syzkaller login: [ 490.384173][ T1860] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 490.563596][ T1860] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 490.590751][ T1860] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 510.565728][ T1860] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. Warning: Permanently added '[localhost]:26969' (ECDSA) to the list of known hosts. 1970/01/01 00:09:27 fuzzer started 1970/01/01 00:09:40 dialing manager at localhost:41961 [ 587.447128][ T2033] cgroup: Unknown subsys name 'net' [ 588.738667][ T2033] cgroup: Unknown subsys name 'rlimit' 1970/01/01 00:09:48 syscalls: 2893 1970/01/01 00:09:48 code coverage: enabled 1970/01/01 00:09:48 comparison tracing: enabled 1970/01/01 00:09:48 extra coverage: enabled 1970/01/01 00:09:48 delay kcov mmap: mmap returned an invalid pointer 1970/01/01 00:09:48 setuid sandbox: enabled 1970/01/01 00:09:48 namespace sandbox: enabled 1970/01/01 00:09:48 Android sandbox: /sys/fs/selinux/policy does not exist 1970/01/01 00:09:48 fault injection: enabled 1970/01/01 00:09:48 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 1970/01/01 00:09:48 net packet injection: enabled 1970/01/01 00:09:48 net device setup: enabled 1970/01/01 00:09:48 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 1970/01/01 00:09:48 devlink PCI setup: PCI device 0000:00:10.0 is not available 1970/01/01 00:09:48 NIC VF setup: PCI device 0000:00:11.0 is not available 1970/01/01 00:09:48 USB emulation: enabled 1970/01/01 00:09:48 hci packet injection: /dev/vhci does not exist 1970/01/01 00:09:48 wifi device emulation: /sys/class/mac80211_hwsim/ does not exist 1970/01/01 00:09:48 802.15.4 emulation: /sys/bus/platform/devices/mac802154_hwsim does not exist 1970/01/01 00:09:48 fetching corpus: 0, signal 0/2000 (executing program) 1970/01/01 00:09:55 fetching corpus: 50, signal 32811/36333 (executing program) 1970/01/01 00:09:58 fetching corpus: 99, signal 44409/49455 (executing program) 1970/01/01 00:10:03 fetching corpus: 149, signal 57300/63688 (executing program) 1970/01/01 00:10:05 fetching corpus: 199, signal 62148/69968 (executing program) 1970/01/01 00:10:08 fetching corpus: 249, signal 70034/79044 (executing program) 1970/01/01 00:10:13 fetching corpus: 299, signal 78345/88460 (executing program) 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fetching corpus: 14368, signal 278604/280966 (executing program) 1970/01/01 00:23:41 fetching corpus: 14368, signal 278604/280966 (executing program) 1970/01/01 00:25:53 starting 2 fuzzer processes 00:25:53 executing program 0: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) bind$unix(r0, &(0x7f0000000080)=@file={0x0, './file0\x00'}, 0x2) 00:25:53 executing program 1: syz_emit_ethernet(0x2a, &(0x7f0000000000)={@random="0bbf30d0d179", @link_local, @void, {@ipv4={0x800, @igmp={{0x5, 0x4, 0x0, 0x0, 0x1c, 0x0, 0x0, 0x0, 0x2, 0x0, @private, @multicast1}, {0x11, 0x0, 0x0, @broadcast}}}}}, 0x0) [ 1582.017401][ T2060] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 1582.217842][ T2060] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 1582.327173][ T1795] Kernel panic - not syncing: corrupted stack end detected inside scheduler [ 1582.329375][ T1795] CPU: 0 PID: 1795 Comm: jbd2/vda-8 Not tainted 5.17.0-rc1-syzkaller-00002-g0966d385830d #0 [ 1582.331842][ T1795] Hardware name: riscv-virtio,qemu (DT) [ 1582.334736][ T1795] Call Trace: [ 1582.335892][ T1795] [] dump_backtrace+0x2e/0x3c [ 1582.337486][ T1795] [] show_stack+0x34/0x40 [ 1582.338736][ T1795] [] dump_stack_lvl+0xe4/0x150 [ 1582.340117][ T1795] [] dump_stack+0x1c/0x24 [ 1582.341865][ T1795] [] panic+0x24a/0x634 [ 1582.343685][ T1795] [] schedule+0x0/0x14c [ 1582.345123][ T1795] [] preempt_schedule_common+0x4e/0xde [ 1582.346561][ T1795] [] preempt_schedule+0x34/0x36 [ 1582.348140][ T1795] [] _raw_read_unlock+0x60/0x6a [ 1582.349606][ T1795] [] ext4_es_lookup_extent+0x2d4/0x904 [ 1582.351004][ T1795] [] ext4_map_blocks+0x168/0xe64 [ 1582.352693][ T1795] [] ext4_iomap_begin+0x54a/0x56e [ 1582.354167][ T1795] [] iomap_iter+0x3be/0xcf6 [ 1582.355537][ T1795] [] iomap_bmap+0x124/0x1e8 [ 1582.356833][ T1795] [] ext4_bmap+0x134/0x22e [ 1582.358295][ T1795] [] bmap+0x5a/0x84 [ 1582.359578][ T1795] [] jbd2_journal_bmap+0xb4/0x18c [ 1582.360810][ T1795] [] jbd2_journal_next_log_block+0xce/0xec [ 1582.362692][ T1795] [] jbd2_journal_get_descriptor_buffer+0x9e/0x2ae [ 1582.364027][ T1795] [] journal_submit_commit_record.part.0+0x9a/0x626 [ 1582.365456][ T1795] [] jbd2_journal_commit_transaction+0x38aa/0x4a38 [ 1582.366842][ T1795] [] kjournald2+0x19e/0x614 [ 1582.367958][ T1795] [] kthread+0x19e/0x1fa [ 1582.369134][ T1795] [] ret_from_exception+0x0/0x10 [ 1582.370834][ T1795] SMP: stopping secondary CPUs [ 1582.374129][ T1795] Rebooting in 86400 seconds.. VM DIAGNOSIS: 05:05:42 Registers: info registers vcpu 0 pc ffffffff8010b22c mhartid 0000000000000000 mstatus 00000000000001a0 mip 00000000000000a0 mie 000000000000020a mideleg 0000000000000222 medeleg 000000000000b109 mtvec 0000000080000540 stvec ffffffff800055d4 mepc ffffffff8011650a sepc ffffffff801165e0 mcause 8000000000000007 scause 8000000000000005 mtval 0000000000000000 stval 0000000000000000 x0/zero 0000000000000000 x1/ra ffffffff831a18d8 x2/sp ffffaf800caea0b0 x3/gp ffffffff85863ac0 x4/tp ffffaf8009c2c8c0 x5/t0 0000000000046000 x6/t1 531715633107c200 x7/t2 000000005e0cc4d0 x8/s0 ffffaf800caea0c0 x9/s1 0000000000001000 x10/a0 0000000000000120 x11/a1 ffffffffffffffff x12/a2 1ffff5f001385919 x13/a3 ffffffff80146d84 x14/a4 0000000000010002 x15/a5 0000000000000000 x16/a6 0000000000f00000 x17/a7 ffffffff80b08bfe x18/s2 ffffaf800caea1e0 x19/s3 ffffffff84b73ec0 x20/s4 0000000000000001 x21/s5 ffffffff8343c840 x22/s6 ffffffffffffffff x23/s7 0000000000000000 x24/s8 ffffffff86c1a620 x25/s9 1ffff5f00195d42c x26/s10 ffffaf805a9e7418 x27/s11 ffffffff8016da88 x28/t3 fffffffff3f3f300 x29/t4 ffffffff80112282 x30/t5 1ffff5f00195d3d4 x31/t6 0000000000000006 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 ffffffff80dc15ca mhartid 0000000000000001 mstatus 00000000000000a0 mip 00000000000000a0 mie 000000000000022a mideleg 0000000000000222 medeleg 000000000000b109 mtvec 0000000080000540 stvec ffffffff800055d4 mepc ffffffff80475986 sepc ffffffff801165e0 mcause 8000000000000007 scause 8000000000000005 mtval 0000000000000000 stval 0000000000000000 x0/zero 0000000000000000 x1/ra ffffffff80dc15ca x2/sp ffffaf800f776830 x3/gp ffffffff85863ac0 x4/tp ffffaf800f7d0000 x5/t0 ffffffff86bcb657 x6/t1 531715633107c200 x7/t2 0000000000000000 x8/s0 ffffaf800f776850 x9/s1 ffffffff86e58900 x10/a0 ffff8f800066c002 x11/a1 0000000000000007 x12/a2 1ffffffff0dcb129 x13/a3 ffffffff80dc15ca x14/a4 0000000000000000 x15/a5 ffffffff86e58948 x16/a6 ffffffff86e589f1 x17/a7 ffffffff80dcc2ca x18/s2 0000000000000002 x19/s3 ffffffff86e589ec x20/s4 ffffffff86e58900 x21/s5 0000000000000010 x22/s6 ffffffff86e58950 x23/s7 ffffffff86e58b88 x24/s8 0000000000000000 x25/s9 ffffffff86e58958 x26/s10 ffffffff858655c0 x27/s11 0000000000000000 x28/t3 fffffffff3f3f300 x29/t4 ffffffff80112282 x30/t5 1ffff5f001eeecb4 x31/t6 ffffffff86bcb657 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