https://db.gcve.eu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Thu, 29 Oct 2026 17:23:27 +0000 https://db.gcve.eu/vuln/cve-2026-99097 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>tee: shm: reject zero-sized allocations in tee_dyn_shm_alloc_helper()</p> <p>tee_dyn_shm_alloc_helper() derives nr_pages from a caller-supplied size and passes it to alloc_pages_exact() without checking it. For size == 0 nr_pages is 0, and alloc_pages_exact(0) calls get_order(0), which is documented as undefined and returns BITS_PER_LONG - PAGE_SHIFT. The page allocator then trips its order &gt; MAX_PAGE_ORDER warning and fails the allocation; on a panic_on_warn kernel that ends the boot.</p> <p>This can be triggered by TEE_IOC_SHM_ALLOC with struct tee_ioctl_shm_alloc_data where size is 0.</p> <p>Reject a zero page count, as register_shm_helper() already does for the register path.</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>tee: shm: reject zero-sized allocations in tee_dyn_shm_alloc_helper()</p> <p>tee_dyn_shm_alloc_helper() derives nr_pages from a caller-supplied size and passes it to alloc_pages_exact() without checking it. For size == 0 nr_pages is 0, and alloc_pages_exact(0) calls get_order(0), which is documented as undefined and returns BITS_PER_LONG - PAGE_SHIFT. The page allocator then trips its order &gt; MAX_PAGE_ORDER warning and fails the allocation; on a panic_on_warn kernel that ends the boot.</p> <p>This can be triggered by TEE_IOC_SHM_ALLOC with struct tee_ioctl_shm_alloc_data where size is 0.</p> <p>Reject a zero page count, as register_shm_helper() already does for the register path.</p> https://db.gcve.eu/vuln/cve-2026-99097