alg: No test for lrw(anubis) (lrw(ecb(anubis-generic))) Not allocated shadow for addr ffff88019c00f000 (page ffffea0009a805a0) Attempted to access 4096 bytes ------------[ cut here ]------------ kernel BUG at mm/kmsan/kmsan.c:1326! invalid opcode: 0000 [#1] SMP PTI Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 0 PID: 4512 Comm: syz-executor367 Not tainted 4.16.0+ #87 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kmsan_get_shadow_address+0x1ce/0x1f0 mm/kmsan/kmsan.c:1325 RSP: 0018:ffff88019eb1f4c0 EFLAGS: 00010082 RAX: 000000000000001e RBX: 0000000000000660 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000000 RBP: ffff88019eb1f4d8 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88019c00f000 R13: 0000000000001000 R14: 0000000000000001 R15: 0000000000001000 FS: 0000000000bfd880(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020b9c000 CR3: 00000001c937a000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kmsan_internal_memset_shadow mm/kmsan/kmsan.c:171 [inline] kmsan_internal_unpoison_shadow+0x5c/0xe0 mm/kmsan/kmsan.c:208 kmsan_unpoison_shadow+0x66/0xb0 mm/kmsan/kmsan.c:222 get_user_pages_fast+0x47b/0x760 mm/gup.c:1823 iov_iter_get_pages+0x465/0x1810 lib/iov_iter.c:1074 af_alg_make_sg+0xdf/0x6d0 crypto/af_alg.c:404 af_alg_get_rsgl+0x746/0xe10 crypto/af_alg.c:1158 _skcipher_recvmsg crypto/algif_skcipher.c:81 [inline] skcipher_recvmsg+0x546/0x1940 crypto/algif_skcipher.c:164 skcipher_recvmsg_nokey+0x129/0x160 crypto/algif_skcipher.c:282 sock_recvmsg_nosec net/socket.c:803 [inline] sock_recvmsg+0x1d0/0x230 net/socket.c:810 ___sys_recvmsg+0x3fb/0x810 net/socket.c:2205 __sys_recvmsg net/socket.c:2250 [inline] SYSC_recvmsg+0x298/0x3c0 net/socket.c:2262 SyS_recvmsg+0x54/0x80 net/socket.c:2257 do_syscall_64+0x309/0x430 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x3d/0xa2 RIP: 0033:0x4414a9 RSP: 002b:00007ffcd07b56b8 EFLAGS: 00000217 ORIG_RAX: 000000000000002f RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004414a9 RDX: 0000000000000000 RSI: 0000000020158000 RDI: 0000000000000004 RBP: 0000000000000000 R08: 00000000d07b5838 R09: 00000000d07b5838 R10: 0000000000000020 R11: 0000000000000217 R12: 000000000000c0ef R13: 00000000006cd448 R14: 0000000000000000 R15: 0000000000000000 Code: 75 29 48 c7 c7 fd 92 7d 8a 31 c0 e8 4d 68 86 ff 80 3c 25 e8 03 2c 8b 00 75 11 48 c7 c7 2d 93 7d 8a 31 c0 4c 89 fe e8 32 68 86 ff <0f> 0b eb fe 48 3d ff ff ff 1f 0f 87 a2 fe ff ff 48 8b 1c 25 10 RIP: kmsan_get_shadow_address+0x1ce/0x1f0 mm/kmsan/kmsan.c:1325 RSP: ffff88019eb1f4c0 ---[ end trace 5deb237ccc67c79f ]---