Extracting prog: 1m9.728681247s
Minimizing prog: 12m50.196271784s
Simplifying prog options: 0s
Extracting C: 1m27.753235274s
Simplifying C: 8m14.289906858s
extracting reproducer from 30 programs
first checking the prog from the crash report
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {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}}): unshare-bpf$MAP_CREATE-openat$tun-ioctl$TUNSETIFF-socket$kcm-ioctl$SIOCSIFHWADDR-write$tun-openat$kvm
detailed listing:
executing program 0:
unshare(0x68040200)
bpf$MAP_CREATE(0x0, 0x0, 0x0)
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x40241, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000200)={'syzkaller1\x00', 0xc201})
r1 = socket$kcm(0x2, 0xa, 0x2)
ioctl$SIOCSIFHWADDR(r1, 0x8914, &(0x7f0000000180)={'syzkaller1\x00', @link_local})
write$tun(r0, &(0x7f0000000240)=ANY=[@ANYBLOB="000386dd0a00100000004000000060ec97020fc80400fe8000000000000000000000000000aaff020000000000000000000000000001"], 0xffe)
openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0)
program crashed: WARNING in ip6mr_free_table
single: successfully extracted reproducer
found reproducer with 8 syscalls
minimizing guilty program
testing program (duration=53.329372132s, {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}}): unshare-bpf$MAP_CREATE-openat$tun-ioctl$TUNSETIFF-socket$kcm-ioctl$SIOCSIFHWADDR-write$tun
detailed listing:
executing program 0:
unshare(0x68040200)
bpf$MAP_CREATE(0x0, 0x0, 0x0)
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x40241, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000200)={'syzkaller1\x00', 0xc201})
r1 = socket$kcm(0x2, 0xa, 0x2)
ioctl$SIOCSIFHWADDR(r1, 0x8914, &(0x7f0000000180)={'syzkaller1\x00', @link_local})
write$tun(r0, &(0x7f0000000240)=ANY=[@ANYBLOB="000386dd0a00100000004000000060ec97020fc80400fe8000000000000000000000000000aaff020000000000000000000000000001"], 0xffe)
program did not crash
testing program (duration=53.329372132s, {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}}): unshare-bpf$MAP_CREATE-openat$tun-ioctl$TUNSETIFF-socket$kcm-ioctl$SIOCSIFHWADDR-openat$kvm
detailed listing:
executing program 0:
unshare(0x68040200)
bpf$MAP_CREATE(0x0, 0x0, 0x0)
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x40241, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000200)={'syzkaller1\x00', 0xc201})
r1 = socket$kcm(0x2, 0xa, 0x2)
ioctl$SIOCSIFHWADDR(r1, 0x8914, &(0x7f0000000180)={'syzkaller1\x00', @link_local})
openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0)
program crashed: WARNING in ip6mr_free_table
testing program (duration=53.329372132s, {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}}): unshare-bpf$MAP_CREATE-openat$tun-ioctl$TUNSETIFF-socket$kcm-openat$kvm
detailed listing:
executing program 0:
unshare(0x68040200)
bpf$MAP_CREATE(0x0, 0x0, 0x0)
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x40241, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000200)={'syzkaller1\x00', 0xc201})
socket$kcm(0x2, 0xa, 0x2)
openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0)
program did not crash
testing program (duration=53.329372132s, {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}}): unshare-bpf$MAP_CREATE-openat$tun-ioctl$TUNSETIFF-ioctl$SIOCSIFHWADDR-openat$kvm
detailed listing:
executing program 0:
unshare(0x68040200)
bpf$MAP_CREATE(0x0, 0x0, 0x0)
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x40241, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000200)={'syzkaller1\x00', 0xc201})
ioctl$SIOCSIFHWADDR(0xffffffffffffffff, 0x8914, &(0x7f0000000180)={'syzkaller1\x00', @link_local})
openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0)
program did not crash
testing program (duration=53.329372132s, {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}}): unshare-bpf$MAP_CREATE-openat$tun-socket$kcm-ioctl$SIOCSIFHWADDR-openat$kvm
detailed listing:
executing program 0:
unshare(0x68040200)
bpf$MAP_CREATE(0x0, 0x0, 0x0)
openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x40241, 0x0)
r0 = socket$kcm(0x2, 0xa, 0x2)
ioctl$SIOCSIFHWADDR(r0, 0x8914, &(0x7f0000000180)={'syzkaller1\x00', @link_local})
openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0)
program crashed: WARNING in ip6mr_free_table
testing program (duration=53.329372132s, {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}}): unshare-bpf$MAP_CREATE-socket$kcm-ioctl$SIOCSIFHWADDR-openat$kvm
detailed listing:
executing program 0:
unshare(0x68040200)
bpf$MAP_CREATE(0x0, 0x0, 0x0)
r0 = socket$kcm(0x2, 0xa, 0x2)
ioctl$SIOCSIFHWADDR(r0, 0x8914, &(0x7f0000000180)={'syzkaller1\x00', @link_local})
openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0)
program did not crash
testing program (duration=53.329372132s, {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}}): unshare-openat$tun-socket$kcm-ioctl$SIOCSIFHWADDR-openat$kvm
detailed listing:
executing program 0:
unshare(0x68040200)
openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x40241, 0x0)
r0 = socket$kcm(0x2, 0xa, 0x2)
ioctl$SIOCSIFHWADDR(r0, 0x8914, &(0x7f0000000180)={'syzkaller1\x00', @link_local})
openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0)
program crashed: WARNING in ip6mr_free_table
testing program (duration=53.329372132s, {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}}): openat$tun-socket$kcm-ioctl$SIOCSIFHWADDR-openat$kvm
detailed listing:
executing program 0:
openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x40241, 0x0)
r0 = socket$kcm(0x2, 0xa, 0x2)
ioctl$SIOCSIFHWADDR(r0, 0x8914, &(0x7f0000000180)={'syzkaller1\x00', @link_local})
openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0)
program did not crash
testing program (duration=53.329372132s, {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}}): unshare-openat$tun-socket$kcm-ioctl$SIOCSIFHWADDR-openat$kvm
detailed listing:
executing program 0:
unshare(0x68040200)
openat$tun(0xffffffffffffff9c, 0x0, 0x40241, 0x0)
r0 = socket$kcm(0x2, 0xa, 0x2)
ioctl$SIOCSIFHWADDR(r0, 0x8914, &(0x7f0000000180)={'syzkaller1\x00', @link_local})
openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0)
program crashed: WARNING in ip6mr_free_table
testing program (duration=53.329372132s, {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}}): unshare-openat$tun-socket$kcm-ioctl$SIOCSIFHWADDR-openat$kvm
detailed listing:
executing program 0:
unshare(0x68040200)
openat$tun(0xffffffffffffff9c, 0x0, 0x40241, 0x0)
r0 = socket$kcm(0x2, 0xa, 0x2)
ioctl$SIOCSIFHWADDR(r0, 0x8914, 0x0)
openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0)
program crashed: WARNING in ip6mr_free_table
extracting C reproducer
testing compiled C program (duration=53.329372132s, {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}}): unshare-openat$tun-socket$kcm-ioctl$SIOCSIFHWADDR-openat$kvm
program crashed: WARNING in ip6mr_free_table
simplifying C reproducer
testing compiled C program (duration=53.329372132s, {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}}): unshare-openat$tun-socket$kcm-ioctl$SIOCSIFHWADDR-openat$kvm
program did not crash
testing compiled C program (duration=53.329372132s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false 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}}): unshare-openat$tun-socket$kcm-ioctl$SIOCSIFHWADDR-openat$kvm
program did not crash
testing compiled C program (duration=53.329372132s, {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}}): unshare-openat$tun-socket$kcm-ioctl$SIOCSIFHWADDR-openat$kvm
program did not crash
testing compiled C program (duration=53.329372132s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): unshare-openat$tun-socket$kcm-ioctl$SIOCSIFHWADDR-openat$kvm
program crashed: WARNING in ip6mr_free_table
testing compiled C program (duration=53.329372132s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): unshare-openat$tun-socket$kcm-ioctl$SIOCSIFHWADDR-openat$kvm
program crashed: WARNING in ip6mr_free_table
testing compiled C program (duration=53.329372132s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): unshare-openat$tun-socket$kcm-ioctl$SIOCSIFHWADDR-openat$kvm
program crashed: WARNING in ip6mr_free_table
testing compiled C program (duration=53.329372132s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): unshare-openat$tun-socket$kcm-ioctl$SIOCSIFHWADDR-openat$kvm
program crashed: WARNING in ip6mr_free_table
testing compiled C program (duration=53.329372132s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): unshare-openat$tun-socket$kcm-ioctl$SIOCSIFHWADDR-openat$kvm
program crashed: WARNING in ip6mr_free_table
reproducing took 23m41.968122884s
repro crashed as (corrupted=false):
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5823 at net/ipv6/ip6mr.c:419 ip6mr_free_table+0xbd/0x120 net/ipv6/ip6mr.c:419
Modules linked in:
CPU: 0 UID: 0 PID: 5823 Comm: syz-executor240 Not tainted 6.13.0-rc1-syzkaller-00025-gfeffde684ac2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:ip6mr_free_table+0xbd/0x120 net/ipv6/ip6mr.c:419
Code: 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 58 49 83 bc 24 c0 0e 00 00 00 74 09 e8 44 c6 af f7 90 <0f> 0b 90 e8 3b c6 af f7 48 8d 7b 38 e8 a2 86 9c f7 48 89 df be 0f
RSP: 0018:ffffc90004a1fbd8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88807c7d4000 RCX: ffffffff89ea3f94
RDX: ffff88801df62440 RSI: ffffffff89ea3fcc RDI: ffff88802944cb40
RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000002 R12: ffff88802944bc80
R13: ffff88807c7d4000 R14: ffff88807c7d4008 R15: dead000000000100
FS: 00007fb593c146c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000007c512000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
ip6mr_rules_exit+0x176/0x2d0 net/ipv6/ip6mr.c:283
ip6mr_net_exit_batch+0x53/0xa0 net/ipv6/ip6mr.c:1388
ops_exit_list+0x128/0x180 net/core/net_namespace.c:177
setup_net+0x4fe/0x860 net/core/net_namespace.c:394
copy_net_ns+0x2b4/0x6b0 net/core/net_namespace.c:500
create_new_namespaces+0x3ea/0xad0 kernel/nsproxy.c:110
unshare_nsproxy_namespaces+0xc0/0x1f0 kernel/nsproxy.c:228
ksys_unshare+0x45d/0xa40 kernel/fork.c:3334
__do_sys_unshare kernel/fork.c:3405 [inline]
__se_sys_unshare kernel/fork.c:3403 [inline]
__x64_sys_unshare+0x31/0x40 kernel/fork.c:3403
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb593c59399
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb593c14238 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007fb593ce3308 RCX: 00007fb593c59399
RDX: 00007fb593c35966 RSI: 0000000000000000 RDI: 0000000068040200
RBP: 00007fb593ce3300 R08: 00007ffc600bc867 R09: 00007fb593c146c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb593cb0074
R13: 0000000000000000 R14: 00007ffc600bc780 R15: 00007ffc600bc868
final repro crashed as (corrupted=false):
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5823 at net/ipv6/ip6mr.c:419 ip6mr_free_table+0xbd/0x120 net/ipv6/ip6mr.c:419
Modules linked in:
CPU: 0 UID: 0 PID: 5823 Comm: syz-executor240 Not tainted 6.13.0-rc1-syzkaller-00025-gfeffde684ac2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:ip6mr_free_table+0xbd/0x120 net/ipv6/ip6mr.c:419
Code: 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 58 49 83 bc 24 c0 0e 00 00 00 74 09 e8 44 c6 af f7 90 <0f> 0b 90 e8 3b c6 af f7 48 8d 7b 38 e8 a2 86 9c f7 48 89 df be 0f
RSP: 0018:ffffc90004a1fbd8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88807c7d4000 RCX: ffffffff89ea3f94
RDX: ffff88801df62440 RSI: ffffffff89ea3fcc RDI: ffff88802944cb40
RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000002 R12: ffff88802944bc80
R13: ffff88807c7d4000 R14: ffff88807c7d4008 R15: dead000000000100
FS: 00007fb593c146c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000007c512000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
ip6mr_rules_exit+0x176/0x2d0 net/ipv6/ip6mr.c:283
ip6mr_net_exit_batch+0x53/0xa0 net/ipv6/ip6mr.c:1388
ops_exit_list+0x128/0x180 net/core/net_namespace.c:177
setup_net+0x4fe/0x860 net/core/net_namespace.c:394
copy_net_ns+0x2b4/0x6b0 net/core/net_namespace.c:500
create_new_namespaces+0x3ea/0xad0 kernel/nsproxy.c:110
unshare_nsproxy_namespaces+0xc0/0x1f0 kernel/nsproxy.c:228
ksys_unshare+0x45d/0xa40 kernel/fork.c:3334
__do_sys_unshare kernel/fork.c:3405 [inline]
__se_sys_unshare kernel/fork.c:3403 [inline]
__x64_sys_unshare+0x31/0x40 kernel/fork.c:3403
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb593c59399
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb593c14238 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007fb593ce3308 RCX: 00007fb593c59399
RDX: 00007fb593c35966 RSI: 0000000000000000 RDI: 0000000068040200
RBP: 00007fb593ce3300 R08: 00007ffc600bc867 R09: 00007fb593c146c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb593cb0074
R13: 0000000000000000 R14: 00007ffc600bc780 R15: 00007ffc600bc868