CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: RDMA/umem: Fix double dma_buf_unpin in failure path In ib_umem_dmabuf_get_pinned_with_dma_device(), the call to ib_umem_dmabuf_map_pages() can fail. If this occurs, the dmabuf is immediately unpinned but the umem_dmabuf->pinned flag is still set. Then, when ib_umem_release() is called, it calls ib_umem_dmabuf_revoke() which will call dma_buf_unpin() again. Fix this by removing the immediate unpin upon failure and just let the ib_umem_release/revoke path handle it. This also ensures the proper unmap-unpin unwind ordering if the dmabuf_map_pages call happened to fail due to dma_resv_wait_timeout (and therefore has a non-NULL umem_dmabuf->sgt).
Засегнати продукти
- Linux Linux: 1e4df4a21c5ac722df1099eee30cad9246c889b5 преди 70542b69abff34d24b11ae0bb200cc7a766d18df; 1e4df4a21c5ac722df1099eee30cad9246c889b5 преди b324327ff6f48d8065dca67eb3b91357e72726bd; 1e4df4a21c5ac722df1099eee30cad9246c889b5 преди ba3bf0f1bf1d5d0404678485e872980532fcc2c4; 1e4df4a21c5ac722df1099eee30cad9246c889b5 преди d3e32e2f3262f1b25d77c085ace38e2cc4ad75cf; 1e4df4a21c5ac722df1099eee30cad9246c889b5 преди 40126bcbefa79ea86672e05dae608596bab38319; 1e4df4a21c5ac722df1099eee30cad9246c889b5 преди 104016eb671e19709721c1b0048dd912dc2e96be
- Linux Linux: 5.16; преди 5.16; 6.1.165 до 6.1.*; 6.6.128 до 6.6.*; 6.12.75 до 6.12.*; 6.18.16 до 6.18.*; 6.19.6 до 6.19.*; от 7.0 нататък
Вид слабост
История
- 6 май 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-43128
- https://nvd.nist.gov/vuln/detail/CVE-2026-43128
- https://git.kernel.org/stable/c/70542b69abff34d24b11ae0bb200cc7a766d18df
- https://git.kernel.org/stable/c/b324327ff6f48d8065dca67eb3b91357e72726bd
- https://git.kernel.org/stable/c/ba3bf0f1bf1d5d0404678485e872980532fcc2c4
- https://git.kernel.org/stable/c/d3e32e2f3262f1b25d77c085ace38e2cc4ad75cf
- https://git.kernel.org/stable/c/40126bcbefa79ea86672e05dae608596bab38319
- https://git.kernel.org/stable/c/104016eb671e19709721c1b0048dd912dc2e96be