ci2 starts bisection 2024-08-19 21:52:41.876079479 +0000 UTC m=+44612.124808453
bisecting fixing commit since 5d96939590c0122be2138255c921e57e3f78b7bd
building syzkaller on 3ba885bcb66dec1678d8842ddeb6805786d32a3f
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: c09b62765ee27ce45e001cfa6e535a124af2e087ae5567db8f110a5001757b08
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 inet_release
run #3: crashed: BUG: soft lockup in bpf_map_free_deferred
run #4: crashed: BUG: soft lockup in sk_psock_destroy
run #5: crashed: BUG: soft lockup in rcu_core_si
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 inet_release
run #9: crashed: BUG: soft lockup in inet_release
run #10: crashed: BUG: soft lockup in kauditd_thread
run #11: crashed: BUG: soft lockup in sys_recvmsg
run #12: crashed: BUG: soft lockup in inet_release
run #13: crashed: BUG: soft lockup in rcu_core_si
run #14: crashed: BUG: soft lockup in sys_syslog
run #15: crashed: BUG: soft lockup in rcu_core_si
run #16: crashed: BUG: soft lockup in bpf_map_free_deferred
run #17: crashed: BUG: soft lockup in ipv6_rcv
run #18: crashed: BUG: soft lockup in inet_release
run #19: crashed: BUG: soft lockup in sock_read_iter
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 5d96939590c0122be2138255c921e57e3f78b7bd gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 0646b5d1cd220c1ecb8c3fd880c5dabe87941f00ea22b9e1ba2b426a3264bc01
run #0: crashed: BUG: soft lockup in bpf_map_free_deferred
run #1: crashed: BUG: soft lockup in inet_release
run #2: crashed: BUG: soft lockup in addrconf_dad_work
run #3: crashed: BUG: soft lockup in inet_release
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 sys_syslog
run #7: crashed: BUG: soft lockup in inet_release
run #8: crashed: BUG: soft lockup in rcu_core_si
run #9: crashed: no output from test machine
representative crash: BUG: soft lockup in bpf_map_free_deferred, types: [HANG]
the bug reproduces without the instrumentation
disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], 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 [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: 7214a23bb94aca6c1057cf4fdd95f073e822d022aef81d5159cb4e954bcec922
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 inet_release
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 sys_unlink
run #7: crashed: BUG: soft lockup in sys_unlink
run #8: crashed: BUG: soft lockup in bpf_map_free_deferred
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 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: 0024b0f2cc6b0e95c363bc50ab3e56936ec5877d100ebbce6de754a48a71509b
run #0: crashed: BUG: soft lockup in bpf_map_free_deferred
run #1: crashed: BUG: soft lockup in sk_psock_destroy
run #2: crashed: BUG: soft lockup in inet_release
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 sock_read_iter
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 inet_release
run #9: crashed: BUG: soft lockup in inet_release
representative crash: BUG: soft lockup in bpf_map_free_deferred, types: [HANG]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK], 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: a266a5a18e8e89d07ee6ce8c92200e495be2c50a62aff253a2bb52812a45f6cf
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 bpf_map_free_deferred
run #4: crashed: BUG: soft lockup in inotify_read
run #5: crashed: BUG: soft lockup in rcu_core_si
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 kauditd_thread
run #9: crashed: BUG: soft lockup in ipv6_rcv
representative crash: BUG: soft lockup in inet_release, types: [HANG]
the chunk can be dropped
testing without sub-chunk 4/5
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: afc454a05ec2eb54fb3a01a6164ab7a3812f3a7c948ca7b2f53bfae4b1c12e81
run #0: crashed: BUG: soft lockup in destroy_list_workfn
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 ipv6_rcv
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 rcu_core_si
run #7: crashed: BUG: soft lockup in ipv6_rcv
run #8: crashed: BUG: soft lockup in kauditd_thread
run #9: crashed: no output from test machine
representative crash: BUG: soft lockup in destroy_list_workfn, types: [HANG]
the chunk can be dropped
testing without sub-chunk 5/5
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
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 [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing current HEAD 29d153aabd54226781d6165592fbcfa1e00e571c
testing commit 29d153aabd54226781d6165592fbcfa1e00e571c gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: bdac83ea39aeafed69c2995405fcee18d76c2fe643e6bc51d86303706104fafc
run #0: crashed: BUG: soft lockup in inet_release
run #1: crashed: BUG: soft lockup in ipv6_rcv
run #2: crashed: BUG: soft lockup in kauditd_thread
run #3: crashed: BUG: soft lockup in wg_packet_handshake_receive_worker
run #4: crashed: BUG: soft lockup in kauditd_thread
run #5: crashed: BUG: soft lockup in kauditd_thread
run #6: crashed: BUG: soft lockup in x64_sys_call
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 mld_ifc_work
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: 1h42m40.551336239s (build: 45m33.800931484s, test: 55m25.156352567s)
crash still not fixed or there were kernel test errors
commit msg: Merge 5.15.156 into android13-5.15-lts
crash: BUG: soft lockup in inet_release
RBP: 00007f22b4b43980 R08: 00007f22b4996000 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000293 R12: 000000000000d1ec
R13: 000000000000cfc6 R14: 00007ffff2fd6c60 R15: 00007f22b49cacb0
 </TASK>
watchdog: BUG: soft lockup - CPU#0 stuck for 225s! [syz-executor.0:366]
Modules linked in:
CPU: 0 PID: 366 Comm: syz-executor.0 Not tainted 5.15.156-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 ad f3 34 01 f4 c3 66 90 0f 00 2d a2 f3 34 01 fb f4 <c3> 90 8b 05 3a 21 d7 01 83 f8 ff 74 06 85 c0 0f 95 c0 c3 55 48 89
RSP: 0018:ffffc9000033bd08 EFLAGS: 00000246
RAX: 0000000000000003 RBX: ffff888237c2cb00 RCX: 0000000000000008
RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffff88810daeaa90
RBP: ffffc9000033bd48 R08: ffff88823fff0e40 R09: 0000000000000000
R10: 0000000000000001 R11: ffff888237c2cb00 R12: ffff88810daeaa90
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000100
FS:  0000555557075480(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f22b4b3e0c0 CR3: 000000010fd71000 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+0x22/0x150 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: 0033:0x7f22b4a12d9a
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:00007ffff2fd6aa0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007f22b4a12d9a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007f22b4b43980 R08: 00007f22b4996000 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000293 R12: 000000000000d1ec
R13: 000000000000cfc6 R14: 00007ffff2fd6c60 R15: 00007f22b49cacb0
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 30 Comm: kauditd Not tainted 5.15.156-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: 0000000000003587 RSI: 0000000000000003 RDI: ffff888110f5c9f8
RBP: ffffc90000103af8 R08: ffff88823fff0f40 R09: 0000000000000000
R10: 0000000000000001 R11: ffff888237d2cb00 R12: ffff888110f5c9f8
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000100
FS:  0000000000000000(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005579fc8974a0 CR3: 00000001023e0000 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+0x5f/0x120 net/core/sock_map.c:943
 bpf_prog_2c29ac5cdc6b1842+0x3a/0x8cc
 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/0x8cc
 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
 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:300
 </TASK>