Extracting prog: 1m30.384297027s
Minimizing prog: 11m46.084257976s
Simplifying prog options: 0s
Extracting C: 31.949156906s
Simplifying C: 6m44.457158482s
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}}): socket$kcm-sendmsg$kcm
detailed listing:
executing program 0:
r0 = socket$kcm(0x10, 0x3, 0x10)
sendmsg$kcm(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f00000004c0)=[{&(0x7f0000000980)="1400000016000b63d25a80648c2594f90124fc60", 0x14}], 0x1}, 0x0)
program crashed: general protection fault in ethnl_default_dumpit
single: successfully extracted reproducer
found reproducer with 2 syscalls
minimizing guilty program
testing program (duration=53.130514827s, {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}}): socket$kcm
detailed listing:
executing program 0:
socket$kcm(0x10, 0x3, 0x10)
program did not crash
testing program (duration=53.130514827s, {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}}): sendmsg$kcm
detailed listing:
executing program 0:
sendmsg$kcm(0xffffffffffffffff, &(0x7f0000000a40)={0x0, 0x0, &(0x7f00000004c0)=[{&(0x7f0000000980)="1400000016000b63d25a80648c2594f90124fc60", 0x14}], 0x1}, 0x0)
program did not crash
testing program (duration=53.130514827s, {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}}): socket$kcm-sendmsg$kcm
detailed listing:
executing program 0:
r0 = socket$kcm(0x10, 0x3, 0x10)
sendmsg$kcm(r0, 0x0, 0x0)
program did not crash
testing program (duration=53.130514827s, {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}}): socket$kcm-sendmsg$kcm
detailed listing:
executing program 0:
r0 = socket$kcm(0x10, 0x3, 0x10)
sendmsg$kcm(r0, &(0x7f0000000a40)={0x0, 0x0, 0x0}, 0x0)
program did not crash
testing program (duration=53.130514827s, {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}}): socket$kcm-sendmsg$kcm
detailed listing:
executing program 0:
r0 = socket$kcm(0x10, 0x3, 0x10)
sendmsg$kcm(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f00000004c0)=[{0x0}], 0x1}, 0x0)
program did not crash
testing program (duration=53.130514827s, {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}}): socket$kcm-sendmsg$kcm
detailed listing:
executing program 0:
r0 = socket$kcm(0x10, 0x3, 0x10)
sendmsg$kcm(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f00000004c0)=[{&(0x7f0000000980)}], 0x1}, 0x0)
program did not crash
extracting C reproducer
testing compiled C program (duration=53.130514827s, {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}}): socket$kcm-sendmsg$kcm
program crashed: general protection fault in ethnl_default_dumpit
simplifying C reproducer
testing compiled C program (duration=53.130514827s, {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}}): socket$kcm-sendmsg$kcm
program crashed: general protection fault in ethnl_default_dumpit
testing compiled C program (duration=53.130514827s, {Threaded:false 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}}): socket$kcm-sendmsg$kcm
program crashed: general protection fault in ethnl_default_dumpit
testing compiled C program (duration=53.130514827s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 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}}): socket$kcm-sendmsg$kcm
program crashed: general protection fault in ethnl_default_dumpit
testing compiled C program (duration=53.130514827s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 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}}): socket$kcm-sendmsg$kcm
program crashed: general protection fault in ethnl_default_dumpit
testing compiled C program (duration=53.130514827s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 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}}): socket$kcm-sendmsg$kcm
program crashed: general protection fault in ethnl_default_dumpit
testing compiled C program (duration=53.130514827s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 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}}): socket$kcm-sendmsg$kcm
program crashed: general protection fault in ethnl_default_dumpit
testing compiled C program (duration=53.130514827s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 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}}): socket$kcm-sendmsg$kcm
program crashed: general protection fault in ethnl_default_dumpit
reproducing took 20m32.874900253s
repro crashed as (corrupted=false):
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000197: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000cb8-0x0000000000000cbf]
CPU: 0 UID: 0 PID: 5825 Comm: syz-executor178 Not tainted 6.14.0-rc5-syzkaller-01064-g2525e16a2bae #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:netdev_need_ops_lock include/linux/netdevice.h:2792 [inline]
RIP: 0010:netdev_lock_ops include/linux/netdevice.h:2803 [inline]
RIP: 0010:ethnl_default_dump_one net/ethtool/netlink.c:557 [inline]
RIP: 0010:ethnl_default_dumpit+0x447/0xd40 net/ethtool/netlink.c:593
Code: 49 8b 1f 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 ca e6 17 f8 4c 8b 3b 49 8d 9f bd 0c 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 0f 85 4b 07 00 00 0f b6 1b 31 ff 89 de e8 f0
RSP: 0018:ffffc9000405f0d8 EFLAGS: 00010203
RAX: 0000000000000197 RBX: 0000000000000cbd RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8c80fdc0 RDI: 0000000000000001
RBP: ffff88802fa67800 R08: ffffffff903d0b77 R09: 1ffffffff207a16e
R10: dffffc0000000000 R11: fffffbfff207a16f R12: ffff888144ed8600
R13: ffff8880343ed8c0 R14: dffffc0000000000 R15: 0000000000000000
FS: 000055556a3e9380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000400000000a40 CR3: 0000000076420000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
genl_dumpit+0x10d/0x1b0 net/netlink/genetlink.c:1027
netlink_dump+0x64d/0xe10 net/netlink/af_netlink.c:2309
__netlink_dump_start+0x5a2/0x790 net/netlink/af_netlink.c:2424
genl_family_rcv_msg_dumpit net/netlink/genetlink.c:1076 [inline]
genl_family_rcv_msg net/netlink/genetlink.c:1192 [inline]
genl_rcv_msg+0x894/0xec0 net/netlink/genetlink.c:1210
netlink_rcv_skb+0x206/0x480 net/netlink/af_netlink.c:2534
genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219
netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline]
netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1339
netlink_sendmsg+0x8de/0xcb0 net/netlink/af_netlink.c:1883
sock_sendmsg_nosec net/socket.c:709 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:724
____sys_sendmsg+0x53a/0x860 net/socket.c:2564
___sys_sendmsg net/socket.c:2618 [inline]
__sys_sendmsg+0x269/0x350 net/socket.c:2650
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0224f9b329
Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff919fe158 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fff919fe328 RCX: 00007f0224f9b329
RDX: 0000000000000000 RSI: 0000400000000a40 RDI: 0000000000000003
RBP: 00007f022500e610 R08: 0000000000000000 R09: 00007fff919fe328
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fff919fe318 R14: 0000000000000001 R15: 0000000000000001
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:netdev_need_ops_lock include/linux/netdevice.h:2792 [inline]
RIP: 0010:netdev_lock_ops include/linux/netdevice.h:2803 [inline]
RIP: 0010:ethnl_default_dump_one net/ethtool/netlink.c:557 [inline]
RIP: 0010:ethnl_default_dumpit+0x447/0xd40 net/ethtool/netlink.c:593
Code: 49 8b 1f 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 ca e6 17 f8 4c 8b 3b 49 8d 9f bd 0c 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 0f 85 4b 07 00 00 0f b6 1b 31 ff 89 de e8 f0
RSP: 0018:ffffc9000405f0d8 EFLAGS: 00010203
RAX: 0000000000000197 RBX: 0000000000000cbd RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8c80fdc0 RDI: 0000000000000001
RBP: ffff88802fa67800 R08: ffffffff903d0b77 R09: 1ffffffff207a16e
R10: dffffc0000000000 R11: fffffbfff207a16f R12: ffff888144ed8600
R13: ffff8880343ed8c0 R14: dffffc0000000000 R15: 0000000000000000
FS: 000055556a3e9380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005642a3888000 CR3: 0000000076420000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 49 8b 1f mov (%r15),%rbx
3: 48 89 d8 mov %rbx,%rax
6: 48 c1 e8 03 shr $0x3,%rax
a: 42 80 3c 30 00 cmpb $0x0,(%rax,%r14,1)
f: 74 08 je 0x19
11: 48 89 df mov %rbx,%rdi
14: e8 ca e6 17 f8 call 0xf817e6e3
19: 4c 8b 3b mov (%rbx),%r15
1c: 49 8d 9f bd 0c 00 00 lea 0xcbd(%r15),%rbx
23: 48 89 d8 mov %rbx,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 42 0f b6 04 30 movzbl (%rax,%r14,1),%eax <-- trapping instruction
2f: 84 c0 test %al,%al
31: 0f 85 4b 07 00 00 jne 0x782
37: 0f b6 1b movzbl (%rbx),%ebx
3a: 31 ff xor %edi,%edi
3c: 89 de mov %ebx,%esi
3e: e8 .byte 0xe8
3f: f0 lock
final repro crashed as (corrupted=false):
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000197: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000cb8-0x0000000000000cbf]
CPU: 0 UID: 0 PID: 5825 Comm: syz-executor178 Not tainted 6.14.0-rc5-syzkaller-01064-g2525e16a2bae #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:netdev_need_ops_lock include/linux/netdevice.h:2792 [inline]
RIP: 0010:netdev_lock_ops include/linux/netdevice.h:2803 [inline]
RIP: 0010:ethnl_default_dump_one net/ethtool/netlink.c:557 [inline]
RIP: 0010:ethnl_default_dumpit+0x447/0xd40 net/ethtool/netlink.c:593
Code: 49 8b 1f 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 ca e6 17 f8 4c 8b 3b 49 8d 9f bd 0c 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 0f 85 4b 07 00 00 0f b6 1b 31 ff 89 de e8 f0
RSP: 0018:ffffc9000405f0d8 EFLAGS: 00010203
RAX: 0000000000000197 RBX: 0000000000000cbd RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8c80fdc0 RDI: 0000000000000001
RBP: ffff88802fa67800 R08: ffffffff903d0b77 R09: 1ffffffff207a16e
R10: dffffc0000000000 R11: fffffbfff207a16f R12: ffff888144ed8600
R13: ffff8880343ed8c0 R14: dffffc0000000000 R15: 0000000000000000
FS: 000055556a3e9380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000400000000a40 CR3: 0000000076420000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
genl_dumpit+0x10d/0x1b0 net/netlink/genetlink.c:1027
netlink_dump+0x64d/0xe10 net/netlink/af_netlink.c:2309
__netlink_dump_start+0x5a2/0x790 net/netlink/af_netlink.c:2424
genl_family_rcv_msg_dumpit net/netlink/genetlink.c:1076 [inline]
genl_family_rcv_msg net/netlink/genetlink.c:1192 [inline]
genl_rcv_msg+0x894/0xec0 net/netlink/genetlink.c:1210
netlink_rcv_skb+0x206/0x480 net/netlink/af_netlink.c:2534
genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219
netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline]
netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1339
netlink_sendmsg+0x8de/0xcb0 net/netlink/af_netlink.c:1883
sock_sendmsg_nosec net/socket.c:709 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:724
____sys_sendmsg+0x53a/0x860 net/socket.c:2564
___sys_sendmsg net/socket.c:2618 [inline]
__sys_sendmsg+0x269/0x350 net/socket.c:2650
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0224f9b329
Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff919fe158 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fff919fe328 RCX: 00007f0224f9b329
RDX: 0000000000000000 RSI: 0000400000000a40 RDI: 0000000000000003
RBP: 00007f022500e610 R08: 0000000000000000 R09: 00007fff919fe328
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fff919fe318 R14: 0000000000000001 R15: 0000000000000001
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:netdev_need_ops_lock include/linux/netdevice.h:2792 [inline]
RIP: 0010:netdev_lock_ops include/linux/netdevice.h:2803 [inline]
RIP: 0010:ethnl_default_dump_one net/ethtool/netlink.c:557 [inline]
RIP: 0010:ethnl_default_dumpit+0x447/0xd40 net/ethtool/netlink.c:593
Code: 49 8b 1f 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 ca e6 17 f8 4c 8b 3b 49 8d 9f bd 0c 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 0f 85 4b 07 00 00 0f b6 1b 31 ff 89 de e8 f0
RSP: 0018:ffffc9000405f0d8 EFLAGS: 00010203
RAX: 0000000000000197 RBX: 0000000000000cbd RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8c80fdc0 RDI: 0000000000000001
RBP: ffff88802fa67800 R08: ffffffff903d0b77 R09: 1ffffffff207a16e
R10: dffffc0000000000 R11: fffffbfff207a16f R12: ffff888144ed8600
R13: ffff8880343ed8c0 R14: dffffc0000000000 R15: 0000000000000000
FS: 000055556a3e9380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005642a3888000 CR3: 0000000076420000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 49 8b 1f mov (%r15),%rbx
3: 48 89 d8 mov %rbx,%rax
6: 48 c1 e8 03 shr $0x3,%rax
a: 42 80 3c 30 00 cmpb $0x0,(%rax,%r14,1)
f: 74 08 je 0x19
11: 48 89 df mov %rbx,%rdi
14: e8 ca e6 17 f8 call 0xf817e6e3
19: 4c 8b 3b mov (%rbx),%r15
1c: 49 8d 9f bd 0c 00 00 lea 0xcbd(%r15),%rbx
23: 48 89 d8 mov %rbx,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 42 0f b6 04 30 movzbl (%rax,%r14,1),%eax <-- trapping instruction
2f: 84 c0 test %al,%al
31: 0f 85 4b 07 00 00 jne 0x782
37: 0f b6 1b movzbl (%rbx),%ebx
3a: 31 ff xor %edi,%edi
3c: 89 de mov %ebx,%esi
3e: e8 .byte 0xe8
3f: f0 lock