UBSAN: undefined-behaviour in hash_ipmac_create
5 views
Skip to first unread message
syzbot
Sep 25, 2020, 5:23:17 PM9/25/20
to syzkaller...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: d09b8017 Linux 4.19.147
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=115516e5900000
kernel config: https://syzkaller.appspot.com/x/.config?x=1d6e3516b2a7476c
dashboard link: https://syzkaller.appspot.com/bug?extid=f1f14b9d6fcde8864036
compiler: gcc (GCC) 10.1.0-syz 20200507
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+f1f14b...@syzkaller.appspotmail.com
================================================================================
UBSAN: Undefined behaviour in net/netfilter/ipset/ip_set_hash_gen.h:125:6
shift exponent 32 is too large for 32-bit type 'unsigned int'
CPU: 1 PID: 12474 Comm: syz-executor.5 Not tainted 4.19.147-syzkaller #0
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+0x22c/0x33e lib/dump_stack.c:118
ubsan_epilogue+0xe/0x3a lib/ubsan.c:161
__ubsan_handle_shift_out_of_bounds.cold+0x1c4/0x250 lib/ubsan.c:422
htable_bits net/netfilter/ipset/ip_set_hash_gen.h:125 [inline]
hash_ipmac_create.cold+0x1a/0x2b net/netfilter/ipset/ip_set_hash_gen.h:1290
ip_set_create+0x70e/0x1380 net/netfilter/ipset/ip_set_core.c:940
nfnetlink_rcv_msg+0xeff/0x1210 net/netfilter/nfnetlink.c:233
netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2455
nfnetlink_rcv+0x1b2/0x41b net/netfilter/nfnetlink.c:565
netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
netlink_unicast+0x4d5/0x690 net/netlink/af_netlink.c:1344
netlink_sendmsg+0x717/0xcc0 net/netlink/af_netlink.c:1909
sock_sendmsg_nosec net/socket.c:622 [inline]
sock_sendmsg+0xc7/0x130 net/socket.c:632
sock_no_sendpage+0xf5/0x140 net/core/sock.c:2668
kernel_sendpage net/socket.c:3378 [inline]
sock_sendpage+0xdf/0x140 net/socket.c:847
pipe_to_sendpage+0x268/0x330 fs/splice.c:452
splice_from_pipe_feed fs/splice.c:503 [inline]
__splice_from_pipe+0x3af/0x820 fs/splice.c:627
splice_from_pipe fs/splice.c:662 [inline]
generic_splice_sendpage+0xd4/0x140 fs/splice.c:833
do_splice_from fs/splice.c:852 [inline]
do_splice fs/splice.c:1154 [inline]
__do_sys_splice fs/splice.c:1428 [inline]
__se_sys_splice+0xf31/0x15f0 fs/splice.c:1408
do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45e179
Code: 3d b2 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 0b b2 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f3a13eb9c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000113
RAX: ffffffffffffffda RBX: 0000000000033ec0 RCX: 000000000045e179
RDX: 0000000000000004 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 000000000118cf98 R08: 0000000100000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cf4c
R13: 00007fff651589ff R14: 00007f3a13eba9c0 R15: 000000000118cf4c
================================================================================
audit: type=1326 audit(1601068934.253:33): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=12479 comm="syz-executor.1" exe="/root/syz-executor.1" sig=31 arch=c000003e syscall=228 compat=0 ip=0x460fba code=0x0
audit: type=1326 audit(1601068934.523:34): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=12479 comm="syz-executor.1" exe="/root/syz-executor.1" sig=31 arch=c000003e syscall=228 compat=0 ip=0x460fba code=0x0
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'.
netlink: 256 bytes leftover after parsing attributes in process `syz-executor.4'.
netlink: 25 bytes leftover after parsing attributes in process `syz-executor.4'.
audit: type=1400 audit(1601068936.973:35): avc: denied { set_context_mgr } for pid=12543 comm="syz-executor.4" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=binder permissive=1
IPv6: ADDRCONF(NETDEV_UP): veth3: link is not ready
team0: Port device veth3 added
syz-executor.4 (12550) used greatest stack depth: 22824 bytes left
binder: 12596:12598 ioctl c018620c 20000740 returned -22
device batadv0 entered promiscuous mode
sctp: [Deprecated]: syz-executor.4 (pid 12683) Use of int in maxseg socket option.
Use struct sctp_assoc_value instead
8021q: adding VLAN 0 to HW filter on device batadv0
---
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: d09b8017 Linux 4.19.147
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=115516e5900000
kernel config: https://syzkaller.appspot.com/x/.config?x=1d6e3516b2a7476c
dashboard link: https://syzkaller.appspot.com/bug?extid=f1f14b9d6fcde8864036
compiler: gcc (GCC) 10.1.0-syz 20200507
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+f1f14b...@syzkaller.appspotmail.com
================================================================================
UBSAN: Undefined behaviour in net/netfilter/ipset/ip_set_hash_gen.h:125:6
shift exponent 32 is too large for 32-bit type 'unsigned int'
CPU: 1 PID: 12474 Comm: syz-executor.5 Not tainted 4.19.147-syzkaller #0
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+0x22c/0x33e lib/dump_stack.c:118
ubsan_epilogue+0xe/0x3a lib/ubsan.c:161
__ubsan_handle_shift_out_of_bounds.cold+0x1c4/0x250 lib/ubsan.c:422
htable_bits net/netfilter/ipset/ip_set_hash_gen.h:125 [inline]
hash_ipmac_create.cold+0x1a/0x2b net/netfilter/ipset/ip_set_hash_gen.h:1290
ip_set_create+0x70e/0x1380 net/netfilter/ipset/ip_set_core.c:940
nfnetlink_rcv_msg+0xeff/0x1210 net/netfilter/nfnetlink.c:233
netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2455
nfnetlink_rcv+0x1b2/0x41b net/netfilter/nfnetlink.c:565
netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
netlink_unicast+0x4d5/0x690 net/netlink/af_netlink.c:1344
netlink_sendmsg+0x717/0xcc0 net/netlink/af_netlink.c:1909
sock_sendmsg_nosec net/socket.c:622 [inline]
sock_sendmsg+0xc7/0x130 net/socket.c:632
sock_no_sendpage+0xf5/0x140 net/core/sock.c:2668
kernel_sendpage net/socket.c:3378 [inline]
sock_sendpage+0xdf/0x140 net/socket.c:847
pipe_to_sendpage+0x268/0x330 fs/splice.c:452
splice_from_pipe_feed fs/splice.c:503 [inline]
__splice_from_pipe+0x3af/0x820 fs/splice.c:627
splice_from_pipe fs/splice.c:662 [inline]
generic_splice_sendpage+0xd4/0x140 fs/splice.c:833
do_splice_from fs/splice.c:852 [inline]
do_splice fs/splice.c:1154 [inline]
__do_sys_splice fs/splice.c:1428 [inline]
__se_sys_splice+0xf31/0x15f0 fs/splice.c:1408
do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45e179
Code: 3d b2 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 0b b2 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f3a13eb9c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000113
RAX: ffffffffffffffda RBX: 0000000000033ec0 RCX: 000000000045e179
RDX: 0000000000000004 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 000000000118cf98 R08: 0000000100000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cf4c
R13: 00007fff651589ff R14: 00007f3a13eba9c0 R15: 000000000118cf4c
================================================================================
audit: type=1326 audit(1601068934.253:33): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=12479 comm="syz-executor.1" exe="/root/syz-executor.1" sig=31 arch=c000003e syscall=228 compat=0 ip=0x460fba code=0x0
audit: type=1326 audit(1601068934.523:34): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=12479 comm="syz-executor.1" exe="/root/syz-executor.1" sig=31 arch=c000003e syscall=228 compat=0 ip=0x460fba code=0x0
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'.
netlink: 256 bytes leftover after parsing attributes in process `syz-executor.4'.
netlink: 25 bytes leftover after parsing attributes in process `syz-executor.4'.
audit: type=1400 audit(1601068936.973:35): avc: denied { set_context_mgr } for pid=12543 comm="syz-executor.4" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=binder permissive=1
IPv6: ADDRCONF(NETDEV_UP): veth3: link is not ready
team0: Port device veth3 added
syz-executor.4 (12550) used greatest stack depth: 22824 bytes left
binder: 12596:12598 ioctl c018620c 20000740 returned -22
device batadv0 entered promiscuous mode
sctp: [Deprecated]: syz-executor.4 (pid 12683) Use of int in maxseg socket option.
Use struct sctp_assoc_value instead
8021q: adding VLAN 0 to HW filter on device batadv0
---
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
Sep 25, 2020, 7:31:16 PM9/25/20
to syzkaller...@googlegroups.com
syzbot has found a reproducer for the following issue on:
HEAD commit: d09b8017 Linux 4.19.147
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=12f4f3c3900000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13c6806b900000
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+f1f14b...@syzkaller.appspotmail.com
audit: type=1400 audit(1601076536.268:8): avc: denied { execmem } for pid=6496 comm="syz-executor212" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
RIP: 0033:0x4404d9
Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 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 7b 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fff3ac0d1d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000113
RAX:
HEAD commit: d09b8017 Linux 4.19.147
git tree: linux-4.19.y
kernel config: https://syzkaller.appspot.com/x/.config?x=1d6e3516b2a7476c
dashboard link: https://syzkaller.appspot.com/bug?extid=f1f14b9d6fcde8864036
compiler: gcc (GCC) 10.1.0-syz 20200507
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=122e918d900000
dashboard link: https://syzkaller.appspot.com/bug?extid=f1f14b9d6fcde8864036
compiler: gcc (GCC) 10.1.0-syz 20200507
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13c6806b900000
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+f1f14b...@syzkaller.appspotmail.com
================================================================================
UBSAN: Undefined behaviour in net/netfilter/ipset/ip_set_hash_gen.h:125:6
shift exponent 32 is too large for 32-bit type 'unsigned int'
CPU: 1 PID: 6496 Comm: syz-executor212 Not tainted 4.19.147-syzkaller #0
UBSAN: Undefined behaviour in net/netfilter/ipset/ip_set_hash_gen.h:125:6
shift exponent 32 is too large for 32-bit type 'unsigned int'
Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 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 7b 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fff3ac0d1d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000113
RAX:
Reply all
Reply to author
Forward
0 new messages