Extracting prog: 1m22.383643508s
Minimizing prog: 7m32.607024663s
Simplifying prog options: 0s
Extracting C: 44.022969668s
Simplifying C: 3m54.142285962s


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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-mkdirat-mount-openat-write
detailed listing:
executing program 0:
socket$inet_tcp(0x2, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./tracing\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./tracing\x00', &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./tracing/uprobe_events\x00', 0x401, 0x0)
write(r0, &(0x7f0000000300)='p:t-st/ev_nt1 ./file0:0', 0x17)

program crashed: KASAN: slab-out-of-bounds Write in __trace_probe_log_err
program crashed: KASAN: slab-out-of-bounds Write in __trace_probe_log_err
single: successfully extracted reproducer
found reproducer with 5 syscalls
minimizing guilty program
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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-mkdirat-mount-openat
detailed listing:
executing program 0:
socket$inet_tcp(0x2, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./tracing\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./tracing\x00', &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./tracing/uprobe_events\x00', 0x401, 0x0)

program did not crash
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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-mkdirat-mount-write
detailed listing:
executing program 0:
socket$inet_tcp(0x2, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./tracing\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./tracing\x00', &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
write(0xffffffffffffffff, &(0x7f0000000300)='p:t-st/ev_nt1 ./file0:0', 0x17)

program did not crash
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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-mkdirat-openat-write
detailed listing:
executing program 0:
socket$inet_tcp(0x2, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./tracing\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./tracing/uprobe_events\x00', 0x401, 0x0)
write(r0, &(0x7f0000000300)='p:t-st/ev_nt1 ./file0:0', 0x17)

program did not crash
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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-mount-openat-write
detailed listing:
executing program 0:
socket$inet_tcp(0x2, 0x1, 0x0)
mount(0x0, &(0x7f00000000c0)='./tracing\x00', &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./tracing/uprobe_events\x00', 0x401, 0x0)
write(r0, &(0x7f0000000300)='p:t-st/ev_nt1 ./file0:0', 0x17)

program did not crash
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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./tracing\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./tracing\x00', &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./tracing/uprobe_events\x00', 0x401, 0x0)
write(r0, &(0x7f0000000300)='p:t-st/ev_nt1 ./file0:0', 0x17)

program crashed: KASAN: slab-out-of-bounds Write in __trace_probe_log_err
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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(0x0, &(0x7f00000000c0)='./tracing\x00', &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./tracing/uprobe_events\x00', 0x401, 0x0)
write(r0, &(0x7f0000000300)='p:t-st/ev_nt1 ./file0:0', 0x17)

program did not crash
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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./tracing\x00', 0x1ff)
mount(0x0, 0x0, &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./tracing/uprobe_events\x00', 0x401, 0x0)
write(r0, &(0x7f0000000300)='p:t-st/ev_nt1 ./file0:0', 0x17)

program did not crash
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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./tracing\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./tracing\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./tracing/uprobe_events\x00', 0x401, 0x0)
write(r0, &(0x7f0000000300)='p:t-st/ev_nt1 ./file0:0', 0x17)

program did not crash
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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./tracing\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./tracing\x00', &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x401, 0x0)
write(r0, &(0x7f0000000300)='p:t-st/ev_nt1 ./file0:0', 0x17)

program did not crash
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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./tracing\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./tracing\x00', &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./tracing/uprobe_events\x00', 0x401, 0x0)
write(r0, 0x0, 0x0)

program did not crash
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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./tracing\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./tracing\x00', &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./tracing/uprobe_events\x00', 0x401, 0x0)
write(r0, &(0x7f0000000300), 0x0)

program did not crash
extracting C reproducer
testing compiled C 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: KASAN: slab-out-of-bounds Write in __trace_probe_log_err
simplifying C reproducer
testing compiled C program (duration=30s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: KASAN: slab-out-of-bounds Write in __trace_probe_log_err
testing compiled C program (duration=30s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program did not crash
testing compiled C program (duration=30s, {Threaded:false 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program did not crash
testing compiled C program (duration=30s, {Threaded:false 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: KASAN: slab-out-of-bounds Write in __trace_probe_log_err
testing compiled C program (duration=30s, {Threaded:false 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: KASAN: slab-out-of-bounds Write in __trace_probe_log_err
testing compiled C program (duration=30s, {Threaded:false 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: KASAN: slab-out-of-bounds Write in __trace_probe_log_err
testing compiled C program (duration=30s, {Threaded:false 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: KASAN: slab-out-of-bounds Write in __trace_probe_log_err
testing program (duration=30s, {Threaded:false 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./tracing\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./tracing\x00', &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./tracing/uprobe_events\x00', 0x401, 0x0)
write(r0, &(0x7f0000000300)='p:t-st/ev_nt1 ./file0:0', 0x17)

program crashed: KASAN: slab-out-of-bounds Write in __trace_probe_log_err
validation run: crashed=true
testing program (duration=30s, {Threaded:false 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./tracing\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./tracing\x00', &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./tracing/uprobe_events\x00', 0x401, 0x0)
write(r0, &(0x7f0000000300)='p:t-st/ev_nt1 ./file0:0', 0x17)

program crashed: KASAN: slab-out-of-bounds Write in __trace_probe_log_err
validation run: crashed=true
testing program (duration=30s, {Threaded:false 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./tracing\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./tracing\x00', &(0x7f0000000100)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./tracing/uprobe_events\x00', 0x401, 0x0)
write(r0, &(0x7f0000000300)='p:t-st/ev_nt1 ./file0:0', 0x17)

program crashed: KASAN: slab-out-of-bounds Write in __trace_probe_log_err
validation run: crashed=true
reproducing took 15m29.144153714s
repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-out-of-bounds in __trace_probe_log_err+0x2ad/0x2b0 kernel/trace/trace_probe.c:199
Write of size 1 at addr ffff8881175999ff by task syz.5.97/502

CPU: 1 PID: 502 Comm: syz.5.97 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Call Trace:
 __dump_stack+0x21/0x24 lib/dump_stack.c:77
 dump_stack_lvl+0x1a7/0x208 lib/dump_stack.c:118
 print_address_description+0x7f/0x2c0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:435 [inline]
 kasan_report+0x100/0x140 mm/kasan/report.c:452
 __asan_report_store1_noabort+0x17/0x20 mm/kasan/report_generic.c:311
 __trace_probe_log_err+0x2ad/0x2b0 kernel/trace/trace_probe.c:199
 trace_uprobe_create+0x355/0xb90 kernel/trace/trace_uprobe.c:588
 create_or_delete_trace_uprobe+0x89/0xc0 kernel/trace/trace_uprobe.c:731
 trace_run_command kernel/trace/trace.c:9575 [inline]
 trace_parse_run_command+0x296/0x450 kernel/trace/trace.c:9634
 probes_write+0x34/0x40 kernel/trace/trace_uprobe.c:800
 vfs_write+0x344/0xd70 fs/read_write.c:603
 ksys_write+0x14a/0x260 fs/read_write.c:658
 __do_sys_write fs/read_write.c:670 [inline]
 __se_sys_write fs/read_write.c:667 [inline]
 __x64_sys_write+0x7b/0x90 fs/read_write.c:667
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fc2c3fd9159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc535e20a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fc2c4260fa0 RCX: 00007fc2c3fd9159
RDX: 0000000000000017 RSI: 0000200000000300 RDI: 0000000000000003
RBP: 00007fc2c407006b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc2c4260fac R14: 00007fc2c4260fa0 R15: 00007fc2c4260fa0

Allocated by task 0:
(stack is not available)

The buggy address belongs to the object at ffff8881175999c0
 which belongs to the cache kmalloc-32 of size 32
The buggy address is located 31 bytes to the right of
 32-byte region [ffff8881175999c0, ffff8881175999e0)
The buggy address belongs to the page:
page:ffffea00045d6640 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x117599
flags: 0x4000000000000200(slab)
raw: 4000000000000200 ffffea00045cee80 0000000200000002 ffff888100043980
raw: 0000000000000000 0000000080400040 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 104, ts 5473409308, free_ts 0
 set_page_owner include/linux/page_owner.h:35 [inline]
 post_alloc_hook mm/page_alloc.c:2456 [inline]
 prep_new_page+0x176/0x190 mm/page_alloc.c:2462
 get_page_from_freelist+0x225f/0x23f0 mm/page_alloc.c:4254
 __alloc_pages_nodemask+0x29a/0x640 mm/page_alloc.c:5384
 alloc_slab_page mm/slub.c:-1 [inline]
 allocate_slab mm/slub.c:1813 [inline]
 new_slab+0x84/0x3f0 mm/slub.c:1874
 new_slab_objects mm/slub.c:2632 [inline]
 ___slab_alloc+0x2f8/0x4c0 mm/slub.c:2796
 __slab_alloc+0x63/0xa0 mm/slub.c:2836
 slab_alloc_node mm/slub.c:2918 [inline]
 slab_alloc mm/slub.c:2960 [inline]
 __kmalloc+0x1f9/0x330 mm/slub.c:4034
 kmalloc include/linux/slab.h:560 [inline]
 shmem_initxattrs+0xd1/0x1f0 mm/shmem.c:3216
 security_inode_init_security+0x249/0x380 security/security.c:1033
 shmem_symlink+0xd0/0x4f0 mm/shmem.c:3123
 vfs_symlink+0x339/0x4c0 fs/namei.c:4149
 do_symlinkat+0x10e/0x3d0 fs/namei.c:4176
 __do_sys_symlink fs/namei.c:4195 [inline]
 __se_sys_symlink fs/namei.c:4193 [inline]
 __x64_sys_symlink+0x60/0x70 fs/namei.c:4193
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
page_owner free stack trace missing

Memory state around the buggy address:
 ffff888117599880: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
 ffff888117599900: fa fb fb fb fc fc fc fc 00 00 01 fc fc fc fc fc
>ffff888117599980: fb fb fb fb fc fc fc fc 00 00 00 00 fc fc fc fc
                                                                ^
 ffff888117599a00: 00 00 00 fc fc fc fc fc fb fb fb fb fc fc fc fc
 ffff888117599a80: fb fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
==================================================================

final repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-out-of-bounds in __trace_probe_log_err+0x2ad/0x2b0 kernel/trace/trace_probe.c:199
Write of size 1 at addr ffff8881175999ff by task syz.5.97/502

CPU: 1 PID: 502 Comm: syz.5.97 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Call Trace:
 __dump_stack+0x21/0x24 lib/dump_stack.c:77
 dump_stack_lvl+0x1a7/0x208 lib/dump_stack.c:118
 print_address_description+0x7f/0x2c0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:435 [inline]
 kasan_report+0x100/0x140 mm/kasan/report.c:452
 __asan_report_store1_noabort+0x17/0x20 mm/kasan/report_generic.c:311
 __trace_probe_log_err+0x2ad/0x2b0 kernel/trace/trace_probe.c:199
 trace_uprobe_create+0x355/0xb90 kernel/trace/trace_uprobe.c:588
 create_or_delete_trace_uprobe+0x89/0xc0 kernel/trace/trace_uprobe.c:731
 trace_run_command kernel/trace/trace.c:9575 [inline]
 trace_parse_run_command+0x296/0x450 kernel/trace/trace.c:9634
 probes_write+0x34/0x40 kernel/trace/trace_uprobe.c:800
 vfs_write+0x344/0xd70 fs/read_write.c:603
 ksys_write+0x14a/0x260 fs/read_write.c:658
 __do_sys_write fs/read_write.c:670 [inline]
 __se_sys_write fs/read_write.c:667 [inline]
 __x64_sys_write+0x7b/0x90 fs/read_write.c:667
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fc2c3fd9159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc535e20a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fc2c4260fa0 RCX: 00007fc2c3fd9159
RDX: 0000000000000017 RSI: 0000200000000300 RDI: 0000000000000003
RBP: 00007fc2c407006b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc2c4260fac R14: 00007fc2c4260fa0 R15: 00007fc2c4260fa0

Allocated by task 0:
(stack is not available)

The buggy address belongs to the object at ffff8881175999c0
 which belongs to the cache kmalloc-32 of size 32
The buggy address is located 31 bytes to the right of
 32-byte region [ffff8881175999c0, ffff8881175999e0)
The buggy address belongs to the page:
page:ffffea00045d6640 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x117599
flags: 0x4000000000000200(slab)
raw: 4000000000000200 ffffea00045cee80 0000000200000002 ffff888100043980
raw: 0000000000000000 0000000080400040 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 104, ts 5473409308, free_ts 0
 set_page_owner include/linux/page_owner.h:35 [inline]
 post_alloc_hook mm/page_alloc.c:2456 [inline]
 prep_new_page+0x176/0x190 mm/page_alloc.c:2462
 get_page_from_freelist+0x225f/0x23f0 mm/page_alloc.c:4254
 __alloc_pages_nodemask+0x29a/0x640 mm/page_alloc.c:5384
 alloc_slab_page mm/slub.c:-1 [inline]
 allocate_slab mm/slub.c:1813 [inline]
 new_slab+0x84/0x3f0 mm/slub.c:1874
 new_slab_objects mm/slub.c:2632 [inline]
 ___slab_alloc+0x2f8/0x4c0 mm/slub.c:2796
 __slab_alloc+0x63/0xa0 mm/slub.c:2836
 slab_alloc_node mm/slub.c:2918 [inline]
 slab_alloc mm/slub.c:2960 [inline]
 __kmalloc+0x1f9/0x330 mm/slub.c:4034
 kmalloc include/linux/slab.h:560 [inline]
 shmem_initxattrs+0xd1/0x1f0 mm/shmem.c:3216
 security_inode_init_security+0x249/0x380 security/security.c:1033
 shmem_symlink+0xd0/0x4f0 mm/shmem.c:3123
 vfs_symlink+0x339/0x4c0 fs/namei.c:4149
 do_symlinkat+0x10e/0x3d0 fs/namei.c:4176
 __do_sys_symlink fs/namei.c:4195 [inline]
 __se_sys_symlink fs/namei.c:4193 [inline]
 __x64_sys_symlink+0x60/0x70 fs/namei.c:4193
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
page_owner free stack trace missing

Memory state around the buggy address:
 ffff888117599880: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
 ffff888117599900: fa fb fb fb fc fc fc fc 00 00 01 fc fc fc fc fc
>ffff888117599980: fb fb fb fb fc fc fc fc 00 00 00 00 fc fc fc fc
                                                                ^
 ffff888117599a00: 00 00 00 fc fc fc fc fc fb fb fb fb fc fc fc fc
 ffff888117599a80: fb fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
==================================================================