syzkaller login: [ 471.869036][ T1860] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 471.948094][ T1860] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 472.036756][ T1860] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 472.075852][ T1860] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. Warning: Permanently added '[localhost]:15281' (ECDSA) to the list of known hosts. 1970/01/01 00:08:28 fuzzer started 1970/01/01 00:08:40 dialing manager at localhost:35723 [ 526.146703][ T2027] cgroup: Unknown subsys name 'net' [ 527.463602][ T2027] cgroup: Unknown subsys name 'rlimit' 1970/01/01 00:08:47 syscalls: 2870 1970/01/01 00:08:47 code coverage: enabled 1970/01/01 00:08:47 comparison tracing: enabled 1970/01/01 00:08:47 extra coverage: enabled 1970/01/01 00:08:47 delay kcov mmap: mmap returned an invalid pointer 1970/01/01 00:08:47 setuid sandbox: enabled 1970/01/01 00:08:47 namespace sandbox: enabled 1970/01/01 00:08:47 Android sandbox: /sys/fs/selinux/policy does not exist 1970/01/01 00:08:47 fault injection: enabled 1970/01/01 00:08:47 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 1970/01/01 00:08:47 net packet injection: enabled 1970/01/01 00:08:47 net device setup: enabled 1970/01/01 00:08:47 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 1970/01/01 00:08:47 devlink PCI setup: PCI device 0000:00:10.0 is not available 1970/01/01 00:08:47 NIC VF setup: PCI device 0000:00:11.0 is not available 1970/01/01 00:08:47 USB emulation: enabled 1970/01/01 00:08:47 hci packet injection: /dev/vhci does not exist 1970/01/01 00:08:47 wifi device emulation: /sys/class/mac80211_hwsim/ does not exist 1970/01/01 00:08:47 802.15.4 emulation: /sys/bus/platform/devices/mac802154_hwsim does not exist 1970/01/01 00:08:47 fetching corpus: 0, signal 0/2000 (executing program) 1970/01/01 00:08:52 fetching corpus: 50, signal 27699/31234 (executing program) 1970/01/01 00:08:55 fetching corpus: 99, signal 39952/44978 (executing program) 1970/01/01 00:08:58 fetching corpus: 149, signal 48802/55205 (executing program) 1970/01/01 00:09:02 fetching corpus: 199, signal 55960/63657 (executing program) 1970/01/01 00:09:06 fetching corpus: 249, signal 66318/75066 (executing program) 1970/01/01 00:09:09 fetching corpus: 298, signal 71667/81604 (executing program) 1970/01/01 00:09:11 fetching corpus: 347, signal 74866/86028 (executing program) 1970/01/01 00:09:13 fetching corpus: 397, signal 77767/90118 (executing program) 1970/01/01 00:09:15 fetching corpus: 447, signal 80726/94193 (executing program) 1970/01/01 00:09:17 fetching corpus: 497, signal 82964/97589 (executing program) 1970/01/01 00:09:19 fetching corpus: 547, signal 86617/102214 (executing program) 1970/01/01 00:09:21 fetching corpus: 597, signal 88749/105429 (executing program) 1970/01/01 00:09:25 fetching corpus: 647, signal 91396/109061 (executing program) 1970/01/01 00:09:27 fetching corpus: 697, signal 94260/112840 (executing program) 1970/01/01 00:09:30 fetching corpus: 746, signal 96262/115839 (executing program) 1970/01/01 00:09:32 fetching corpus: 796, signal 98521/119002 (executing program) 1970/01/01 00:09:34 fetching corpus: 845, signal 100721/122066 (executing program) 1970/01/01 00:09:36 fetching corpus: 894, signal 103280/125414 (executing program) 1970/01/01 00:09:38 fetching corpus: 942, signal 105954/128830 (executing program) 1970/01/01 00:09:41 fetching corpus: 992, signal 108039/131682 (executing program) 1970/01/01 00:09:43 fetching corpus: 1042, signal 110286/134673 (executing program) 1970/01/01 00:09:45 fetching corpus: 1092, signal 112362/137509 (executing program) 1970/01/01 00:09:48 fetching corpus: 1142, signal 114507/140352 (executing program) 1970/01/01 00:09:50 fetching corpus: 1190, signal 116628/143139 (executing program) 1970/01/01 00:09:52 fetching corpus: 1240, signal 117951/145230 (executing program) 1970/01/01 00:09:54 fetching corpus: 1290, signal 119880/147845 (executing program) 1970/01/01 00:09:56 fetching corpus: 1339, signal 121736/150320 (executing program) 1970/01/01 00:09:58 fetching corpus: 1389, signal 123909/152970 (executing program) 1970/01/01 00:10:00 fetching corpus: 1438, signal 125051/154842 (executing program) 1970/01/01 00:10:02 fetching corpus: 1488, signal 126871/157214 (executing program) 1970/01/01 00:10:05 fetching corpus: 1536, signal 128635/159475 (executing program) 1970/01/01 00:10:07 fetching corpus: 1586, signal 131163/162295 (executing program) 1970/01/01 00:10:09 fetching corpus: 1636, signal 133205/164719 (executing program) 1970/01/01 00:10:11 fetching corpus: 1685, signal 134943/166940 (executing program) 1970/01/01 00:10:13 fetching corpus: 1735, signal 136004/168608 (executing program) 1970/01/01 00:10:15 fetching corpus: 1784, signal 137109/170283 (executing program) 1970/01/01 00:10:17 fetching corpus: 1834, signal 138103/171854 (executing program) 1970/01/01 00:10:19 fetching corpus: 1884, signal 138770/173182 (executing program) 1970/01/01 00:10:23 fetching corpus: 1932, signal 139952/174870 (executing program) 1970/01/01 00:10:24 fetching corpus: 1982, signal 141025/176477 (executing program) 1970/01/01 00:10:26 fetching corpus: 2032, signal 142083/178038 (executing program) 1970/01/01 00:10:29 fetching corpus: 2082, signal 142882/179409 (executing program) 1970/01/01 00:10:31 fetching corpus: 2132, signal 143887/180963 (executing program) 1970/01/01 00:10:33 fetching corpus: 2181, signal 145181/182658 (executing program) 1970/01/01 00:10:35 fetching corpus: 2231, signal 145968/183973 (executing program) 1970/01/01 00:10:37 fetching corpus: 2281, signal 146807/185339 (executing program) 1970/01/01 00:10:40 fetching corpus: 2331, signal 147793/186788 (executing program) 1970/01/01 00:10:43 fetching corpus: 2380, signal 148927/188297 (executing program) 1970/01/01 00:10:45 fetching corpus: 2430, signal 150016/189751 (executing program) 1970/01/01 00:10:47 fetching corpus: 2479, signal 151697/191582 (executing program) 1970/01/01 00:10:50 fetching corpus: 2529, signal 152511/192857 (executing program) 1970/01/01 00:10:52 fetching corpus: 2578, signal 153753/194379 (executing program) 1970/01/01 00:10:54 fetching corpus: 2628, signal 154721/195737 (executing program) 1970/01/01 00:10:57 fetching corpus: 2678, signal 155816/197107 (executing program) 1970/01/01 00:11:00 fetching corpus: 2728, signal 157487/198763 (executing program) [ 661.297917][ T2030] Kernel panic - not syncing: corrupted stack end detected inside scheduler [ 661.300691][ T2030] CPU: 0 PID: 2030 Comm: cmp Not tainted 5.17.0-rc1-syzkaller-00002-g0966d385830d #0 [ 661.303266][ T2030] Hardware name: riscv-virtio,qemu (DT) [ 661.305027][ T2030] Call Trace: [ 661.305747][ T2030] [] dump_backtrace+0x2e/0x3c [ 661.306791][ T2030] [] show_stack+0x34/0x40 [ 661.307553][ T2030] [] dump_stack_lvl+0xe4/0x150 [ 661.308519][ T2030] [] dump_stack+0x1c/0x24 [ 661.309481][ T2030] [] panic+0x24a/0x634 [ 661.310208][ T2030] [] schedule+0x0/0x14c [ 661.311007][ T2030] [] preempt_schedule_notrace+0x9c/0x19a [ 661.312331][ T2030] [] rcu_is_watching+0xa0/0xae [ 661.313511][ T2030] [] rcu_read_lock_held+0x22/0x4e [ 661.314367][ T2030] [] ext4_get_group_desc+0x106/0x3c2 [ 661.315119][ T2030] [] __ext4_get_inode_loc+0x154/0xc08 [ 661.315974][ T2030] [] ext4_get_inode_loc+0xb2/0x138 [ 661.317017][ T2030] [] ext4_reserve_inode_write+0x76/0x164 [ 661.317956][ T2030] [] __ext4_mark_inode_dirty+0x17a/0x6bc [ 661.319063][ T2030] [] ext4_dirty_inode+0x90/0xba [ 661.319885][ T2030] [] __mark_inode_dirty+0x40a/0xf04 [ 661.320660][ T2030] [] touch_atime+0x656/0x67a [ 661.321583][ T2030] [] ext4_file_mmap+0x236/0x23c [ 661.322787][ T2030] [] mmap_region+0x7a0/0xa88 [ 661.323611][ T2030] [] do_mmap+0x784/0x8d2 [ 661.324362][ T2030] [] vm_mmap_pgoff+0x1a2/0x24e [ 661.325142][ T2030] [] vm_mmap+0x82/0xaa [ 661.326098][ T2030] [] elf_map+0xbe/0x1da [ 661.326905][ T2030] [] load_elf_binary+0x12de/0x2716 [ 661.327712][ T2030] [] bprm_execve+0x5bc/0x1140 [ 661.328756][ T2030] [] do_execveat_common+0x298/0x312 [ 661.329605][ T2030] [] sys_execve+0x32/0x40 [ 661.330514][ T2030] [] ret_from_syscall+0x0/0x2 [ 661.331627][ T2030] SMP: stopping secondary CPUs [ 661.334868][ T2030] Rebooting in 86400 seconds.. VM DIAGNOSIS: 20:46:10 Registers: info registers vcpu 0 pc ffffffff8010b22c mhartid 0000000000000000 mstatus 00000000000001a0 mip 00000000000000a0 mie 000000000000020a mideleg 0000000000000222 medeleg 000000000000b109 mtvec 0000000080000540 stvec ffffffff800055d4 mepc ffffffff80112b66 sepc ffffffff831afca4 mcause 8000000000000007 scause 8000000000000005 mtval 0000000000000000 stval 0000000000000000 x0/zero 0000000000000000 x1/ra ffffffff831a18d8 x2/sp ffffaf800cf87840 x3/gp ffffffff85863ac0 x4/tp ffffaf8007b91840 x5/t0 0000000000046000 x6/t1 93904f542fc7b500 x7/t2 fffffffff0731524 x8/s0 ffffaf800cf87850 x9/s1 0000000000001000 x10/a0 0000000000000120 x11/a1 ffffffffffffffff x12/a2 1ffff5f000f72309 x13/a3 ffffffff80146d84 x14/a4 0000000000010003 x15/a5 0000000000000000 x16/a6 0000000000f00000 x17/a7 ffffffff8016f3a6 x18/s2 ffffaf8007b91840 x19/s3 ffffffff84b73ec0 x20/s4 0000000000000002 x21/s5 ffffffff8343c840 x22/s6 ffffffffffffffff x23/s7 ffffffff8016f3a6 x24/s8 ffffffff86c1a620 x25/s9 ffffffff8588a420 x26/s10 ffffaf805a9e75e8 x27/s11 ffffaf805a9e7448 x28/t3 fffffffff3f3f300 x29/t4 ffffffff80112282 x30/t5 1ffff5f0019f0ee0 x31/t6 0000000000040000 f0/ft0 0000000000000000 f1/ft1 0000000000000000 f2/ft2 0000000000000000 f3/ft3 0000000000000000 f4/ft4 0000000000000000 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 ffffffff80475986 mhartid 0000000000000001 mstatus 00000000000000a0 mip 00000000000000a0 mie 000000000000022a mideleg 0000000000000222 medeleg 000000000000b109 mtvec 0000000080000540 stvec ffffffff800055d4 mepc ffffffff80200f48 sepc ffffffff80200f00 mcause 8000000000000007 scause 8000000000000005 mtval 0000000000000000 stval 0000000000000000 x0/zero 0000000000000000 x1/ra ffffffff80dc3394 x2/sp ffffaf800bd028f0 x3/gp ffffffff85863ac0 x4/tp ffffaf800bd9c8c0 x5/t0 ffffffff86bcb657 x6/t1 93904f542fc7b500 x7/t2 0000000000000000 x8/s0 ffffaf800bd02920 x9/s1 ffffffff86e58900 x10/a0 ffffaf800bd9c8e0 x11/a1 ffff8f800066c000 x12/a2 1ffffffff0dcb129 x13/a3 ffffffff80dc337e x14/a4 0000000000000000 x15/a5 ffffffff86e58948 x16/a6 ffffffff86e589f1 x17/a7 ffffffff80dcc2ca x18/s2 ffffaf800bd9c8c0 x19/s3 000000000000005b x20/s4 ffffffff86e58900 x21/s5 ffffffff80dc333e x22/s6 0000000000000000 x23/s7 ffffffff86bcb67d x24/s8 0000000000000010 x25/s9 ffffffff86e58958 x26/s10 0000000000000010 x27/s11 0000000000000000 x28/t3 fffffffff3f3f300 x29/t4 ffffffff80112282 x30/t5 1ffff5f0017a04cc x31/t6 ffffffff86bcb657 f0/ft0 0000000000000000 f1/ft1 407c1740da740da8 f2/ft2 4104420000000000 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