ci2 starts bisection 2024-07-31 12:22:39.636952014 +0000 UTC m=+74624.142367556
bisecting fixing commit since ad06eaf051cd0bdfd330f378c91f537107ce938e
building syzkaller on af24b0505c748561efb50f1d03c824d6642f6c0b
ensuring issue is reproducible on original commit ad06eaf051cd0bdfd330f378c91f537107ce938e

testing commit ad06eaf051cd0bdfd330f378c91f537107ce938e gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: cbebe39a587fa92c7c9f9b3db9badea89c0ad0be7fb86a3641293d590901ccd8
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 rcu_core_si
run #3: crashed: BUG: soft lockup in rcu_core_si
run #4: crashed: BUG: soft lockup in bpf_map_free_deferred
run #5: crashed: BUG: soft lockup in sys_syslog
run #6: crashed: BUG: soft lockup in rcu_core_si
run #7: crashed: BUG: soft lockup in inet_release
run #8: crashed: BUG: soft lockup in rcu_core_si
run #9: crashed: BUG: soft lockup in bpf_map_free_deferred
run #10: crashed: BUG: soft lockup in sys_syslog
run #11: crashed: BUG: soft lockup in inet_release
run #12: crashed: BUG: soft lockup in kauditd_thread
run #13: crashed: BUG: soft lockup in sys_openat
run #14: crashed: BUG: soft lockup in ipv6_rcv
run #15: crashed: BUG: soft lockup in sys_recvmsg
run #16: crashed: BUG: soft lockup in inet_release
run #17: crashed: BUG: soft lockup in ipv6_rcv
run #18: crashed: BUG: soft lockup in sock_read_iter
run #19: crashed: no output from test machine
representative crash: BUG: soft lockup in inet_release, types: [HANG]
check whether we can drop unnecessary instrumentation
disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit ad06eaf051cd0bdfd330f378c91f537107ce938e gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: f569449c6de86c30f92c7663323a40f47319909a10bba6eedd6437c40115f33a
run #0: crashed: BUG: soft lockup in sk_psock_destroy
run #1: crashed: BUG: soft lockup in rcu_core_si
run #2: crashed: BUG: soft lockup in bpf_prog_free_deferred
run #3: crashed: BUG: soft lockup in rcu_core_si
run #4: crashed: BUG: soft lockup in ipv6_rcv
run #5: crashed: BUG: soft lockup in inet_release
run #6: crashed: BUG: soft lockup in kauditd_thread
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 inet_release
representative crash: BUG: soft lockup in sk_psock_destroy, types: [HANG]
the bug reproduces without the instrumentation
disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK], 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 [BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN], they are not needed
testing commit ad06eaf051cd0bdfd330f378c91f537107ce938e gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 567bf4aad4c3edd2145adf80eaac10f891238312dca61cd4809d23d4e4250dcc
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 bpf_prog_free_deferred
run #4: crashed: BUG: soft lockup in sock_read_iter
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 rcu_core_si
run #8: crashed: BUG: soft lockup in kauditd_thread
run #9: crashed: BUG: soft lockup in inet_release
representative crash: BUG: soft lockup in inet_release, 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 ad06eaf051cd0bdfd330f378c91f537107ce938e gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 4f984d0626644ba34d6d494eed0af9f39542bf6e5e65e836a7c7ef9b25126d3f
run #0: crashed: BUG: soft lockup in inet_release
run #1: crashed: BUG: soft lockup in rcu_core_si
run #2: crashed: BUG: soft lockup in bpf_prog_free_deferred
run #3: crashed: BUG: soft lockup in inet_release
run #4: crashed: BUG: soft lockup in inet_release
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 sock_read_iter
run #8: crashed: BUG: soft lockup in sock_read_iter
run #9: crashed: no output from test machine
representative crash: BUG: soft lockup in inet_release, 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 ad06eaf051cd0bdfd330f378c91f537107ce938e gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 998b446f1f4c1319c893af11ff5cf4b664e9597178a4dbe4fbaed26e58e84a88
run #0: crashed: BUG: soft lockup in inet_release
run #1: crashed: BUG: soft lockup in bpf_prog_free_deferred
run #2: crashed: BUG: soft lockup in bpf_prog_free_deferred
run #3: crashed: BUG: soft lockup in sys_syslog
run #4: crashed: BUG: soft lockup in inet_release
run #5: crashed: BUG: soft lockup in rcu_core_si
run #6: crashed: BUG: soft lockup in sys_openat
run #7: crashed: BUG: soft lockup in ipv6_rcv
run #8: crashed: BUG: soft lockup in sock_read_iter
run #9: crashed: no output from test machine
representative crash: BUG: soft lockup in inet_release, types: [HANG]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [ATOMIC_SLEEP LEAK UBSAN BUG KASAN LOCKDEP], they are not needed
testing commit ad06eaf051cd0bdfd330f378c91f537107ce938e gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: f270381b1cf710efad6aed87d04d7015375f47475c7ea896c653cb42a4447555
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 bpf_map_free_deferred
run #3: crashed: BUG: soft lockup in inet_release
run #4: crashed: BUG: soft lockup in inet_release
run #5: crashed: BUG: soft lockup in mld_ifc_work
run #6: crashed: BUG: soft lockup in inet_release
run #7: crashed: BUG: soft lockup in rcu_core_si
run #8: crashed: BUG: soft lockup in inet_release
run #9: crashed: BUG: soft lockup in ipv6_rcv
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 [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK], they are not needed
testing commit ad06eaf051cd0bdfd330f378c91f537107ce938e gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
failed building ad06eaf051cd0bdfd330f378c91f537107ce938e: 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 [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing current HEAD d0a6506ecafdf68213f4bf0c7c2069301a34a510
testing commit d0a6506ecafdf68213f4bf0c7c2069301a34a510 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 80abafec86a11774771f3bf3f3db338e9c83cec3f830e664303f32aad0f9c5f6
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 rcu_core_si
run #3: crashed: BUG: soft lockup in rcu_core_si
run #4: crashed: BUG: soft lockup in inet_release
run #5: crashed: BUG: soft lockup in sys_recvmsg
run #6: crashed: BUG: soft lockup in sys_unlink
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 bpf_map_free_deferred
representative crash: BUG: soft lockup in inet_release, types: [HANG]
crash still not fixed/happens on the oldest tested release
revisions tested: 7, total time: 1h54m43.63739595s (build: 1h1m41.521625013s, test: 51m1.189650997s)
crash still not fixed or there were kernel test errors
commit msg: Merge cad6da86ca98 ("ALSA: usb-audio: Sort quirk table entries") into android13-5.15-lts
crash: BUG: soft lockup in inet_release
watchdog: BUG: soft lockup - CPU#0 stuck for 143s! [syz-executor.0:369]
Modules linked in:
CPU: 0 PID: 369 Comm: syz-executor.0 Not tainted 5.15.151-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
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 fd 01 35 01 f4 c3 66 90 0f 00 2d f2 01 35 01 fb f4 <c3> 90 8b 05 ea 3e d7 01 83 f8 ff 74 06 85 c0 0f 95 c0 c3 55 48 89
RSP: 0018:ffffc900003bbd08 EFLAGS: 00000246
RAX: 0000000000000003 RBX: ffff888237c2cb00 RCX: 0000000000000008
RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffff88810f860290
RBP: ffffc900003bbd48 R08: ffff88823fff0dc0 R09: 0000000000000000
R10: 0000000000000001 R11: ffff888237c2cb00 R12: ffff88810f860290
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000100
FS:  0000555555565480(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8434c17988 CR3: 000000010f9a1000 CR4: 00000000003506b0
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
 spin_lock_bh include/linux/spinlock.h:368 [inline]
 sk_psock_link_pop+0x1b/0x80 net/core/skmsg.c:753
 sock_map_remove_links+0x22/0x180 net/core/sock_map.c:1504
 sock_map_close+0xab/0x120 net/core/sock_map.c:1546
 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: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: 0033:0x7f8434ae6d9a
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:00007ffc48b9c550 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007f8434ae6d9a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007f8434c17980 R08: 00007f8434a6a000 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000293 R12: 000000000000e3e0
R13: 000000000000e1ba R14: 00007ffc48b9c710 R15: 00007f8434a9ecb0
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 30 Comm: kauditd Not tainted 5.15.151-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:434 [inline]
RIP: 0010:__pv_queued_spin_lock_slowpath+0xfa/0x2e0 kernel/locking/qspinlock.c:508
Code: be 01 00 00 00 41 bf 00 01 00 00 3c 02 0f 94 c0 0f b6 c0 48 89 45 c8 c6 43 14 00 ba 00 80 00 00 41 c6 44 24 01 01 eb 0b f3 90 <83> ea 01 0f 84 74 01 00 00 41 0f b6 04 24 84 c0 75 ec 44 89 f8 f0
RSP: 0018:ffffc90000103ac0 EFLAGS: 00000206
RAX: 0000000000000003 RBX: ffff888237d2cb00 RCX: 0000000000000008
RDX: 0000000000000402 RSI: 0000000000000003 RDI: ffff8881102c2b88
RBP: ffffc90000103af8 R08: ffff88823fff0fc0 R09: 0000000000000000
R10: 0000000000000001 R11: ffff888237d2cb00 R12: ffff8881102c2b88
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000100
FS:  0000000000000000(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8434c120c0 CR3: 0000000101bbc000 CR4: 00000000003506a0
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
 sock_hash_delete_elem+0x51/0x100 net/core/sock_map.c:937
 bpf_prog_2c29ac5cdc6b1842+0x3a/0x420
 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_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+0xc6/0x100 net/core/sock_map.c:941
 bpf_prog_2c29ac5cdc6b1842+0x3a/0x420
 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_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
 skb_free_head+0x64/0x80 net/core/skbuff.c:656
 skb_release_data+0x12a/0x140 net/core/skbuff.c:678
 skb_release_all net/core/skbuff.c:743 [inline]
 __kfree_skb net/core/skbuff.c:757 [inline]
 kfree_skb_reason.part.0+0x31/0xe0 net/core/skbuff.c:778
 kfree_skb_reason+0x19/0x50 include/linux/refcount.h:279
 kfree_skb+0xb/0x10 net/core/skbuff.c:792
 kauditd_hold_skb+0x69/0xc0 kernel/audit.c:614
 kauditd_send_queue+0x109/0x150 kernel/audit.c:769
 kauditd_thread+0x255/0x2f0 kernel/audit.c:893
 kthread+0x13a/0x160 kernel/kthread.c:337
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
 </TASK>