CVE-2026-43163

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> md/bitmap: fix GPF in write_page caused by resize race<br /> <br /> A General Protection Fault occurs in write_page() during array resize:<br /> RIP: 0010:write_page+0x22b/0x3c0 [md_mod]<br /> <br /> This is a use-after-free race between bitmap_daemon_work() and<br /> __bitmap_resize(). The daemon iterates over `bitmap-&gt;storage.filemap`<br /> without locking, while the resize path frees that storage via<br /> md_bitmap_file_unmap(). `quiesce()` does not stop the md thread,<br /> allowing concurrent access to freed pages.<br /> <br /> Fix by holding `mddev-&gt;bitmap_info.mutex` during the bitmap update.