.12-1",{"version":60,"is_range":52,"range_type":53,"version_start":9,"version_start_type":9,"version_end":61,"version_end_type":55,"fixed_in":9}]