CVE-2026-74354

CVE CVE-2026-74354EUVD EUVD-2026-59501Published 2026-08-15T05:58:40.000ZLast changed 2026-08-17T05:46:14.000ZCVSS 7.8

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: bpf: Take mmap_lock in zap_pages() zap_vma_range() requires the owning mm's mmap_lock to be held. Taking mmap_read_lock under arena->lock would AB-BA against arena_vm_close() and arena_map_mmap(), both of which run with mmap_write_lock held and then acquire arena->lock. Instead drop arena->lock, mmget_not_zero() the vma's mm, take mmap_read_lock, and re-resolve the vma via find_vma() since it may have been unmapped or replaced while waiting. Track processed vmls with a per-call generation in vml->zap_gen and serialize zap_pages() callers with a new arena->zap_mutex so concurrent callers on different uaddr ranges do not mark each other's vmls processed before the zap is done.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

• Linux — Linux 317460317a02a1af512697e6e964298dedd8a163 <36b1d997866f6083d33934983aa2ce0a184ed642; patch: 0; 317460317a02a1af512697e6e964298dedd8a163 <80b89d0226a05e8b67969de99c31b51fcd54f76a; patch: 7.2; 6.9; patch: 7.1.5

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

• Linux — Linux

Patchlage reports hits and suspected hits. About everything else this system says nothing — neither this page nor the situation report ever claims that an estate is safe.