Extracting prog: 1m42.156076982s
Minimizing prog: 4m46.48187183s
Simplifying prog options: 2m20.357007098s
Extracting C: 55.231473001s
Simplifying C: 8m32.15531139s


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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$snapshot-ioctl$SNAPSHOT_AVAIL_SWAP_SIZE
detailed listing:
executing program 0:
r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000000), 0x101080, 0x0)
ioctl$SNAPSHOT_AVAIL_SWAP_SIZE(r0, 0x80083313, 0x0)

program crashed: Internal error in snapshot_ioctl
single: successfully extracted reproducer
found reproducer with 2 syscalls
minimizing guilty program
testing program (duration=45.879132121s, {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}}): openat$snapshot
detailed listing:
executing program 0:
openat$snapshot(0xffffffffffffff9c, &(0x7f0000000000), 0x101080, 0x0)

program did not crash
testing program (duration=45.879132121s, {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}}): ioctl$SNAPSHOT_AVAIL_SWAP_SIZE
detailed listing:
executing program 0:
ioctl$SNAPSHOT_AVAIL_SWAP_SIZE(0xffffffffffffffff, 0x80083313, 0x0)

program did not crash
testing program (duration=45.879132121s, {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}}): openat$snapshot-ioctl$SNAPSHOT_AVAIL_SWAP_SIZE
detailed listing:
executing program 0:
r0 = openat$snapshot(0xffffffffffffff9c, 0x0, 0x101080, 0x0)
ioctl$SNAPSHOT_AVAIL_SWAP_SIZE(r0, 0x80083313, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=45.879132121s, {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}}): openat$snapshot-ioctl$SNAPSHOT_AVAIL_SWAP_SIZE
program crashed: Internal error in sys_mount
a never seen crash title: Internal error in sys_mount, ignore
simplifying guilty program options
testing program (duration=45.879132121s, {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}}): openat$snapshot-ioctl$SNAPSHOT_AVAIL_SWAP_SIZE
detailed listing:
executing program 0:
r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000000), 0x101080, 0x0)
ioctl$SNAPSHOT_AVAIL_SWAP_SIZE(r0, 0x80083313, 0x0)

program crashed: Internal error in snapshot_ioctl
extracting C reproducer
testing compiled C program (duration=45.879132121s, {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}}): openat$snapshot-ioctl$SNAPSHOT_AVAIL_SWAP_SIZE
program crashed: Internal error in snapshot_ioctl
simplifying C reproducer
testing compiled C program (duration=45.879132121s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$snapshot-ioctl$SNAPSHOT_AVAIL_SWAP_SIZE
program crashed: Internal error in snapshot_ioctl
testing compiled C program (duration=45.879132121s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$snapshot-ioctl$SNAPSHOT_AVAIL_SWAP_SIZE
program crashed: Internal error in snapshot_ioctl
testing compiled C program (duration=45.879132121s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$snapshot-ioctl$SNAPSHOT_AVAIL_SWAP_SIZE
program crashed: Internal error in snapshot_ioctl
testing compiled C program (duration=45.879132121s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$snapshot-ioctl$SNAPSHOT_AVAIL_SWAP_SIZE
program crashed: Internal error in snapshot_ioctl
testing compiled C program (duration=45.879132121s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$snapshot-ioctl$SNAPSHOT_AVAIL_SWAP_SIZE
program crashed: Internal error in snapshot_ioctl
testing compiled C program (duration=45.879132121s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$snapshot-ioctl$SNAPSHOT_AVAIL_SWAP_SIZE
program crashed: Internal error in snapshot_ioctl
testing program (duration=45.879132121s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$snapshot-ioctl$SNAPSHOT_AVAIL_SWAP_SIZE
detailed listing:
executing program 0:
r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000000), 0x101080, 0x0)
ioctl$SNAPSHOT_AVAIL_SWAP_SIZE(r0, 0x80083313, 0x0)

program crashed: Internal error in snapshot_ioctl
validation run: crashed=true
testing program (duration=45.879132121s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$snapshot-ioctl$SNAPSHOT_AVAIL_SWAP_SIZE
detailed listing:
executing program 0:
r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000000), 0x101080, 0x0)
ioctl$SNAPSHOT_AVAIL_SWAP_SIZE(r0, 0x80083313, 0x0)

program crashed: Internal error in snapshot_ioctl
validation run: crashed=true
testing program (duration=45.879132121s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$snapshot-ioctl$SNAPSHOT_AVAIL_SWAP_SIZE
detailed listing:
executing program 0:
r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000000), 0x101080, 0x0)
ioctl$SNAPSHOT_AVAIL_SWAP_SIZE(r0, 0x80083313, 0x0)

program crashed: Internal error in snapshot_ioctl
validation run: crashed=true
reproducing took 23m28.730760246s
repro crashed as (corrupted=false):
Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4215 Comm: syz.0.17 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 42400405 (nZcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=jc)
pc : snapshot_ioctl+0x7b4/0xdd8 kernel/power/user.c:368
lr : snapshot_ioctl+0x790/0xdd8 kernel/power/user.c:355
sp : ffff80001fb47ce0
x29: ffff80001fb47ce0 x28: ffff0000d76a3680 x27: 0000000000000003
x26: 1fffe0001aed46d0 x25: dfff800000000000 x24: 0000000000003300
x23: dfff800000000000 x22: 0000000000400140 x21: 0000000000000000
x20: 00000000fffffff2 x19: 0000000000000000 x18: 0000000000000000
x17: ffff800016d04000 x16: ffff8000082efca8 x15: ffff8000167e4500
x14: ffff0000d76a4080 x13: dfff800000000000 x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000ffffffffffff x9 : 0000000000000000
x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000
x5 : ffff800016ea4120 x4 : 0000000000000008 x3 : ffff8000082bfb8c
x2 : 0000000000000001 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 snapshot_ioctl+0x7b4/0xdd8 kernel/power/user.c:357
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl fs/ioctl.c:860 [inline]
 __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:860
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Code: ea2a011f 9a9f026b d503229f f8000969 (140000b2) 
---[ end trace b156e8309790bda6 ]---
----------------
Code disassembly (best guess):
   0:	ea2a011f 	bics	xzr, x8, x10
   4:	9a9f026b 	csel	x11, x19, xzr, eq	// eq = none
   8:	d503229f 	csdb
   c:	f8000969 	sttr	x9, [x11]
* 10:	140000b2 	b	0x2d8 <-- trapping instruction

final repro crashed as (corrupted=false):
Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4215 Comm: syz.0.17 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 42400405 (nZcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=jc)
pc : snapshot_ioctl+0x7b4/0xdd8 kernel/power/user.c:368
lr : snapshot_ioctl+0x790/0xdd8 kernel/power/user.c:355
sp : ffff80001fb47ce0
x29: ffff80001fb47ce0 x28: ffff0000d76a3680 x27: 0000000000000003
x26: 1fffe0001aed46d0 x25: dfff800000000000 x24: 0000000000003300
x23: dfff800000000000 x22: 0000000000400140 x21: 0000000000000000
x20: 00000000fffffff2 x19: 0000000000000000 x18: 0000000000000000
x17: ffff800016d04000 x16: ffff8000082efca8 x15: ffff8000167e4500
x14: ffff0000d76a4080 x13: dfff800000000000 x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000ffffffffffff x9 : 0000000000000000
x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000
x5 : ffff800016ea4120 x4 : 0000000000000008 x3 : ffff8000082bfb8c
x2 : 0000000000000001 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 snapshot_ioctl+0x7b4/0xdd8 kernel/power/user.c:357
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl fs/ioctl.c:860 [inline]
 __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:860
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Code: ea2a011f 9a9f026b d503229f f8000969 (140000b2) 
---[ end trace b156e8309790bda6 ]---
----------------
Code disassembly (best guess):
   0:	ea2a011f 	bics	xzr, x8, x10
   4:	9a9f026b 	csel	x11, x19, xzr, eq	// eq = none
   8:	d503229f 	csdb
   c:	f8000969 	sttr	x9, [x11]
* 10:	140000b2 	b	0x2d8 <-- trapping instruction