[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-DEBIAN-CVE-2026-45837":6},{"stargazers_count":4,"fetched_at":5},7,"2026-06-15T22:50:23.791Z",{"id":7,"descriptions":8,"cisa":9,"weaknesses":10,"exploits":11,"aliases":12,"duplicate_of":9,"upstream":13,"downstream":16,"duplicates":17,"related":18,"reserved_at":9,"published_at":19,"modified_at":20,"state":9,"summary":21,"references_raw":23,"kevs":30,"epss":9,"epss_history":31,"metrics":32,"affected":33},"DEBIAN-CVE-2026-45837","In the Linux kernel, the following vulnerability has been resolved:  bpf: Fix use-after-free in arena_vm_close on fork  arena_vm_open() only bumps vml->mmap_count but never registers the child VMA in arena->vma_list. The vml->vma always points at the parent VMA, so after parent munmap the pointer dangles. If the child then calls bpf_arena_free_pages(), zap_pages() reads the stale vml->vma triggering use-after-free.  Fix this by preventing the arena VMA from being inherited across fork with VM_DONTCOPY, and preventing VMA splits via the may_split callback.  Also reject mremap with a .mremap callback returning -EINVAL. A same-size mremap(MREMAP_FIXED) on the full arena VMA reaches copy_vma() through the following path:    check_prep_vma()       - returns 0 early: new_len == old_len                            skips VM_DONTEXPAND check   prep_move_vma()        - vm_start == old_addr and                            vm_end == old_addr + old_len                            so may_split is never called   move_vma()     copy_vma_and_data()       copy_vma()         vm_area_dup()    - copies vm_private_data (vml pointer)         vm_ops->open()   - bumps vml->mmap_count       vm_ops->mremap()   - returns -EINVAL, rollback unmaps new VMA  The refcount ensures the rollback's arena_vm_close does not free the vml shared with the original VMA.",null,[],[],[],[14],{"_key":15},"CVE-2026-45837",[],[],[],"2026-05-27T11:16:23.020Z","2026-06-15T08:47:40.490708263Z",{"cisa_kev":22,"cisa_ransomware":22,"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,[24],{"url":25,"sources":26,"tags":28},"https://security-tracker.debian.org/tracker/CVE-2026-45837",[27],"osv_debian",[29],"Advisory",[],[],[],[34],{"ecosystem":35,"name":36,"vendor":37,"product":36,"cpe_part":9,"purl_type":38,"purl_namespace":37,"purl_name":36,"source":9,"versions":39},"Debian","linux","debian","deb",[40,46],{"version":41,"is_range":42,"range_type":43,"version_start":9,"version_start_type":9,"version_end":44,"version_end_type":45,"fixed_in":9},"lt6_12_88_1",true,"ecosystem","6.12.88-1","excluding",{"version":47,"is_range":42,"range_type":43,"version_start":9,"version_start_type":9,"version_end":48,"version_end_type":45,"fixed_in":9},"lt7_0_7_1","7.0.7-1"]