[ 286.971064][ T1859] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 287.039024][ T1859] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 297.069424][ T1859] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. Warning: Permanently added '[localhost]:64162' (ECDSA) to the list of known hosts. 1970/01/01 00:05:25 fuzzer started 1970/01/01 00:05:37 dialing manager at localhost:46495 [ 341.683355][ T2038] cgroup: Unknown subsys name 'net' [ 342.789955][ T2038] cgroup: Unknown subsys name 'rlimit' 1970/01/01 00:05:42 syscalls: 2870 1970/01/01 00:05:42 code coverage: enabled 1970/01/01 00:05:42 comparison tracing: enabled 1970/01/01 00:05:42 extra coverage: enabled 1970/01/01 00:05:42 delay kcov mmap: mmap returned an invalid pointer 1970/01/01 00:05:42 setuid sandbox: enabled 1970/01/01 00:05:42 namespace sandbox: enabled 1970/01/01 00:05:42 Android sandbox: /sys/fs/selinux/policy does not exist 1970/01/01 00:05:42 fault injection: enabled 1970/01/01 00:05:42 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 1970/01/01 00:05:42 net packet injection: enabled 1970/01/01 00:05:42 net device setup: enabled 1970/01/01 00:05:42 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 1970/01/01 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1970/01/01 00:15:16 fetching corpus: 12841, signal 255806/258394 (executing program) 1970/01/01 00:15:17 fetching corpus: 12873, signal 255951/258394 (executing program) 1970/01/01 00:15:17 fetching corpus: 12873, signal 255951/258394 (executing program) 1970/01/01 00:17:11 starting 2 fuzzer processes 00:17:12 executing program 0: r0 = openat$sndtimer(0xffffffffffffff9c, &(0x7f00000000c0), 0x0) ioctl$SNDRV_TIMER_IOCTL_PARAMS(r0, 0x80e85411, 0x0) 00:17:12 executing program 1: r0 = syz_clone(0x0, 0x0, 0x0, 0x0, 0x0, 0x0) ptrace(0x10, r0) read$eventfd(0xffffffffffffffff, 0x0, 0x0) waitid(0x1, r0, 0x0, 0x8, 0x0) [ 1056.886422][ T2050] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 1057.035929][ T2050] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 1059.011578][ T2051] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 1059.197453][ T2051] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 1068.364285][ T2050] device hsr_slave_0 entered promiscuous mode [ 1068.392001][ T2050] device hsr_slave_1 entered promiscuous mode [ 1070.283637][ T2051] device hsr_slave_0 entered promiscuous mode [ 1070.309333][ T2051] device hsr_slave_1 entered promiscuous mode [ 1070.360138][ T2051] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 1070.363173][ T2051] Cannot create hsr debugfs directory [ 1077.282731][ T2050] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 1077.561992][ T2050] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 1078.040358][ T2050] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 1078.401384][ T2050] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 1079.232640][ T2051] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 1079.472882][ T2051] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 1079.726712][ T2051] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 1080.008272][ T2051] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 1093.056668][ T2050] 8021q: adding VLAN 0 to HW filter on device bond0 [ 1094.049960][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 1094.182938][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1096.951825][ T2051] 8021q: adding VLAN 0 to HW filter on device bond0 [ 1098.942392][ T1793] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 1099.063408][ T1793] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1105.656576][ T2156] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 1105.701278][ T2156] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1106.094913][ T2676] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 1106.180886][ T2676] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1106.562093][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 1107.260337][ T82] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 1108.118976][ T1793] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 1108.217109][ T1793] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1108.594278][ T2676] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 1108.662446][ T2676] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1108.983342][ T2050] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 1111.161093][ T2675] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 1111.248163][ T2675] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1111.283325][ T2675] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 1111.312321][ T2675] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 1111.341960][ T2675] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 1111.392935][ T2675] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1111.689445][ T2675] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 1112.109848][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 1113.204203][ T2677] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 1113.274370][ T2677] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1113.484293][ T1793] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 1113.573904][ T1793] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1113.830321][ T2051] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 1115.363872][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 1115.379884][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 1134.653484][ T2677] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 1134.741041][ T2677] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 1139.028912][ T2677] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 1139.211101][ T2677] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 1145.491962][ T2676] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 1145.581422][ T2676] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 1145.732750][ T2676] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 1145.837602][ T2676] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 1145.957388][ T2050] device veth0_vlan entered promiscuous mode [ 1146.751606][ T2050] device veth1_vlan entered promiscuous mode [ 1148.452104][ T2050] device veth0_macvtap entered promiscuous mode [ 1148.768620][ T2677] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 1148.827488][ T2677] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 1148.934332][ T2050] device veth1_macvtap entered promiscuous mode [ 1149.153985][ T2677] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 1150.778614][ T2050] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 1150.782185][ T2050] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 1150.783944][ T2050] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 1150.821089][ T2050] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 1150.998907][ T2677] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 1151.072393][ T2677] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 1151.118778][ T2677] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 1151.161029][ T2677] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 1152.969470][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 1153.023410][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 1153.154502][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 1153.173444][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 1153.460763][ T2051] device veth0_vlan entered promiscuous mode [ 1154.158635][ T2051] device veth1_vlan entered promiscuous mode [ 1156.161731][ T830] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 1156.232106][ T830] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 1156.482942][ T2051] device veth0_macvtap entered promiscuous mode [ 1156.942452][ T2051] device veth1_macvtap entered promiscuous mode [ 1157.296899][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 1158.627676][ T2051] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 1158.630427][ T2051] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 1158.632235][ T2051] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 1158.633890][ T2051] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 1159.195990][ T2675] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 1159.280431][ T2675] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 1159.343958][ T2675] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 1159.412394][ T2675] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 00:19:20 executing program 0: r0 = openat$sndtimer(0xffffffffffffff9c, &(0x7f00000000c0), 0x0) ioctl$SNDRV_TIMER_IOCTL_PARAMS(r0, 0x80e85411, 0x0) 00:19:26 executing program 0: r0 = openat$sndtimer(0xffffffffffffff9c, &(0x7f00000000c0), 0x0) ioctl$SNDRV_TIMER_IOCTL_PARAMS(r0, 0x80e85411, 0x0) 00:19:27 executing program 1: r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0xe66e1, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x0) write$RDMA_USER_CM_CMD_INIT_QP_ATTR(r1, &(0x7f0000000180)={0xb, 0x10, 0xfa00, {0x0}}, 0x18) write$P9_RREADLINK(r0, 0x0, 0x10) r2 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x0) write$RDMA_USER_CM_CMD_INIT_QP_ATTR(r2, &(0x7f0000000180)={0xb, 0x10, 0xfa00, {0x0}}, 0x18) 00:19:30 executing program 0: r0 = openat$sndtimer(0xffffffffffffff9c, &(0x7f00000000c0), 0x0) ioctl$SNDRV_TIMER_IOCTL_PARAMS(r0, 0x80e85411, 0x0) 00:19:33 executing program 1: r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0xe66e1, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x0) write$RDMA_USER_CM_CMD_INIT_QP_ATTR(r1, &(0x7f0000000180)={0xb, 0x10, 0xfa00, {0x0}}, 0x18) write$P9_RREADLINK(r0, 0x0, 0x10) r2 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x0) write$RDMA_USER_CM_CMD_INIT_QP_ATTR(r2, &(0x7f0000000180)={0xb, 0x10, 0xfa00, {0x0}}, 0x18) 00:19:34 executing program 0: r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0xe66e1, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x0) write$RDMA_USER_CM_CMD_INIT_QP_ATTR(r1, &(0x7f0000000180)={0xb, 0x10, 0xfa00, {0x0}}, 0x18) write$P9_RREADLINK(r0, 0x0, 0x10) r2 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x0) write$RDMA_USER_CM_CMD_INIT_QP_ATTR(r2, &(0x7f0000000180)={0xb, 0x10, 0xfa00, {0x0}}, 0x18) 00:19:37 executing program 0: r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0xe66e1, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x0) write$RDMA_USER_CM_CMD_INIT_QP_ATTR(r1, &(0x7f0000000180)={0xb, 0x10, 0xfa00, {0x0}}, 0x18) write$P9_RREADLINK(r0, 0x0, 0x10) r2 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x0) write$RDMA_USER_CM_CMD_INIT_QP_ATTR(r2, &(0x7f0000000180)={0xb, 0x10, 0xfa00, {0x0}}, 0x18) 00:19:38 executing program 1: r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0xe66e1, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x0) write$RDMA_USER_CM_CMD_INIT_QP_ATTR(r1, &(0x7f0000000180)={0xb, 0x10, 0xfa00, {0x0}}, 0x18) write$P9_RREADLINK(r0, 0x0, 0x10) r2 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x0) write$RDMA_USER_CM_CMD_INIT_QP_ATTR(r2, &(0x7f0000000180)={0xb, 0x10, 0xfa00, {0x0}}, 0x18) 00:19:41 executing program 0: r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0xe66e1, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x0) write$RDMA_USER_CM_CMD_INIT_QP_ATTR(r1, &(0x7f0000000180)={0xb, 0x10, 0xfa00, {0x0}}, 0x18) write$P9_RREADLINK(r0, 0x0, 0x10) r2 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x0) write$RDMA_USER_CM_CMD_INIT_QP_ATTR(r2, &(0x7f0000000180)={0xb, 0x10, 0xfa00, {0x0}}, 0x18) 00:19:41 executing program 1: r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0xe66e1, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x0) write$RDMA_USER_CM_CMD_INIT_QP_ATTR(r1, &(0x7f0000000180)={0xb, 0x10, 0xfa00, {0x0}}, 0x18) write$P9_RREADLINK(r0, 0x0, 0x10) r2 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x0) write$RDMA_USER_CM_CMD_INIT_QP_ATTR(r2, &(0x7f0000000180)={0xb, 0x10, 0xfa00, {0x0}}, 0x18) [ 1185.601984][ T2749] ------------[ cut here ]------------ [ 1185.602058][ T2025] ================================================================== [ 1185.602417][ T2025] BUG: KASAN: null-ptr-deref in __lock_acquire+0x336/0x333e [ 1185.602987][ T2025] Read of size 1 at addr 00000000000000b8 by task syz-fuzzer/2025 [ 1185.603475][ T2025] [ 1185.604046][ T2749] DEBUG_LOCKS_WARN_ON(1) [ 1185.605831][ T2749] WARNING: CPU: 0 PID: 2749 at kernel/locking/lockdep.c:203 __lock_acquire+0xcda/0x333e [ 1185.605828][ T2025] CPU: 1 PID: 2025 Comm: syz-fuzzer Not tainted 5.17.0-rc1-syzkaller-00002-g0966d385830d #0 [ 1185.607951][ T2749] Modules linked in: [ 1185.609587][ T2025] Hardware name: riscv-virtio,qemu (DT) [ 1185.611430][ T2025] Call Trace: [ 1185.613375][ T2749] [ 1185.614125][ T2749] CPU: 0 PID: 2749 Comm: syz-fuzzer Not tainted 5.17.0-rc1-syzkaller-00002-g0966d385830d #0 [ 1185.614626][ T2025] [] dump_backtrace+0x2e/0x3c [ 1185.616528][ T2749] Hardware name: riscv-virtio,qemu (DT) [ 1185.617944][ T2025] [] show_stack+0x34/0x40 [ 1185.619321][ T2749] epc : __lock_acquire+0xcda/0x333e [ 1185.620837][ T2749] ra : __lock_acquire+0xcda/0x333e [ 1185.622042][ T2025] [] dump_stack_lvl+0xe4/0x150 [ 1185.623061][ T2749] epc : ffffffff80112f5c ra : ffffffff80112f5c sp : ffffaf80243773a0 [ 1185.624555][ T2025] [] kasan_report+0x1de/0x1e0 [ 1185.625609][ T2749] gp : ffffffff85863ac0 tp : ffffaf800d9d0000 t0 : ffffffff84a99ee0 [ 1185.625860][ T2749] t1 : fffff5ef0b53910c t2 : 0000000000000000 s0 : ffffaf8024377500 [ 1185.627042][ T2025] [] __asan_load1+0x54/0x6c [ 1185.628884][ T2749] s1 : 0000000000001fff a0 : 0000000000000016 a1 : 00000000000f0000 [ 1185.629752][ T2749] a2 : 0000000000000002 a3 : ffffffff8012252a a4 : 6801c62767056c00 [ 1185.631549][ T2749] a5 : 6801c62767056c00 a6 : 0000000000f00000 a7 : ffffaf805a9c8863 [ 1185.633146][ T2025] [] __lock_acquire+0x336/0x333e [ 1185.634919][ T2749] s2 : 0000000000000085 s3 : ffffffff858c4cb0 s4 : 0000000000000000 [ 1185.636540][ T2025] [] lock_acquire.part.0+0x1d0/0x424 [ 1185.638188][ T2749] s5 : ffffaf800d9d0a18 s6 : ffffffff858c4ca0 s7 : 0000000000040000 [ 1185.639767][ T2025] [] lock_acquire+0x54/0x6a [ 1185.641673][ T2749] s8 : ffffaf800d9d0a48 s9 : ffffffff8046efb6 s10: 0000000000040085 [ 1185.643070][ T2749] s11: ffffaf800d9d0000 t3 : 0000000000000042 t4 : fffff5ef0b53910c [ 1185.644385][ T2025] [] vtime_task_switch_generic+0x50/0x1f4 [ 1185.644867][ T2025] [] finish_task_switch.isra.0+0x292/0x420 [ 1185.647914][ T2749] t5 : fffff5ef0b53910d t6 : ffffffff86bda9c6 [ 1185.649001][ T2749] status: 0000000000000100 badaddr: 0000000000000000 cause: 0000000000000003 [ 1185.650143][ T2025] [] __schedule+0x58e/0x118e [ 1185.652384][ T2749] [] lock_acquire.part.0+0x1d0/0x424 [ 1185.653512][ T2025] [] schedule+0x74/0x14c [ 1185.654998][ T2749] [] lock_acquire+0x54/0x6a [ 1185.656310][ T2025] [] futex_wait_queue+0xc4/0x1d4 [ 1185.657378][ T2749] [] fs_reclaim_acquire+0xb4/0xda [ 1185.658572][ T2025] [] futex_wait+0x174/0x2f8 [ 1185.659623][ T2749] [] __kmalloc_node_track_caller+0x5e/0x362 [ 1185.660917][ T2025] [] do_futex+0x19c/0x284 [ 1185.662100][ T2749] [] __alloc_skb+0xee/0x2e4 [ 1185.663005][ T2025] [] sys_futex+0xf8/0x310 [ 1185.663812][ T2749] [] tcp_stream_alloc_skb+0x70/0x4c0 [ 1185.665103][ T2025] [] ret_from_syscall+0x0/0x2 [ 1185.666426][ T2749] [] tcp_sendmsg_locked+0x880/0x1d9e [ 1185.668605][ T2025] ================================================================== [ 1185.668646][ T2749] [] tcp_sendmsg+0x32/0x4e [ 1185.671149][ T2749] [] inet_sendmsg+0x74/0x94 [ 1185.671511][ T2025] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000b8 [ 1185.674262][ T2025] Oops [#1] [ 1185.674137][ T2749] [] sock_sendmsg+0xa0/0xc4 [ 1185.675135][ T2025] Modules linked in: [ 1185.676173][ T2749] [] sock_write_iter+0x1c0/0x272 [ 1185.677094][ T2025] CPU: 1 PID: 2025 Comm: syz-fuzzer Tainted: G B 5.17.0-rc1-syzkaller-00002-g0966d385830d #0 [ 1185.678275][ T2749] [] new_sync_write+0x296/0x3aa [ 1185.680045][ T2025] Hardware name: riscv-virtio,qemu (DT) [ 1185.680236][ T2025] epc : __lock_acquire+0x33a/0x333e [ 1185.681845][ T2749] [] vfs_write+0x2de/0x334 [ 1185.682713][ T2025] ra : __lock_acquire+0x336/0x333e [ 1185.683845][ T2749] [] ksys_write+0x1c4/0x224 [ 1185.684834][ T2025] epc : ffffffff801125bc ra : ffffffff801125b8 sp : ffffaf800eb17570 [ 1185.685908][ T2749] [] sys_write+0x28/0x36 [ 1185.687055][ T2025] gp : ffffffff85863ac0 tp : ffffaf800938c8c0 t0 : ffffffff86bcb657 [ 1185.687423][ T2025] t1 : fffffffef0b0dfa4 t2 : 0000000000000000 s0 : ffffaf800eb176d0 [ 1185.688439][ T2749] [] ret_from_syscall+0x0/0x2 [ 1185.690722][ T2025] s1 : 0000000000000000 a0 : ffffaf800938d300 a1 : 0000000000000003 [ 1185.691860][ T2749] irq event stamp: 5667 [ 1185.692865][ T2025] a2 : 1ffff5f001271919 a3 : ffffffff831afd3a a4 : 0000000000000000 [ 1185.693617][ T2025] a5 : ffffaf800938d8c0 a6 : 0000000000f00000 a7 : ffffffff8586fd23 [ 1185.694685][ T2749] hardirqs last enabled at (5667): [] __local_bh_enable_ip+0x1ac/0x2a4 [ 1185.695899][ T2025] s2 : 0000000000000081 s3 : ffffffff858c4cb0 s4 : 0000000000000000 [ 1185.696217][ T2025] s5 : ffffaf800938d2d8 s6 : ffffffff858c4ca0 s7 : 00000000000c0000 [ 1185.697679][ T2025] s8 : ffffaf800938d2e0 s9 : ffffffff800bdc7a s10: 00000000000c0081 [ 1185.699045][ T2025] s11: ffffaf800938c8c0 t3 : 000000000000003d t4 : fffffffef0b0dfa4 [ 1185.701544][ T2025] t5 : fffffffef0b0dfa5 t6 : ffffaf800eb16fd8 [ 1185.702773][ T2025] status: 0000000000000100 badaddr: 00000000000000b8 cause: 000000000000000d [ 1185.703987][ T2749] hardirqs last disabled at (5665): [] __local_bh_enable_ip+0x1de/0x2a4 [ 1185.705262][ T2025] [] lock_acquire.part.0+0x1d0/0x424 [ 1185.705624][ T2025] [] lock_acquire+0x54/0x6a [ 1185.707540][ T2749] softirqs last enabled at (5666): [] lock_sock_nested+0x9e/0xbe [ 1185.708222][ T2025] [] vtime_task_switch_generic+0x50/0x1f4 [ 1185.708550][ T2025] [] finish_task_switch.isra.0+0x292/0x420 [ 1185.711137][ T2749] softirqs last disabled at (5664): [] lock_sock_nested+0x5a/0xbe [ 1185.712259][ T2025] [] __schedule+0x58e/0x118e [ 1185.713934][ T2749] ---[ end trace 0000000000000000 ]--- [ 1185.714722][ T2025] [] schedule+0x74/0x14c [ 1185.716592][ T2025] [] futex_wait_queue+0xc4/0x1d4 [ 1185.716618][ T2749] Unable to handle kernel access to user memory without uaccess routines at virtual address 00000000000000b8 [ 1185.716924][ T2025] [] futex_wait+0x174/0x2f8 [ 1185.719860][ T2025] [] do_futex+0x19c/0x284 [ 1185.720890][ T2025] [] sys_futex+0xf8/0x310 [ 1185.722001][ T2025] [] ret_from_syscall+0x0/0x2 [ 1185.723536][ T2749] Oops [#2] [ 1185.724417][ T2749] Modules linked in: [ 1185.725350][ T2749] CPU: 0 PID: 2749 Comm: syz-fuzzer Tainted: G B D W 5.17.0-rc1-syzkaller-00002-g0966d385830d #0 [ 1185.727593][ T2749] Hardware name: riscv-virtio,qemu (DT) [ 1185.728722][ T2749] epc : __lock_acquire+0x33a/0x333e [ 1185.729898][ T2749] ra : __lock_acquire+0x336/0x333e [ 1185.731248][ T2749] epc : ffffffff801125bc ra : ffffffff801125b8 sp : ffffaf80243773a0 [ 1185.732276][ T2749] gp : ffffffff85863ac0 tp : ffffaf800d9d0000 t0 : ffffffff84a99ee0 [ 1185.733166][ T2749] t1 : fffff5ef0b53910c t2 : 0000000000000000 s0 : ffffaf8024377500 [ 1185.734085][ T2749] s1 : 0000000000000000 a0 : ffffaf800d9d0a68 a1 : 0000000000000001 [ 1185.734908][ T2749] a2 : 0000000000000000 a3 : ffffffff801125b8 a4 : ffffffff85892ec8 [ 1185.736300][ T2749] a5 : 0000000000000001 a6 : 00000000000000b8 a7 : ffffaf805a9c8863 [ 1185.737680][ T2749] s2 : 0000000000000085 s3 : ffffffff858c4cb0 s4 : 0000000000000000 [ 1185.739081][ T2749] s5 : ffffaf800d9d0a18 s6 : ffffffff858c4ca0 s7 : 0000000000040000 [ 1185.740609][ T2749] s8 : ffffaf800d9d0a48 s9 : ffffffff8046efb6 s10: 0000000000040085 [ 1185.742188][ T2749] s11: ffffaf800d9d0000 t3 : 0000000000000042 t4 : fffff5ef0b53910c [ 1185.743978][ T2749] t5 : fffff5ef0b53910d t6 : ffffffff86bda9c6 [ 1185.745327][ T2749] status: 0000000000000100 badaddr: 00000000000000b8 cause: 000000000000000d [ 1185.746978][ T2749] [] lock_acquire.part.0+0x1d0/0x424 [ 1185.748499][ T2749] [] lock_acquire+0x54/0x6a [ 1185.749800][ T2749] [] fs_reclaim_acquire+0xb4/0xda [ 1185.751278][ T2749] [] __kmalloc_node_track_caller+0x5e/0x362 [ 1185.752911][ T2749] [] __alloc_skb+0xee/0x2e4 [ 1185.754384][ T2749] [] tcp_stream_alloc_skb+0x70/0x4c0 [ 1185.755916][ T2749] [] tcp_sendmsg_locked+0x880/0x1d9e [ 1185.757312][ T2749] [] tcp_sendmsg+0x32/0x4e [ 1185.758598][ T2749] [] inet_sendmsg+0x74/0x94 [ 1185.759989][ T2749] [] sock_sendmsg+0xa0/0xc4 [ 1185.761462][ T2749] [] sock_write_iter+0x1c0/0x272 [ 1185.763004][ T2749] [] new_sync_write+0x296/0x3aa [ 1185.764077][ T2749] [] vfs_write+0x2de/0x334 [ 1185.765345][ T2749] [] ksys_write+0x1c4/0x224 [ 1185.766697][ T2749] [] sys_write+0x28/0x36 [ 1185.768071][ T2749] [] ret_from_syscall+0x0/0x2 [ 1185.936366][ T2749] ---[ end trace 0000000000000000 ]--- [ 1185.938206][ T2749] Kernel panic - not syncing: Fatal exception [ 1185.939349][ T2749] SMP: stopping secondary CPUs [ 1188.370507][ T2749] SMP: failed to stop secondary CPUs 0-1 [ 1188.373450][ T2749] Rebooting in 86400 seconds.. VM DIAGNOSIS: 18:29:59 Registers: info registers vcpu 0 pc ffffffff80124490 mhartid 0000000000000000 mstatus 0000000000000180 mip 00000000000000a0 mie 000000000000022a mideleg 0000000000000222 medeleg 000000000000b109 mtvec 0000000080000540 stvec ffffffff800055d4 mepc ffffffff80200a1c sepc ffffffff80112f5c mcause 8000000000000007 scause 0000000000000003 mtval 0000000000000000 stval 0000000000000000 x0/zero 0000000000000000 x1/ra ffffffff8012448c x2/sp ffffaf8024376c20 x3/gp ffffffff85863ac0 x4/tp ffffaf800d9d0000 x5/t0 ffffffff80009b6e x6/t1 fffff5ef0486ed9c x7/t2 ffffffff83604ca0 x8/s0 ffffaf8024376da0 x9/s1 ffffffff84a88a00 x10/a0 0000000000000000 x11/a1 00000000000f0000 x12/a2 0000000000000002 x13/a3 ffffffff8012448c x14/a4 ffffaf800d9d1000 x15/a5 0000000000000000 x16/a6 0000000000f00000 x17/a7 ffffaf8024376ce7 x18/s2 0000000000000068 x19/s3 0000000000000100 x20/s4 ffffaf8024376d20 x21/s5 ffffaf8024376e20 x22/s6 ffffaf8024376e60 x23/s7 ffffaf80243770c8 x24/s8 ffffaf8024376e30 x25/s9 1ffff5f00486edbc x26/s10 ffffffff85889780 x27/s11 ffffaf8024376e60 x28/t3 1ffff5f00486ecd8 x29/t4 fffff5ef0486ed9c x30/t5 fffff5ef0486ed9d x31/t6 ffffaf8024376975 f0/ft0 0000000000000000 f1/ft1 408a273de5f920cb f2/ft2 4133d35800000000 f3/ft3 413ffea000000000 f4/ft4 3ffe000000000000 f5/ft5 0000000000000000 f6/ft6 0000000000000000 f7/ft7 0000000000000000 f8/fs0 0000000000000000 f9/fs1 0000000000000000 f10/fa0 0000000000000000 f11/fa1 0000000000000000 f12/fa2 0000000000000000 f13/fa3 0000000000000000 f14/fa4 0000000000000000 f15/fa5 0000000000000000 f16/fa6 0000000000000000 f17/fa7 0000000000000000 f18/fs2 0000000000000000 f19/fs3 0000000000000000 f20/fs4 0000000000000000 f21/fs5 0000000000000000 f22/fs6 0000000000000000 f23/fs7 0000000000000000 f24/fs8 0000000000000000 f25/fs9 0000000000000000 f26/fs10 0000000000000000 f27/fs11 0000000000000000 f28/ft8 0000000000000000 f29/ft9 0000000000000000 f30/ft10 0000000000000000 f31/ft11 0000000000000000 info registers vcpu 1 pc ffffffff8011edb6 mhartid 0000000000000001 mstatus 00000000000001a0 mip 00000000000000a0 mie 000000000000022a mideleg 0000000000000222 medeleg 000000000000b109 mtvec 0000000080000540 stvec ffffffff800055d4 mepc ffffffff80200acc sepc ffffffff804c4a20 mcause 8000000000000007 scause 8000000000000001 mtval 0000000000000000 stval 0000000000000000 x0/zero 0000000000000000 x1/ra ffffffff8011eda6 x2/sp ffffaf800eb170e0 x3/gp ffffffff85863ac0 x4/tp ffffaf800938c8c0 x5/t0 ffffffff86bcb657 x6/t1 fffffffef0d796ca x7/t2 0000000000000000 x8/s0 ffffaf800eb172c0 x9/s1 0000000000000000 x10/a0 000000000000002e x11/a1 00000000000f0000 x12/a2 0000000000000002 x13/a3 ffffffff8011c8a6 x14/a4 6801c62767056c00 x15/a5 0000000000000120 x16/a6 ffffffff86bcb66e x17/a7 ffffffff86bcb656 x18/s2 000000000000002e x19/s3 000000000000000f x20/s4 ffffaf800eb17240 x21/s5 ffffaf800eb17160 x22/s6 ffffffff8588c1a0 x23/s7 ffffffff8588c3e0 x24/s8 ffffffff8588c220 x25/s9 ffffffff84a88520 x26/s10 ffffffff858655c0 x27/s11 ffffaf800eb17240 x28/t3 0000000000000044 x29/t4 fffffffef0d796c8 x30/t5 fffffffef0d796cb x31/t6 ffffffff86bcb657 f0/ft0 0000000000000000 f1/ft1 40775e45857d07cf f2/ft2 4121b6e000000000 f3/ft3 43e0000000000000 f4/ft4 3ffe000000000000 f5/ft5 0000000000000000 f6/ft6 0000000000000000 f7/ft7 0000000000000000 f8/fs0 0000000000000000 f9/fs1 0000000000000000 f10/fa0 0000000000000000 f11/fa1 0000000000000000 f12/fa2 0000000000000000 f13/fa3 0000000000000000 f14/fa4 0000000000000000 f15/fa5 0000000000000000 f16/fa6 0000000000000000 f17/fa7 0000000000000000 f18/fs2 0000000000000000 f19/fs3 0000000000000000 f20/fs4 0000000000000000 f21/fs5 0000000000000000 f22/fs6 0000000000000000 f23/fs7 0000000000000000 f24/fs8 0000000000000000 f25/fs9 0000000000000000 f26/fs10 0000000000000000 f27/fs11 0000000000000000 f28/ft8 0000000000000000 f29/ft9 0000000000000000 f30/ft10 0000000000000000 f31/ft11 0000000000000000