Extracting prog: 4m18.473433497s
Minimizing prog: 1h20m42.538739906s
Simplifying prog options: 12m24.620797525s
Extracting C: 5m13.121408918s
Simplifying C: 0s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-setsockopt$sock_attach_bpf-sendmsg$tipc-recvmsg
detailed listing:
executing program 0:
socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
setsockopt$sock_attach_bpf(r0, 0x1, 0x21, &(0x7f0000000040), 0x4)
sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0x0, 0x0}, 0x0) (async, rerun: 64)
recvmsg(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000880)=[{&(0x7f0000000600)=""/203, 0xcb}], 0x1}, 0x0)

program crashed: INFO: rcu detected stall in corrupted
single: successfully extracted reproducer
found reproducer with 4 syscalls
minimizing guilty program
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-setsockopt$sock_attach_bpf-sendmsg$tipc
detailed listing:
executing program 0:
socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
setsockopt$sock_attach_bpf(r0, 0x1, 0x21, &(0x7f0000000040), 0x4)
sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0x0, 0x0}, 0x0) (async, rerun: 64)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-setsockopt$sock_attach_bpf-recvmsg
detailed listing:
executing program 0:
socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={<r0=>0xffffffffffffffff})
setsockopt$sock_attach_bpf(r0, 0x1, 0x21, &(0x7f0000000040), 0x4)
recvmsg(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000880)=[{&(0x7f0000000600)=""/203, 0xcb}], 0x1}, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-sendmsg$tipc-recvmsg
detailed listing:
executing program 0:
socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0x0, 0x0}, 0x0) (async, rerun: 64)
recvmsg(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000880)=[{&(0x7f0000000600)=""/203, 0xcb}], 0x1}, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): setsockopt$sock_attach_bpf-sendmsg$tipc-recvmsg
detailed listing:
executing program 0:
setsockopt$sock_attach_bpf(0xffffffffffffffff, 0x1, 0x21, &(0x7f0000000040), 0x4)
sendmsg$tipc(0xffffffffffffffff, &(0x7f0000000240)={0x0, 0x0, 0x0}, 0x0) (async, rerun: 64)
recvmsg(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000880)=[{&(0x7f0000000600)=""/203, 0xcb}], 0x1}, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-setsockopt$sock_attach_bpf-sendmsg$tipc-recvmsg
detailed listing:
executing program 0:
socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
setsockopt$sock_attach_bpf(r0, 0x1, 0x21, &(0x7f0000000040), 0x4)
sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0x0, 0x0}, 0x0)
recvmsg(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000880)=[{&(0x7f0000000600)=""/203, 0xcb}], 0x1}, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-setsockopt$sock_attach_bpf-sendmsg$tipc-recvmsg
detailed listing:
executing program 0:
socketpair$tipc(0x1e, 0x1, 0x0, 0x0)
setsockopt$sock_attach_bpf(0xffffffffffffffff, 0x1, 0x21, &(0x7f0000000040), 0x4)
sendmsg$tipc(0xffffffffffffffff, &(0x7f0000000240)={0x0, 0x0, 0x0}, 0x0) (async, rerun: 64)
recvmsg(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000880)=[{&(0x7f0000000600)=""/203, 0xcb}], 0x1}, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-setsockopt$sock_attach_bpf-sendmsg$tipc-recvmsg
detailed listing:
executing program 0:
socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
setsockopt$sock_attach_bpf(r0, 0x1, 0x21, 0x0, 0x0)
sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0x0, 0x0}, 0x0) (async, rerun: 64)
recvmsg(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000880)=[{&(0x7f0000000600)=""/203, 0xcb}], 0x1}, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-setsockopt$sock_attach_bpf-sendmsg$tipc-recvmsg
detailed listing:
executing program 0:
socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
setsockopt$sock_attach_bpf(r0, 0x1, 0x21, &(0x7f0000000040), 0x4)
sendmsg$tipc(r1, 0x0, 0x0) (async, rerun: 64)
recvmsg(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000880)=[{&(0x7f0000000600)=""/203, 0xcb}], 0x1}, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-setsockopt$sock_attach_bpf-sendmsg$tipc-recvmsg
detailed listing:
executing program 0:
socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
setsockopt$sock_attach_bpf(r0, 0x1, 0x21, &(0x7f0000000040), 0x4)
sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0x0, 0x0}, 0x0) (rerun: 64)
recvmsg(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000880)=[{&(0x7f0000000600)=""/203, 0xcb}], 0x1}, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-setsockopt$sock_attach_bpf-sendmsg$tipc-recvmsg
detailed listing:
executing program 0:
socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
setsockopt$sock_attach_bpf(r0, 0x1, 0x21, &(0x7f0000000040), 0x4)
sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0x0, 0x0}, 0x0) (async)
recvmsg(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000880)=[{&(0x7f0000000600)=""/203, 0xcb}], 0x1}, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-setsockopt$sock_attach_bpf-sendmsg$tipc-recvmsg
detailed listing:
executing program 0:
socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
setsockopt$sock_attach_bpf(r0, 0x1, 0x21, &(0x7f0000000040), 0x4)
sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0x0, 0x0}, 0x0) (async, rerun: 64)
recvmsg(r0, 0x0, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-setsockopt$sock_attach_bpf-sendmsg$tipc-recvmsg
detailed listing:
executing program 0:
socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
setsockopt$sock_attach_bpf(r0, 0x1, 0x21, &(0x7f0000000040), 0x4)
sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0x0, 0x0}, 0x0) (async, rerun: 64)
recvmsg(r0, &(0x7f0000000080)={0x0, 0x0, 0x0}, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-setsockopt$sock_attach_bpf-sendmsg$tipc-recvmsg
detailed listing:
executing program 0:
socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
setsockopt$sock_attach_bpf(r0, 0x1, 0x21, &(0x7f0000000040), 0x4)
sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0x0, 0x0}, 0x0) (async, rerun: 64)
recvmsg(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000880)=[{0x0}], 0x1}, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-setsockopt$sock_attach_bpf-sendmsg$tipc-recvmsg
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
simplifying guilty program options
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-setsockopt$sock_attach_bpf-sendmsg$tipc-recvmsg
detailed listing:
executing program 0:
socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
setsockopt$sock_attach_bpf(r0, 0x1, 0x21, &(0x7f0000000040), 0x4)
sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0x0, 0x0}, 0x0) (async, rerun: 64)
recvmsg(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000880)=[{&(0x7f0000000600)=""/203, 0xcb}], 0x1}, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-setsockopt$sock_attach_bpf-sendmsg$tipc-recvmsg
detailed listing:
executing program 0:
socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
setsockopt$sock_attach_bpf(r0, 0x1, 0x21, &(0x7f0000000040), 0x4)
sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0x0, 0x0}, 0x0) (async, rerun: 64)
recvmsg(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000880)=[{&(0x7f0000000600)=""/203, 0xcb}], 0x1}, 0x0)

program did not crash
reproducing took 1h42m38.754408606s
repro crashed as (corrupted=true):
rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-...!: (10500 ticks this GP) idle=d92c/1/0x4000000000000000 softirq=10840/10840 fqs=0
	(t=10500 jiffies g=11125 q=105 ncpus=2)
rcu: rcu_preempt kthread timer wakeup didn't happen for 10499 jiffies! g11125 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=1 timer-softirq=5982
rcu: rcu_preempt kthread starved for 10500 jiffies! g11125 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:I stack:26080 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5244 [inline]
 __schedule+0x143f/0x4570 kernel/sched/core.c:6561
 schedule+0xbf/0x180 kernel/sched/core.c:6637
 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1965
 rcu_gp_fqs_loop+0x2d2/0x1150 kernel/rcu/tree.c:1706
 rcu_gp_kthread+0xa3/0x3b0 kernel/rcu/tree.c:1905
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 PID: 4558 Comm: syz.1.56 Not tainted 6.1.132-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:lock_acquire+0x26f/0x5a0 kernel/locking/lockdep.c:5666
Code: 2b 00 74 08 4c 89 f7 e8 af 54 77 00 f6 44 24 61 02 0f 85 84 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc9000396dec0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff9200072dbe4 RCX: 1ffff9200072db84
RDX: dffffc0000000000 RSI: ffffffff8b0c2f40 RDI: ffffffff8b5f70e0
RBP: ffffc9000396e018 R08: dffffc0000000000 R09: fffffbfff225764d
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff9200072dbe0
R13: dffffc0000000000 R14: ffffc9000396df20 R15: 0000000000000246
FS:  00007f0ef217c6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0ef217bf98 CR3: 000000006007a000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
 rcu_read_lock include/linux/rcupdate.h:791 [inline]
 net_generic+0x3c/0x230 include/net/netns/generic.h:45
 tipc_sk_lookup+0xbb/0x9d0 net/tipc/socket.c:2997
 tipc_sk_rcv+0x43d/0x1dd0 net/tipc/socket.c:2492
 tipc_node_xmit+0x1da/0xf50 net/tipc/node.c:1703
 tipc_node_xmit_skb net/tipc/node.c:1768 [inline]
 tipc_node_distr_xmit+0x309/0x440 net/tipc/node.c:1783
 tipc_sk_rcv+0x16c2/0x1dd0 net/tipc/socket.c:2501
 tipc_node_xmit+0x1da/0xf50 net/tipc/node.c:1703
 tipc_sk_push_backlog+0x50f/0x920 net/tipc/socket.c:1316
 tipc_sk_conn_proto_rcv net/tipc/socket.c:1370 [inline]
 tipc_sk_proto_rcv+0xa56/0x1a50 net/tipc/socket.c:2158
 tipc_sk_filter_rcv+0x32c0/0x35a0 net/tipc/socket.c:2352
 tipc_sk_enqueue net/tipc/socket.c:2445 [inline]
 tipc_sk_rcv+0x8b8/0x1dd0 net/tipc/socket.c:2497
 tipc_node_xmit+0x1da/0xf50 net/tipc/node.c:1703
 tipc_node_xmit_skb net/tipc/node.c:1768 [inline]
 tipc_node_distr_xmit+0x309/0x440 net/tipc/node.c:1783
 tipc_sk_backlog_rcv+0x19e/0x230 net/tipc/socket.c:2412
 sk_backlog_rcv include/net/sock.h:1119 [inline]
 __release_sock+0x198/0x4b0 net/core/sock.c:2939
 release_sock+0x5d/0x1c0 net/core/sock.c:3503
 tipc_wait_for_rcvmsg+0x33a/0x690 net/tipc/socket.c:1849
 tipc_recvstream+0x292/0xf70 net/tipc/socket.c:2042
 ____sys_recvmsg+0x285/0x530 net/socket.c:-1
 ___sys_recvmsg net/socket.c:2780 [inline]
 __sys_recvmsg+0x2e9/0x3d0 net/socket.c:2810
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f0ef138d169
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:00007f0ef217c038 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
RAX: ffffffffffffffda RBX: 00007f0ef15a6080 RCX: 00007f0ef138d169
RDX: 0000000000000000 RSI: 0000200000000080 RDI: 0000000000000003
RBP: 00007f0ef140e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f0ef15a6080 R15: 00007ffc28eb1668
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4557 Comm: syz.1.56 Not tainted 6.1.132-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:434 [inline]
RIP: 0010:__pv_queued_spin_lock_slowpath+0x5fb/0xc50 kernel/locking/qspinlock.c:511
Code: 01 00 00 49 89 dd c6 03 00 48 8b 44 24 10 0f b6 04 10 84 c0 0f 85 44 01 00 00 48 8b 04 24 c6 00 01 bb 00 80 ff ff eb 06 f3 90 <ff> c3 74 5d 41 0f b6 04 14 84 c0 75 36 41 80 3f 00 75 eb 4c 89 ff
RSP: 0018:ffffc9000395f8e0 EFLAGS: 00000206
RAX: 0000000000000000 RBX: 00000000ffffc6aa RCX: ffffffff816b25ca
RDX: dffffc0000000000 RSI: ffffffff8b0c1dc0 RDI: ffffffff8b5f70e0
RBP: ffffc9000395f9d8 R08: dffffc0000000000 R09: fffffbfff225766f
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1100e86229b
R13: ffff8880b8e3b7d4 R14: 1ffff110171c0001 R15: ffff8880743114d8
FS:  00007f0ef219d6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0ef217cd58 CR3: 000000006007a000 CR4: 00000000003506f0
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:591 [inline]
 queued_spin_lock_slowpath+0x42/0x50 arch/x86/include/asm/qspinlock.h:51
 queued_spin_lock include/asm-generic/qspinlock.h:114 [inline]
 do_raw_spin_lock+0x269/0x370 kernel/locking/spinlock_debug.c:115
 spin_lock_bh include/linux/spinlock.h:356 [inline]
 lock_sock_nested+0x66/0x100 net/core/sock.c:3491
 lock_sock include/net/sock.h:1756 [inline]
 tipc_sendstream+0x43/0x70 net/tipc/socket.c:1549
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg net/socket.c:730 [inline]
 ____sys_sendmsg+0x5d3/0x9a0 net/socket.c:2519
 ___sys_sendmsg net/socket.c:2573 [inline]
 __sys_sendmsg+0x2a9/0x390 net/socket.c:2602
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f0ef138d169
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:00007f0ef219d038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f0ef15a5fa0 RCX: 00007f0ef138d169
RDX: 0000000000000000 RSI: 0000200000000240 RDI: 0000000000000004
RBP: 00007f0ef140e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f0ef15a5fa0 R15: 00007ffc28eb1668
 </TASK>
CPU: 1 PID: 4558 Comm: syz.1.56 Not tainted 6.1.132-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:lock_acquire+0x26f/0x5a0 kernel/locking/lockdep.c:5666
Code: 2b 00 74 08 4c 89 f7 e8 af 54 77 00 f6 44 24 61 02 0f 85 84 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc9000396dec0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff9200072dbe4 RCX: 1ffff9200072db84
RDX: dffffc0000000000 RSI: ffffffff8b0c2f40 RDI: ffffffff8b5f70e0
RBP: ffffc9000396e018 R08: dffffc0000000000 R09: fffffbfff225764d
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff9200072dbe0
R13: dffffc0000000000 R14: ffffc9000396df20 R15: 0000000000000246
FS:  00007f0ef217c6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0ef217bf98 CR3: 000000006007a000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
 rcu_read_lock include/linux/rcupdate.h:791 [inline]
 net_generic+0x3c/0x230 include/net/netns/generic.h:45
 tipc_sk_lookup+0xbb/0x9d0 net/tipc/socket.c:2997
 tipc_sk_rcv+0x43d/0x1dd0 net/tipc/socket.c:2492
 tipc_node_xmit+0x1da/0xf50 net/tipc/node.c:1703
 tipc_node_xmit_skb net/tipc/node.c:1768 [inline]
 tipc_node_distr_xmit+0x309/0x440 net/tipc/node.c:1783
 tipc_sk_rcv+0x16c2/0x1dd0 net/tipc/socket.c:2501
 tipc_node_xmit+0x1da/0xf50 net/tipc/node.c:1703
 tipc_sk_push_backlog+0x50f/0x920 net/tipc/socket.c:1316
 tipc_sk_conn_proto_rcv net/tipc/socket.c:1370 [inline]
 tipc_sk_proto_rcv+0xa56/0x1a50 net/tipc/socket.c:2158
 tipc_sk_filter_rcv+0x32c0/0x35a0 net/tipc/socket.c:2352
 tipc_sk_enqueue net/tipc/socket.c:2445 [inline]
 tipc_sk_rcv+0x8b8/0x1dd0 net/tipc/socket.c:2497
 tipc_node_xmit+0x1da/0xf50 net/tipc/node.c:1703
 tipc_node_xmit_skb net/tipc/node.c:1768 [inline]
 tipc_node_distr_xmit+0x309/0x440 net/tipc/node.c:1783
 tipc_sk_backlog_rcv+0x19e/0x230 net/tipc/socket.c:2412
 sk_backlog_rcv include/net/sock.h:1119 [inline]
 __release_sock+0x198/0x4b0 net/core/sock.c:2939
 release_sock+0x5d/0x1c0 net/core/sock.c:3503
 tipc_wait_for_rcvmsg+0x33a/0x690 net/tipc/socket.c:1849
 tipc_recvstream+0x292/0xf70 net/tipc/socket.c:2042
 ____sys_recvmsg+0x285/0x530 net/socket.c:-1
 ___sys_recvmsg net/socket.c:2780 [inline]
 __sys_recvmsg+0x2e9/0x3d0 net/socket.c:2810
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f0ef138d169
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:00007f0ef217c038 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
RAX: ffffffffffffffda RBX: 00007f0ef15a6080 RCX: 00007f0ef138d169
RDX: 0000000000000000 RSI: 0000200000000080 RDI: 0000000000000003
RBP: 00007f0ef140e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f0ef15a6080 R15: 00007ffc28eb1668
 </TASK>

report is corrupted, running repro again
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-setsockopt$sock_attach_bpf-sendmsg$tipc-recvmsg
detailed listing:
executing program 0:
socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
setsockopt$sock_attach_bpf(r0, 0x1, 0x21, &(0x7f0000000040), 0x4)
sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0x0, 0x0}, 0x0) (async, rerun: 64)
recvmsg(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000880)=[{&(0x7f0000000600)=""/203, 0xcb}], 0x1}, 0x0)

program crashed: lost connection to test machine
suppressed program crash: lost connection to test machine
report is corrupted, running repro again
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-setsockopt$sock_attach_bpf-sendmsg$tipc-recvmsg
detailed listing:
executing program 0:
socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
setsockopt$sock_attach_bpf(r0, 0x1, 0x21, &(0x7f0000000040), 0x4)
sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0x0, 0x0}, 0x0) (async, rerun: 64)
recvmsg(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000880)=[{&(0x7f0000000600)=""/203, 0xcb}], 0x1}, 0x0)

program crashed: lost connection to test machine
suppressed program crash: lost connection to test machine
report is corrupted, running repro again
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$tipc-setsockopt$sock_attach_bpf-sendmsg$tipc-recvmsg
detailed listing:
executing program 0:
socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000000000)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
setsockopt$sock_attach_bpf(r0, 0x1, 0x21, &(0x7f0000000040), 0x4)
sendmsg$tipc(r1, &(0x7f0000000240)={0x0, 0x0, 0x0}, 0x0) (async, rerun: 64)
recvmsg(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000880)=[{&(0x7f0000000600)=""/203, 0xcb}], 0x1}, 0x0)

program did not crash
final repro crashed as (corrupted=true):
rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-...!: (10500 ticks this GP) idle=d92c/1/0x4000000000000000 softirq=10840/10840 fqs=0
	(t=10500 jiffies g=11125 q=105 ncpus=2)
rcu: rcu_preempt kthread timer wakeup didn't happen for 10499 jiffies! g11125 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=1 timer-softirq=5982
rcu: rcu_preempt kthread starved for 10500 jiffies! g11125 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:I stack:26080 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5244 [inline]
 __schedule+0x143f/0x4570 kernel/sched/core.c:6561
 schedule+0xbf/0x180 kernel/sched/core.c:6637
 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1965
 rcu_gp_fqs_loop+0x2d2/0x1150 kernel/rcu/tree.c:1706
 rcu_gp_kthread+0xa3/0x3b0 kernel/rcu/tree.c:1905
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 PID: 4558 Comm: syz.1.56 Not tainted 6.1.132-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:lock_acquire+0x26f/0x5a0 kernel/locking/lockdep.c:5666
Code: 2b 00 74 08 4c 89 f7 e8 af 54 77 00 f6 44 24 61 02 0f 85 84 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc9000396dec0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff9200072dbe4 RCX: 1ffff9200072db84
RDX: dffffc0000000000 RSI: ffffffff8b0c2f40 RDI: ffffffff8b5f70e0
RBP: ffffc9000396e018 R08: dffffc0000000000 R09: fffffbfff225764d
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff9200072dbe0
R13: dffffc0000000000 R14: ffffc9000396df20 R15: 0000000000000246
FS:  00007f0ef217c6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0ef217bf98 CR3: 000000006007a000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
 rcu_read_lock include/linux/rcupdate.h:791 [inline]
 net_generic+0x3c/0x230 include/net/netns/generic.h:45
 tipc_sk_lookup+0xbb/0x9d0 net/tipc/socket.c:2997
 tipc_sk_rcv+0x43d/0x1dd0 net/tipc/socket.c:2492
 tipc_node_xmit+0x1da/0xf50 net/tipc/node.c:1703
 tipc_node_xmit_skb net/tipc/node.c:1768 [inline]
 tipc_node_distr_xmit+0x309/0x440 net/tipc/node.c:1783
 tipc_sk_rcv+0x16c2/0x1dd0 net/tipc/socket.c:2501
 tipc_node_xmit+0x1da/0xf50 net/tipc/node.c:1703
 tipc_sk_push_backlog+0x50f/0x920 net/tipc/socket.c:1316
 tipc_sk_conn_proto_rcv net/tipc/socket.c:1370 [inline]
 tipc_sk_proto_rcv+0xa56/0x1a50 net/tipc/socket.c:2158
 tipc_sk_filter_rcv+0x32c0/0x35a0 net/tipc/socket.c:2352
 tipc_sk_enqueue net/tipc/socket.c:2445 [inline]
 tipc_sk_rcv+0x8b8/0x1dd0 net/tipc/socket.c:2497
 tipc_node_xmit+0x1da/0xf50 net/tipc/node.c:1703
 tipc_node_xmit_skb net/tipc/node.c:1768 [inline]
 tipc_node_distr_xmit+0x309/0x440 net/tipc/node.c:1783
 tipc_sk_backlog_rcv+0x19e/0x230 net/tipc/socket.c:2412
 sk_backlog_rcv include/net/sock.h:1119 [inline]
 __release_sock+0x198/0x4b0 net/core/sock.c:2939
 release_sock+0x5d/0x1c0 net/core/sock.c:3503
 tipc_wait_for_rcvmsg+0x33a/0x690 net/tipc/socket.c:1849
 tipc_recvstream+0x292/0xf70 net/tipc/socket.c:2042
 ____sys_recvmsg+0x285/0x530 net/socket.c:-1
 ___sys_recvmsg net/socket.c:2780 [inline]
 __sys_recvmsg+0x2e9/0x3d0 net/socket.c:2810
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f0ef138d169
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:00007f0ef217c038 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
RAX: ffffffffffffffda RBX: 00007f0ef15a6080 RCX: 00007f0ef138d169
RDX: 0000000000000000 RSI: 0000200000000080 RDI: 0000000000000003
RBP: 00007f0ef140e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f0ef15a6080 R15: 00007ffc28eb1668
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4557 Comm: syz.1.56 Not tainted 6.1.132-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:434 [inline]
RIP: 0010:__pv_queued_spin_lock_slowpath+0x5fb/0xc50 kernel/locking/qspinlock.c:511
Code: 01 00 00 49 89 dd c6 03 00 48 8b 44 24 10 0f b6 04 10 84 c0 0f 85 44 01 00 00 48 8b 04 24 c6 00 01 bb 00 80 ff ff eb 06 f3 90 <ff> c3 74 5d 41 0f b6 04 14 84 c0 75 36 41 80 3f 00 75 eb 4c 89 ff
RSP: 0018:ffffc9000395f8e0 EFLAGS: 00000206
RAX: 0000000000000000 RBX: 00000000ffffc6aa RCX: ffffffff816b25ca
RDX: dffffc0000000000 RSI: ffffffff8b0c1dc0 RDI: ffffffff8b5f70e0
RBP: ffffc9000395f9d8 R08: dffffc0000000000 R09: fffffbfff225766f
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1100e86229b
R13: ffff8880b8e3b7d4 R14: 1ffff110171c0001 R15: ffff8880743114d8
FS:  00007f0ef219d6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0ef217cd58 CR3: 000000006007a000 CR4: 00000000003506f0
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:591 [inline]
 queued_spin_lock_slowpath+0x42/0x50 arch/x86/include/asm/qspinlock.h:51
 queued_spin_lock include/asm-generic/qspinlock.h:114 [inline]
 do_raw_spin_lock+0x269/0x370 kernel/locking/spinlock_debug.c:115
 spin_lock_bh include/linux/spinlock.h:356 [inline]
 lock_sock_nested+0x66/0x100 net/core/sock.c:3491
 lock_sock include/net/sock.h:1756 [inline]
 tipc_sendstream+0x43/0x70 net/tipc/socket.c:1549
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg net/socket.c:730 [inline]
 ____sys_sendmsg+0x5d3/0x9a0 net/socket.c:2519
 ___sys_sendmsg net/socket.c:2573 [inline]
 __sys_sendmsg+0x2a9/0x390 net/socket.c:2602
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f0ef138d169
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:00007f0ef219d038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f0ef15a5fa0 RCX: 00007f0ef138d169
RDX: 0000000000000000 RSI: 0000200000000240 RDI: 0000000000000004
RBP: 00007f0ef140e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f0ef15a5fa0 R15: 00007ffc28eb1668
 </TASK>
CPU: 1 PID: 4558 Comm: syz.1.56 Not tainted 6.1.132-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:lock_acquire+0x26f/0x5a0 kernel/locking/lockdep.c:5666
Code: 2b 00 74 08 4c 89 f7 e8 af 54 77 00 f6 44 24 61 02 0f 85 84 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc9000396dec0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff9200072dbe4 RCX: 1ffff9200072db84
RDX: dffffc0000000000 RSI: ffffffff8b0c2f40 RDI: ffffffff8b5f70e0
RBP: ffffc9000396e018 R08: dffffc0000000000 R09: fffffbfff225764d
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff9200072dbe0
R13: dffffc0000000000 R14: ffffc9000396df20 R15: 0000000000000246
FS:  00007f0ef217c6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0ef217bf98 CR3: 000000006007a000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
 rcu_read_lock include/linux/rcupdate.h:791 [inline]
 net_generic+0x3c/0x230 include/net/netns/generic.h:45
 tipc_sk_lookup+0xbb/0x9d0 net/tipc/socket.c:2997
 tipc_sk_rcv+0x43d/0x1dd0 net/tipc/socket.c:2492
 tipc_node_xmit+0x1da/0xf50 net/tipc/node.c:1703
 tipc_node_xmit_skb net/tipc/node.c:1768 [inline]
 tipc_node_distr_xmit+0x309/0x440 net/tipc/node.c:1783
 tipc_sk_rcv+0x16c2/0x1dd0 net/tipc/socket.c:2501
 tipc_node_xmit+0x1da/0xf50 net/tipc/node.c:1703
 tipc_sk_push_backlog+0x50f/0x920 net/tipc/socket.c:1316
 tipc_sk_conn_proto_rcv net/tipc/socket.c:1370 [inline]
 tipc_sk_proto_rcv+0xa56/0x1a50 net/tipc/socket.c:2158
 tipc_sk_filter_rcv+0x32c0/0x35a0 net/tipc/socket.c:2352
 tipc_sk_enqueue net/tipc/socket.c:2445 [inline]
 tipc_sk_rcv+0x8b8/0x1dd0 net/tipc/socket.c:2497
 tipc_node_xmit+0x1da/0xf50 net/tipc/node.c:1703
 tipc_node_xmit_skb net/tipc/node.c:1768 [inline]
 tipc_node_distr_xmit+0x309/0x440 net/tipc/node.c:1783
 tipc_sk_backlog_rcv+0x19e/0x230 net/tipc/socket.c:2412
 sk_backlog_rcv include/net/sock.h:1119 [inline]
 __release_sock+0x198/0x4b0 net/core/sock.c:2939
 release_sock+0x5d/0x1c0 net/core/sock.c:3503
 tipc_wait_for_rcvmsg+0x33a/0x690 net/tipc/socket.c:1849
 tipc_recvstream+0x292/0xf70 net/tipc/socket.c:2042
 ____sys_recvmsg+0x285/0x530 net/socket.c:-1
 ___sys_recvmsg net/socket.c:2780 [inline]
 __sys_recvmsg+0x2e9/0x3d0 net/socket.c:2810
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f0ef138d169
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:00007f0ef217c038 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
RAX: ffffffffffffffda RBX: 00007f0ef15a6080 RCX: 00007f0ef138d169
RDX: 0000000000000000 RSI: 0000200000000080 RDI: 0000000000000003
RBP: 00007f0ef140e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f0ef15a6080 R15: 00007ffc28eb1668
 </TASK>