ci2 starts bisection 2024-06-06 14:12:15.834059631 +0000 UTC m=+46087.429775769 bisecting fixing commit since 993bed180178156a70afdafe8aaf23a117107352 building syzkaller on c8349e48534ea6d8f01515335d95de8ebf5da8df ensuring issue is reproducible on original commit 993bed180178156a70afdafe8aaf23a117107352 testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 75c808016ea901c988436d5db21dcec2227163a263bdca9c2d1b57eb23854472 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 dput run #3: crashed: BUG: soft lockup in dput run #4: crashed: BUG: soft lockup in fsnotify_mark_destroy_workfn run #5: crashed: BUG: soft lockup in ipv6_rcv run #6: crashed: BUG: soft lockup in ipv6_rcv run #7: crashed: BUG: soft lockup in dput run #8: crashed: BUG: soft lockup in dput run #9: crashed: BUG: soft lockup in ipv6_rcv run #10: crashed: BUG: soft lockup in fsnotify_mark_destroy_workfn run #11: crashed: BUG: soft lockup in dput run #12: crashed: BUG: soft lockup in dput run #13: crashed: BUG: soft lockup in ipv6_rcv run #14: crashed: BUG: soft lockup in security_file_free run #15: crashed: BUG: soft lockup in fsnotify_mark_destroy_workfn run #16: crashed: BUG: soft lockup in rcu_core_si run #17: crashed: BUG: soft lockup in sk_psock_destroy run #18: crashed: no output from test machine 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 [BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e13c4bde706e5151de441b51bc754a4dda2252f55809da4b9514e660550d088a run #0: crashed: BUG: soft lockup in dput run #1: crashed: BUG: soft lockup in dput run #2: crashed: BUG: soft lockup in ipv6_rcv run #3: crashed: BUG: soft lockup in dput run #4: crashed: BUG: soft lockup in kauditd_thread run #5: crashed: BUG: soft lockup in dput run #6: crashed: BUG: soft lockup in dput run #7: crashed: BUG: soft lockup in rcu_core_si run #8: crashed: BUG: soft lockup in ipv6_rcv run #9: crashed: no output from test machine representative crash: BUG: soft lockup in dput, types: [HANG] the bug reproduces without the instrumentation disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed kconfig minimization: base=4920 full=6159 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 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 49b59534fdf9badf3fda14bb59c6898abef94ee8e8a8d34132e266565dbb954e run #0: crashed: BUG: soft lockup in dput run #1: crashed: BUG: soft lockup in bpf_prog_free_deferred run #2: crashed: BUG: soft lockup in sys_openat run #3: crashed: BUG: soft lockup in bpf_prog_free_deferred run #4: crashed: BUG: soft lockup in sys_openat run #5: crashed: BUG: soft lockup in dput run #6: crashed: BUG: soft lockup in dput run #7: crashed: BUG: soft lockup in dput run #8: crashed: BUG: soft lockup in dput run #9: crashed: BUG: soft lockup in dput representative crash: BUG: soft lockup in dput, types: [HANG] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [ATOMIC_SLEEP LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3368eaf4d64845d657d0f68c35ed790381fb466dcbadb4d168cb38399edbc2e2 run #0: crashed: BUG: soft lockup in rcu_core_si run #1: crashed: BUG: soft lockup in dput run #2: crashed: BUG: soft lockup in ipv6_rcv run #3: crashed: BUG: soft lockup in bpf_prog_free_deferred run #4: crashed: BUG: soft lockup in sk_psock_destroy run #5: crashed: BUG: soft lockup in dput run #6: crashed: BUG: soft lockup in dput run #7: crashed: BUG: soft lockup in dput run #8: crashed: BUG: soft lockup in dput run #9: crashed: BUG: soft lockup in fsnotify_mark_destroy_workfn representative crash: BUG: soft lockup in rcu_core_si, 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 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: af5d30d128373fb044fdc5a6a53a39cf8f6acb136abb3f506efd91ea5d68939e run #0: crashed: BUG: soft lockup in dput run #1: crashed: BUG: soft lockup in dput run #2: crashed: BUG: soft lockup in dput run #3: crashed: BUG: soft lockup in kauditd_thread run #4: crashed: BUG: soft lockup in ipv6_rcv run #5: crashed: BUG: soft lockup in dput run #6: crashed: BUG: soft lockup in sys_readlink run #7: crashed: BUG: soft lockup in dput run #8: crashed: BUG: soft lockup in dput run #9: crashed: BUG: soft lockup in kauditd_thread representative crash: BUG: soft lockup in dput, types: [HANG] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fc67a779244e362c8259efc6c229204d1a0e4a3f45780c8cc97d1afeb3bc21ca run #0: crashed: BUG: soft lockup in ipv6_rcv run #1: crashed: BUG: soft lockup in rcu_core_si run #2: crashed: BUG: soft lockup in dput run #3: crashed: BUG: soft lockup in dput run #4: crashed: BUG: soft lockup in rcu_core_si run #5: crashed: BUG: soft lockup in sk_psock_destroy run #6: crashed: BUG: soft lockup in dput run #7: crashed: BUG: soft lockup in bpf_prog_free_deferred run #8: crashed: BUG: soft lockup in bpf_prog_free_deferred run #9: crashed: BUG: soft lockup in security_file_free representative crash: BUG: soft lockup in ipv6_rcv, types: [HANG] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 failed building 993bed180178156a70afdafe8aaf23a117107352: 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 [ATOMIC_SLEEP LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing current HEAD 79bd336c7a94039e3d325195b978a04f3b89d2f3 testing commit 79bd336c7a94039e3d325195b978a04f3b89d2f3 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4828efbca66ece87ae7a8cc854d73fccb24958d3ae56cc3d5d7d06291561e174 run #0: crashed: BUG: soft lockup in ipv6_rcv run #1: crashed: BUG: soft lockup in bpf_prog_free_deferred run #2: crashed: BUG: soft lockup in kauditd_thread run #3: crashed: BUG: soft lockup in security_file_free run #4: crashed: BUG: soft lockup in net_rx_action run #5: crashed: BUG: soft lockup in sock_read_iter run #6: crashed: BUG: soft lockup in dput run #7: crashed: BUG: soft lockup in ipv6_rcv run #8: crashed: BUG: soft lockup in dput run #9: crashed: BUG: soft lockup in dput representative crash: BUG: soft lockup in ipv6_rcv, types: [HANG] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 1h20m17.703682651s (build: 19m55.119570354s, test: 58m54.089805532s) crash still not fixed or there were kernel test errors commit msg: Merge a585faf05915 ("fs/ntfs3: Fix oob in ntfs_listxattr") into android-mainline crash: BUG: soft lockup in ipv6_rcv watchdog: BUG: soft lockup - CPU#1 stuck for 144s! [kworker/1:1:42] Modules linked in: CPU: 1 PID: 42 Comm: kworker/1:1 Not tainted 5.15.149-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Workqueue: mld mld_ifc_work 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 1d 02 35 01 f4 c3 66 90 0f 00 2d 12 02 35 01 fb f4 90 8b 05 0a 3f d7 01 83 f8 ff 74 06 85 c0 0f 95 c0 c3 55 48 89 RSP: 0018:ffffc900000eca70 EFLAGS: 00000246 RAX: 0000000000000003 RBX: ffff888237d2cb00 RCX: 0000000000000008 RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffff8881083c4d28 RBP: ffffc900000ecab0 R08: ffff88823fff0240 R09: 0000000000000000 R10: 0000000000000001 R11: ffff888237d2cb00 R12: ffff8881083c4d28 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000100 FS: 0000000000000000(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020005c60 CR3: 000000011071a000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 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_map_delete net/core/sock_map.c:416 [inline] sock_map_delete_elem+0x29/0x70 net/core/sock_map.c:448 bpf_prog_346bdb13810e5499+0x42/0x764 bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline] __bpf_prog_run include/linux/filter.h:625 [inline] bpf_prog_run include/linux/filter.h:632 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline] bpf_trace_run3+0x3b/0xa0 kernel/trace/bpf_trace.c:1918 __bpf_trace_kmem_cache_free+0x9/0x10 include/trace/events/kmem.h:138 trace_kmem_cache_free include/trace/events/kmem.h:138 [inline] kmem_cache_free+0x261/0x2c0 mm/slub.c:3536 kfree_skbmem+0x49/0x80 net/core/skbuff.c:701 __kfree_skb net/core/skbuff.c:758 [inline] consume_skb net/core/skbuff.c:930 [inline] consume_skb+0x42/0xc0 net/core/skbuff.c:924 __sk_msg_free+0xc9/0x190 net/core/skmsg.c:205 sk_msg_free net/core/skmsg.c:218 [inline] __sk_psock_purge_ingress_msg net/core/skmsg.c:768 [inline] __sk_psock_zap_ingress net/core/skmsg.c:786 [inline] sk_psock_stop+0x13a/0x180 net/core/skmsg.c:804 sk_psock_drop+0x5a/0x100 net/core/skmsg.c:843 sk_psock_put include/linux/skmsg.h:458 [inline] sock_map_unref+0x6a/0x70 net/core/sock_map.c:183 __sock_map_delete net/core/sock_map.c:422 [inline] sock_map_delete_elem+0x3f/0x70 net/core/sock_map.c:448 bpf_prog_346bdb13810e5499+0x42/0x764 bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline] __bpf_prog_run include/linux/filter.h:625 [inline] bpf_prog_run include/linux/filter.h:632 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline] bpf_trace_run3+0x3b/0xa0 kernel/trace/bpf_trace.c:1918 __bpf_trace_kmem_cache_free+0x9/0x10 include/trace/events/kmem.h:138 trace_kmem_cache_free include/trace/events/kmem.h:138 [inline] kmem_cache_free+0x261/0x2c0 mm/slub.c:3536 kfree_skbmem+0x49/0x80 net/core/skbuff.c:701 __kfree_skb net/core/skbuff.c:758 [inline] kfree_skb_reason.part.0+0x39/0xe0 net/core/skbuff.c:778 kfree_skb_reason+0x19/0x50 include/linux/refcount.h:279 kfree_skb+0xb/0x10 net/core/skbuff.c:792 ip6_mc_input+0xd6/0xe0 net/ipv6/ip6_input.c:572 dst_input include/net/dst.h:454 [inline] ip6_rcv_finish net/ipv6/ip6_input.c:79 [inline] ip6_rcv_finish net/ipv6/ip6_input.c:69 [inline] NF_HOOK include/linux/netfilter.h:305 [inline] NF_HOOK include/linux/netfilter.h:299 [inline] ipv6_rcv+0xd2/0xe0 net/ipv6/ip6_input.c:300 __netif_receive_skb_one_core+0x51/0x70 net/core/dev.c:5492 __netif_receive_skb+0x10/0x50 net/core/dev.c:5606 process_backlog+0xa6/0x150 net/core/dev.c:6483 __napi_poll+0x24/0x160 net/core/dev.c:7042 napi_poll net/core/dev.c:7109 [inline] net_rx_action+0xdb/0x220 net/core/dev.c:7196 __do_softirq+0xff/0x2fc kernel/softirq.c:565 do_softirq kernel/softirq.c:452 [inline] do_softirq+0x6f/0x90 kernel/softirq.c:439 __local_bh_enable_ip+0x5a/0x60 kernel/softirq.c:379 local_bh_enable include/linux/bottom_half.h:32 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:775 [inline] ip6_finish_output2+0x1d3/0x5d0 net/ipv6/ip6_output.c:127 __ip6_finish_output.part.0+0x9a/0x1f0 net/ipv6/ip6_output.c:197 __ip6_finish_output net/ipv6/ip6_output.c:212 [inline] ip6_finish_output+0xa7/0x100 net/ipv6/ip6_output.c:207 NF_HOOK_COND include/linux/netfilter.h:294 [inline] ip6_output+0x6b/0x130 net/ipv6/ip6_output.c:230 dst_output include/net/dst.h:444 [inline] NF_HOOK include/linux/netfilter.h:305 [inline] NF_HOOK include/linux/netfilter.h:299 [inline] mld_sendpack+0x21e/0x2d0 net/ipv6/mcast.c:1820 mld_send_cr net/ipv6/mcast.c:2121 [inline] mld_ifc_work+0x18f/0x470 net/ipv6/mcast.c:2653 process_one_work+0x199/0x340 kernel/workqueue.c:2325 worker_thread+0x4e/0x340 kernel/workqueue.c:2472 kthread+0x13a/0x160 kernel/kthread.c:337 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 361 Comm: syz-executor.0 Not tainted 5.15.149-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 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 1d 02 35 01 f4 c3 66 90 0f 00 2d 12 02 35 01 fb f4 90 8b 05 0a 3f d7 01 83 f8 ff 74 06 85 c0 0f 95 c0 c3 55 48 89 RSP: 0018:ffffc90000393cd8 EFLAGS: 00000246 RAX: 0000000000000001 RBX: ffff888237c2cb00 RCX: 0000000000000001 RDX: 0000000000000002 RSI: 0000000000000001 RDI: ffff888237c2cb14 RBP: ffffc90000393d18 R08: 0000000000000000 R09: 0000000000000000 R10: ffff888109f52c30 R11: 0000000000000001 R12: ffff8881083c4d28 R13: ffff888237d2cb00 R14: ffff888237c2cb14 R15: 0000000000000001 FS: 00005555565ab480(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002000d000 CR3: 00000001106d8000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 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_map_delete net/core/sock_map.c:416 [inline] sock_map_delete_elem+0x29/0x70 net/core/sock_map.c:448 bpf_prog_346bdb13810e5499+0x42/0x764 bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline] __bpf_prog_run include/linux/filter.h:625 [inline] bpf_prog_run include/linux/filter.h:632 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline] bpf_trace_run3+0x3b/0xa0 kernel/trace/bpf_trace.c:1918 __bpf_trace_kmem_cache_free+0x9/0x10 include/trace/events/kmem.h:138 trace_kmem_cache_free include/trace/events/kmem.h:138 [inline] kmem_cache_free+0x261/0x2c0 mm/slub.c:3536 __d_free fs/dcache.c:273 [inline] dentry_free+0x28/0x60 fs/dcache.c:350 __dentry_kill+0x148/0x1c0 fs/dcache.c:596 dentry_kill fs/dcache.c:708 [inline] dput+0x1c9/0x3d0 fs/dcache.c:889 __fput+0x129/0x260 fs/file_table.c:288 ____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:175 [inline] exit_to_user_mode_prepare+0x140/0x150 kernel/entry/common.c:208 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline] syscall_exit_to_user_mode+0x21/0x40 kernel/entry/common.c:301 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7fac49133d5a 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:00007ffe8e110730 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007fac49133d5a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000226 R08: 0000001b31860000 R09: 00007fac49262f8c R10: 00007ffe8e110880 R11: 0000000000000293 R12: 00007fac48cb8b00 R13: ffffffffffffffff R14: 00007fac48cb7000 R15: 000000000000ad14