BUG: please report to dccp@vger.kernel.org => prev = NUM, last = NUM at net/dccp/ccids/lib/packet_history.c:LINE/tfrc_rx
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syzbot
Jul 10, 2022, 11:34:21 AM7/10/22
to syzkaller...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 3f8a27f9e27b Linux 4.19.211
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=165c822c080000
kernel config: https://syzkaller.appspot.com/x/.config?x=9b9277b418617afe
dashboard link: https://syzkaller.appspot.com/bug?extid=5b3ccb6d408508dbb4af
compiler: gcc version 10.2.1 20210110 (Debian 10.2.1-6)
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+5b3ccb...@syzkaller.appspotmail.com
device team_slave_0 left promiscuous mode
BUG: please report to dc...@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:422/tfrc_rx_hist_sample_rtt()
IPVS: ftp: loaded support on port[0] = 21
device team_slave_1 left promiscuous mode
bridge0: port 3(team0) entered disabled state
CPU: 0 PID: 10811 Comm: syz-executor.5 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
tfrc_rx_hist_sample_rtt.cold+0x57/0x5c net/dccp/ccids/lib/packet_history.c:422
ccid3_hc_rx_packet_recv+0x5be/0xe90 net/dccp/ccids/ccid3.c:767
ccid_hc_rx_packet_recv net/dccp/ccid.h:185 [inline]
dccp_deliver_input_to_ccids+0xe1/0x260 net/dccp/input.c:180
dccp_rcv_established net/dccp/input.c:378 [inline]
dccp_rcv_established+0x107/0x160 net/dccp/input.c:368
dccp_v4_do_rcv+0x136/0x1a0 net/dccp/ipv4.c:656
sk_backlog_rcv include/net/sock.h:952 [inline]
__release_sock+0x134/0x3a0 net/core/sock.c:2362
release_sock+0x54/0x1b0 net/core/sock.c:2901
dccp_sendmsg+0x639/0xc90 net/dccp/proto.c:818
inet_sendmsg+0x132/0x5a0 net/ipv4/af_inet.c:798
sock_sendmsg_nosec net/socket.c:651 [inline]
sock_sendmsg+0xc3/0x120 net/socket.c:661
___sys_sendmsg+0x3b3/0x8e0 net/socket.c:2227
__sys_sendmmsg+0x195/0x470 net/socket.c:2322
__do_sys_sendmmsg net/socket.c:2351 [inline]
__se_sys_sendmmsg net/socket.c:2348 [inline]
__x64_sys_sendmmsg+0x99/0x100 net/socket.c:2348
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7fce7632a109
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fce74c9f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007fce7643cf60 RCX: 00007fce7632a109
RDX: 0000000000000002 RSI: 0000000020000580 RDI: 0000000000000006
RBP: 00007fce7638405d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000804 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcf808bf1f R14: 00007fce74c9f300 R15: 0000000000022000
8021q: adding VLAN 0 to HW filter on device team0
bond0: Enslaving team0 as an active interface with an up link
netlink: 'syz-executor.4': attribute type 10 has an invalid length.
bond0: Releasing backup interface team0
dccp_close: ABORT with 18 bytes unread
dccp_close: ABORT with 6461 bytes unread
audit: type=1800 audit(1657467239.080:2): pid=10972 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.5" name="file0" dev="sda1" ino=14045 res=0
audit: type=1804 audit(1657467239.150:3): pid=10973 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir1515725438/syzkaller.uyWJl3/21/file0" dev="sda1" ino=14045 res=1
audit: type=1804 audit(1657467239.180:4): pid=10973 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir1515725438/syzkaller.uyWJl3/21/file0" dev="sda1" ino=14045 res=1
audit: type=1800 audit(1657467239.950:5): pid=10981 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.5" name="file0" dev="sda1" ino=14030 res=0
audit: type=1804 audit(1657467240.010:6): pid=10982 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir1515725438/syzkaller.uyWJl3/22/file0" dev="sda1" ino=14030 res=1
audit: type=1804 audit(1657467240.030:7): pid=10982 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir1515725438/syzkaller.uyWJl3/22/file0" dev="sda1" ino=14030 res=1
bridge0: port 3(team0) entered blocking state
bridge0: port 3(team0) entered disabled state
device team0 entered promiscuous mode
device team_slave_0 entered promiscuous mode
device team_slave_1 entered promiscuous mode
syz-executor.4 (10840) used greatest stack depth: 23184 bytes left
netlink: 'syz-executor.4': attribute type 10 has an invalid length.
device team0 left promiscuous mode
device team_slave_0 left promiscuous mode
device team_slave_1 left promiscuous mode
bridge0: port 3(team0) entered disabled state
8021q: adding VLAN 0 to HW filter on device team0
bond0: Enslaving team0 as an active interface with an up link
netlink: 'syz-executor.4': attribute type 10 has an invalid length.
bond0: Releasing backup interface team0
bridge0: port 3(team0) entered blocking state
bridge0: port 3(team0) entered disabled state
device team0 entered promiscuous mode
device team_slave_0 entered promiscuous mode
device team_slave_1 entered promiscuous mode
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'.
IPVS: ftp: loaded support on port[0] = 21
audit: type=1800 audit(1657467242.500:8): pid=11067 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.5" name="file0" dev="sda1" ino=14000 res=0
audit: type=1804 audit(1657467242.500:9): pid=11079 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir1515725438/syzkaller.uyWJl3/23/file0" dev="sda1" ino=14000 res=1
audit: type=1804 audit(1657467242.500:10): pid=11079 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir1515725438/syzkaller.uyWJl3/23/file0" dev="sda1" ino=14000 res=1
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'.
audit: type=1804 audit(1657467242.500:11): pid=11079 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir1515725438/syzkaller.uyWJl3/23/file0" dev="sda1" ino=14000 res=1
netlink: 'syz-executor.2': attribute type 27 has an invalid length.
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'.
IPVS: ftp: loaded support on port[0] = 21
EXT4-fs (loop0): Unrecognized mount option "00000000000000000000005 " or missing value
EXT4-fs (loop0): Unrecognized mount option "00000000000000000000005 " or missing value
IPVS: ftp: loaded support on port[0] = 21
FAT-fs (loop1): bogus number of reserved sectors
FAT-fs (loop1): Can't find a valid FAT filesystem
netlink: 'syz-executor.4': attribute type 1 has an invalid length.
EXT4-fs (loop0): Unrecognized mount option "00000000000000000000005 " or missing value
IPv6: ADDRCONF(NETDEV_UP): bond1: link is not ready
EXT4-fs (loop0): Unrecognized mount option "00000000000000000000005 " or missing value
8021q: adding VLAN 0 to HW filter on device bond1
FAT-fs (loop1): bogus number of reserved sectors
FAT-fs (loop1): Can't find a valid FAT filesystem
netlink: 'syz-executor.4': attribute type 1 has an invalid length.
IPv6: ADDRCONF(NETDEV_UP): bond2: link is not ready
8021q: adding VLAN 0 to HW filter on device bond2
IPVS: ftp: loaded support on port[0] = 21
FAT-fs (loop1): bogus number of reserved sectors
FAT-fs (loop1): Can't find a valid FAT filesystem
IPVS: sync thread started: state = BACKUP, mcast_ifn = veth0_macvtap, syncid = 1, id = 0
netlink: 'syz-executor.4': attribute type 1 has an invalid length.
IPv6: ADDRCONF(NETDEV_UP): bond3: link is not ready
8021q: adding VLAN 0 to HW filter on device bond3
IPVS: Unknown mcast interface: ����0_macvtap
IPVS: sync thread started: state = BACKUP, mcast_ifn = veth0_macvtap, syncid = 1, id = 0
netlink: 36 bytes leftover after parsing attributes in process `syz-executor.3'.
BFS-fs: bfs_fill_super(): loop1 is unclean, continuing
BFS-fs: bfs_fill_super(): Last block not available: 63
__ntfs_error: 111 callbacks suppressed
ntfs: (device loop3): parse_options(): Unrecognized mount option uid>18446744073709551615.
ntfs: (device loop3): parse_options(): Unrecognized mount option fsname.
BFS-fs: bfs_fill_super(): loop1 is unclean, continuing
ntfs: (device loop3): parse_options(): Unrecognized mount option .
BFS-fs: bfs_fill_super(): Last block not available: 63
netlink: 36 bytes leftover after parsing attributes in process `syz-executor.3'.
EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
audit: type=1326 audit(1657467246.791:123): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=11845 comm="syz-executor.5" exe="/root/syz-executor.5" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7fce7632a109 code=0x7ffc0000
BFS-fs: bfs_fill_super(): loop1 is unclean, continuing
BFS-fs: bfs_fill_super(): Last block not available: 63
audit: type=1326 audit(1657467246.821:124): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=11845 comm="syz-executor.5" exe="/root/syz-executor.5" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7fce7632a109 code=0x7ffc0000
audit: type=1326 audit(1657467246.881:125): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=11845 comm="syz-executor.5" exe="/root/syz-executor.5" sig=0 arch=c000003e syscall=46 compat=0 ip=0x7fce7632a109 code=0x7ffc0000
---
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: 3f8a27f9e27b Linux 4.19.211
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=165c822c080000
kernel config: https://syzkaller.appspot.com/x/.config?x=9b9277b418617afe
dashboard link: https://syzkaller.appspot.com/bug?extid=5b3ccb6d408508dbb4af
compiler: gcc version 10.2.1 20210110 (Debian 10.2.1-6)
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+5b3ccb...@syzkaller.appspotmail.com
device team_slave_0 left promiscuous mode
BUG: please report to dc...@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:422/tfrc_rx_hist_sample_rtt()
IPVS: ftp: loaded support on port[0] = 21
device team_slave_1 left promiscuous mode
bridge0: port 3(team0) entered disabled state
CPU: 0 PID: 10811 Comm: syz-executor.5 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
tfrc_rx_hist_sample_rtt.cold+0x57/0x5c net/dccp/ccids/lib/packet_history.c:422
ccid3_hc_rx_packet_recv+0x5be/0xe90 net/dccp/ccids/ccid3.c:767
ccid_hc_rx_packet_recv net/dccp/ccid.h:185 [inline]
dccp_deliver_input_to_ccids+0xe1/0x260 net/dccp/input.c:180
dccp_rcv_established net/dccp/input.c:378 [inline]
dccp_rcv_established+0x107/0x160 net/dccp/input.c:368
dccp_v4_do_rcv+0x136/0x1a0 net/dccp/ipv4.c:656
sk_backlog_rcv include/net/sock.h:952 [inline]
__release_sock+0x134/0x3a0 net/core/sock.c:2362
release_sock+0x54/0x1b0 net/core/sock.c:2901
dccp_sendmsg+0x639/0xc90 net/dccp/proto.c:818
inet_sendmsg+0x132/0x5a0 net/ipv4/af_inet.c:798
sock_sendmsg_nosec net/socket.c:651 [inline]
sock_sendmsg+0xc3/0x120 net/socket.c:661
___sys_sendmsg+0x3b3/0x8e0 net/socket.c:2227
__sys_sendmmsg+0x195/0x470 net/socket.c:2322
__do_sys_sendmmsg net/socket.c:2351 [inline]
__se_sys_sendmmsg net/socket.c:2348 [inline]
__x64_sys_sendmmsg+0x99/0x100 net/socket.c:2348
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7fce7632a109
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fce74c9f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007fce7643cf60 RCX: 00007fce7632a109
RDX: 0000000000000002 RSI: 0000000020000580 RDI: 0000000000000006
RBP: 00007fce7638405d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000804 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcf808bf1f R14: 00007fce74c9f300 R15: 0000000000022000
8021q: adding VLAN 0 to HW filter on device team0
bond0: Enslaving team0 as an active interface with an up link
netlink: 'syz-executor.4': attribute type 10 has an invalid length.
bond0: Releasing backup interface team0
dccp_close: ABORT with 18 bytes unread
dccp_close: ABORT with 6461 bytes unread
audit: type=1800 audit(1657467239.080:2): pid=10972 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.5" name="file0" dev="sda1" ino=14045 res=0
audit: type=1804 audit(1657467239.150:3): pid=10973 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir1515725438/syzkaller.uyWJl3/21/file0" dev="sda1" ino=14045 res=1
audit: type=1804 audit(1657467239.180:4): pid=10973 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir1515725438/syzkaller.uyWJl3/21/file0" dev="sda1" ino=14045 res=1
audit: type=1800 audit(1657467239.950:5): pid=10981 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.5" name="file0" dev="sda1" ino=14030 res=0
audit: type=1804 audit(1657467240.010:6): pid=10982 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir1515725438/syzkaller.uyWJl3/22/file0" dev="sda1" ino=14030 res=1
audit: type=1804 audit(1657467240.030:7): pid=10982 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir1515725438/syzkaller.uyWJl3/22/file0" dev="sda1" ino=14030 res=1
bridge0: port 3(team0) entered blocking state
bridge0: port 3(team0) entered disabled state
device team0 entered promiscuous mode
device team_slave_0 entered promiscuous mode
device team_slave_1 entered promiscuous mode
syz-executor.4 (10840) used greatest stack depth: 23184 bytes left
netlink: 'syz-executor.4': attribute type 10 has an invalid length.
device team0 left promiscuous mode
device team_slave_0 left promiscuous mode
device team_slave_1 left promiscuous mode
bridge0: port 3(team0) entered disabled state
8021q: adding VLAN 0 to HW filter on device team0
bond0: Enslaving team0 as an active interface with an up link
netlink: 'syz-executor.4': attribute type 10 has an invalid length.
bond0: Releasing backup interface team0
bridge0: port 3(team0) entered blocking state
bridge0: port 3(team0) entered disabled state
device team0 entered promiscuous mode
device team_slave_0 entered promiscuous mode
device team_slave_1 entered promiscuous mode
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'.
IPVS: ftp: loaded support on port[0] = 21
audit: type=1800 audit(1657467242.500:8): pid=11067 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.5" name="file0" dev="sda1" ino=14000 res=0
audit: type=1804 audit(1657467242.500:9): pid=11079 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir1515725438/syzkaller.uyWJl3/23/file0" dev="sda1" ino=14000 res=1
audit: type=1804 audit(1657467242.500:10): pid=11079 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir1515725438/syzkaller.uyWJl3/23/file0" dev="sda1" ino=14000 res=1
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'.
audit: type=1804 audit(1657467242.500:11): pid=11079 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir1515725438/syzkaller.uyWJl3/23/file0" dev="sda1" ino=14000 res=1
netlink: 'syz-executor.2': attribute type 27 has an invalid length.
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'.
IPVS: ftp: loaded support on port[0] = 21
EXT4-fs (loop0): Unrecognized mount option "00000000000000000000005 " or missing value
EXT4-fs (loop0): Unrecognized mount option "00000000000000000000005 " or missing value
IPVS: ftp: loaded support on port[0] = 21
FAT-fs (loop1): bogus number of reserved sectors
FAT-fs (loop1): Can't find a valid FAT filesystem
netlink: 'syz-executor.4': attribute type 1 has an invalid length.
EXT4-fs (loop0): Unrecognized mount option "00000000000000000000005 " or missing value
IPv6: ADDRCONF(NETDEV_UP): bond1: link is not ready
EXT4-fs (loop0): Unrecognized mount option "00000000000000000000005 " or missing value
8021q: adding VLAN 0 to HW filter on device bond1
FAT-fs (loop1): bogus number of reserved sectors
FAT-fs (loop1): Can't find a valid FAT filesystem
netlink: 'syz-executor.4': attribute type 1 has an invalid length.
IPv6: ADDRCONF(NETDEV_UP): bond2: link is not ready
8021q: adding VLAN 0 to HW filter on device bond2
IPVS: ftp: loaded support on port[0] = 21
FAT-fs (loop1): bogus number of reserved sectors
FAT-fs (loop1): Can't find a valid FAT filesystem
IPVS: sync thread started: state = BACKUP, mcast_ifn = veth0_macvtap, syncid = 1, id = 0
netlink: 'syz-executor.4': attribute type 1 has an invalid length.
IPv6: ADDRCONF(NETDEV_UP): bond3: link is not ready
8021q: adding VLAN 0 to HW filter on device bond3
IPVS: Unknown mcast interface: ����0_macvtap
IPVS: sync thread started: state = BACKUP, mcast_ifn = veth0_macvtap, syncid = 1, id = 0
netlink: 36 bytes leftover after parsing attributes in process `syz-executor.3'.
BFS-fs: bfs_fill_super(): loop1 is unclean, continuing
BFS-fs: bfs_fill_super(): Last block not available: 63
__ntfs_error: 111 callbacks suppressed
ntfs: (device loop3): parse_options(): Unrecognized mount option uid>18446744073709551615.
ntfs: (device loop3): parse_options(): Unrecognized mount option fsname.
BFS-fs: bfs_fill_super(): loop1 is unclean, continuing
ntfs: (device loop3): parse_options(): Unrecognized mount option .
BFS-fs: bfs_fill_super(): Last block not available: 63
netlink: 36 bytes leftover after parsing attributes in process `syz-executor.3'.
EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
audit: type=1326 audit(1657467246.791:123): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=11845 comm="syz-executor.5" exe="/root/syz-executor.5" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7fce7632a109 code=0x7ffc0000
BFS-fs: bfs_fill_super(): loop1 is unclean, continuing
BFS-fs: bfs_fill_super(): Last block not available: 63
audit: type=1326 audit(1657467246.821:124): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=11845 comm="syz-executor.5" exe="/root/syz-executor.5" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7fce7632a109 code=0x7ffc0000
audit: type=1326 audit(1657467246.881:125): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=11845 comm="syz-executor.5" exe="/root/syz-executor.5" sig=0 arch=c000003e syscall=46 compat=0 ip=0x7fce7632a109 code=0x7ffc0000
---
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
Jul 10, 2022, 12:10:22 PM7/10/22
to syzkaller...@googlegroups.com
syzbot has found a reproducer for the following issue on:
HEAD commit: 3f8a27f9e27b Linux 4.19.211
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=10dc822c080000
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+5b3ccb...@syzkaller.appspotmail.com
IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
dccp_close: ABORT with 99 bytes unread
dccp_close: ABORT with 10465 bytes unread
CPU: 1 PID: 9567 Comm: syz-executor.5 Not tainted 4.19.211-syzkaller #0
RAX: ffffffffffffffda RBX: 00007f1709072f60 RCX: 00007f1708f60109
RDX: 0000000000000002 RSI: 0000000020000580 RDI: 0000000000000004
RBP: 00007f1708fba05d R08: 0000000000000000 R09: 0000000000000000
IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
dccp_close: ABORT with 54 bytes unread
IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
dccp_close: ABORT with 99 bytes unread
dccp_close: ABORT with 99 bytes unread
dccp_v4_rcv+0xed8/0x1a60 net/dccp/ipv4.c:877
ip_local_deliver_finish+0x495/0xc00 net/ipv4/ip_input.c:215
NF_HOOK include/linux/netfilter.h:289 [inline]
ip_local_deliver+0x188/0x500 net/ipv4/ip_input.c:256
dst_input include/net/dst.h:461 [inline]
ip_rcv_finish+0x1ca/0x2e0 net/ipv4/ip_input.c:414
NF_HOOK include/linux/netfilter.h:289 [inline]
ip_rcv+0xca/0x3c0 net/ipv4/ip_input.c:524
__netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:4954
__netif_receive_skb+0x27/0x1c0 net/core/dev.c:5066
process_backlog+0x241/0x700 net/core/dev.c:5849
napi_poll net/core/dev.c:6280 [inline]
net_rx_action+0x4ac/0xfb0 net/core/dev.c:6346
__do_softirq+0x265/0x980 kernel/softirq.c:292
run_ksoftirqd+0x57/0x110 kernel/softirq.c:653
smpboot_thread_fn+0x655/0x9e0 kernel/smpboot.c:164
kthread+0x33f/0x460 kernel/kthread.c:259
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
dccp_close: ABORT with 66 bytes unread
dccp_close: ABORT with 10465 bytes unread
dccp_close: ABORT with 99 bytes unread
HEAD commit: 3f8a27f9e27b Linux 4.19.211
git tree: linux-4.19.y
kernel config: https://syzkaller.appspot.com/x/.config?x=9b9277b418617afe
dashboard link: https://syzkaller.appspot.com/bug?extid=5b3ccb6d408508dbb4af
compiler: gcc version 10.2.1 20210110 (Debian 10.2.1-6)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11b29782080000
dashboard link: https://syzkaller.appspot.com/bug?extid=5b3ccb6d408508dbb4af
compiler: gcc version 10.2.1 20210110 (Debian 10.2.1-6)
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+5b3ccb...@syzkaller.appspotmail.com
IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
BUG: please report to dc...@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:422/tfrc_rx_hist_sample_rtt()
IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
dccp_close: ABORT with 99 bytes unread
dccp_close: ABORT with 10465 bytes unread
CPU: 1 PID: 9567 Comm: syz-executor.5 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
tfrc_rx_hist_sample_rtt.cold+0x57/0x5c net/dccp/ccids/lib/packet_history.c:422
ccid3_hc_rx_packet_recv+0x5be/0xe90 net/dccp/ccids/ccid3.c:767
ccid_hc_rx_packet_recv net/dccp/ccid.h:185 [inline]
dccp_deliver_input_to_ccids+0xe1/0x260 net/dccp/input.c:180
dccp_rcv_established net/dccp/input.c:378 [inline]
dccp_rcv_established+0x107/0x160 net/dccp/input.c:368
dccp_v4_do_rcv+0x136/0x1a0 net/dccp/ipv4.c:656
sk_backlog_rcv include/net/sock.h:952 [inline]
__release_sock+0x134/0x3a0 net/core/sock.c:2362
release_sock+0x54/0x1b0 net/core/sock.c:2901
dccp_sendmsg+0x639/0xc90 net/dccp/proto.c:818
dccp_close: ABORT with 99 bytes unread
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
tfrc_rx_hist_sample_rtt.cold+0x57/0x5c net/dccp/ccids/lib/packet_history.c:422
ccid3_hc_rx_packet_recv+0x5be/0xe90 net/dccp/ccids/ccid3.c:767
ccid_hc_rx_packet_recv net/dccp/ccid.h:185 [inline]
dccp_deliver_input_to_ccids+0xe1/0x260 net/dccp/input.c:180
dccp_rcv_established net/dccp/input.c:378 [inline]
dccp_rcv_established+0x107/0x160 net/dccp/input.c:368
dccp_v4_do_rcv+0x136/0x1a0 net/dccp/ipv4.c:656
sk_backlog_rcv include/net/sock.h:952 [inline]
__release_sock+0x134/0x3a0 net/core/sock.c:2362
release_sock+0x54/0x1b0 net/core/sock.c:2901
dccp_sendmsg+0x639/0xc90 net/dccp/proto.c:818
inet_sendmsg+0x132/0x5a0 net/ipv4/af_inet.c:798
sock_sendmsg_nosec net/socket.c:651 [inline]
sock_sendmsg+0xc3/0x120 net/socket.c:661
___sys_sendmsg+0x3b3/0x8e0 net/socket.c:2227
__sys_sendmmsg+0x195/0x470 net/socket.c:2322
__do_sys_sendmmsg net/socket.c:2351 [inline]
__se_sys_sendmmsg net/socket.c:2348 [inline]
__x64_sys_sendmmsg+0x99/0x100 net/socket.c:2348
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f1708f60109
sock_sendmsg_nosec net/socket.c:651 [inline]
sock_sendmsg+0xc3/0x120 net/socket.c:661
___sys_sendmsg+0x3b3/0x8e0 net/socket.c:2227
__sys_sendmmsg+0x195/0x470 net/socket.c:2322
__do_sys_sendmmsg net/socket.c:2351 [inline]
__se_sys_sendmmsg net/socket.c:2348 [inline]
__x64_sys_sendmmsg+0x99/0x100 net/socket.c:2348
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f17086d5168 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f1709072f60 RCX: 00007f1708f60109
RDX: 0000000000000002 RSI: 0000000020000580 RDI: 0000000000000004
RBP: 00007f1708fba05d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000804 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff76f257bf R14: 00007f17086d5300 R15: 0000000000022000
IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
dccp_close: ABORT with 54 bytes unread
IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
dccp_close: ABORT with 99 bytes unread
dccp_close: ABORT with 99 bytes unread
BUG: please report to dc...@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:422/tfrc_rx_hist_sample_rtt()
CPU: 1 PID: 18 Comm: ksoftirqd/1 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
tfrc_rx_hist_sample_rtt.cold+0x57/0x5c net/dccp/ccids/lib/packet_history.c:422
ccid3_hc_rx_packet_recv+0x5be/0xe90 net/dccp/ccids/ccid3.c:767
ccid_hc_rx_packet_recv net/dccp/ccid.h:185 [inline]
dccp_deliver_input_to_ccids+0xe1/0x260 net/dccp/input.c:180
dccp_rcv_established net/dccp/input.c:378 [inline]
dccp_rcv_established+0x107/0x160 net/dccp/input.c:368
dccp_v4_do_rcv+0x136/0x1a0 net/dccp/ipv4.c:656
sk_backlog_rcv include/net/sock.h:952 [inline]
__sk_receive_skb+0x350/0xbb0 net/core/sock.c:473
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
tfrc_rx_hist_sample_rtt.cold+0x57/0x5c net/dccp/ccids/lib/packet_history.c:422
ccid3_hc_rx_packet_recv+0x5be/0xe90 net/dccp/ccids/ccid3.c:767
ccid_hc_rx_packet_recv net/dccp/ccid.h:185 [inline]
dccp_deliver_input_to_ccids+0xe1/0x260 net/dccp/input.c:180
dccp_rcv_established net/dccp/input.c:378 [inline]
dccp_rcv_established+0x107/0x160 net/dccp/input.c:368
dccp_v4_do_rcv+0x136/0x1a0 net/dccp/ipv4.c:656
sk_backlog_rcv include/net/sock.h:952 [inline]
dccp_v4_rcv+0xed8/0x1a60 net/dccp/ipv4.c:877
ip_local_deliver_finish+0x495/0xc00 net/ipv4/ip_input.c:215
NF_HOOK include/linux/netfilter.h:289 [inline]
ip_local_deliver+0x188/0x500 net/ipv4/ip_input.c:256
dst_input include/net/dst.h:461 [inline]
ip_rcv_finish+0x1ca/0x2e0 net/ipv4/ip_input.c:414
NF_HOOK include/linux/netfilter.h:289 [inline]
ip_rcv+0xca/0x3c0 net/ipv4/ip_input.c:524
__netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:4954
__netif_receive_skb+0x27/0x1c0 net/core/dev.c:5066
process_backlog+0x241/0x700 net/core/dev.c:5849
napi_poll net/core/dev.c:6280 [inline]
net_rx_action+0x4ac/0xfb0 net/core/dev.c:6346
__do_softirq+0x265/0x980 kernel/softirq.c:292
run_ksoftirqd+0x57/0x110 kernel/softirq.c:653
smpboot_thread_fn+0x655/0x9e0 kernel/smpboot.c:164
kthread+0x33f/0x460 kernel/kthread.c:259
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
dccp_close: ABORT with 66 bytes unread
dccp_close: ABORT with 10465 bytes unread
dccp_close: ABORT with 99 bytes unread
syzbot
Jul 12, 2022, 11:43:22 PM7/12/22
to syzkaller...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 424a46ea058e Linux 4.14.288
git tree: linux-4.14.y
console output: https://syzkaller.appspot.com/x/log.txt?x=1554252a080000
kernel config: https://syzkaller.appspot.com/x/.config?x=73682fefcf4b3022
dashboard link: https://syzkaller.appspot.com/bug?extid=6636d992ba37499afd8c
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+6636d9...@syzkaller.appspotmail.com
IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready
batman_adv: batadv0: Interface activated: batadv_slave_1
IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
BUG: please report to dc...@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:424/tfrc_rx_hist_sample_rtt()
CPU: 0 PID: 9459 Comm: syz-executor.2 Not tainted 4.14.288-syzkaller #0
dump_stack+0x1b2/0x281 lib/dump_stack.c:58
tfrc_rx_hist_sample_rtt.cold+0x59/0x5e net/dccp/ccids/lib/packet_history.c:424
ccid3_hc_rx_packet_recv+0x4fd/0xde0 net/dccp/ccids/ccid3.c:766
ccid_hc_rx_packet_recv net/dccp/ccid.h:185 [inline]
dccp_deliver_input_to_ccids+0xd3/0x240 net/dccp/input.c:180
dccp_rcv_established net/dccp/input.c:378 [inline]
dccp_rcv_established+0xdb/0x140 net/dccp/input.c:368
dccp_v4_do_rcv+0x119/0x170 net/dccp/ipv4.c:656
sk_backlog_rcv include/net/sock.h:923 [inline]
__release_sock+0x12a/0x350 net/core/sock.c:2284
Bluetooth: hci2 command 0x0419 tx timeout
release_sock+0x54/0x1b0 net/core/sock.c:2822
dccp_sendmsg+0x4eb/0x890 net/dccp/proto.c:813
Bluetooth: hci4 command 0x0419 tx timeout
inet_sendmsg+0x11a/0x4e0 net/ipv4/af_inet.c:762
sock_sendmsg_nosec net/socket.c:646 [inline]
sock_sendmsg+0xb5/0x100 net/socket.c:656
Bluetooth: hci5 command 0x0419 tx timeout
__sys_sendmmsg+0x129/0x330 net/socket.c:2152
Bluetooth: hci3 command 0x0419 tx timeout
SYSC_sendmmsg net/socket.c:2183 [inline]
SyS_sendmmsg+0x2f/0x50 net/socket.c:2178
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f178fbba109
RSP: 002b:00007f178f32f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f178fcccf60 RCX: 00007f178fbba109
dccp_close: ABORT with 45 bytes unread
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
https://goo.gl/tpsmEJ#testing-patches
syzbot found the following issue on:
HEAD commit: 424a46ea058e Linux 4.14.288
git tree: linux-4.14.y
console output: https://syzkaller.appspot.com/x/log.txt?x=1554252a080000
kernel config: https://syzkaller.appspot.com/x/.config?x=73682fefcf4b3022
dashboard link: https://syzkaller.appspot.com/bug?extid=6636d992ba37499afd8c
compiler: gcc version 10.2.1 20210110 (Debian 10.2.1-6)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15168d92080000
IMPORTANT: if you fix the issue, please add the following tag to the commit:
IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready
batman_adv: batadv0: Interface activated: batadv_slave_1
IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
BUG: please report to dc...@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:424/tfrc_rx_hist_sample_rtt()
CPU: 0 PID: 9459 Comm: syz-executor.2 Not tainted 4.14.288-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
Call Trace:
dump_stack+0x1b2/0x281 lib/dump_stack.c:58
tfrc_rx_hist_sample_rtt.cold+0x59/0x5e net/dccp/ccids/lib/packet_history.c:424
ccid3_hc_rx_packet_recv+0x4fd/0xde0 net/dccp/ccids/ccid3.c:766
ccid_hc_rx_packet_recv net/dccp/ccid.h:185 [inline]
dccp_deliver_input_to_ccids+0xd3/0x240 net/dccp/input.c:180
dccp_rcv_established net/dccp/input.c:378 [inline]
dccp_rcv_established+0xdb/0x140 net/dccp/input.c:368
dccp_v4_do_rcv+0x119/0x170 net/dccp/ipv4.c:656
sk_backlog_rcv include/net/sock.h:923 [inline]
__release_sock+0x12a/0x350 net/core/sock.c:2284
Bluetooth: hci2 command 0x0419 tx timeout
release_sock+0x54/0x1b0 net/core/sock.c:2822
dccp_sendmsg+0x4eb/0x890 net/dccp/proto.c:813
Bluetooth: hci4 command 0x0419 tx timeout
inet_sendmsg+0x11a/0x4e0 net/ipv4/af_inet.c:762
sock_sendmsg_nosec net/socket.c:646 [inline]
sock_sendmsg+0xb5/0x100 net/socket.c:656
dccp_close: ABORT with 99 bytes unread
___sys_sendmsg+0x326/0x800 net/socket.c:2062
Bluetooth: hci5 command 0x0419 tx timeout
__sys_sendmmsg+0x129/0x330 net/socket.c:2152
Bluetooth: hci3 command 0x0419 tx timeout
SYSC_sendmmsg net/socket.c:2183 [inline]
SyS_sendmmsg+0x2f/0x50 net/socket.c:2178
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f178fbba109
RSP: 002b:00007f178f32f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f178fcccf60 RCX: 00007f178fbba109
RDX: 0000000000000002 RSI: 0000000020000580 RDI: 0000000000000004
RBP: 00007f178fc1405d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000804 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe64d9f4ff R14: 00007f178f32f300 R15: 0000000000022000
dccp_close: ABORT with 45 bytes unread
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
dccp_close: ABORT with 99 bytes unread
dccp_close: ABORT with 99 bytes unread
dccp_close: ABORT with 99 bytes unread
---
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 can test patches for this issue, for details see:
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.
https://goo.gl/tpsmEJ#testing-patches
syzbot
Jul 28, 2022, 6:39:20 PM7/28/22
to syzkaller...@googlegroups.com
syzbot has found a reproducer for the following issue on:
HEAD commit: 3f8a27f9e27b Linux 4.19.211
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=13207302080000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10cb7faa080000
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+5b3ccb...@syzkaller.appspotmail.com
IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready
__sys_sendmsg net/socket.c:2265 [inline]
__do_sys_sendmsg net/socket.c:2274 [inline]
__se_sys_sendmsg net/socket.c:2272 [inline]
__x64_sys_sendmsg+0x132/0x220 net/socket.c:2272
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f992a0cd419
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 15 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f992a07b308 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f992a1564e8 RCX: 00007f992a0cd419
RDX: 0000000000000000 RSI: 0000000020000400 RDI: 0000000000000007
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f992a1564e0
HEAD commit: 3f8a27f9e27b Linux 4.19.211
git tree: linux-4.19.y
kernel config: https://syzkaller.appspot.com/x/.config?x=9b9277b418617afe
dashboard link: https://syzkaller.appspot.com/bug?extid=5b3ccb6d408508dbb4af
compiler: gcc version 10.2.1 20210110 (Debian 10.2.1-6)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=104e13f6080000
dashboard link: https://syzkaller.appspot.com/bug?extid=5b3ccb6d408508dbb4af
compiler: gcc version 10.2.1 20210110 (Debian 10.2.1-6)
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10cb7faa080000
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+5b3ccb...@syzkaller.appspotmail.com
IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready
batman_adv: batadv0: Interface activated: batadv_slave_1
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
BUG: please report to dc...@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:422/tfrc_rx_hist_sample_rtt()
CPU: 0 PID: 8311 Comm: syz-executor960 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
tfrc_rx_hist_sample_rtt.cold+0x57/0x5c net/dccp/ccids/lib/packet_history.c:422
ccid3_hc_rx_packet_recv+0x5be/0xe90 net/dccp/ccids/ccid3.c:767
ccid_hc_rx_packet_recv net/dccp/ccid.h:185 [inline]
dccp_deliver_input_to_ccids+0xe1/0x260 net/dccp/input.c:180
dccp_rcv_established net/dccp/input.c:378 [inline]
dccp_rcv_established+0x107/0x160 net/dccp/input.c:368
dccp_v4_do_rcv+0x136/0x1a0 net/dccp/ipv4.c:656
sk_backlog_rcv include/net/sock.h:952 [inline]
__release_sock+0x134/0x3a0 net/core/sock.c:2362
release_sock+0x54/0x1b0 net/core/sock.c:2901
dccp_sendmsg+0x639/0xc90 net/dccp/proto.c:818
inet_sendmsg+0x132/0x5a0 net/ipv4/af_inet.c:798
sock_sendmsg_nosec net/socket.c:651 [inline]
sock_sendmsg+0xc3/0x120 net/socket.c:661
___sys_sendmsg+0x7bb/0x8e0 net/socket.c:2227
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
tfrc_rx_hist_sample_rtt.cold+0x57/0x5c net/dccp/ccids/lib/packet_history.c:422
ccid3_hc_rx_packet_recv+0x5be/0xe90 net/dccp/ccids/ccid3.c:767
ccid_hc_rx_packet_recv net/dccp/ccid.h:185 [inline]
dccp_deliver_input_to_ccids+0xe1/0x260 net/dccp/input.c:180
dccp_rcv_established net/dccp/input.c:378 [inline]
dccp_rcv_established+0x107/0x160 net/dccp/input.c:368
dccp_v4_do_rcv+0x136/0x1a0 net/dccp/ipv4.c:656
sk_backlog_rcv include/net/sock.h:952 [inline]
__release_sock+0x134/0x3a0 net/core/sock.c:2362
release_sock+0x54/0x1b0 net/core/sock.c:2901
dccp_sendmsg+0x639/0xc90 net/dccp/proto.c:818
inet_sendmsg+0x132/0x5a0 net/ipv4/af_inet.c:798
sock_sendmsg_nosec net/socket.c:651 [inline]
sock_sendmsg+0xc3/0x120 net/socket.c:661
__sys_sendmsg net/socket.c:2265 [inline]
__do_sys_sendmsg net/socket.c:2274 [inline]
__se_sys_sendmsg net/socket.c:2272 [inline]
__x64_sys_sendmsg+0x132/0x220 net/socket.c:2272
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f992a0cd419
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 15 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f992a07b308 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f992a1564e8 RCX: 00007f992a0cd419
RDX: 0000000000000000 RSI: 0000000020000400 RDI: 0000000000000007
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f992a1564e0
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