binder: 24577:24588 ioctl c0306201 20007000 returned -14 binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_ERROR: 29201 ================================================================== BUG: KASAN: slab-out-of-bounds in crypto_morus640_load_a crypto/morus640.c:111 [inline] BUG: KASAN: slab-out-of-bounds in crypto_morus640_decrypt_chunk+0xcf8/0xd20 crypto/morus640.c:278 Read of size 4 at addr ffff8801c680ee40 by task syz-executor2/24602 CPU: 1 PID: 24602 Comm: syz-executor2 Not tainted 4.17.0+ #7 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113 print_address_description+0x6c/0x20b mm/kasan/report.c:256 kasan_report_error mm/kasan/report.c:354 [inline] kasan_report.cold.7+0x242/0x2fe mm/kasan/report.c:412 __asan_report_load4_noabort+0x14/0x20 mm/kasan/report.c:432 crypto_morus640_load_a crypto/morus640.c:111 [inline] crypto_morus640_decrypt_chunk+0xcf8/0xd20 crypto/morus640.c:278 crypto_morus640_process_crypt.isra.12+0x15f/0x250 crypto/morus640.c:376 crypto_morus640_crypt+0x43a/0xa10 crypto/morus640.c:442 crypto_morus640_decrypt+0x23e/0x3d0 crypto/morus640.c:485 crypto_aead_decrypt include/crypto/aead.h:370 [inline] _aead_recvmsg crypto/algif_aead.c:315 [inline] aead_recvmsg+0x13e1/0x1bb0 crypto/algif_aead.c:334 sock_recvmsg_nosec net/socket.c:818 [inline] sock_recvmsg+0xd0/0x110 net/socket.c:825 ___sys_recvmsg+0x2b6/0x680 net/socket.c:2323 __sys_recvmmsg+0x74a/0xba0 net/socket.c:2427 __compat_sys_recvmmsg+0x166/0x180 net/compat.c:823 __do_compat_sys_recvmmsg net/compat.c:841 [inline] __se_compat_sys_recvmmsg net/compat.c:837 [inline] __ia32_compat_sys_recvmmsg+0xbd/0x150 net/compat.c:837 do_syscall_32_irqs_on arch/x86/entry/common.c:326 [inline] do_fast_syscall_32+0x34d/0xfb2 arch/x86/entry/common.c:397 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 RIP: 0023:0xf7f96cb9 Code: 55 08 8b 88 64 cd ff ff 8b 98 68 cd ff ff 89 c8 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 1c 24 c3 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000f5f920ac EFLAGS: 00000282 ORIG_RAX: 0000000000000151 RAX: ffffffffffffffda RBX: 0000000000000014 RCX: 0000000020006880 RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Allocated by task 24602: save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xc4/0xe0 mm/kasan/kasan.c:553 __do_kmalloc mm/slab.c:3718 [inline] __kmalloc+0x14e/0x760 mm/slab.c:3727 kmalloc include/linux/slab.h:518 [inline] kzalloc include/linux/slab.h:707 [inline] skcipher_next_slow crypto/skcipher.c:253 [inline] skcipher_walk_next+0x76c/0x1870 crypto/skcipher.c:357 skcipher_walk_first+0x151/0x410 crypto/skcipher.c:442 skcipher_walk_aead_common+0x7f8/0xbc0 crypto/skcipher.c:539 skcipher_walk_aead_decrypt+0xc7/0x100 crypto/skcipher.c:572 crypto_morus640_process_crypt.isra.12+0xa8/0x250 crypto/morus640.c:370 crypto_morus640_crypt+0x43a/0xa10 crypto/morus640.c:442 crypto_morus640_decrypt+0x23e/0x3d0 crypto/morus640.c:485 crypto_aead_decrypt include/crypto/aead.h:370 [inline] _aead_recvmsg crypto/algif_aead.c:315 [inline] aead_recvmsg+0x13e1/0x1bb0 crypto/algif_aead.c:334 sock_recvmsg_nosec net/socket.c:818 [inline] sock_recvmsg+0xd0/0x110 net/socket.c:825 ___sys_recvmsg+0x2b6/0x680 net/socket.c:2323 __sys_recvmmsg+0x74a/0xba0 net/socket.c:2427 __compat_sys_recvmmsg+0x166/0x180 net/compat.c:823 __do_compat_sys_recvmmsg net/compat.c:841 [inline] __se_compat_sys_recvmmsg net/compat.c:837 [inline] __ia32_compat_sys_recvmmsg+0xbd/0x150 net/compat.c:837 do_syscall_32_irqs_on arch/x86/entry/common.c:326 [inline] do_fast_syscall_32+0x34d/0xfb2 arch/x86/entry/common.c:397 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 Freed by task 4586: save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] __kasan_slab_free+0x11a/0x170 mm/kasan/kasan.c:521 kasan_slab_free+0xe/0x10 mm/kasan/kasan.c:528 __cache_free mm/slab.c:3498 [inline] kfree+0xd9/0x260 mm/slab.c:3813 kvfree+0x61/0x70 mm/util.c:442 __vunmap+0x326/0x460 mm/vmalloc.c:1529 vfree+0x68/0x100 mm/vmalloc.c:1593 compat_copy_entries_to_user net/ipv4/netfilter/ip_tables.c:1595 [inline] compat_get_entries net/ipv4/netfilter/ip_tables.c:1625 [inline] compat_do_ipt_get_ctl+0x829/0xc90 net/ipv4/netfilter/ip_tables.c:1655 compat_nf_sockopt net/netfilter/nf_sockopt.c:139 [inline] compat_nf_getsockopt+0x9e/0x140 net/netfilter/nf_sockopt.c:163 compat_ip_getsockopt+0x218/0x300 net/ipv4/ip_sockglue.c:1611 inet_csk_compat_getsockopt+0x97/0x120 net/ipv4/inet_connection_sock.c:1023 compat_tcp_getsockopt+0x49/0x80 net/ipv4/tcp.c:3545 compat_sock_common_getsockopt+0xb4/0x150 net/core/sock.c:3023 __compat_sys_getsockopt+0x1b6/0x890 net/compat.c:532 __do_compat_sys_socketcall net/compat.c:916 [inline] __se_compat_sys_socketcall net/compat.c:844 [inline] __ia32_compat_sys_socketcall+0xb35/0x1090 net/compat.c:844 do_syscall_32_irqs_on arch/x86/entry/common.c:326 [inline] do_fast_syscall_32+0x34d/0xfb2 arch/x86/entry/common.c:397 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 The buggy address belongs to the object at ffff8801c680ee40 which belongs to the cache kmalloc-32 of size 32 The buggy address is located 0 bytes inside of 32-byte region [ffff8801c680ee40, ffff8801c680ee60) The buggy address belongs to the page: page:ffffea00071a0380 count:1 mapcount:0 mapping:ffff8801da8001c0 index:0xffff8801c680efc1 flags: 0x2fffc0000000100(slab) raw: 02fffc0000000100 ffffea00075d9048 ffffea00075c44c8 ffff8801da8001c0 raw: ffff8801c680efc1 ffff8801c680e000 0000000100000016 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8801c680ed00: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc ffff8801c680ed80: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc >ffff8801c680ee00: fb fb fb fb fc fc fc fc 03 fc fc fc fc fc fc fc ^ ffff8801c680ee80: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc ffff8801c680ef00: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc ==================================================================