ci2 starts bisection 2024-09-12 05:55:14.085558252 +0000 UTC m=+39804.004643077
bisecting fixing commit since 5d96939590c0122be2138255c921e57e3f78b7bd
building syzkaller on 610f2a54d02f8cf4f2454c03bf679b602e6e59b6
ensuring issue is reproducible on original commit 5d96939590c0122be2138255c921e57e3f78b7bd

testing commit 5d96939590c0122be2138255c921e57e3f78b7bd gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 71248c42385feb00b28798babff3b0f1a64f25a0c53b278024a4f87138c6a88a
run #0: crashed: BUG: soft lockup in rcu_core_si
run #1: crashed: BUG: soft lockup in rcu_core_si
run #2: crashed: BUG: soft lockup in inet_release
run #3: crashed: BUG: soft lockup in inet_release
run #4: crashed: BUG: soft lockup in wg_packet_handshake_receive_worker
run #5: crashed: BUG: soft lockup in inet_release
run #6: crashed: BUG: soft lockup in rcu_core_si
run #7: crashed: BUG: soft lockup in sys_syslog
run #8: crashed: BUG: soft lockup in inet_release
run #9: crashed: BUG: soft lockup in corrupted
run #10: crashed: BUG: soft lockup in inet_release
run #11: crashed: BUG: soft lockup in inet_release
run #12: crashed: BUG: soft lockup in inet_release
run #13: crashed: BUG: soft lockup in inet_release
run #14: crashed: BUG: soft lockup in linkwatch_event
run #15: crashed: BUG: soft lockup in inet_release
run #16: crashed: BUG: soft lockup in inet_release
run #17: crashed: BUG: soft lockup in inet_release
run #18: crashed: BUG: soft lockup in inet_release
run #19: crashed: no output from test machine
representative crash: BUG: soft lockup in rcu_core_si, types: [HANG]
check whether we can drop unnecessary instrumentation
disabling configs for [ATOMIC_SLEEP LEAK UBSAN BUG KASAN LOCKDEP], they are not needed
testing commit 5d96939590c0122be2138255c921e57e3f78b7bd gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: c43087722701449f873d95f9ab5b5bf39d1f0c6754d3ad5a04552b669b61d009
run #0: crashed: BUG: soft lockup in ipv6_rcv
run #1: crashed: BUG: soft lockup in inet_release
run #2: crashed: BUG: soft lockup in sys_syslog
run #3: crashed: BUG: soft lockup in inet_release
run #4: crashed: BUG: soft lockup in sys_syslog
run #5: crashed: BUG: soft lockup in inet_release
run #6: crashed: BUG: soft lockup in sys_socket
run #7: crashed: BUG: soft lockup in inet_release
run #8: crashed: BUG: soft lockup in inet_release
run #9: crashed: BUG: soft lockup in sys_recvmsg
representative crash: BUG: soft lockup in ipv6_rcv, types: [HANG]
the bug reproduces without the instrumentation
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG], they are not needed
kconfig minimization: base=4920 full=6158 leaves diff=242
split chunks (needed=false): <242>
split chunk #0 of len 242 into 5 parts
testing without sub-chunk 1/5
disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed
testing commit 5d96939590c0122be2138255c921e57e3f78b7bd gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 356e1867bd631fd73a5e46c288ac605fa1115951b84fd2e030cf1cbd090e9e60
run #0: crashed: BUG: soft lockup in inet_release
run #1: crashed: BUG: soft lockup in inet_release
run #2: crashed: BUG: soft lockup in inet_release
run #3: crashed: BUG: soft lockup in ipv6_rcv
run #4: crashed: BUG: soft lockup in sys_syslog
run #5: crashed: BUG: soft lockup in inet_release
run #6: crashed: BUG: soft lockup in inet_release
run #7: crashed: BUG: soft lockup in inet_release
run #8: crashed: BUG: soft lockup in sys_syslog
run #9: crashed: BUG: soft lockup in rcu_core_si
representative crash: BUG: soft lockup in inet_release, types: [HANG]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit 5d96939590c0122be2138255c921e57e3f78b7bd gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: b5ed8d4dd75aafb2fc8467679d3f8151fb60088fc66fb5037afe46224eb3f34d
run #0: crashed: BUG: soft lockup in sock_read_iter
run #1: crashed: BUG: soft lockup in ipv6_rcv
run #2: crashed: BUG: soft lockup in rcu_core_si
run #3: crashed: BUG: soft lockup in rcu_core_si
run #4: crashed: BUG: soft lockup in sys_sendto
run #5: crashed: BUG: soft lockup in inet_release
run #6: crashed: BUG: soft lockup in rtnl_newlink
run #7: crashed: BUG: soft lockup in sys_socket
run #8: crashed: BUG: soft lockup in net_rx_action
run #9: crashed: BUG: soft lockup in kfree_link
representative crash: BUG: soft lockup in sock_read_iter, types: [HANG]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit 5d96939590c0122be2138255c921e57e3f78b7bd gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: e5563ac1c2a9ea043b9155a4c264097eebae5a534179e8ab6dae11f957ed216b
run #0: crashed: BUG: soft lockup in sys_socket
run #1: crashed: BUG: soft lockup in wg_packet_handshake_receive_worker
run #2: crashed: BUG: soft lockup in inet_release
run #3: crashed: BUG: soft lockup in bpf_map_free_deferred
run #4: crashed: BUG: soft lockup in sys_syslog
run #5: crashed: BUG: soft lockup in sock_read_iter
run #6: crashed: BUG: soft lockup in ipv6_rcv
run #7: crashed: BUG: soft lockup in rtnl_newlink
run #8: crashed: BUG: soft lockup in linkwatch_event
run #9: crashed: BUG: soft lockup in rtnl_newlink
representative crash: BUG: soft lockup in sys_socket, types: [HANG]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG], they are not needed
testing commit 5d96939590c0122be2138255c921e57e3f78b7bd gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 13eadeb8cb33f4b5ba0e9b4fcdd31f204c18d70fbb28d9cf036c936212d00cf6
run #0: crashed: BUG: soft lockup in rcu_core_si
run #1: crashed: BUG: soft lockup in ipv6_rcv
run #2: crashed: BUG: soft lockup in inet_release
run #3: crashed: BUG: soft lockup in sys_recvmsg
run #4: crashed: BUG: soft lockup in inet_release
run #5: crashed: BUG: soft lockup in sys_syslog
run #6: crashed: BUG: soft lockup in sys_sendto
run #7: crashed: BUG: soft lockup in inet_release
run #8: crashed: BUG: soft lockup in kernfs_fop_read_iter
run #9: crashed: BUG: soft lockup in rtnl_newlink
representative crash: BUG: soft lockup in rcu_core_si, types: [HANG]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [ATOMIC_SLEEP LEAK UBSAN BUG KASAN LOCKDEP], they are not needed
testing commit 5d96939590c0122be2138255c921e57e3f78b7bd gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
failed building 5d96939590c0122be2138255c921e57e3f78b7bd: net/socket.c:1191: undefined reference to `wext_handle_ioctl'
net/socket.c:3385: undefined reference to `compat_wext_handle_ioctl'
net/core/net-procfs.c:343: undefined reference to `wext_proc_exit'
net/core/net-procfs.c:327: undefined reference to `wext_proc_init'
minimized to 46 configs; suspects: [HID_ZEROPLUS USB_NET_GL620A USB_NET_MCS7830 USB_NET_NET1080 USB_NET_PLUSB USB_NET_RNDIS_HOST USB_NET_SMSC75XX USB_NET_SMSC95XX USB_NET_SR9700 USB_NET_SR9800 USB_NET_ZAURUS USB_OHCI_HCD USB_OHCI_HCD_PCI USB_OHCI_HCD_PLATFORM USB_OTG USB_OTG_FSM USB_PRINTER USB_SERIAL USB_SERIAL_FTDI_SIO USB_SERIAL_GENERIC USB_SERIAL_PL2303 USB_STORAGE_ALAUDA USB_STORAGE_CYPRESS_ATACB USB_STORAGE_DATAFAB USB_STORAGE_FREECOM USB_STORAGE_ISD200 USB_STORAGE_JUMPSHOT USB_STORAGE_KARMA USB_STORAGE_ONETOUCH USB_STORAGE_SDDR09 USB_STORAGE_SDDR55 USB_STORAGE_USBAT USB_TRANCEVIBRATOR USB_U_AUDIO USB_U_ETHER USB_U_SERIAL USB_WDM WLAN WLAN_VENDOR_ATH WLAN_VENDOR_ATMEL WLAN_VENDOR_BROADCOM WLAN_VENDOR_INTERSIL WLAN_VENDOR_MARVELL WLAN_VENDOR_MEDIATEK WLAN_VENDOR_MICROCHIP WLAN_VENDOR_RALINK WLAN_VENDOR_REALTEK WLAN_VENDOR_RSI WLAN_VENDOR_ZYDAS X86_X32 ZEROPLUS_FF]
disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK], they are not needed
testing current HEAD e6fb3b0fa87f1fe127bc20a5038d8e8e08e57cf7
testing commit e6fb3b0fa87f1fe127bc20a5038d8e8e08e57cf7 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 992196e6916a30edebc0cee76ca875d0e13855b1f1f4d32a7d4ce5fa45a18419
run #0: crashed: BUG: soft lockup in rcu_core_si
run #1: crashed: BUG: soft lockup in inet_release
run #2: crashed: BUG: soft lockup in linkwatch_event
run #3: crashed: BUG: soft lockup in bpf_prog_release
run #4: crashed: BUG: soft lockup in linkwatch_event
run #5: crashed: BUG: soft lockup in linkwatch_event
run #6: crashed: BUG: soft lockup in inet_release
run #7: crashed: BUG: soft lockup in inet_rtm_newaddr
run #8: crashed: BUG: soft lockup in inet_release
run #9: crashed: BUG: soft lockup in inet_release
representative crash: BUG: soft lockup in rcu_core_si, types: [HANG]
crash still not fixed/happens on the oldest tested release
revisions tested: 7, total time: 1h12m33.036196075s (build: 16m13.085248719s, test: 54m21.437810074s)
crash still not fixed or there were kernel test errors
commit msg: Revert "binder: fix max_thread type inconsistency"
crash: BUG: soft lockup in rcu_core_si
watchdog: BUG: soft lockup - CPU#1 stuck for 143s! [ksoftirqd/1:25]
Modules linked in:
CPU: 1 PID: 25 Comm: ksoftirqd/1 Not tainted 5.15.160-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:arch_safe_halt arch/x86/include/asm/irqflags.h:90 [inline]
RIP: 0010:kvm_wait arch/x86/kernel/kvm.c:918 [inline]
RIP: 0010:kvm_wait+0x3e/0x40 arch/x86/kernel/kvm.c:900
Code: 0b fa 0f b6 07 40 38 f0 74 15 fb c3 0f b6 07 40 38 c6 75 f7 66 90 0f 00 2d 8d f3 34 01 f4 c3 66 90 0f 00 2d 82 f3 34 01 fb f4 <c3> 90 8b 05 1a 21 d7 01 83 f8 ff 74 06 85 c0 0f 95 c0 c3 55 48 89
RSP: 0018:ffffc900000d7aa0 EFLAGS: 00000246
RAX: 0000000000000003 RBX: ffff888237d2cb00 RCX: 0000000000000008
RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffff888112a22688
RBP: ffffc900000d7ae0 R08: ffff88823fff0840 R09: 0000000000000000
R10: 0000000000000001 R11: ffff888237d2cb00 R12: ffff888112a22688
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000100
FS:  0000000000000000(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000559b97c1c3a8 CR3: 0000000101de4000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:585 [inline]
 queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline]
 queued_spin_lock include/asm-generic/qspinlock.h:85 [inline]
 do_raw_spin_lock include/linux/spinlock.h:187 [inline]
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:136 [inline]
 _raw_spin_lock_bh+0x39/0x40 kernel/locking/spinlock.c:178
 sock_hash_delete_elem+0x5f/0x120 net/core/sock_map.c:943
 bpf_prog_2c29ac5cdc6b1842+0x3a/0x62c
 bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline]
 __bpf_prog_run include/linux/filter.h:628 [inline]
 bpf_prog_run include/linux/filter.h:635 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline]
 bpf_trace_run2+0x37/0x90 kernel/trace/bpf_trace.c:1917
 __bpf_trace_kfree+0x9/0x10 include/trace/events/kmem.h:118
 trace_kfree include/trace/events/kmem.h:118 [inline]
 kfree+0x1ff/0x2a0 mm/slub.c:4569
 sk_psock_free_link include/linux/skmsg.h:420 [inline]
 sock_map_del_link+0x111/0x1c0 net/core/sock_map.c:160
 sock_map_unref+0x2f/0x70 net/core/sock_map.c:182
 sock_hash_delete_elem+0xd4/0x120 net/core/sock_map.c:947
 bpf_prog_2c29ac5cdc6b1842+0x3a/0x62c
 bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline]
 __bpf_prog_run include/linux/filter.h:628 [inline]
 bpf_prog_run include/linux/filter.h:635 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline]
 bpf_trace_run2+0x37/0x90 kernel/trace/bpf_trace.c:1917
 __bpf_trace_kfree+0x9/0x10 include/trace/events/kmem.h:118
 trace_kfree include/trace/events/kmem.h:118 [inline]
 kfree+0x1ff/0x2a0 mm/slub.c:4569
 shmem_free_in_core_inode+0x37/0x40 mm/shmem.c:3802
 i_callback+0x19/0x30 fs/inode.c:225
 rcu_do_batch+0x177/0x4a0 kernel/rcu/tree.c:2523
 rcu_core+0x261/0x390 kernel/rcu/tree.c:2763
 rcu_core_si+0x9/0x10 kernel/rcu/tree.c:2776
 __do_softirq+0xff/0x2fc kernel/softirq.c:565
 run_ksoftirqd kernel/softirq.c:937 [inline]
 run_ksoftirqd+0x26/0x30 kernel/softirq.c:929
 smpboot_thread_fn+0x17c/0x220 kernel/smpboot.c:164
 kthread+0x13a/0x160 kernel/kthread.c:337
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:300
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 400 Comm: syz-executor.1 Not tainted 5.15.160-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:arch_safe_halt arch/x86/include/asm/irqflags.h:90 [inline]
RIP: 0010:kvm_wait arch/x86/kernel/kvm.c:918 [inline]
RIP: 0010:kvm_wait+0x3e/0x40 arch/x86/kernel/kvm.c:900
Code: 0b fa 0f b6 07 40 38 f0 74 15 fb c3 0f b6 07 40 38 c6 75 f7 66 90 0f 00 2d 8d f3 34 01 f4 c3 66 90 0f 00 2d 82 f3 34 01 fb f4 <c3> 90 8b 05 1a 21 d7 01 83 f8 ff 74 06 85 c0 0f 95 c0 c3 55 48 89
RSP: 0018:ffffc900004cbd08 EFLAGS: 00000246
RAX: 0000000000000003 RBX: ffff888237c2cb00 RCX: 0000000000000008
RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffff88811641e290
RBP: ffffc900004cbd48 R08: ffff88823fff10c0 R09: 0000000000000000
R10: 0000000000000001 R11: ffff888237c2cb00 R12: ffff88811641e290
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000100
FS:  00005555571a6480(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f68303590c0 CR3: 00000001132a6000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:585 [inline]
 queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline]
 queued_spin_lock include/asm-generic/qspinlock.h:85 [inline]
 do_raw_spin_lock include/linux/spinlock.h:187 [inline]
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:136 [inline]
 _raw_spin_lock_bh+0x39/0x40 kernel/locking/spinlock.c:178
 spin_lock_bh include/linux/spinlock.h:368 [inline]
 sk_psock_link_pop+0x1b/0x80 net/core/skmsg.c:753
 sock_map_remove_links+0x22/0x150 net/core/sock_map.c:1510
 sock_map_close+0xab/0x120 net/core/sock_map.c:1552
 inet_release+0x3d/0x80 net/ipv4/af_inet.c:434
 __sock_release+0x37/0xa0 net/socket.c:649
 sock_close+0x10/0x20 net/socket.c:1336
 __fput+0xd5/0x260 fs/file_table.c:280
 ____fput+0x9/0x10 fs/file_table.c:308
 task_work_run+0x5c/0x90 kernel/task_work.c:164
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:181 [inline]
 exit_to_user_mode_prepare+0x143/0x150 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x21/0x40 kernel/entry/common.c:307
 do_syscall_64+0x40/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f683022db9a
Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 03 7f 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 63 7f 02 00 8b 44 24
RSP: 002b:00007fffb07b4f50 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007f683022db9a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007fffb07b5028 R08: 00007f68301b1000 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000293 R12: 000000000000e77e
R13: 00007f683035cf8c R14: 00007f683035cf80 R15: 0000000000000226
 </TASK>