Extracting prog: 30m39.487416929s
Minimizing prog: 50m21.745129853s
Simplifying prog options: 15m21.851005812s
Extracting C: 5m13.528456891s
Simplifying C: 0s


extracting reproducer from 65 programs
testing a last program of every proc
single: executing 15 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): epoll_create1-openat$6lowpan_control-socket$tipc-bind$tipc-socket$tipc-setsockopt$TIPC_GROUP_JOIN-setsockopt$TIPC_GROUP_JOIN-sendmsg$tipc-setsockopt$TIPC_GROUP_LEAVE-bpf$MAP_CREATE_RINGBUF-openat$ppp-socket$tipc-bpf$MAP_CREATE-bpf$MAP_CREATE_CONST_STR-bpf$BPF_MAP_CONST_STR_FREEZE-bpf$MAP_UPDATE_ELEM_TAIL_CALL-close-bpf$MAP_CREATE-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$PPPIOCNEWUNIT-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN-ppoll-pselect6-syz_init_net_socket$ax25-ioctl$SIOCAX25ADDUID-bpf$PROG_LOAD-socket$netlink
detailed listing:
executing program 0:
epoll_create1(0x80000)
openat$6lowpan_control(0xffffffffffffff9c, &(0x7f0000000480), 0x2, 0x0)
r0 = socket$tipc(0x1e, 0x2, 0x0)
bind$tipc(r0, &(0x7f0000000100)=@name={0x1e, 0x2, 0x0, {{0x42}}}, 0x10)
r1 = socket$tipc(0x1e, 0x2, 0x0)
setsockopt$TIPC_GROUP_JOIN(r0, 0x10f, 0x87, &(0x7f0000000000)={0x42, 0x0, 0x3}, 0x10)
setsockopt$TIPC_GROUP_JOIN(r1, 0x10f, 0x87, &(0x7f0000000180)={0x42}, 0x10)
sendmsg$tipc(r1, &(0x7f0000000540)={&(0x7f0000000200)=@name, 0x10, 0x0}, 0x0)
setsockopt$TIPC_GROUP_LEAVE(r0, 0x10f, 0x88)
r2 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)=ANY=[@ANYBLOB="1b0000000000000000000000000004"], 0x48)
r3 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x161042, 0x0)
socket$tipc(0x1e, 0x5, 0x0)
r4 = bpf$MAP_CREATE(0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB="0a000000020000000200000004"], 0x2d)
r5 = bpf$MAP_CREATE_CONST_STR(0x0, &(0x7f0000000500)=ANY=[@ANYBLOB="0200000004000000080000000100000080"], 0x50)
bpf$BPF_MAP_CONST_STR_FREEZE(0x16, &(0x7f0000000480)={r5}, 0x4)
bpf$MAP_UPDATE_ELEM_TAIL_CALL(0x2, &(0x7f0000000000)={{r4, <r6=>0xffffffffffffffff}, &(0x7f0000000580), &(0x7f0000000300)}, 0x20)
close(0x3)
bpf$MAP_CREATE(0x0, &(0x7f0000001340)=ANY=[@ANYBLOB="0b00000008000000020000000900000001"], 0x50)
r7 = bpf$PROG_LOAD(0x5, &(0x7f0000000200)={0x11, 0x19, &(0x7f0000000600)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r6, @ANYBLOB="0000000000000000b7080000a17000007b8af8ff00000000bfa200000000000007020000f8ffffffb703000008000000b7040000000000008500000001000000b7080000000000007b8af8ff00000000b7080000000000007b8af0ff00000000bfa100000000000007010000f8ffffffbfa400000000000007040000f0ffffffb70200000800000018230000", @ANYRES32=r5, @ANYBLOB="0000000000000000b70500000800000085000000a500000095"], &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x90)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f00000001c0)={&(0x7f0000000180)='kfree\x00', r7}, 0x10)
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000001c0)={0x2, 0x2, &(0x7f0000000380)=ANY=[@ANYBLOB="85000000ae00000095"], &(0x7f00000000c0)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2a, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x9}, 0x94)
ioctl$PPPIOCNEWUNIT(r3, 0xc004743e, &(0x7f0000000140)=0x7ffd)
r8 = bpf$PROG_LOAD(0x5, &(0x7f0000000580)={0x11, 0xf, &(0x7f0000000340)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r2, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000083000000bf0900000000000055090100000000009500000800000000bf91000000000000b702000043e7b5538500000085000000b70000000000000095"], &(0x7f0000000180)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x4, '\x00', 0x0, @fallback=0x33, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80000}, 0x94)
r9 = bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f00000000c0)={&(0x7f0000000140)='kmem_cache_free\x00', r8}, 0x10)
ppoll(&(0x7f0000000080)=[{r9, 0x40}], 0x1, 0x0, 0x0, 0x0)
pselect6(0x40, &(0x7f00000001c0)={0x0, 0x2, 0x3, 0xfffffffffffffffd, 0x400000, 0x0, 0xffffffffffffff1b, 0x7a}, 0x0, &(0x7f0000000280)={0x3fc, 0x0, 0x0, 0x1, 0x0, 0x0, 0x7fffffff}, 0x0, 0x0)
r10 = syz_init_net_socket$ax25(0x3, 0x3, 0xf0)
ioctl$SIOCAX25ADDUID(r10, 0x89e1, 0x0)
bpf$PROG_LOAD(0x5, &(0x7f00000000c0)={0x11, 0xc, &(0x7f0000000780)=ANY=[@ANYBLOB="1800000000000000000000000000000085000000500000001801000020786c3100000000002020207b1af8ff00000000bfa100000000000007010000f8ffffffb702000008000000b703000005000000850000000600000095"], &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x40f00, 0x0, '\x00', 0x0, @fallback=0x1e, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
socket$netlink(0x10, 0x3, 0x7)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$rds-socket$inet6-connect$inet6-sendmmsg-syz_emit_ethernet-bpf$PROG_LOAD-ioctl$sock_SIOCGIFVLAN_GET_VLAN_VID_CMD-bpf$BPF_RAW_TRACEPOINT_OPEN-sendmsg$inet-getsockopt$inet_pktinfo-getpid-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-socket$nl_netfilter-bpf$ENABLE_STATS-bpf$MAP_CREATE-bpf$PROG_LOAD_XDP-bpf$PROG_LOAD-bpf$BPF_PROG_TEST_RUN-bind$netlink-bpf$PROG_LOAD-unshare-socket$inet6_tcp
detailed listing:
executing program 0:
socket$rds(0x15, 0x5, 0x0)
r0 = socket$inet6(0xa, 0x3, 0x1)
connect$inet6(r0, &(0x7f0000000500)={0xa, 0x0, 0xffffffff, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}, 0x50003}, 0x1c)
sendmmsg(r0, 0x0, 0x0, 0xffe0)
syz_emit_ethernet(0x138, &(0x7f0000000e00)=ANY=[@ANYBLOB="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"], 0x0)
r1 = bpf$PROG_LOAD(0x5, &(0x7f0000000080)={0x11, 0x8, &(0x7f00000038c0)=ANY=[@ANYBLOB="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&(0x7f0000000380)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x8, &(0x7f0000000000), 0x8, 0x10, &(0x7f0000000000), 0x10}, 0x2e)
ioctl$sock_SIOCGIFVLAN_GET_VLAN_VID_CMD(r0, 0x8982, &(0x7f0000000280))
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000180)={&(0x7f0000000540)='rcu_utilization\x00', r1}, 0x10)
sendmsg$inet(0xffffffffffffffff, 0x0, 0x3)
getsockopt$inet_pktinfo(0xffffffffffffffff, 0x0, 0x8, 0x0, 0x0)
getpid()
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, 0x0, 0x0)
socket$nl_netfilter(0x10, 0x3, 0xc)
bpf$ENABLE_STATS(0x20, 0x0, 0x0)
r2 = bpf$MAP_CREATE(0x0, &(0x7f0000000180)=@bloom_filter={0x1e, 0x0, 0x6, 0x7, 0x0, 0x1}, 0x50)
bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r2, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000000000007020000f8ffffffb703000008000000b704000000000000850000005900000095"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x5d}, 0x90)
r3 = bpf$PROG_LOAD(0x5, &(0x7f00000000c0)={0x16, 0xc, &(0x7f0000000440)=ANY=[], &(0x7f0000000240)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @flow_dissector, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x90)
bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f0000000000)={r3, 0x2000000, 0xe, 0x0, &(0x7f0000000200)="63eced8e46dc3f0adf33c9f7b986", 0x0, 0x8001, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x50)
bind$netlink(0xffffffffffffffff, &(0x7f0000514ff4)={0x10, 0x0, 0x25dfdbfd, 0x2ffffffff}, 0xc)
bpf$PROG_LOAD(0x5, &(0x7f0000000580)={0x0, 0xb, 0x0, 0x0, 0xadb5, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x2e, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x8000c}, 0x94)
unshare(0x6a040000)
socket$inet6_tcp(0xa, 0x1, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): unshare-bpf$PROG_LOAD-socket$inet6_sctp-getsockopt$inet_sctp6_SCTP_PR_SUPPORTED-mmap-socket$nl_audit-socket-syz_init_net_socket$nfc_llcp-getsockopt$inet_buf-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-connect$bt_l2cap-sendmmsg$inet-sendmsg$MPTCP_PM_CMD_GET_ADDR-sendmsg-socket$inet6_udplite
detailed listing:
executing program 0:
unshare(0x6a040000)
bpf$PROG_LOAD(0x5, &(0x7f000000e000)={0x1, 0x4, &(0x7f0000000080)=@framed={{0xffffffb4, 0x5, 0x0, 0x0, 0x0, 0x71, 0x10, 0x72}, [@ldst={0x5, 0x0, 0x0, 0x0, 0x4}]}, &(0x7f0000003ff6)='GPL\x00', 0x5, 0xc3, &(0x7f000000cf3d)=""/195, 0x41000, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x8, &(0x7f00000000c0), 0x8, 0x10, &(0x7f0000000000), 0x10}, 0x94)
r0 = socket$inet6_sctp(0xa, 0x5, 0x84)
getsockopt$inet_sctp6_SCTP_PR_SUPPORTED(r0, 0x84, 0x17, 0x0, &(0x7f0000000100))
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x3, 0x8031, 0xffffffffffffffff, 0x0)
socket$nl_audit(0x10, 0x3, 0x9)
r1 = socket(0x10, 0x80002, 0x0)
r2 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1)
getsockopt$inet_buf(r2, 0x118, 0x29, 0x0, &(0x7f00000003c0))
r3 = syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x0)
bind$bt_l2cap(r3, &(0x7f00000002c0)={0x1f, 0x0, @any, 0xfffa}, 0xe)
connect$bt_l2cap(r3, &(0x7f0000000080)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}, 0x7ff}, 0xe)
sendmmsg$inet(r3, &(0x7f0000001140)=[{{0x0, 0x0, &(0x7f0000000300)=[{&(0x7f0000000100)='s', 0x1}], 0x1}}], 0x1, 0x40000)
sendmsg$MPTCP_PM_CMD_GET_ADDR(r3, &(0x7f0000000840)={0x0, 0x0, &(0x7f0000000800)={&(0x7f0000000780)={0x14, 0x0, 0x1, 0x70bd2d, 0x25dfdbfb}, 0x14}, 0x1, 0x0, 0x0, 0x40090}, 0x404c044)
sendmsg(r1, &(0x7f0000001180)={0x0, 0x0, &(0x7f0000000680)=[{&(0x7f0000000040)="24000000180003041dfffd946f610500020100000005fe060c10880008000f00fff3c00e", 0x24}], 0x1}, 0x0)
socket$inet6_udplite(0xa, 0x2, 0x88)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet-socket$nl_route-sendmsg$nl_route-bpf$PROG_LOAD_XDP-bpf$PROG_LOAD-syz_genetlink_get_family_id$team-ioctl$sock_ipv6_tunnel_SIOCGETTUNNEL-ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL-socket$nl_route-socket$nl_route-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route-sendmsg$TEAM_CMD_PORT_LIST_GET-socket$nl_netfilter-sendmsg$NFT_BATCH-socket$nl_route-sendmsg$nl_route-socket$pppl2tp-ioctl$SIOCSIFMTU-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-setsockopt$inet_mreqn-setsockopt$inet_msfilter-socket$netlink-writev-writev
detailed listing:
executing program 0:
r0 = socket$inet(0x2, 0x2, 0x0)
r1 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r1, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000200)=ANY=[@ANYBLOB="3000000010000100"/20, @ANYRES32=0x0, @ANYBLOB='\x00\x00\x00\x00\x00\x00\x00\x00\b\x00\n\x00', @ANYRES32=0x0, @ANYBLOB="08001b"], 0x30}}, 0x0)
r2 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x3, &(0x7f00000000c0)=ANY=[@ANYBLOB="18000000020000000000000000"], &(0x7f0000000040)='syzkaller\x00', 0x0, 0x0, 0x0, 0x1e00, 0x21}, 0x94)
bpf$PROG_LOAD(0x5, &(0x7f0000000080)={0x16, 0xe, &(0x7f0000000940)=ANY=[@ANYBLOB="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"], &(0x7f0000000100)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @flow_dissector, 0xffffffffffffffff, 0x8, &(0x7f0000000000), 0x0, 0x10, &(0x7f0000000340)}, 0x42)
syz_genetlink_get_family_id$team(&(0x7f00000002c0), 0xffffffffffffffff)
ioctl$sock_ipv6_tunnel_SIOCGETTUNNEL(r1, 0x89f0, &(0x7f0000000300)={'syztnl0\x00', &(0x7f0000000380)={'syztnl2\x00', 0x0, 0x4, 0x6, 0xd0, 0x1de6, 0x51, @ipv4={'\x00', '\xff\xff', @private=0x7ff}, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02', 0x10, 0x1, 0x4, 0x7}})
ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, &(0x7f0000000440)={'ip_vti0\x00', &(0x7f0000000400)={'gre0\x00', 0x0, 0x1, 0x8000, 0xfffffffa, 0x510f, {{0x6, 0x4, 0x0, 0x14, 0x18, 0x66, 0x0, 0x7, 0x29, 0x0, @loopback, @private=0xa010100, {[@noop]}}}}})
r3 = socket$nl_route(0x10, 0x3, 0x0)
r4 = socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000100)={'bridge0\x00', <r5=>0x0})
sendmsg$nl_route(r3, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000200)=ANY=[@ANYBLOB="280000001c000100000000000000000007000000", @ANYRES32=r5, @ANYBLOB="4000aa000a0002"], 0x28}}, 0x0)
sendmsg$TEAM_CMD_PORT_LIST_GET(0xffffffffffffffff, &(0x7f0000000800)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000007c0)={&(0x7f0000000fc0)=ANY=[], 0x27c}, 0x1, 0x0, 0x0, 0x40000}, 0x20044005)
r6 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000200)={{0x14}, [@NFT_MSG_NEWTABLE={0x20, 0x0, 0xa, 0x301, 0x0, 0x0, {0x1}, [@NFTA_TABLE_NAME={0x9, 0x1, 'syz0\x00'}]}, @NFT_MSG_NEWCHAIN={0x2c, 0x3, 0xa, 0x201, 0x0, 0x0, {0x1}, [@NFTA_CHAIN_NAME={0x9, 0x3, 'syz0\x00'}, @NFTA_CHAIN_TABLE={0x9, 0x1, 'syz0\x00'}]}, @NFT_MSG_NEWRULE={0x28, 0x6, 0xa, 0x101, 0x0, 0x0, {0x1, 0x0, 0x9}, [@NFTA_RULE_CHAIN_ID={0x8, 0xb, 0x1, 0x0, 0x1}, @NFTA_RULE_TABLE={0x9, 0x1, 'syz0\x00'}]}], {0x14}}, 0x9c}, 0x1, 0x0, 0x0, 0x24000090}, 0x0)
r7 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r7, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x34, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x14080, 0x10000}, [@IFLA_XDP={0xc, 0x2b, 0x0, 0x1, [@IFLA_XDP_FD={0x8, 0x1, r2}]}, @IFLA_GROUP={0x8}]}, 0x34}, 0x1, 0x0, 0x0, 0x20000040}, 0x0)
r8 = socket$pppl2tp(0x18, 0x1, 0x1)
ioctl$SIOCSIFMTU(r8, 0x8922, &(0x7f0000000180)={'netdevsim0\x00', 0x7fff})
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000600)={0x3, 0x3, &(0x7f0000000000)=@framed={{0x7a, 0xa, 0x0, 0xff00, 0x0, 0x71, 0x10, 0xab}}, 0x0}, 0x94)
setsockopt$inet_mreqn(r0, 0x0, 0x23, &(0x7f0000000740)={@multicast2, @loopback}, 0xc)
setsockopt$inet_msfilter(r0, 0x0, 0x29, &(0x7f0000000000)=ANY=[@ANYBLOB="e00000027fa80a010100000004"], 0x57)
r9 = socket$netlink(0x10, 0x3, 0x0)
writev(r9, &(0x7f0000000040)=[{&(0x7f0000000380)="390000001300034700bb65e1c3e4ffff010000000100000056000000250000001900e7ff0300000007fdd411ef86ea262b576a157d00000000", 0x39}], 0x1)
writev(r9, &(0x7f00000001c0)=[{&(0x7f0000000480)="390000001300034700bb5be1c3e4feff06000000010000004500000025000000190004000400ad000200f9ffffff0006040000000000f93132", 0x39}], 0x1)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-socket$unix-connect$unix-ioctl$sock_inet_SIOCSIFPFLAGS-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-socket$netlink-sendmsg$RDMA_NLDEV_CMD_NEWLINK
detailed listing:
executing program 0:
r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000200)=ANY=[@ANYBLOB="0f000000040000000400000012"], 0x48)
r1 = socket$unix(0x1, 0x2, 0x0)
connect$unix(r1, 0x0, 0x0)
ioctl$sock_inet_SIOCSIFPFLAGS(r1, 0x8934, &(0x7f0000000000)={'ipvlan0\x00', 0x6000000})
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000300)={0x11, 0xc, &(0x7f00000001c0)=@framed={{0x18, 0x0, 0x0, 0x0, 0xfffffffe}, [@ringbuf_output={{0x18, 0x1, 0x1, 0x0, r0}, {0x7, 0x0, 0xb, 0x8, 0x0, 0x0, 0x1}, {}, {}, {}, {}, {0x7, 0x0, 0xb, 0x4, 0x0, 0x0, 0x1}, {0x85, 0x0, 0x0, 0x3}}]}, &(0x7f0000000180)='syzkaller\x00', 0x8, 0x1019, &(0x7f0000001200)=""/4121, 0x40f00, 0x0, '\x00', 0x0, 0x0, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x9}, 0x94)
r2 = socket$netlink(0x10, 0x3, 0x14)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000001200)={&(0x7f0000000300)={0x60, 0x1403, 0x1, 0x0, 0x0, "", [{{0x9, 0x2, 'syz0\x00'}, {0x8, 0x41, 'siw\x00'}, {0x14, 0x33, 'vlan1\x00'}}, {{0x9, 0x2, 'syz2\x00'}, {0x8, 0x41, 'rxe\x00'}, {0x14, 0x33, 'ipvlan0\x00'}}]}, 0x60}, 0x1, 0x0, 0x0, 0x80c9}, 0x20000000)

program crashed: KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
single: successfully extracted reproducer
found reproducer with 7 syscalls
minimizing guilty program
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-socket$unix-connect$unix-ioctl$sock_inet_SIOCSIFPFLAGS-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-socket$netlink
detailed listing:
executing program 0:
r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000200)=ANY=[@ANYBLOB="0f000000040000000400000012"], 0x48)
r1 = socket$unix(0x1, 0x2, 0x0)
connect$unix(r1, 0x0, 0x0)
ioctl$sock_inet_SIOCSIFPFLAGS(r1, 0x8934, &(0x7f0000000000)={'ipvlan0\x00', 0x6000000})
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000300)={0x11, 0xc, &(0x7f00000001c0)=@framed={{0x18, 0x0, 0x0, 0x0, 0xfffffffe}, [@ringbuf_output={{0x18, 0x1, 0x1, 0x0, r0}, {0x7, 0x0, 0xb, 0x8, 0x0, 0x0, 0x1}, {}, {}, {}, {}, {0x7, 0x0, 0xb, 0x4, 0x0, 0x0, 0x1}, {0x85, 0x0, 0x0, 0x3}}]}, &(0x7f0000000180)='syzkaller\x00', 0x8, 0x1019, &(0x7f0000001200)=""/4121, 0x40f00, 0x0, '\x00', 0x0, 0x0, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x9}, 0x94)
socket$netlink(0x10, 0x3, 0x14)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-socket$unix-connect$unix-ioctl$sock_inet_SIOCSIFPFLAGS-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-sendmsg$RDMA_NLDEV_CMD_NEWLINK
detailed listing:
executing program 0:
r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000200)=ANY=[@ANYBLOB="0f000000040000000400000012"], 0x48)
r1 = socket$unix(0x1, 0x2, 0x0)
connect$unix(r1, 0x0, 0x0)
ioctl$sock_inet_SIOCSIFPFLAGS(r1, 0x8934, &(0x7f0000000000)={'ipvlan0\x00', 0x6000000})
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000300)={0x11, 0xc, &(0x7f00000001c0)=@framed={{0x18, 0x0, 0x0, 0x0, 0xfffffffe}, [@ringbuf_output={{0x18, 0x1, 0x1, 0x0, r0}, {0x7, 0x0, 0xb, 0x8, 0x0, 0x0, 0x1}, {}, {}, {}, {}, {0x7, 0x0, 0xb, 0x4, 0x0, 0x0, 0x1}, {0x85, 0x0, 0x0, 0x3}}]}, &(0x7f0000000180)='syzkaller\x00', 0x8, 0x1019, &(0x7f0000001200)=""/4121, 0x40f00, 0x0, '\x00', 0x0, 0x0, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x9}, 0x94)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000001200)={&(0x7f0000000300)={0x60, 0x1403, 0x1, 0x0, 0x0, "", [{{0x9, 0x2, 'syz0\x00'}, {0x8, 0x41, 'siw\x00'}, {0x14, 0x33, 'vlan1\x00'}}, {{0x9, 0x2, 'syz2\x00'}, {0x8, 0x41, 'rxe\x00'}, {0x14, 0x33, 'ipvlan0\x00'}}]}, 0x60}, 0x1, 0x0, 0x0, 0x80c9}, 0x20000000)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-socket$unix-connect$unix-ioctl$sock_inet_SIOCSIFPFLAGS-socket$netlink-sendmsg$RDMA_NLDEV_CMD_NEWLINK
detailed listing:
executing program 0:
bpf$MAP_CREATE(0x0, &(0x7f0000000200)=ANY=[@ANYBLOB="0f000000040000000400000012"], 0x48)
r0 = socket$unix(0x1, 0x2, 0x0)
connect$unix(r0, 0x0, 0x0)
ioctl$sock_inet_SIOCSIFPFLAGS(r0, 0x8934, &(0x7f0000000000)={'ipvlan0\x00', 0x6000000})
r1 = socket$netlink(0x10, 0x3, 0x14)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000001200)={&(0x7f0000000300)={0x60, 0x1403, 0x1, 0x0, 0x0, "", [{{0x9, 0x2, 'syz0\x00'}, {0x8, 0x41, 'siw\x00'}, {0x14, 0x33, 'vlan1\x00'}}, {{0x9, 0x2, 'syz2\x00'}, {0x8, 0x41, 'rxe\x00'}, {0x14, 0x33, 'ipvlan0\x00'}}]}, 0x60}, 0x1, 0x0, 0x0, 0x80c9}, 0x20000000)

program crashed: KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-socket$unix-connect$unix-socket$netlink-sendmsg$RDMA_NLDEV_CMD_NEWLINK
detailed listing:
executing program 0:
bpf$MAP_CREATE(0x0, &(0x7f0000000200)=ANY=[@ANYBLOB="0f000000040000000400000012"], 0x48)
r0 = socket$unix(0x1, 0x2, 0x0)
connect$unix(r0, 0x0, 0x0)
r1 = socket$netlink(0x10, 0x3, 0x14)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000001200)={&(0x7f0000000300)={0x60, 0x1403, 0x1, 0x0, 0x0, "", [{{0x9, 0x2, 'syz0\x00'}, {0x8, 0x41, 'siw\x00'}, {0x14, 0x33, 'vlan1\x00'}}, {{0x9, 0x2, 'syz2\x00'}, {0x8, 0x41, 'rxe\x00'}, {0x14, 0x33, 'ipvlan0\x00'}}]}, 0x60}, 0x1, 0x0, 0x0, 0x80c9}, 0x20000000)

program crashed: KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-socket$unix-socket$netlink-sendmsg$RDMA_NLDEV_CMD_NEWLINK
detailed listing:
executing program 0:
bpf$MAP_CREATE(0x0, &(0x7f0000000200)=ANY=[@ANYBLOB="0f000000040000000400000012"], 0x48)
socket$unix(0x1, 0x2, 0x0)
r0 = socket$netlink(0x10, 0x3, 0x14)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000001200)={&(0x7f0000000300)={0x60, 0x1403, 0x1, 0x0, 0x0, "", [{{0x9, 0x2, 'syz0\x00'}, {0x8, 0x41, 'siw\x00'}, {0x14, 0x33, 'vlan1\x00'}}, {{0x9, 0x2, 'syz2\x00'}, {0x8, 0x41, 'rxe\x00'}, {0x14, 0x33, 'ipvlan0\x00'}}]}, 0x60}, 0x1, 0x0, 0x0, 0x80c9}, 0x20000000)

program crashed: KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-socket$netlink-sendmsg$RDMA_NLDEV_CMD_NEWLINK
detailed listing:
executing program 0:
bpf$MAP_CREATE(0x0, &(0x7f0000000200)=ANY=[@ANYBLOB="0f000000040000000400000012"], 0x48)
r0 = socket$netlink(0x10, 0x3, 0x14)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000001200)={&(0x7f0000000300)={0x60, 0x1403, 0x1, 0x0, 0x0, "", [{{0x9, 0x2, 'syz0\x00'}, {0x8, 0x41, 'siw\x00'}, {0x14, 0x33, 'vlan1\x00'}}, {{0x9, 0x2, 'syz2\x00'}, {0x8, 0x41, 'rxe\x00'}, {0x14, 0x33, 'ipvlan0\x00'}}]}, 0x60}, 0x1, 0x0, 0x0, 0x80c9}, 0x20000000)

program crashed: KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$netlink-sendmsg$RDMA_NLDEV_CMD_NEWLINK
detailed listing:
executing program 0:
r0 = socket$netlink(0x10, 0x3, 0x14)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000001200)={&(0x7f0000000300)={0x60, 0x1403, 0x1, 0x0, 0x0, "", [{{0x9, 0x2, 'syz0\x00'}, {0x8, 0x41, 'siw\x00'}, {0x14, 0x33, 'vlan1\x00'}}, {{0x9, 0x2, 'syz2\x00'}, {0x8, 0x41, 'rxe\x00'}, {0x14, 0x33, 'ipvlan0\x00'}}]}, 0x60}, 0x1, 0x0, 0x0, 0x80c9}, 0x20000000)

program crashed: KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$netlink-sendmsg$RDMA_NLDEV_CMD_NEWLINK
detailed listing:
executing program 0:
r0 = socket$netlink(0x10, 0x3, 0x14)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(r0, 0x0, 0x20000000)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$netlink-sendmsg$RDMA_NLDEV_CMD_NEWLINK
detailed listing:
executing program 0:
r0 = socket$netlink(0x10, 0x3, 0x14)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(r0, &(0x7f00000002c0)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x80c9}, 0x20000000)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$netlink-sendmsg$RDMA_NLDEV_CMD_NEWLINK
detailed listing:
executing program 0:
r0 = socket$netlink(0x10, 0x3, 0x14)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000001200)={0x0}, 0x1, 0x0, 0x0, 0x80c9}, 0x20000000)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$netlink-sendmsg$RDMA_NLDEV_CMD_NEWLINK
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
simplifying guilty program options
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$netlink-sendmsg$RDMA_NLDEV_CMD_NEWLINK
detailed listing:
executing program 0:
r0 = socket$netlink(0x10, 0x3, 0x14)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000001200)={&(0x7f0000000300)={0x60, 0x1403, 0x1, 0x0, 0x0, "", [{{0x9, 0x2, 'syz0\x00'}, {0x8, 0x41, 'siw\x00'}, {0x14, 0x33, 'vlan1\x00'}}, {{0x9, 0x2, 'syz2\x00'}, {0x8, 0x41, 'rxe\x00'}, {0x14, 0x33, 'ipvlan0\x00'}}]}, 0x60}, 0x1, 0x0, 0x0, 0x80c9}, 0x20000000)

program crashed: KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$netlink-sendmsg$RDMA_NLDEV_CMD_NEWLINK
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$netlink-sendmsg$RDMA_NLDEV_CMD_NEWLINK
detailed listing:
executing program 0:
r0 = socket$netlink(0x10, 0x3, 0x14)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000001200)={&(0x7f0000000300)={0x60, 0x1403, 0x1, 0x0, 0x0, "", [{{0x9, 0x2, 'syz0\x00'}, {0x8, 0x41, 'siw\x00'}, {0x14, 0x33, 'vlan1\x00'}}, {{0x9, 0x2, 'syz2\x00'}, {0x8, 0x41, 'rxe\x00'}, {0x14, 0x33, 'ipvlan0\x00'}}]}, 0x60}, 0x1, 0x0, 0x0, 0x80c9}, 0x20000000)

program did not crash
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$netlink-sendmsg$RDMA_NLDEV_CMD_NEWLINK
detailed listing:
executing program 0:
r0 = socket$netlink(0x10, 0x3, 0x14)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000001200)={&(0x7f0000000300)={0x60, 0x1403, 0x1, 0x0, 0x0, "", [{{0x9, 0x2, 'syz0\x00'}, {0x8, 0x41, 'siw\x00'}, {0x14, 0x33, 'vlan1\x00'}}, {{0x9, 0x2, 'syz2\x00'}, {0x8, 0x41, 'rxe\x00'}, {0x14, 0x33, 'ipvlan0\x00'}}]}, 0x60}, 0x1, 0x0, 0x0, 0x80c9}, 0x20000000)

program crashed: KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$netlink-sendmsg$RDMA_NLDEV_CMD_NEWLINK
detailed listing:
executing program 0:
r0 = socket$netlink(0x10, 0x3, 0x14)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000001200)={&(0x7f0000000300)={0x60, 0x1403, 0x1, 0x0, 0x0, "", [{{0x9, 0x2, 'syz0\x00'}, {0x8, 0x41, 'siw\x00'}, {0x14, 0x33, 'vlan1\x00'}}, {{0x9, 0x2, 'syz2\x00'}, {0x8, 0x41, 'rxe\x00'}, {0x14, 0x33, 'ipvlan0\x00'}}]}, 0x60}, 0x1, 0x0, 0x0, 0x80c9}, 0x20000000)

program crashed: KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$netlink-sendmsg$RDMA_NLDEV_CMD_NEWLINK
detailed listing:
executing program 0:
r0 = socket$netlink(0x10, 0x3, 0x14)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000001200)={&(0x7f0000000300)={0x60, 0x1403, 0x1, 0x0, 0x0, "", [{{0x9, 0x2, 'syz0\x00'}, {0x8, 0x41, 'siw\x00'}, {0x14, 0x33, 'vlan1\x00'}}, {{0x9, 0x2, 'syz2\x00'}, {0x8, 0x41, 'rxe\x00'}, {0x14, 0x33, 'ipvlan0\x00'}}]}, 0x60}, 0x1, 0x0, 0x0, 0x80c9}, 0x20000000)

program crashed: KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
validation run: crashed=true
reproducing took 1h52m2.295959549s
repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-use-after-free in __ethtool_get_link_ksettings+0x5e/0x170 net/ethtool/ioctl.c:443
Read of size 8 at addr ffff8880317c62e8 by task kworker/0:0/9

CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Workqueue: events smc_ib_port_event_work
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xca/0x240 mm/kasan/report.c:482
 kasan_report+0x118/0x150 mm/kasan/report.c:595
 __ethtool_get_link_ksettings+0x5e/0x170 net/ethtool/ioctl.c:443
 ib_get_eth_speed+0x15e/0x7b0 drivers/infiniband/core/verbs.c:1996
 rxe_query_port+0x93/0x3b0 drivers/infiniband/sw/rxe/rxe_verbs.c:62
 __ib_query_port drivers/infiniband/core/device.c:2148 [inline]
 ib_query_port+0x170/0x830 drivers/infiniband/core/device.c:2180
 smc_ib_remember_port_attr net/smc/smc_ib.c:364 [inline]
 smc_ib_port_event_work+0x15a/0x940 net/smc/smc_ib.c:388
 process_one_work kernel/workqueue.c:3257 [inline]
 process_scheduled_works+0xad1/0x1770 kernel/workqueue.c:3340
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3421
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x599/0xb30 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>

Allocated by task 12574:
 kasan_save_stack mm/kasan/common.c:56 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:77
 poison_kmalloc_redzone mm/kasan/common.c:400 [inline]
 __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:417
 kasan_kmalloc include/linux/kasan.h:262 [inline]
 __do_kmalloc_node mm/slub.c:5652 [inline]
 __kvmalloc_node_noprof+0x5c9/0x910 mm/slub.c:7128
 alloc_netdev_mqs+0xa6/0x11b0 net/core/dev.c:11997
 rtnl_create_link+0x31f/0xcf0 net/core/rtnetlink.c:3648
 rtnl_newlink_create+0x25c/0xb00 net/core/rtnetlink.c:3830
 __rtnl_newlink net/core/rtnetlink.c:3957 [inline]
 rtnl_newlink+0x16e7/0x1c90 net/core/rtnetlink.c:4072
 rtnetlink_rcv_msg+0x7cf/0xb70 net/core/rtnetlink.c:6958
 netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2550
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1894
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg+0x21c/0x270 net/socket.c:733
 __sys_sendto+0x3bd/0x520 net/socket.c:2222
 __do_sys_sendto net/socket.c:2229 [inline]
 __se_sys_sendto net/socket.c:2225 [inline]
 __x64_sys_sendto+0xde/0x100 net/socket.c:2225
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 9441:
 kasan_save_stack mm/kasan/common.c:56 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:77
 __kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:587
 kasan_save_free_info mm/kasan/kasan.h:406 [inline]
 poison_slab_object mm/kasan/common.c:252 [inline]
 __kasan_slab_free+0x5c/0x80 mm/kasan/common.c:284
 kasan_slab_free include/linux/kasan.h:234 [inline]
 slab_free_hook mm/slub.c:2540 [inline]
 slab_free mm/slub.c:6663 [inline]
 kfree+0x1c0/0x660 mm/slub.c:6871
 device_release+0x9e/0x1d0 drivers/base/core.c:-1
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x228/0x480 lib/kobject.c:737
 netdev_run_todo+0xd2c/0xea0 net/core/dev.c:11698
 default_device_exit_batch+0x969/0x9e0 net/core/dev.c:13037
 ops_exit_list net/core/net_namespace.c:205 [inline]
 ops_undo_list+0x525/0x990 net/core/net_namespace.c:252
 cleanup_net+0x4d8/0x7a0 net/core/net_namespace.c:696
 process_one_work kernel/workqueue.c:3257 [inline]
 process_scheduled_works+0xad1/0x1770 kernel/workqueue.c:3340
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3421
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x599/0xb30 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246

The buggy address belongs to the object at ffff8880317c6000
 which belongs to the cache kmalloc-cg-4k of size 4096
The buggy address is located 744 bytes inside of
 freed 4096-byte region [ffff8880317c6000, ffff8880317c7000)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x317c0
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
memcg:ffff888027582481
anon flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801a030500 0000000000000000 dead000000000001
raw: 0000000000000000 0000000000040004 00000000f5000000 ffff888027582481
head: 00fff00000000040 ffff88801a030500 0000000000000000 dead000000000001
head: 0000000000000000 0000000000040004 00000000f5000000 ffff888027582481
head: 00fff00000000003 ffffea0000c5f001 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 6022, tgid 6022 (cmp), ts 151863953854, free_ts 151834117058
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x234/0x290 mm/page_alloc.c:1845
 prep_new_page mm/page_alloc.c:1853 [inline]
 get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3879
 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5183
 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2416
 alloc_slab_page mm/slub.c:3075 [inline]
 allocate_slab+0x86/0x3b0 mm/slub.c:3248
 new_slab mm/slub.c:3302 [inline]
 ___slab_alloc+0xf2b/0x1960 mm/slub.c:4651
 __slab_alloc+0x65/0x100 mm/slub.c:4774
 __slab_alloc_node mm/slub.c:4850 [inline]
 slab_alloc_node mm/slub.c:5246 [inline]
 __do_kmalloc_node mm/slub.c:5651 [inline]
 __kvmalloc_node_noprof+0x6b6/0x910 mm/slub.c:7128
 seq_buf_alloc fs/seq_file.c:38 [inline]
 seq_read_iter+0x202/0xe20 fs/seq_file.c:210
 proc_reg_read_iter+0x1b7/0x280 fs/proc/inode.c:299
 new_sync_read fs/read_write.c:491 [inline]
 vfs_read+0x55a/0xa30 fs/read_write.c:572
 ksys_read+0x145/0x250 fs/read_write.c:715
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 6022 tgid 6022 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1394 [inline]
 __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2901
 __slab_free+0x21b/0x2a0 mm/slub.c:5999
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x97/0x100 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352
 kasan_slab_alloc include/linux/kasan.h:252 [inline]
 slab_post_alloc_hook mm/slub.c:4948 [inline]
 slab_alloc_node mm/slub.c:5258 [inline]
 kmem_cache_alloc_noprof+0x367/0x6f0 mm/slub.c:5265
 ptlock_alloc+0x20/0x70 mm/memory.c:7332
 ptlock_init include/linux/mm.h:3034 [inline]
 pagetable_pte_ctor include/linux/mm.h:3088 [inline]
 __pte_alloc_one_noprof include/asm-generic/pgalloc.h:78 [inline]
 pte_alloc_one+0x7a/0x310 arch/x86/mm/pgtable.c:18
 __do_fault+0xd1/0x390 mm/memory.c:5276
 do_cow_fault mm/memory.c:5746 [inline]
 do_fault mm/memory.c:5852 [inline]
 do_pte_missing mm/memory.c:4362 [inline]
 handle_pte_fault mm/memory.c:6234 [inline]
 __handle_mm_fault+0x18fd/0x5420 mm/memory.c:6366
 handle_mm_fault+0x40a/0x8e0 mm/memory.c:6535
 do_user_addr_fault+0x764/0x1380 arch/x86/mm/fault.c:1387
 handle_page_fault arch/x86/mm/fault.c:1476 [inline]
 exc_page_fault+0x82/0x100 arch/x86/mm/fault.c:1532
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618

Memory state around the buggy address:
 ffff8880317c6180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8880317c6200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8880317c6280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                          ^
 ffff8880317c6300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8880317c6380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================

final repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-use-after-free in __ethtool_get_link_ksettings+0x5e/0x170 net/ethtool/ioctl.c:443
Read of size 8 at addr ffff8880317c62e8 by task kworker/0:0/9

CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Workqueue: events smc_ib_port_event_work
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xca/0x240 mm/kasan/report.c:482
 kasan_report+0x118/0x150 mm/kasan/report.c:595
 __ethtool_get_link_ksettings+0x5e/0x170 net/ethtool/ioctl.c:443
 ib_get_eth_speed+0x15e/0x7b0 drivers/infiniband/core/verbs.c:1996
 rxe_query_port+0x93/0x3b0 drivers/infiniband/sw/rxe/rxe_verbs.c:62
 __ib_query_port drivers/infiniband/core/device.c:2148 [inline]
 ib_query_port+0x170/0x830 drivers/infiniband/core/device.c:2180
 smc_ib_remember_port_attr net/smc/smc_ib.c:364 [inline]
 smc_ib_port_event_work+0x15a/0x940 net/smc/smc_ib.c:388
 process_one_work kernel/workqueue.c:3257 [inline]
 process_scheduled_works+0xad1/0x1770 kernel/workqueue.c:3340
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3421
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x599/0xb30 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>

Allocated by task 12574:
 kasan_save_stack mm/kasan/common.c:56 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:77
 poison_kmalloc_redzone mm/kasan/common.c:400 [inline]
 __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:417
 kasan_kmalloc include/linux/kasan.h:262 [inline]
 __do_kmalloc_node mm/slub.c:5652 [inline]
 __kvmalloc_node_noprof+0x5c9/0x910 mm/slub.c:7128
 alloc_netdev_mqs+0xa6/0x11b0 net/core/dev.c:11997
 rtnl_create_link+0x31f/0xcf0 net/core/rtnetlink.c:3648
 rtnl_newlink_create+0x25c/0xb00 net/core/rtnetlink.c:3830
 __rtnl_newlink net/core/rtnetlink.c:3957 [inline]
 rtnl_newlink+0x16e7/0x1c90 net/core/rtnetlink.c:4072
 rtnetlink_rcv_msg+0x7cf/0xb70 net/core/rtnetlink.c:6958
 netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2550
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1894
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg+0x21c/0x270 net/socket.c:733
 __sys_sendto+0x3bd/0x520 net/socket.c:2222
 __do_sys_sendto net/socket.c:2229 [inline]
 __se_sys_sendto net/socket.c:2225 [inline]
 __x64_sys_sendto+0xde/0x100 net/socket.c:2225
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 9441:
 kasan_save_stack mm/kasan/common.c:56 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:77
 __kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:587
 kasan_save_free_info mm/kasan/kasan.h:406 [inline]
 poison_slab_object mm/kasan/common.c:252 [inline]
 __kasan_slab_free+0x5c/0x80 mm/kasan/common.c:284
 kasan_slab_free include/linux/kasan.h:234 [inline]
 slab_free_hook mm/slub.c:2540 [inline]
 slab_free mm/slub.c:6663 [inline]
 kfree+0x1c0/0x660 mm/slub.c:6871
 device_release+0x9e/0x1d0 drivers/base/core.c:-1
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x228/0x480 lib/kobject.c:737
 netdev_run_todo+0xd2c/0xea0 net/core/dev.c:11698
 default_device_exit_batch+0x969/0x9e0 net/core/dev.c:13037
 ops_exit_list net/core/net_namespace.c:205 [inline]
 ops_undo_list+0x525/0x990 net/core/net_namespace.c:252
 cleanup_net+0x4d8/0x7a0 net/core/net_namespace.c:696
 process_one_work kernel/workqueue.c:3257 [inline]
 process_scheduled_works+0xad1/0x1770 kernel/workqueue.c:3340
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3421
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x599/0xb30 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246

The buggy address belongs to the object at ffff8880317c6000
 which belongs to the cache kmalloc-cg-4k of size 4096
The buggy address is located 744 bytes inside of
 freed 4096-byte region [ffff8880317c6000, ffff8880317c7000)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x317c0
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
memcg:ffff888027582481
anon flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801a030500 0000000000000000 dead000000000001
raw: 0000000000000000 0000000000040004 00000000f5000000 ffff888027582481
head: 00fff00000000040 ffff88801a030500 0000000000000000 dead000000000001
head: 0000000000000000 0000000000040004 00000000f5000000 ffff888027582481
head: 00fff00000000003 ffffea0000c5f001 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 6022, tgid 6022 (cmp), ts 151863953854, free_ts 151834117058
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x234/0x290 mm/page_alloc.c:1845
 prep_new_page mm/page_alloc.c:1853 [inline]
 get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3879
 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5183
 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2416
 alloc_slab_page mm/slub.c:3075 [inline]
 allocate_slab+0x86/0x3b0 mm/slub.c:3248
 new_slab mm/slub.c:3302 [inline]
 ___slab_alloc+0xf2b/0x1960 mm/slub.c:4651
 __slab_alloc+0x65/0x100 mm/slub.c:4774
 __slab_alloc_node mm/slub.c:4850 [inline]
 slab_alloc_node mm/slub.c:5246 [inline]
 __do_kmalloc_node mm/slub.c:5651 [inline]
 __kvmalloc_node_noprof+0x6b6/0x910 mm/slub.c:7128
 seq_buf_alloc fs/seq_file.c:38 [inline]
 seq_read_iter+0x202/0xe20 fs/seq_file.c:210
 proc_reg_read_iter+0x1b7/0x280 fs/proc/inode.c:299
 new_sync_read fs/read_write.c:491 [inline]
 vfs_read+0x55a/0xa30 fs/read_write.c:572
 ksys_read+0x145/0x250 fs/read_write.c:715
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 6022 tgid 6022 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1394 [inline]
 __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2901
 __slab_free+0x21b/0x2a0 mm/slub.c:5999
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x97/0x100 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352
 kasan_slab_alloc include/linux/kasan.h:252 [inline]
 slab_post_alloc_hook mm/slub.c:4948 [inline]
 slab_alloc_node mm/slub.c:5258 [inline]
 kmem_cache_alloc_noprof+0x367/0x6f0 mm/slub.c:5265
 ptlock_alloc+0x20/0x70 mm/memory.c:7332
 ptlock_init include/linux/mm.h:3034 [inline]
 pagetable_pte_ctor include/linux/mm.h:3088 [inline]
 __pte_alloc_one_noprof include/asm-generic/pgalloc.h:78 [inline]
 pte_alloc_one+0x7a/0x310 arch/x86/mm/pgtable.c:18
 __do_fault+0xd1/0x390 mm/memory.c:5276
 do_cow_fault mm/memory.c:5746 [inline]
 do_fault mm/memory.c:5852 [inline]
 do_pte_missing mm/memory.c:4362 [inline]
 handle_pte_fault mm/memory.c:6234 [inline]
 __handle_mm_fault+0x18fd/0x5420 mm/memory.c:6366
 handle_mm_fault+0x40a/0x8e0 mm/memory.c:6535
 do_user_addr_fault+0x764/0x1380 arch/x86/mm/fault.c:1387
 handle_page_fault arch/x86/mm/fault.c:1476 [inline]
 exc_page_fault+0x82/0x100 arch/x86/mm/fault.c:1532
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618

Memory state around the buggy address:
 ffff8880317c6180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8880317c6200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8880317c6280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                          ^
 ffff8880317c6300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8880317c6380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================