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d97af30f61
If icsk_ulp_ops is unset, it dereferences a null ptr. Add a null ptr check. BUG: KASAN: null-ptr-deref in copy_to_user include/linux/uaccess.h:168 [inline] BUG: KASAN: null-ptr-deref in do_tcp_getsockopt.isra.33+0x24f/0x1e30 net/ipv4/tcp.c:3057 Read of size 4 at addr 0000000000000020 by task syz-executor1/15452 Signed-off-by: Dave Watson <davejwatson@fb.com> Reported-by: "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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| fs | ||
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| kernel | ||
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| README | ||
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.