general protection fault in fib_check_nexthop
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syzbot
Aug 15, 2020, 3:50:22 AM8/15/20
to syzkaller-a...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: c3221b7a FROMLIST: ufs: change the way to complete fDevice..
git tree: android-5.4
console output: https://syzkaller.appspot.com/x/log.txt?x=124f47be900000
kernel config: https://syzkaller.appspot.com/x/.config?x=9a08223aba9cb282
dashboard link: https://syzkaller.appspot.com/bug?extid=83e374f5f06a781aea3f
compiler: Android (6032204 based on r370808) clang version 10.0.1 (https://android.googlesource.com/toolchain/llvm-project 6e765c10313d15c02ab29977a82938f66742c3a9)
Unfortunately, I don't have any reproducer for this issue yet.
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+83e374...@syzkaller.appspotmail.com
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 10448 Comm: syz-executor.2 Not tainted 5.4.58-syzkaller-00210-gc3221b7ac740 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:nexthop_check_scope net/ipv4/nexthop.c:628 [inline]
RIP: 0010:fib_check_nexthop+0x16e/0x310 net/ipv4/nexthop.c:663
Code: 8b 1b 48 83 c3 10 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 20 29 04 fe 48 8b 1b 48 83 c3 70 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 03 29 04 fe 48 8b 1b 48 83 c3 2f
RSP: 0018:ffff8881be8fef48 EFLAGS: 00010202
RAX: 000000000000000e RBX: 0000000000000070 RCX: 0000000000000002
RDX: ffffc9000348b000 RSI: 000000000000008b RDI: 00000000000000fe
RBP: 0000000000000001 R08: ffffffff836c0e1b R09: 0000000000000003
R10: ffffed1037d1fe19 R11: 0000000000000004 R12: 000000000000008b
R13: dffffc0000000000 R14: ffff8881be8ff860 R15: 000000000000008b
FS: 00007f8f6b61b700(0000) GS:ffff8881db900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000051bb20 CR3: 00000001d227d003 CR4: 00000000001606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
fib_create_info+0x1936/0x4200 net/ipv4/fib_semantics.c:1481
fib_table_insert+0x228/0x2030 net/ipv4/fib_trie.c:1142
inet_rtm_newroute+0x146/0x280 net/ipv4/fib_frontend.c:893
rtnetlink_rcv_msg+0x96e/0xc60 net/core/rtnetlink.c:5255
netlink_rcv_skb+0x200/0x480 net/netlink/af_netlink.c:2478
netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline]
netlink_unicast+0x8ad/0xa50 net/netlink/af_netlink.c:1329
netlink_sendmsg+0x9de/0xd80 net/netlink/af_netlink.c:1918
sock_sendmsg_nosec net/socket.c:638 [inline]
sock_sendmsg net/socket.c:658 [inline]
____sys_sendmsg+0x58a/0x8d0 net/socket.c:2298
___sys_sendmsg net/socket.c:2352 [inline]
__sys_sendmsg+0x2d5/0x3c0 net/socket.c:2398
do_syscall_64+0xcb/0x150 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45d239
Code: 5d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f8f6b61ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000026e00 RCX: 000000000045d239
RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000006
RBP: 000000000118cf80 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cf4c
R13: 00007fffa7f7fe1f R14: 00007f8f6b61b9c0 R15: 000000000118cf4c
Modules linked in:
---[ end trace 5256e5220b8bcd0c ]---
RIP: 0010:nexthop_check_scope net/ipv4/nexthop.c:628 [inline]
RIP: 0010:fib_check_nexthop+0x16e/0x310 net/ipv4/nexthop.c:663
Code: 8b 1b 48 83 c3 10 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 20 29 04 fe 48 8b 1b 48 83 c3 70 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 03 29 04 fe 48 8b 1b 48 83 c3 2f
RSP: 0018:ffff8881be8fef48 EFLAGS: 00010202
RAX: 000000000000000e RBX: 0000000000000070 RCX: 0000000000000002
RDX: ffffc9000348b000 RSI: 000000000000008b RDI: 00000000000000fe
RBP: 0000000000000001 R08: ffffffff836c0e1b R09: 0000000000000003
R10: ffffed1037d1fe19 R11: 0000000000000004 R12: 000000000000008b
R13: dffffc0000000000 R14: ffff8881be8ff860 R15: 000000000000008b
FS: 00007f8f6b61b700(0000) GS:ffff8881db900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb89fc9c000 CR3: 00000001d227d002 CR4: 00000000001606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot found the following issue on:
HEAD commit: c3221b7a FROMLIST: ufs: change the way to complete fDevice..
git tree: android-5.4
console output: https://syzkaller.appspot.com/x/log.txt?x=124f47be900000
kernel config: https://syzkaller.appspot.com/x/.config?x=9a08223aba9cb282
dashboard link: https://syzkaller.appspot.com/bug?extid=83e374f5f06a781aea3f
compiler: Android (6032204 based on r370808) clang version 10.0.1 (https://android.googlesource.com/toolchain/llvm-project 6e765c10313d15c02ab29977a82938f66742c3a9)
Unfortunately, I don't have any reproducer for this issue yet.
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+83e374...@syzkaller.appspotmail.com
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 10448 Comm: syz-executor.2 Not tainted 5.4.58-syzkaller-00210-gc3221b7ac740 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:nexthop_check_scope net/ipv4/nexthop.c:628 [inline]
RIP: 0010:fib_check_nexthop+0x16e/0x310 net/ipv4/nexthop.c:663
Code: 8b 1b 48 83 c3 10 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 20 29 04 fe 48 8b 1b 48 83 c3 70 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 03 29 04 fe 48 8b 1b 48 83 c3 2f
RSP: 0018:ffff8881be8fef48 EFLAGS: 00010202
RAX: 000000000000000e RBX: 0000000000000070 RCX: 0000000000000002
RDX: ffffc9000348b000 RSI: 000000000000008b RDI: 00000000000000fe
RBP: 0000000000000001 R08: ffffffff836c0e1b R09: 0000000000000003
R10: ffffed1037d1fe19 R11: 0000000000000004 R12: 000000000000008b
R13: dffffc0000000000 R14: ffff8881be8ff860 R15: 000000000000008b
FS: 00007f8f6b61b700(0000) GS:ffff8881db900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000051bb20 CR3: 00000001d227d003 CR4: 00000000001606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
fib_create_info+0x1936/0x4200 net/ipv4/fib_semantics.c:1481
fib_table_insert+0x228/0x2030 net/ipv4/fib_trie.c:1142
inet_rtm_newroute+0x146/0x280 net/ipv4/fib_frontend.c:893
rtnetlink_rcv_msg+0x96e/0xc60 net/core/rtnetlink.c:5255
netlink_rcv_skb+0x200/0x480 net/netlink/af_netlink.c:2478
netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline]
netlink_unicast+0x8ad/0xa50 net/netlink/af_netlink.c:1329
netlink_sendmsg+0x9de/0xd80 net/netlink/af_netlink.c:1918
sock_sendmsg_nosec net/socket.c:638 [inline]
sock_sendmsg net/socket.c:658 [inline]
____sys_sendmsg+0x58a/0x8d0 net/socket.c:2298
___sys_sendmsg net/socket.c:2352 [inline]
__sys_sendmsg+0x2d5/0x3c0 net/socket.c:2398
do_syscall_64+0xcb/0x150 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45d239
Code: 5d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f8f6b61ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000026e00 RCX: 000000000045d239
RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000006
RBP: 000000000118cf80 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cf4c
R13: 00007fffa7f7fe1f R14: 00007f8f6b61b9c0 R15: 000000000118cf4c
Modules linked in:
---[ end trace 5256e5220b8bcd0c ]---
RIP: 0010:nexthop_check_scope net/ipv4/nexthop.c:628 [inline]
RIP: 0010:fib_check_nexthop+0x16e/0x310 net/ipv4/nexthop.c:663
Code: 8b 1b 48 83 c3 10 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 20 29 04 fe 48 8b 1b 48 83 c3 70 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 03 29 04 fe 48 8b 1b 48 83 c3 2f
RSP: 0018:ffff8881be8fef48 EFLAGS: 00010202
RAX: 000000000000000e RBX: 0000000000000070 RCX: 0000000000000002
RDX: ffffc9000348b000 RSI: 000000000000008b RDI: 00000000000000fe
RBP: 0000000000000001 R08: ffffffff836c0e1b R09: 0000000000000003
R10: ffffed1037d1fe19 R11: 0000000000000004 R12: 000000000000008b
R13: dffffc0000000000 R14: ffff8881be8ff860 R15: 000000000000008b
FS: 00007f8f6b61b700(0000) GS:ffff8881db900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb89fc9c000 CR3: 00000001d227d002 CR4: 00000000001606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot
Dec 28, 2020, 5:57:14 PM12/28/20
to syzkaller-a...@googlegroups.com
Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.
Crashes did not happen for a while, no reproducer and no activity.
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