Extracting prog: 3m28.337677016s
Minimizing prog: 14m24.646521334s
Simplifying prog options: 0s
Extracting C: 37.27524802s
Simplifying C: 11m24.884775314s
extracting reproducer from 1 programs
testing a last program of every proc
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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_sock_diag-socket$inet-sendmsg$SOCK_DIAG_BY_FAMILY
detailed listing:
executing program 0:
r0 = socket$nl_sock_diag(0x10, 0x3, 0x4)
socket$inet(0x2, 0x1, 0x100) (async)
sendmsg$SOCK_DIAG_BY_FAMILY(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x14, 0x601, 0x0, 0x0, {0x2b, 0xfa}}, 0x14}}, 0x0)
program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 1m40s
testing program (duration=1m40s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_sock_diag-socket$inet-sendmsg$SOCK_DIAG_BY_FAMILY
detailed listing:
executing program 0:
r0 = socket$nl_sock_diag(0x10, 0x3, 0x4)
socket$inet(0x2, 0x1, 0x100) (async)
sendmsg$SOCK_DIAG_BY_FAMILY(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x14, 0x601, 0x0, 0x0, {0x2b, 0xfa}}, 0x14}}, 0x0)
program crashed: general protection fault in smc_diag_dump_proto
single: successfully extracted reproducer
found reproducer with 3 syscalls
minimizing guilty program
testing program (duration=1m40s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_sock_diag-socket$inet
detailed listing:
executing program 0:
socket$nl_sock_diag(0x10, 0x3, 0x4)
socket$inet(0x2, 0x1, 0x100) (async)
program did not crash
testing program (duration=1m40s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_sock_diag-sendmsg$SOCK_DIAG_BY_FAMILY
detailed listing:
executing program 0:
r0 = socket$nl_sock_diag(0x10, 0x3, 0x4)
sendmsg$SOCK_DIAG_BY_FAMILY(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x14, 0x601, 0x0, 0x0, {0x2b, 0xfa}}, 0x14}}, 0x0)
program did not crash
testing program (duration=1m40s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet-sendmsg$SOCK_DIAG_BY_FAMILY
detailed listing:
executing program 0:
socket$inet(0x2, 0x1, 0x100) (async)
sendmsg$SOCK_DIAG_BY_FAMILY(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x14, 0x601, 0x0, 0x0, {0x2b, 0xfa}}, 0x14}}, 0x0)
program did not crash
testing program (duration=1m40s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_sock_diag-socket$inet-sendmsg$SOCK_DIAG_BY_FAMILY
detailed listing:
executing program 0:
r0 = socket$nl_sock_diag(0x10, 0x3, 0x4)
socket$inet(0x2, 0x1, 0x100)
sendmsg$SOCK_DIAG_BY_FAMILY(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x14, 0x601, 0x0, 0x0, {0x2b, 0xfa}}, 0x14}}, 0x0)
program did not crash
testing program (duration=1m40s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_sock_diag-socket$inet-sendmsg$SOCK_DIAG_BY_FAMILY
detailed listing:
executing program 0:
r0 = socket$nl_sock_diag(0x10, 0x3, 0x4)
socket$inet(0x2, 0x1, 0x100) (async)
sendmsg$SOCK_DIAG_BY_FAMILY(r0, 0x0, 0x0)
program did not crash
testing program (duration=1m40s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_sock_diag-socket$inet-sendmsg$SOCK_DIAG_BY_FAMILY
detailed listing:
executing program 0:
r0 = socket$nl_sock_diag(0x10, 0x3, 0x4)
socket$inet(0x2, 0x1, 0x100) (async)
sendmsg$SOCK_DIAG_BY_FAMILY(r0, &(0x7f0000000140)={0x0, 0x0, 0x0}, 0x0)
program did not crash
testing program (duration=1m40s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_sock_diag-socket$inet-sendmsg$SOCK_DIAG_BY_FAMILY
detailed listing:
executing program 0:
r0 = socket$nl_sock_diag(0x10, 0x3, 0x4)
socket$inet(0x2, 0x1, 0x100) (async)
sendmsg$SOCK_DIAG_BY_FAMILY(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000080)={0x0}}, 0x0)
program did not crash
extracting C reproducer
testing compiled C program (duration=1m40s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_sock_diag-socket$inet-sendmsg$SOCK_DIAG_BY_FAMILY
program crashed: general protection fault in smc_diag_dump_proto
simplifying C reproducer
testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_sock_diag-socket$inet-sendmsg$SOCK_DIAG_BY_FAMILY
program did not crash
testing compiled C program (duration=1m40s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_sock_diag-socket$inet-sendmsg$SOCK_DIAG_BY_FAMILY
program crashed: general protection fault in smc_diag_dump_proto
testing compiled C program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_sock_diag-socket$inet-sendmsg$SOCK_DIAG_BY_FAMILY
program crashed: general protection fault in smc_diag_dump_proto
testing compiled C program (duration=1m40s, {Threaded:true Repeat:true 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_sock_diag-socket$inet-sendmsg$SOCK_DIAG_BY_FAMILY
program crashed: general protection fault in smc_diag_dump_proto
testing compiled C program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_sock_diag-socket$inet-sendmsg$SOCK_DIAG_BY_FAMILY
program crashed: general protection fault in smc_diag_dump_proto
testing compiled C program (duration=1m40s, {Threaded:true Repeat:true 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_sock_diag-socket$inet-sendmsg$SOCK_DIAG_BY_FAMILY
program crashed: general protection fault in smc_diag_dump_proto
testing compiled C program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_sock_diag-socket$inet-sendmsg$SOCK_DIAG_BY_FAMILY
program crashed: general protection fault in smc_diag_dump_proto
testing program (duration=1m40s, {Threaded:true Repeat:true 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_sock_diag-socket$inet-sendmsg$SOCK_DIAG_BY_FAMILY
detailed listing:
executing program 0:
r0 = socket$nl_sock_diag(0x10, 0x3, 0x4)
socket$inet(0x2, 0x1, 0x100) (async)
sendmsg$SOCK_DIAG_BY_FAMILY(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x14, 0x601, 0x0, 0x0, {0x2b, 0xfa}}, 0x14}}, 0x0)
program crashed: general protection fault in smc_diag_dump_proto
validation run: crashed=true
testing program (duration=1m40s, {Threaded:true Repeat:true 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_sock_diag-socket$inet-sendmsg$SOCK_DIAG_BY_FAMILY
detailed listing:
executing program 0:
r0 = socket$nl_sock_diag(0x10, 0x3, 0x4)
socket$inet(0x2, 0x1, 0x100) (async)
sendmsg$SOCK_DIAG_BY_FAMILY(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x14, 0x601, 0x0, 0x0, {0x2b, 0xfa}}, 0x14}}, 0x0)
program crashed: general protection fault in smc_diag_dump_proto
validation run: crashed=true
testing program (duration=1m40s, {Threaded:true Repeat:true 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_sock_diag-socket$inet-sendmsg$SOCK_DIAG_BY_FAMILY
detailed listing:
executing program 0:
r0 = socket$nl_sock_diag(0x10, 0x3, 0x4)
socket$inet(0x2, 0x1, 0x100) (async)
sendmsg$SOCK_DIAG_BY_FAMILY(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, 0x14, 0x601, 0x0, 0x0, {0x2b, 0xfa}}, 0x14}}, 0x0)
program crashed: general protection fault in smc_diag_dump_proto
validation run: crashed=true
reproducing took 34m14.234414043s
repro crashed as (corrupted=false):
Oops: general protection fault, probably for non-canonical address 0xfbd5a5d5a0000003: 0000 [#1] SMP KASAN PTI
KASAN: maybe wild-memory-access in range [0xdead4ead00000018-0xdead4ead0000001f]
CPU: 1 UID: 0 PID: 6052 Comm: syz.0.27 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:smc_diag_msg_common_fill net/smc/smc_diag.c:44 [inline]
RIP: 0010:__smc_diag_dump net/smc/smc_diag.c:89 [inline]
RIP: 0010:smc_diag_dump_proto+0x4c8/0x1ff0 net/smc/smc_diag.c:217
Code: 80 3c 2f 00 74 08 48 89 df e8 14 28 fa f6 4c 8b 23 4d 85 e4 0f 84 26 02 00 00 48 89 5c 24 38 49 83 c4 18 4c 89 e0 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 e7 e8 e9 27 fa f6 4d 8b 2c 24 49 83 c5
RSP: 0018:ffffc900035e6f40 EFLAGS: 00010a06
RAX: 1bd5a9d5a0000003 RBX: ffff888076beb740 RCX: ffff88802ca91e00
RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000
RBP: ffffc900035e72b0 R08: ffff888076beb15f R09: 1ffff1100ed7d62b
R10: dffffc0000000000 R11: ffffed100ed7d62c R12: dead4ead00000018
R13: dffffc0000000000 R14: ffff888076beb100 R15: 1ffff1100ed7d6e8
FS: 00007fa4d95916c0(0000) GS:ffff888125d15000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa4d9590f98 CR3: 0000000070ad8000 CR4: 00000000003526f0
Call Trace:
smc_diag_dump+0x27/0xa0 net/smc/smc_diag.c:234
netlink_dump+0x6e4/0xe90 net/netlink/af_netlink.c:2327
__netlink_dump_start+0x5cb/0x7e0 net/netlink/af_netlink.c:2442
netlink_dump_start include/linux/netlink.h:341 [inline]
smc_diag_handler_dump+0x178/0x210 net/smc/smc_diag.c:251
sock_diag_rcv_msg+0x4c9/0x600 net/core/sock_diag.c:-1
netlink_rcv_skb+0x205/0x470 net/netlink/af_netlink.c:2552
netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
netlink_unicast+0x82c/0x9e0 net/netlink/af_netlink.c:1346
netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1896
sock_sendmsg_nosec net/socket.c:714 [inline]
__sock_sendmsg+0x21c/0x270 net/socket.c:729
____sys_sendmsg+0x505/0x830 net/socket.c:2614
___sys_sendmsg+0x21f/0x2a0 net/socket.c:2668
__sys_sendmsg net/socket.c:2700 [inline]
__do_sys_sendmsg net/socket.c:2705 [inline]
__se_sys_sendmsg net/socket.c:2703 [inline]
__x64_sys_sendmsg+0x19b/0x260 net/socket.c:2703
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa4d878eec9
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:00007fa4d9591038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fa4d89e6090 RCX: 00007fa4d878eec9
RDX: 0000000000000000 RSI: 0000200000000140 RDI: 0000000000000003
RBP: 00007fa4d8811f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa4d89e6128 R14: 00007fa4d89e6090 R15: 00007fff8c89b6e8
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:smc_diag_msg_common_fill net/smc/smc_diag.c:44 [inline]
RIP: 0010:__smc_diag_dump net/smc/smc_diag.c:89 [inline]
RIP: 0010:smc_diag_dump_proto+0x4c8/0x1ff0 net/smc/smc_diag.c:217
Code: 80 3c 2f 00 74 08 48 89 df e8 14 28 fa f6 4c 8b 23 4d 85 e4 0f 84 26 02 00 00 48 89 5c 24 38 49 83 c4 18 4c 89 e0 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 e7 e8 e9 27 fa f6 4d 8b 2c 24 49 83 c5
RSP: 0018:ffffc900035e6f40 EFLAGS: 00010a06
RAX: 1bd5a9d5a0000003 RBX: ffff888076beb740 RCX: ffff88802ca91e00
RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000
RBP: ffffc900035e72b0 R08: ffff888076beb15f R09: 1ffff1100ed7d62b
R10: dffffc0000000000 R11: ffffed100ed7d62c R12: dead4ead00000018
R13: dffffc0000000000 R14: ffff888076beb100 R15: 1ffff1100ed7d6e8
FS: 00007fa4d95916c0(0000) GS:ffff888125d15000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa4d9590f98 CR3: 0000000070ad8000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
0: 80 3c 2f 00 cmpb $0x0,(%rdi,%rbp,1)
4: 74 08 je 0xe
6: 48 89 df mov %rbx,%rdi
9: e8 14 28 fa f6 call 0xf6fa2822
e: 4c 8b 23 mov (%rbx),%r12
11: 4d 85 e4 test %r12,%r12
14: 0f 84 26 02 00 00 je 0x240
1a: 48 89 5c 24 38 mov %rbx,0x38(%rsp)
1f: 49 83 c4 18 add $0x18,%r12
23: 4c 89 e0 mov %r12,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) <-- trapping instruction
2f: 74 08 je 0x39
31: 4c 89 e7 mov %r12,%rdi
34: e8 e9 27 fa f6 call 0xf6fa2822
39: 4d 8b 2c 24 mov (%r12),%r13
3d: 49 rex.WB
3e: 83 .byte 0x83
3f: c5 .byte 0xc5
final repro crashed as (corrupted=false):
Oops: general protection fault, probably for non-canonical address 0xfbd5a5d5a0000003: 0000 [#1] SMP KASAN PTI
KASAN: maybe wild-memory-access in range [0xdead4ead00000018-0xdead4ead0000001f]
CPU: 1 UID: 0 PID: 6052 Comm: syz.0.27 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:smc_diag_msg_common_fill net/smc/smc_diag.c:44 [inline]
RIP: 0010:__smc_diag_dump net/smc/smc_diag.c:89 [inline]
RIP: 0010:smc_diag_dump_proto+0x4c8/0x1ff0 net/smc/smc_diag.c:217
Code: 80 3c 2f 00 74 08 48 89 df e8 14 28 fa f6 4c 8b 23 4d 85 e4 0f 84 26 02 00 00 48 89 5c 24 38 49 83 c4 18 4c 89 e0 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 e7 e8 e9 27 fa f6 4d 8b 2c 24 49 83 c5
RSP: 0018:ffffc900035e6f40 EFLAGS: 00010a06
RAX: 1bd5a9d5a0000003 RBX: ffff888076beb740 RCX: ffff88802ca91e00
RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000
RBP: ffffc900035e72b0 R08: ffff888076beb15f R09: 1ffff1100ed7d62b
R10: dffffc0000000000 R11: ffffed100ed7d62c R12: dead4ead00000018
R13: dffffc0000000000 R14: ffff888076beb100 R15: 1ffff1100ed7d6e8
FS: 00007fa4d95916c0(0000) GS:ffff888125d15000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa4d9590f98 CR3: 0000000070ad8000 CR4: 00000000003526f0
Call Trace:
smc_diag_dump+0x27/0xa0 net/smc/smc_diag.c:234
netlink_dump+0x6e4/0xe90 net/netlink/af_netlink.c:2327
__netlink_dump_start+0x5cb/0x7e0 net/netlink/af_netlink.c:2442
netlink_dump_start include/linux/netlink.h:341 [inline]
smc_diag_handler_dump+0x178/0x210 net/smc/smc_diag.c:251
sock_diag_rcv_msg+0x4c9/0x600 net/core/sock_diag.c:-1
netlink_rcv_skb+0x205/0x470 net/netlink/af_netlink.c:2552
netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
netlink_unicast+0x82c/0x9e0 net/netlink/af_netlink.c:1346
netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1896
sock_sendmsg_nosec net/socket.c:714 [inline]
__sock_sendmsg+0x21c/0x270 net/socket.c:729
____sys_sendmsg+0x505/0x830 net/socket.c:2614
___sys_sendmsg+0x21f/0x2a0 net/socket.c:2668
__sys_sendmsg net/socket.c:2700 [inline]
__do_sys_sendmsg net/socket.c:2705 [inline]
__se_sys_sendmsg net/socket.c:2703 [inline]
__x64_sys_sendmsg+0x19b/0x260 net/socket.c:2703
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa4d878eec9
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:00007fa4d9591038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fa4d89e6090 RCX: 00007fa4d878eec9
RDX: 0000000000000000 RSI: 0000200000000140 RDI: 0000000000000003
RBP: 00007fa4d8811f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa4d89e6128 R14: 00007fa4d89e6090 R15: 00007fff8c89b6e8
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:smc_diag_msg_common_fill net/smc/smc_diag.c:44 [inline]
RIP: 0010:__smc_diag_dump net/smc/smc_diag.c:89 [inline]
RIP: 0010:smc_diag_dump_proto+0x4c8/0x1ff0 net/smc/smc_diag.c:217
Code: 80 3c 2f 00 74 08 48 89 df e8 14 28 fa f6 4c 8b 23 4d 85 e4 0f 84 26 02 00 00 48 89 5c 24 38 49 83 c4 18 4c 89 e0 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 e7 e8 e9 27 fa f6 4d 8b 2c 24 49 83 c5
RSP: 0018:ffffc900035e6f40 EFLAGS: 00010a06
RAX: 1bd5a9d5a0000003 RBX: ffff888076beb740 RCX: ffff88802ca91e00
RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000
RBP: ffffc900035e72b0 R08: ffff888076beb15f R09: 1ffff1100ed7d62b
R10: dffffc0000000000 R11: ffffed100ed7d62c R12: dead4ead00000018
R13: dffffc0000000000 R14: ffff888076beb100 R15: 1ffff1100ed7d6e8
FS: 00007fa4d95916c0(0000) GS:ffff888125d15000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa4d9590f98 CR3: 0000000070ad8000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
0: 80 3c 2f 00 cmpb $0x0,(%rdi,%rbp,1)
4: 74 08 je 0xe
6: 48 89 df mov %rbx,%rdi
9: e8 14 28 fa f6 call 0xf6fa2822
e: 4c 8b 23 mov (%rbx),%r12
11: 4d 85 e4 test %r12,%r12
14: 0f 84 26 02 00 00 je 0x240
1a: 48 89 5c 24 38 mov %rbx,0x38(%rsp)
1f: 49 83 c4 18 add $0x18,%r12
23: 4c 89 e0 mov %r12,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) <-- trapping instruction
2f: 74 08 je 0x39
31: 4c 89 e7 mov %r12,%rdi
34: e8 e9 27 fa f6 call 0xf6fa2822
39: 4d 8b 2c 24 mov (%r12),%r13
3d: 49 rex.WB
3e: 83 .byte 0x83
3f: c5 .byte 0xc5