{"id":"CVE-2026-89853","published":"2026-09-16T11:16:53.040","lastModified":"2026-09-16T11:16:53.040","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Fix FCE trace use-after-free during firmware dump\n\nqla2x00_free_fce_trace() freed and cleared ha->fce while holding only\nfce_mutex. The firmware-dump consumers qla27xx_fwdt_entry_t264() and\nqla25xx_copy_fce() read ha->fce (NULL check followed by a copy of the\nbuffer) under hardware_lock and never take fce_mutex. A debugfs FCE\ndisable could therefore free the DMA buffer between a dump's NULL check\nand its copy, resulting in a use-after-free.\n\nUnpublish ha->fce under hardware_lock, then release the lock and free\nthe DMA buffer (dma_free_coherent() may sleep). A concurrent dump either\ncompletes its check and copy with the buffer still valid, or observes\nha->fce == NULL and skips it.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/41ef7edde27ac87d55ffc703da44e78aa8c2e896","tags":[]},{"url":"https://git.kernel.org/stable/c/423487f03e325b8665d20a2a3171fe012b1a4fa9","tags":[]},{"url":"https://git.kernel.org/stable/c/53298efcbbb0f0438366d45cb7ed7e6d93dd5531","tags":[]},{"url":"https://git.kernel.org/stable/c/6003e79148eca73d7cafb076f5be47e234d543d0","tags":[]},{"url":"https://git.kernel.org/stable/c/7bd308cd893e8cce023d03a40a2f0adccaff0175","tags":[]},{"url":"https://git.kernel.org/stable/c/8e7a26931b6111583cfeaf49c068f26524dc3af2","tags":[]},{"url":"https://git.kernel.org/stable/c/edc464a4fc96e2720d166e7cc7e7a6827b086760","tags":[]},{"url":"https://git.kernel.org/stable/c/ef9b89f6c92274c3670403fd06130ca25f685050","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}