linux kernel xarray xchg 内核里的xarray里有xa_cmpxchg,但是我想要无条件交换的xa_xchg,找了一个多小时没找到,结果发现xa_store会返回旧值,相当于无条件交换。 还是太嫩了。
逆向映射的基础结构 goto oom; page = alloc_zeroed_user_highpage_movable(vma, vmf->address); //10 分配物理页,用0初始化该页,优先从GIGHMEM分配,这个页用来放页表项 if (!page) goto oom; if (mem_cgroup_charge(page_folio(page), vma->vm_mm, GFP_KERNEL)) goto oom_free_page; cgroup_thrott...
并发查找不会看到未初始化的id。对空条目的搜索将从下一个开始,并在必要时回绕,https://docs.kernel.org/core-api/xarray.html#c.xa_alloc_cycliccm_id_priv->id.local_id=(__force__be32)
mcgrof@kernel.org> M: Kees Cook <keescook@chromium.org> M: Iurii Zaikin <y...
本实验室使用syzkaller对linux-5.19-rc2版本的io_uring模块进行fuzz时, 在io_register_pbuf_ring()函数中发现了了一枚由于错误的异常处理导致的UAF漏洞, 通过slab跳跃与kernel unlink attack等技巧, 本文较为简单的堆环境下成功实现了提权. 但是目前该漏洞已经在5.19-rc8中被修复, 因此决定将该0day漏洞发现的过程与漏...
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xarray.h> #include <linux/file.h> struct module; struct request_queue; struct elevator_queue; struct blk_trace; struct request; struct sg_io_hdr; struct blkcg_gq; struct blk_flush_queue; struct kiocb; struct pr_ops; struct rq_qos; struct blk_queue_stats; struct blk_stat_callback; ...
kernel Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net lib Merge tag 'xarray-4.20-rc4' of git://git.infradead.org/users/willy/li… mm mm/memblock.c: fix a typo in __next_mem_pfn_range() comments net Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf ...
Elixir Cross Referencer - source file of Linux (version v6.11.3). Browsed file: /drivers/dma-buf/dma-heap.c
Elixir Cross Referencer - Explore source code in your browser - Particularly useful for the Linux kernel and other low-level projects in C/C++ (bootloaders, C libraries...)