Just booting up the latest git master (b00d209) on an aarch64 server and saw this. [ 42.448373] BUG: KASAN: slab-out-of-bounds in cts_cbc_encrypt+0xec/0x3c0 [ 42.455157] Write of size 8 at addr ffff801dd06aaa40 by task cryptomgr_test/409 [ 42.464065] CPU: 3 PID: 409 Comm: cryptomgr_test Tainted: G W T 4.20.0-rc1+ #6 [ 42.472517] Hardware name: Huawei TaiShan 2280 /BC11SPCD, BIOS 1.50 06/01/2018 [ 42.479826] Call trace: [ 42.482306] dump_backtrace+0x0/0x248 [ 42.486014] show_stack+0x24/0x30 [ 42.489372] dump_stack+0xb8/0xf4 [ 42.492730] print_address_description+0x68/0x2b8 [ 42.497492] kasan_report+0x22c/0x340 [ 42.501199] __asan_store8+0x90/0xa0 [ 42.504818] cts_cbc_encrypt+0xec/0x3c0 [ 42.508703] simd_skcipher_encrypt+0xc4/0x198 [ 42.513115] __test_skcipher+0x6d4/0x1030 [ 42.517173] test_skcipher+0x48/0xf0 [ 42.520793] alg_test_skcipher+0x78/0x110 [ 42.524852] alg_test.part.6+0x238/0x4e8 [ 42.528823] alg_test+0x60/0xa8 [ 42.532002] cryptomgr_test+0x5c/0x68 [ 42.535710] kthread+0x18c/0x1d0 [ 42.538977] ret_from_fork+0x10/0x18 [ 42.544102] Allocated by task 409: [ 42.547547] kasan_kmalloc+0xd8/0x188 [ 42.551254] __kmalloc+0x1f8/0x470 [ 42.554698] __test_skcipher+0x18c/0x1030 [ 42.558757] test_skcipher+0x48/0xf0 [ 42.562376] alg_test_skcipher+0x78/0x110 [ 42.566435] alg_test.part.6+0x238/0x4e8 [ 42.570406] alg_test+0x60/0xa8 [ 42.573586] cryptomgr_test+0x5c/0x68 [ 42.577293] kthread+0x18c/0x1d0 [ 42.580560] ret_from_fork+0x10/0x18 [ 42.585684] Freed by task 0: [ 42.588597] (stack is not available) [ 42.593722] The buggy address belongs to the object at ffff801dd06aa880 which belongs to the cache kmalloc-512 of size 512 [ 42.606397] The buggy address is located 448 bytes inside of 512-byte region [ffff801dd06aa880, ffff801dd06aaa80) [ 42.618277] The buggy address belongs to the page: [ 42.623127] page:ffff7fe007741a80 count:1 mapcount:0 mapping:ffff801dc0010880 index:0xffff801dd06a5880 [ 42.632548] flags: 0x1fffff0000000200(slab) [ 42.636785] raw: 1fffff0000000200 ffff801dc000fac0 ffff801dc000fac0 ffff801dc0010880 [ 42.644625] raw: ffff801dd06a5880 000000000040002c 00000001ffffffff 0000000000000000 [ 42.652461] page dumped because: kasan: bad access detected [ 42.659606] Memory state around the buggy address: [ 42.664455] ffff801dd06aa900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 42.671765] ffff801dd06aa980: 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 42.679075] >ffff801dd06aaa00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 42.686383] ^ [ 42.691759] ffff801dd06aaa80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 42.699069] ffff801dd06aab00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 42.706377] ================================================================== Any idea?
