bisecting fixing commit since 58b454ebf81e5ae9391957d99cf89566d9eec1b1
building syzkaller on b0e8efcb4b0aac61f4647a76bbe54a5d38a370ba
testing commit 58b454ebf81e5ae9391957d99cf89566d9eec1b1 with gcc (GCC) 8.1.0
kernel signature: 64b66612030d85b45d62c809699b4e8609682fcab03241347757d47534ed26ab
all runs: crashed: kernel BUG at ./include/linux/scatterlist.h:LINE!
testing current HEAD 12cd844a39ed16aa183a820a54fe6f9a0bb4cd14
testing commit 12cd844a39ed16aa183a820a54fe6f9a0bb4cd14 with gcc (GCC) 8.1.0
kernel signature: f473e4f37a2efc2a361891138f456def2174cec830515b1160b3f2176226c6b1
all runs: crashed: kernel BUG at include/linux/scatterlist.h:LINE!
revisions tested: 2, total time: 26m31.817016124s (build: 17m57.38945536s, test: 7m16.7433629s)
the crash still happens on HEAD
commit msg: Linux 4.14.173
crash: kernel BUG at include/linux/scatterlist.h:LINE!
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready
8021q: adding VLAN 0 to HW filter on device batadv0
------------[ cut here ]------------
kernel BUG at include/linux/scatterlist.h:124!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 7169 Comm: syz-executor.3 Not tainted 4.14.173-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff88807e9100c0 task.stack: ffff88808c758000
RIP: 0010:sg_page include/linux/scatterlist.h:124 [inline]
RIP: 0010:gcmaes_decrypt.constprop.13+0x904/0xe90 arch/x86/crypto/aesni-intel_glue.c:828
RSP: 0018:ffff88808c75f658 EFLAGS: 00010202
RAX: ffffea000261d642 RBX: ffff8880a9beb188 RCX: ffff8880a9beadd0
RDX: 0000000087654321 RSI: 3030093a646e5067 RDI: 1ffff1101537d5ba
RBP: ffff88808c75f750 R08: 0000000000000007 R09: 0000000000000000
R10: ffffed10118ebef1 R11: ffff88808c75f78b R12: 0000000000000010
R13: ffff8880825c5480 R14: ffff8880825c5488 R15: ffff8880a9beb148
FS:  00007ff669ce5700(0000) GS:ffff8880aef00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000073c000 CR3: 00000000987c8000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 generic_gcmaes_decrypt+0xf8/0x140 arch/x86/crypto/aesni-intel_glue.c:1126
 crypto_aead_decrypt include/crypto/aead.h:362 [inline]
 gcmaes_wrapper_decrypt+0x146/0x1d0 arch/x86/crypto/aesni-intel_glue.c:961
 crypto_aead_decrypt include/crypto/aead.h:362 [inline]
 _aead_recvmsg crypto/algif_aead.c:316 [inline]
 aead_recvmsg+0x1189/0x2680 crypto/algif_aead.c:335
 sock_recvmsg_nosec net/socket.c:819 [inline]
 sock_recvmsg+0xb9/0xf0 net/socket.c:826
 ___sys_recvmsg+0x209/0x4e0 net/socket.c:2221
 __sys_recvmmsg+0x20d/0x600 net/socket.c:2329
 SYSC_recvmmsg net/socket.c:2405 [inline]
 SyS_recvmmsg+0x109/0x120 net/socket.c:2394
 do_syscall_64+0x1c9/0x5b0 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x458c29
RSP: 002b:00007ff669ce4c78 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000458c29
RDX: 0000000000000001 RSI: 0000000020008cc0 RDI: 0000000000000004
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff669ce56d4
R13: 00000000004c5b80 R14: 00000000004da118 R15: 00000000ffffffff
Code: 85 93 04 00 00 41 f6 42 08 01 0f 84 b8 fd ff ff 0f 0b e8 69 bb d1 ff e9 0d fe ff ff 0f 0b 0f 0b 0f 0b 0f 0b e8 57 bb d1 ff eb 96 <0f> 0b b8 f4 ff ff ff e9 3f fa ff ff 0f 0b 48 b8 00 00 00 00 00 
RIP: sg_page include/linux/scatterlist.h:124 [inline] RSP: ffff88808c75f658
RIP: gcmaes_decrypt.constprop.13+0x904/0xe90 arch/x86/crypto/aesni-intel_glue.c:828 RSP: ffff88808c75f658
---[ end trace 5d91a742ce521904 ]---