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412b65d15a
hns_get_sset_count() returns HNS_NET_STATS_CNT and the data space allocated is not enough for ethtool_get_strings(), which will cause random memory corruption. When SLAB and DEBUG_SLAB are both enabled, memory corruptions like the the following can be observed without this patch: [ 43.115200] Slab corruption (Not tainted): Acpi-ParseExt start=ffff801fb0b69030, len=80 [ 43.115206] Redzone: 0x9f911029d006462/0x5f78745f31657070. [ 43.115208] Last user: [<5f7272655f746b70>](0x5f7272655f746b70) [ 43.115214] 010: 70 70 65 31 5f 74 78 5f 70 6b 74 00 6b 6b 6b 6b ppe1_tx_pkt.kkkk [ 43.115217] 030: 70 70 65 31 5f 74 78 5f 70 6b 74 5f 6f 6b 00 6b ppe1_tx_pkt_ok.k [ 43.115218] Next obj: start=ffff801fb0b69098, len=80 [ 43.115220] Redzone: 0x706d655f6f666966/0x9f911029d74e35b. [ 43.115229] Last user: [<ffff0000084b11b0>](acpi_os_release_object+0x28/0x38) [ 43.115231] 000: 74 79 00 6b 6b 6b 6b 6b 70 70 65 31 5f 74 78 5f ty.kkkkkppe1_tx_ [ 43.115232] 010: 70 6b 74 5f 65 72 72 5f 63 73 75 6d 5f 66 61 69 pkt_err_csum_fai Signed-off-by: Timmy Li <lixiaoping3@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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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.