ci2 starts bisection 2024-09-12 09:15:09.368447341 +0000 UTC m=+100.099376570
bisecting fixing commit since db06c48ab67eb5db1ac64a0210d77742e335537a
building syzkaller on 215bec2d0092e093aeaa7baeea4b670277102694
ensuring issue is reproducible on original commit db06c48ab67eb5db1ac64a0210d77742e335537a

testing commit db06c48ab67eb5db1ac64a0210d77742e335537a gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: aa35be98052cba780f0ebc1663e3c9c773ae7394007924ae763957418e888b96
run #0: crashed: BUG: soft lockup in addrconf_dad_work
run #1: crashed: BUG: soft lockup in sys_bpf
run #2: crashed: BUG: soft lockup in rcu_core_si
run #3: crashed: BUG: soft lockup in cleanup_net
run #4: crashed: BUG: soft lockup in sys_lsetxattr
run #5: crashed: BUG: soft lockup in sys_bpf
run #6: crashed: BUG: soft lockup in sys_bpf
run #7: crashed: BUG: soft lockup in sys_unlink
run #8: crashed: BUG: soft lockup in sys_bpf
run #9: crashed: BUG: soft lockup in sys_syslog
run #10: crashed: BUG: soft lockup in sys_bpf
run #11: crashed: BUG: soft lockup in ipv6_rcv
run #12: crashed: BUG: soft lockup in sys_bpf
run #13: crashed: BUG: soft lockup in sys_syslog
run #14: crashed: BUG: soft lockup in sys_bpf
run #15: crashed: BUG: soft lockup in rcu_core_si
run #16: crashed: BUG: soft lockup in ip_rcv
run #17: crashed: BUG: soft lockup in sys_bpf
run #18: crashed: BUG: soft lockup in sys_bpf
run #19: crashed: BUG: soft lockup in sys_bpf
representative crash: BUG: soft lockup in addrconf_dad_work, 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 db06c48ab67eb5db1ac64a0210d77742e335537a gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 36a5e9b49bd2e39ff90be2452a81d668d95d2f5d18a1265a3e4ee03b8e868e56
run #0: crashed: BUG: soft lockup in sys_unlink
run #1: crashed: BUG: soft lockup in mld_ifc_work
run #2: crashed: BUG: soft lockup in sys_rename
run #3: crashed: BUG: soft lockup in sys_syslog
run #4: crashed: BUG: soft lockup in sys_bpf
run #5: crashed: BUG: soft lockup in sys_bpf
run #6: crashed: BUG: soft lockup in sys_bpf
run #7: crashed: BUG: soft lockup in sys_bpf
run #8: crashed: BUG: soft lockup in sys_bpf
run #9: crashed: no output from test machine
representative crash: BUG: soft lockup in sys_unlink, types: [HANG]
the bug reproduces without the instrumentation
disabling configs for [ATOMIC_SLEEP LEAK UBSAN BUG KASAN LOCKDEP], 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 [BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN], they are not needed
testing commit db06c48ab67eb5db1ac64a0210d77742e335537a gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 3694fe30c79abdd350367545482f2924ec5a331ca70a251ac72c6b7732255f12
run #0: crashed: BUG: soft lockup in sys_bpf
run #1: crashed: BUG: soft lockup in sys_bpf
run #2: crashed: BUG: soft lockup in sys_unlink
run #3: crashed: BUG: soft lockup in sys_bpf
run #4: crashed: BUG: soft lockup in rcu_core_si
run #5: crashed: BUG: soft lockup in cleanup_net
run #6: crashed: BUG: soft lockup in sock_read_iter
run #7: crashed: BUG: soft lockup in sys_bpf
run #8: crashed: no output from test machine
run #9: crashed: no output from test machine
representative crash: BUG: soft lockup in sys_bpf, types: [HANG]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK], they are not needed
testing commit db06c48ab67eb5db1ac64a0210d77742e335537a gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: d76028afcafedd43c53fed3036cb49a2727b614bb5e14265c29743a2516a0684
run #0: crashed: lost connection to test machine
run #1: crashed: BUG: soft lockup in ipv6_rcv
run #2: crashed: BUG: soft lockup in sys_bpf
run #3: crashed: BUG: soft lockup in sys_syslog
run #4: crashed: BUG: soft lockup in sock_read_iter
run #5: crashed: BUG: soft lockup in sys_bpf
run #6: crashed: BUG: soft lockup in sys_bpf
run #7: crashed: no output from test machine
run #8: crashed: no output from test machine
run #9: crashed: no output from test machine
representative crash: BUG: soft lockup in ipv6_rcv, types: [HANG UNKNOWN]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN], they are not needed
testing commit db06c48ab67eb5db1ac64a0210d77742e335537a gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: ccc03640c79e65a50cb580888505b5d88f0de1dabb8355d4151d9d0a4b362c94
run #0: crashed: BUG: soft lockup in raw_destroy
run #1: crashed: BUG: soft lockup in ipv6_rcv
run #2: crashed: BUG: soft lockup in sys_bpf
run #3: crashed: BUG: soft lockup in sys_bpf
run #4: crashed: BUG: soft lockup in sys_bpf
run #5: crashed: BUG: soft lockup in sys_bpf
run #6: crashed: BUG: soft lockup in sys_syslog
run #7: crashed: BUG: soft lockup in sys_bpf
run #8: crashed: BUG: soft lockup in cleanup_net
run #9: crashed: BUG: soft lockup in sys_bpf
representative crash: BUG: soft lockup in raw_destroy, 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 db06c48ab67eb5db1ac64a0210d77742e335537a gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 14b509eccc33fcde94de6a6b49eb9ee9f1a794fa9dc150033fb2851f1e60c853
run #0: crashed: BUG: soft lockup in sys_bpf
run #1: crashed: BUG: soft lockup in sys_bpf
run #2: crashed: BUG: soft lockup in sys_bpf
run #3: crashed: BUG: soft lockup in ipv6_rcv
run #4: crashed: BUG: soft lockup in cleanup_net
run #5: crashed: BUG: soft lockup in addrconf_dad_work
run #6: crashed: BUG: soft lockup in ipv6_rcv
run #7: crashed: BUG: soft lockup in sys_sendmsg
run #8: crashed: BUG: soft lockup in sys_bpf
run #9: crashed: no output from test machine
representative crash: BUG: soft lockup in sys_bpf, 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 db06c48ab67eb5db1ac64a0210d77742e335537a gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
failed building db06c48ab67eb5db1ac64a0210d77742e335537a: 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 [BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN], 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: 49096810ce54de6b3e5fab553db90c5c791234d3760af3a65e909f99bf89f27e
run #0: crashed: BUG: soft lockup in x64_sys_call
run #1: crashed: BUG: soft lockup in x64_sys_call
run #2: crashed: BUG: soft lockup in x64_sys_call
run #3: crashed: BUG: soft lockup in x64_sys_call
run #4: crashed: BUG: soft lockup in x64_sys_call
run #5: crashed: BUG: soft lockup in x64_sys_call
run #6: crashed: BUG: soft lockup in x64_sys_call
run #7: crashed: BUG: soft lockup in x64_sys_call
run #8: crashed: BUG: soft lockup in x64_sys_call
run #9: crashed: no output from test machine
representative crash: BUG: soft lockup in x64_sys_call, types: [HANG]
crash still not fixed/happens on the oldest tested release
revisions tested: 7, total time: 3h47m25.032199599s (build: 35m26.708469527s, test: 1h15m43.935720278s)
crash still not fixed or there were kernel test errors
commit msg: Revert "binder: fix max_thread type inconsistency"
crash: BUG: soft lockup in x64_sys_call
watchdog: BUG: soft lockup - CPU#0 stuck for 225s! [udevd:398]
Modules linked in:
CPU: 0 PID: 398 Comm: udevd 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:ffffc9000038b930 EFLAGS: 00000246
RAX: 0000000000000001 RBX: ffff888237c2cb00 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff888237c2cb14
RBP: ffffc9000038b970 R08: 0000000000000000 R09: ffffc9000038bb28
R10: 0000000055e3e380 R11: 00000000000302cc R12: ffff8881183e0528
R13: ffff888237d2cb00 R14: ffff888237c2cb14 R15: 0000000000000001
FS:  00007f9a5db53c80(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe083e5e18 CR3: 0000000117b20000 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
 __sock_map_delete+0x25/0x70 net/core/sock_map.c:419
 sock_map_delete_elem+0x1d/0x30 net/core/sock_map.c:451
 bpf_prog_2c29ac5cdc6b1842+0x3a/0x184
 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
 context_destroy security/selinux/ss/context.h:177 [inline]
 security_compute_sid.part.0+0x718/0x7e0 security/selinux/ss/services.c:1913
 security_compute_sid security/selinux/ss/services.c:1935 [inline]
 security_transition_sid+0x2a/0x40 security/selinux/ss/services.c:1936
 selinux_determine_inode_label+0x77/0xa0 security/selinux/hooks.c:1822
 may_create+0xca/0x130 security/selinux/hooks.c:1857
 selinux_inode_create+0xe/0x10 security/selinux/hooks.c:3096
 security_inode_create+0x32/0x50 security/security.c:1242
 may_o_create fs/namei.c:3296 [inline]
 lookup_open fs/namei.c:3425 [inline]
 open_last_lookups fs/namei.c:3532 [inline]
 path_openat+0xa8d/0x1230 fs/namei.c:3739
 do_filp_open+0xb1/0x150 fs/namei.c:3769
 do_sys_openat2+0x9c/0x250 fs/open.c:1234
 do_sys_open fs/open.c:1250 [inline]
 __do_sys_openat fs/open.c:1266 [inline]
 __se_sys_openat fs/open.c:1261 [inline]
 __x64_sys_openat+0x51/0x90 fs/open.c:1261
 x64_sys_call+0x2eb/0x990 arch/x86/include/generated/asm/syscalls_64.h:258
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x33/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f9a5dc7e9a4
Code: 24 20 48 8d 44 24 30 48 89 44 24 28 64 8b 04 25 18 00 00 00 85 c0 75 2c 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 60 48 8b 15 55 a4 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffd1a17b590 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f9a5dc7e9a4
RDX: 0000000000080241 RSI: 00007ffd1a17bad8 RDI: 00000000ffffff9c
RBP: 00007ffd1a17bad8 R08: 0000000000000004 R09: 0000000000000001
R10: 00000000000001b6 R11: 0000000000000246 R12: 0000000000080241
R13: 000055f7da21772e R14: 0000000000000001 R15: 000055f7da232160
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 443 Comm: syz.0.15 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:ffffc90000497b38 EFLAGS: 00000246
RAX: 0000000000000003 RBX: ffff888237d2cb00 RCX: 0000000000000008
RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffff8881183e0528
RBP: ffffc90000497b78 R08: ffff88823fff0340 R09: 0000000000000000
R10: 0000000000000001 R11: ffff888237d2cb00 R12: ffff8881183e0528
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000100
FS:  00007fdc8860f6c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f15ffff CR3: 0000000117937000 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_map_delete+0x25/0x70 net/core/sock_map.c:419
 sock_map_delete_elem+0x1d/0x30 net/core/sock_map.c:451
 bpf_prog_2c29ac5cdc6b1842+0x3a/0x184
 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_map_delete+0x43/0x70 net/core/sock_map.c:425
 sock_map_delete_elem+0x1d/0x30 net/core/sock_map.c:451
 bpf_prog_2c29ac5cdc6b1842+0x3a/0x184
 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
 kvfree+0x25/0x30 mm/util.c:664
 map_update_elem kernel/bpf/syscall.c:1168 [inline]
 __sys_bpf+0x1bc8/0x2720 kernel/bpf/syscall.c:4621
 __do_sys_bpf kernel/bpf/syscall.c:4737 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:4735 [inline]
 __x64_sys_bpf+0x17/0x20 kernel/bpf/syscall.c:4735
 x64_sys_call+0x12b/0x990 arch/x86/include/generated/asm/syscalls_64.h:322
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x33/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fdc88b85a19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fdc8860f048 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fdc88d13f60 RCX: 00007fdc88b85a19
RDX: 0000000000000020 RSI: 0000000020000500 RDI: 0000000000000002
RBP: 00007fdc88bf4e49 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fdc88d13f60 R15: 00007ffe083e6d18
 </TASK>